前言
此篇专门记录一些常见DB帮助类及其他帮助类，以便使用时不用重复造轮子。
DBHelper帮助类
①首当其冲的就是Sql Server帮助类，创建名为DbHelperSQL 的类 ，全部代码如下：
/// <summary> /// 数据访问抽象基础类 /// Copyright (C) Maticsoft /// </summary> public abstract class DbHelperSQL { //数据库连接字符串(web.config来配置)，多数据库可使用DbHelperSQLP来实现. public static string connectionString = PubConstant.ConnectionString; public DbHelperSQL() { } #region 公用方法 /// <summary> /// 判断是否存在某表的某个字段 /// </summary> /// <param name="tableName">表名称</param> /// <param name="columnName">列名称</param> /// <returns>是否存在</returns> public static bool ColumnExists(string tableName, string columnName) { string sql = "select count(1) from syscolumns where [id]=object_id('" + tableName + "') and [name]='" + columnName + "'"; object res = GetSingle(sql); if (res == null) { return false; } return Convert.ToInt32(res) > 0; } public static int GetMaxID(string FieldName, string TableName) { string strsql = "select max(" + FieldName + ")+1 from " + TableName; object obj = GetSingle(strsql); if (obj == null) { return 1; } else { return int.Parse(obj.ToString()); } } public static bool Exists(string strSql) { object obj = GetSingle(strSql); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); //也可能=0 } if (cmdresult == 0) { return false; } else { return true; } } /// <summary> /// 表是否存在 /// </summary> /// <param name="TableName"></param> /// <returns></returns> public static bool TabExists(string TableName) { string strsql = "select count(*) from sysobjects where id = object_id(N'[" + TableName + "]') and OBJECTPROPERTY(id, N'IsUserTable') = 1"; //string strsql = "SELECT count(*) FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[" + TableName + "]') AND type in (N'U')"; object obj = GetSingle(strsql); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } public static bool Exists(string strSql, params SqlParameter[] cmdParms) { object obj = GetSingle(strSql, cmdParms); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } #endregion #region 执行简单SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand(SQLString, connection)) { try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SqlClient.SqlException e) { connection.Close(); throw e; } } } } public static int ExecuteSqlByTime(string SQLString, int Times) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand(SQLString, connection)) { try { connection.Open(); cmd.CommandTimeout = Times; int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SqlClient.SqlException e) { connection.Close(); throw e; } } } } /// <summary> /// 执行Sql和Oracle滴混合事务 /// </summary> /// <param name="list">SQL命令行列表</param> /// <param name="oracleCmdSqlList">Oracle命令行列表</param> /// <returns>执行结果 0-由于SQL造成事务失败 -1 由于Oracle造成事务失败 1-整体事务执行成功</returns> public static int ExecuteSqlTran(List<CommandInfo> list, List<CommandInfo> oracleCmdSqlList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; SqlTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { foreach (CommandInfo myDE in list) { string cmdText = myDE.CommandText; SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters; PrepareCommand(cmd, conn, tx, cmdText, cmdParms); if (myDE.EffentNextType == EffentNextType.SolicitationEvent) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { tx.Rollback(); throw new Exception("违背要求"+myDE.CommandText+"必须符合select count(..的格式"); //return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (isHave) { //引发事件 myDE.OnSolicitationEvent(); } } if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "必须符合select count(..的格式"); //return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须大于0"); //return 0; } if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须等于0"); //return 0; } continue; } int val = cmd.ExecuteNonQuery(); if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "必须有影响行"); //return 0; } cmd.Parameters.Clear(); } string oraConnectionString = PubConstant.GetConnectionString("ConnectionStringPPC"); bool res = OracleHelper.ExecuteSqlTran(oraConnectionString, oracleCmdSqlList); if (!res) { tx.Rollback(); throw new Exception("Oracle执行失败"); // return -1; } tx.Commit(); return 1; } catch (System.Data.SqlClient.SqlException e) { tx.Rollback(); throw e; } catch (Exception e) { tx.Rollback(); throw e; } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">多条SQL语句</param> public static int ExecuteSqlTran(List<String> SQLStringList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; SqlTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { int count = 0; for (int n = 0; n < SQLStringList.Count; n++) { string strsql = SQLStringList[n]; if (strsql.Trim().Length > 1) { cmd.CommandText = strsql; count += cmd.ExecuteNonQuery(); } } tx.Commit(); return count; } catch { tx.Rollback(); return 0; } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, string content) { using (SqlConnection connection = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(SQLString, connection); System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText); myParameter.Value = content; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SqlClient.SqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static object ExecuteSqlGet(string SQLString, string content) { using (SqlConnection connection = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(SQLString, connection); System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText); myParameter.Value = content; cmd.Parameters.Add(myParameter); try { connection.Open(); object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SqlClient.SqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例) /// </summary> /// <param name="strSQL">SQL语句</param> /// <param name="fs">图像字节,数据库的字段类型为image的情况</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlInsertImg(string strSQL, byte[] fs) { using (SqlConnection connection = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(strSQL, connection); System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@fs", SqlDbType.Image); myParameter.Value = fs; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SqlClient.SqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand(SQLString, connection)) { try { connection.Open(); object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SqlClient.SqlException e) { connection.Close(); throw e; } } } } public static object GetSingle(string SQLString, int Times) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand(SQLString, connection)) { try { connection.Open(); cmd.CommandTimeout = Times; object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SqlClient.SqlException e) { connection.Close(); throw e; } } } } /// <summary> /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>SqlDataReader</returns> public static SqlDataReader ExecuteReader(string strSQL) { SqlConnection connection = new SqlConnection(connectionString); SqlCommand cmd = new SqlCommand(strSQL, connection); try { connection.Open(); SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); return myReader; } catch (System.Data.SqlClient.SqlException e) { throw e; } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString) { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); SqlDataAdapter command = new SqlDataAdapter(SQLString, connection); command.Fill(ds, "ds"); } catch (System.Data.SqlClient.SqlException ex) { throw new Exception(ex.Message); } return ds; } } public static DataSet Query(string SQLString, int Times) { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); SqlDataAdapter command = new SqlDataAdapter(SQLString, connection); command.SelectCommand.CommandTimeout = Times; command.Fill(ds, "ds"); } catch (System.Data.SqlClient.SqlException ex) { throw new Exception(ex.Message); } return ds; } } #endregion #region 执行带参数的SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, params SqlParameter[] cmdParms) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); int rows = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return rows; } catch (System.Data.SqlClient.SqlException e) { throw e; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param> public static void ExecuteSqlTran(Hashtable SQLStringList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); try { //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText = myDE.Key.ToString(); SqlParameter[] cmdParms = (SqlParameter[])myDE.Value; PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param> public static int ExecuteSqlTran(System.Collections.Generic.List<CommandInfo> cmdList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); try { int count = 0; //循环 foreach (CommandInfo myDE in cmdList) { string cmdText = myDE.CommandText; SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters; PrepareCommand(cmd, conn, trans, cmdText, cmdParms); if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { trans.Rollback(); return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave) { trans.Rollback(); return 0; } if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave) { trans.Rollback(); return 0; } continue; } int val = cmd.ExecuteNonQuery(); count += val; if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0) { trans.Rollback(); return 0; } cmd.Parameters.Clear(); } trans.Commit(); return count; } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param> public static void ExecuteSqlTranWithIndentity(System.Collections.Generic.List<CommandInfo> SQLStringList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); try { int indentity = 0; //循环 foreach (CommandInfo myDE in SQLStringList) { string cmdText = myDE.CommandText; SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters; foreach (SqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.InputOutput) { q.Value = indentity; } } PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); foreach (SqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.Output) { indentity = Convert.ToInt32(q.Value); } } cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param> public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); try { int indentity = 0; //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText = myDE.Key.ToString(); SqlParameter[] cmdParms = (SqlParameter[])myDE.Value; foreach (SqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.InputOutput) { q.Value = indentity; } } PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); foreach (SqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.Output) { indentity = Convert.ToInt32(q.Value); } } cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString, params SqlParameter[] cmdParms) { using (SqlConnection connection = new SqlConnection(connectionString)) { using (SqlCommand cmd = new SqlCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); object obj = cmd.ExecuteScalar(); cmd.Parameters.Clear(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SqlClient.SqlException e) { throw e; } } } } /// <summary> /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>SqlDataReader</returns> public static SqlDataReader ExecuteReader(string SQLString, params SqlParameter[] cmdParms) { SqlConnection connection = new SqlConnection(connectionString); SqlCommand cmd = new SqlCommand(); try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); cmd.Parameters.Clear(); return myReader; } catch (System.Data.SqlClient.SqlException e) { throw e; } // finally // { // cmd.Dispose(); // connection.Close(); // } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString, params SqlParameter[] cmdParms) { using (SqlConnection connection = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(); PrepareCommand(cmd, connection, null, SQLString, cmdParms); using (SqlDataAdapter da = new SqlDataAdapter(cmd)) { DataSet ds = new DataSet(); try { da.Fill(ds, "ds"); cmd.Parameters.Clear(); } catch (System.Data.SqlClient.SqlException ex) { throw new Exception(ex.Message); } return ds; } } } private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, string cmdText, SqlParameter[] cmdParms) { if (conn.State != ConnectionState.Open) conn.Open(); cmd.Connection = conn; cmd.CommandText = cmdText; if (trans != null) cmd.Transaction = trans; cmd.CommandType = CommandType.Text;//cmdType; if (cmdParms != null) { foreach (SqlParameter parameter in cmdParms) { if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) && (parameter.Value == null)) { parameter.Value = DBNull.Value; } cmd.Parameters.Add(parameter); } } } #endregion #region 存储过程操作 /// <summary> /// 执行存储过程，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>SqlDataReader</returns> public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters) { SqlConnection connection = new SqlConnection(connectionString); SqlDataReader returnReader; connection.Open(); SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters); command.CommandType = CommandType.StoredProcedure; returnReader = command.ExecuteReader(CommandBehavior.CloseConnection); return returnReader; } /// <summary> /// 执行存储过程 /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <param name="tableName">DataSet结果中的表名</param> /// <returns>DataSet</returns> public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName) { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet dataSet = new DataSet(); connection.Open(); SqlDataAdapter sqlDA = new SqlDataAdapter(); sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters); sqlDA.Fill(dataSet, tableName); connection.Close(); return dataSet; } } public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName, int Times) { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet dataSet = new DataSet(); connection.Open(); SqlDataAdapter sqlDA = new SqlDataAdapter(); sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters); sqlDA.SelectCommand.CommandTimeout = Times; sqlDA.Fill(dataSet, tableName); connection.Close(); return dataSet; } } /// <summary> /// 构建 SqlCommand 对象(用来返回一个结果集，而不是一个整数值) /// </summary> /// <param name="connection">数据库连接</param> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>SqlCommand</returns> private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters) { SqlCommand command = new SqlCommand(storedProcName, connection); command.CommandType = CommandType.StoredProcedure; foreach (SqlParameter parameter in parameters) { if (parameter != null) { // 检查未分配值的输出参数,将其分配以DBNull.Value. if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) && (parameter.Value == null)) { parameter.Value = DBNull.Value; } command.Parameters.Add(parameter); } } return command; } /// <summary> /// 执行存储过程，返回影响的行数 /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <param name="rowsAffected">影响的行数</param> /// <returns></returns> public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected) { using (SqlConnection connection = new SqlConnection(connectionString)) { int result; connection.Open(); SqlCommand command = BuildIntCommand(connection, storedProcName, parameters); rowsAffected = command.ExecuteNonQuery(); result = (int)command.Parameters["ReturnValue"].Value; //Connection.Close(); return result; } } /// <summary> /// 创建 SqlCommand 对象实例(用来返回一个整数值) /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>SqlCommand 对象实例</returns> private static SqlCommand BuildIntCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters) { SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters); command.Parameters.Add(new SqlParameter("ReturnValue", SqlDbType.Int, 4, ParameterDirection.ReturnValue, false, 0, 0, string.Empty, DataRowVersion.Default, null)); return command; } #endregion }
注意：根据提示引用相关命名空间即可。
上述代码中用到了一个PubConstant类 用来获取连接字符串，全部代码如下：
public class PubConstant { /// <summary> /// 获取连接字符串 /// </summary> public static string ConnectionString { get { string _connectionString = ConfigurationManager.AppSettings["ConnectionString"]; string ConStringEncrypt = ConfigurationManager.AppSettings["ConStringEncrypt"]; if (ConStringEncrypt == "true") { _connectionString = DESEncrypt.Decrypt(_connectionString); } return _connectionString; } } /// <summary> /// 得到web.config里配置项的数据库连接字符串。 /// </summary> /// <param name="configName"></param> /// <returns></returns> public static string GetConnectionString(string configName) { string connectionString = ConfigurationManager.AppSettings[configName]; string ConStringEncrypt = ConfigurationManager.AppSettings["ConStringEncrypt"]; if (ConStringEncrypt == "true") { connectionString = DESEncrypt.Decrypt(connectionString); } return connectionString; } }
PubConstant类中对连接字符串进行了DES加密解密操作，DES加密/解密帮助类全部代码如下：
/// <summary> /// DES加密/解密类。 /// </summary> public class DESEncrypt { public DESEncrypt() { } #region ========加密======== /// <summary> /// 加密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Encrypt(string Text) { return Encrypt(Text, "MATICSOFT"); } /// <summary> /// 加密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Encrypt(string Text,string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray; inputByteArray=Encoding.Default.GetBytes(Text); des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); System.IO.MemoryStream ms=new System.IO.MemoryStream(); CryptoStream cs=new CryptoStream(ms,des.CreateEncryptor(),CryptoStreamMode.Write); cs.Write(inputByteArray,0,inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret=new StringBuilder(); foreach( byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}",b); } return ret.ToString(); } #endregion #region ========解密======== /// <summary> /// 解密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Decrypt(string Text) { return Decrypt(Text, "MATICSOFT"); } /// <summary> /// 解密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Decrypt(string Text,string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); int len; len=Text.Length/2; byte[] inputByteArray = new byte[len]; int x,i; for(x=0;x<len;x++) { i = Convert.ToInt32(Text.Substring(x * 2, 2), 16); inputByteArray[x]=(byte)i; } des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); System.IO.MemoryStream ms=new System.IO.MemoryStream(); CryptoStream cs=new CryptoStream(ms,des.CreateDecryptor(),CryptoStreamMode.Write); cs.Write(inputByteArray,0,inputByteArray.Length); cs.FlushFinalBlock(); return Encoding.Default.GetString(ms.ToArray()); } #endregion }
强烈建议使用ESC加密
全部代码如下：
public class DESCrypto { private static string key = "KABCMS2017"; /// <summary> /// 加密(UTF-8) /// </summary> /// <param name="str">待加密字符串</param> /// <param name="secKey">密钥(长度不能少于8位字符)</param> /// <returns></returns> public static string Encode(string str, string secKey = "") { if (string.IsNullOrEmpty(secKey)) secKey = key; else if (secKey.Length < 8) return ""; DESCryptoServiceProvider provider = new DESCryptoServiceProvider(); provider.Key = Encoding.ASCII.GetBytes(secKey.Substring(0, 8)); provider.IV = Encoding.ASCII.GetBytes(secKey.Substring(0, 8)); byte[] bytes = Encoding.GetEncoding("UTF-8").GetBytes(str); MemoryStream stream = new MemoryStream(); CryptoStream stream2 = new CryptoStream(stream, provider.CreateEncryptor(), CryptoStreamMode.Write); stream2.Write(bytes, 0, bytes.Length); stream2.FlushFinalBlock(); StringBuilder builder = new StringBuilder(); foreach (byte num in stream.ToArray()) { builder.AppendFormat("{0:X2}", num); } stream.Close(); return builder.ToString(); } /// <summary> /// 解密(UTF-8) /// </summary> /// <param name="str">待解密字符串</param> /// <param name="secKey">密钥(长度不能少于8位字符)</param> /// <returns></returns> public static string Decode(string str, string secKey = "") { if (string.IsNullOrEmpty(secKey)) secKey = key; else if (secKey.Length < 8) return ""; DESCryptoServiceProvider provider = new DESCryptoServiceProvider(); provider.Key = Encoding.ASCII.GetBytes(secKey.Substring(0, 8)); provider.IV = Encoding.ASCII.GetBytes(secKey.Substring(0, 8)); byte[] buffer = new byte[str.Length / 2]; for (int i = 0; i < (str.Length / 2); i++) { int num2 = Convert.ToInt32(str.Substring(i * 2, 2), 0x10); buffer[i] = (byte)num2; } MemoryStream stream = new MemoryStream(); CryptoStream stream2 = new CryptoStream(stream, provider.CreateDecryptor(), CryptoStreamMode.Write); stream2.Write(buffer, 0, buffer.Length); stream2.FlushFinalBlock(); stream.Close(); return Encoding.GetEncoding("UTF-8").GetString(stream.ToArray()); } }
然后再配置文件中新建几个字符串链接，分别连接不同的库，代码如下：
<add key="ConnectionString1" value="Server=.;Database=数据库名;Uid=账号;Pwd=密码;allow zero datetime = true" /> -- MySql <add key="ConnectionString" value="Server=.;Database=数据库名;Uid=账号;Pwd=密码;" /> -- SqlServer <add key="ConnectionString11" value="Provider=SQLOLEDB;Server=.;Initial Catalog=数据库名;Uid=账号;Pwd=密码;" /> -- SqlLole
使用
/// <summary> /// 根据账号获取信息 /// </summary> /// <param name="name"></param> /// <returns></returns> public ServiceProvider GetNameByQR(string name) { try { string sql = "select 字段1, 字段2, 字段3 from viw_promotion where name='" + name + "'"; DataSet ds = DbHelperMySQL.Query(sql);//此处调用MysqlDBHelper帮助类 DataTable dt = ds.Tables[0]; ServiceProvider ProviderQR = new ServiceProvider(); foreach (DataRow item in dt.Rows) { if (!string.IsNullOrEmpty(item["字段1"].ToString())) { ProviderQR.PropertName = item["字段1"].ToString(); } if (!string.IsNullOrEmpty(item["字段2"].ToString())) { ProviderQR.PropertyURL = item["字段2"].ToString(); } if (!string.IsNullOrEmpty(item["字段3"].ToString())) { ProviderQR.PropertyQRCode = item["字段3"].ToString(); } } return ProviderQR; //返回实体对象 } catch (Exception) { return null; } }
② DbHelperMySQL帮助类，全部代码如下：
/// <summary> /// 数据访问抽象基础类 /// Copyright (C) Maticsoft /// </summary> public abstract class DbHelperMySQL { //数据库连接字符串(web.config来配置)，可以动态更改connectionString支持多数据库. // public static string connectionString = PubConstant.ConnectionString;Mysql_ConnectionString,ConnectionString1 public static string connectionString = ConfigurationManager.AppSettings["ConnectionString1"]; public DbHelperMySQL() { } #region 公用方法 /// <summary> /// 得到最大值 /// </summary> /// <param name="FieldName"></param> /// <param name="TableName"></param> /// <returns></returns> public static int GetMaxID(string FieldName, string TableName) { string strsql = "select max(" + FieldName + ")+1 from " + TableName; object obj = GetSingle(strsql); if (obj == null) { return 1; } else { return int.Parse(obj.ToString()); } } /// <summary> /// 是否存在 /// </summary> /// <param name="strSql"></param> /// <returns></returns> public static bool Exists(string strSql) { object obj = GetSingle(strSql); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } /// <summary> /// 是否存在（基于MySqlParameter） /// </summary> /// <param name="strSql"></param> /// <param name="cmdParms"></param> /// <returns></returns> public static bool Exists(string strSql, params MySqlParameter[] cmdParms) { object obj = GetSingle(strSql, cmdParms); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } #endregion #region 执行简单SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand(SQLString, connection)) { try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (MySql.Data.MySqlClient.MySqlException e) { connection.Close(); throw e; } } } } public static int ExecuteSqlByTime(string SQLString, int Times) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand(SQLString, connection)) { try { connection.Open(); cmd.CommandTimeout = Times; int rows = cmd.ExecuteNonQuery(); return rows; } catch (MySql.Data.MySqlClient.MySqlException e) { connection.Close(); throw e; } } } } /// <summary> /// 执行MySql和Oracle滴混合事务 /// </summary> /// <param name="list">SQL命令行列表</param> /// <param name="oracleCmdSqlList">Oracle命令行列表</param> /// <returns>执行结果 0-由于SQL造成事务失败 -1 由于Oracle造成事务失败 1-整体事务执行成功</returns> public static int ExecuteSqlTran(List<CommandInfo> list, List<CommandInfo> oracleCmdSqlList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); MySqlCommand cmd = new MySqlCommand(); cmd.Connection = conn; MySqlTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { foreach (CommandInfo myDE in list) { string cmdText = myDE.CommandText; MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters; PrepareCommand(cmd, conn, tx, cmdText, cmdParms); if (myDE.EffentNextType == EffentNextType.SolicitationEvent) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { tx.Rollback(); throw new Exception("违背要求"+myDE.CommandText+"必须符合select count(..的格式"); //return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (isHave) { //引发事件 myDE.OnSolicitationEvent(); } } if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "必须符合select count(..的格式"); //return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须大于0"); //return 0; } if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须等于0"); //return 0; } continue; } int val = cmd.ExecuteNonQuery(); if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0) { tx.Rollback(); throw new Exception("SQL:违背要求" + myDE.CommandText + "必须有影响行"); //return 0; } cmd.Parameters.Clear(); } string oraConnectionString = PubConstant.GetConnectionString("ConnectionStringPPC"); bool res = OracleHelper.ExecuteSqlTran(oraConnectionString, oracleCmdSqlList); if (!res) { tx.Rollback(); throw new Exception("执行失败"); // return -1; } tx.Commit(); return 1; } catch (MySql.Data.MySqlClient.MySqlException e) { tx.Rollback(); throw e; } catch (Exception e) { tx.Rollback(); throw e; } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">多条SQL语句</param> public static int ExecuteSqlTran(List<String> SQLStringList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); MySqlCommand cmd = new MySqlCommand(); cmd.Connection = conn; MySqlTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { int count = 0; for (int n = 0; n < SQLStringList.Count; n++) { string strsql = SQLStringList[n]; if (strsql.Trim().Length > 1) { cmd.CommandText = strsql; count += cmd.ExecuteNonQuery(); } } tx.Commit(); return count; } catch { tx.Rollback(); return 0; } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, string content) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { MySqlCommand cmd = new MySqlCommand(SQLString, connection); MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@content", SqlDbType.NText); myParameter.Value = content; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static object ExecuteSqlGet(string SQLString, string content) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { MySqlCommand cmd = new MySqlCommand(SQLString, connection); MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@content", SqlDbType.NText); myParameter.Value = content; cmd.Parameters.Add(myParameter); try { connection.Open(); object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例) /// </summary> /// <param name="strSQL">SQL语句</param> /// <param name="fs">图像字节,数据库的字段类型为image的情况</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlInsertImg(string strSQL, byte[] fs) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { MySqlCommand cmd = new MySqlCommand(strSQL, connection); MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@fs", SqlDbType.Image); myParameter.Value = fs; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand(SQLString, connection)) { try { connection.Open(); object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (MySql.Data.MySqlClient.MySqlException e) { connection.Close(); throw e; } } } } public static object GetSingle(string SQLString, int Times) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand(SQLString, connection)) { try { connection.Open(); cmd.CommandTimeout = Times; object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (MySql.Data.MySqlClient.MySqlException e) { connection.Close(); throw e; } } } } /// <summary> /// 执行查询语句，返回MySqlDataReader ( 注意：调用该方法后，一定要对MySqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>MySqlDataReader</returns> public static MySqlDataReader ExecuteReader(string strSQL) { MySqlConnection connection = new MySqlConnection(connectionString); MySqlCommand cmd = new MySqlCommand(strSQL, connection); try { connection.Open(); MySqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); return myReader; } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection); command.Fill(ds, "ds"); } catch (MySql.Data.MySqlClient.MySqlException ex) { throw new Exception(ex.Message); } return ds; } } public static DataSet Query(string SQLString, int Times) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection); command.SelectCommand.CommandTimeout = Times; command.Fill(ds, "ds"); } catch (MySql.Data.MySqlClient.MySqlException ex) { throw new Exception(ex.Message); } return ds; } } #endregion #region 执行带参数的SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, params MySqlParameter[] cmdParms) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); int rows = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return rows; } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的MySqlParameter[]）</param> public static void ExecuteSqlTran(Hashtable SQLStringList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); using (MySqlTransaction trans = conn.BeginTransaction()) { MySqlCommand cmd = new MySqlCommand(); try { //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText = myDE.Key.ToString(); MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Value; PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的MySqlParameter[]）</param> public static int ExecuteSqlTran(System.Collections.Generic.List<CommandInfo> cmdList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); using (MySqlTransaction trans = conn.BeginTransaction()) { MySqlCommand cmd = new MySqlCommand(); try { int count = 0; //循环 foreach (CommandInfo myDE in cmdList) { string cmdText = myDE.CommandText; MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters; PrepareCommand(cmd, conn, trans, cmdText, cmdParms); if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine) { if (myDE.CommandText.ToLower().IndexOf("count(") == -1) { trans.Rollback(); return 0; } object obj = cmd.ExecuteScalar(); bool isHave = false; if (obj == null && obj == DBNull.Value) { isHave = false; } isHave = Convert.ToInt32(obj) > 0; if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave) { trans.Rollback(); return 0; } if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave) { trans.Rollback(); return 0; } continue; } int val = cmd.ExecuteNonQuery(); count += val; if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0) { trans.Rollback(); return 0; } cmd.Parameters.Clear(); } trans.Commit(); return count; } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的MySqlParameter[]）</param> public static void ExecuteSqlTranWithIndentity(System.Collections.Generic.List<CommandInfo> SQLStringList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); using (MySqlTransaction trans = conn.BeginTransaction()) { MySqlCommand cmd = new MySqlCommand(); try { int indentity = 0; //循环 foreach (CommandInfo myDE in SQLStringList) { string cmdText = myDE.CommandText; MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters; foreach (MySqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.InputOutput) { q.Value = indentity; } } PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); foreach (MySqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.Output) { indentity = Convert.ToInt32(q.Value); } } cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的MySqlParameter[]）</param> public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList) { using (MySqlConnection conn = new MySqlConnection(connectionString)) { conn.Open(); using (MySqlTransaction trans = conn.BeginTransaction()) { MySqlCommand cmd = new MySqlCommand(); try { int indentity = 0; //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText = myDE.Key.ToString(); MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Value; foreach (MySqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.InputOutput) { q.Value = indentity; } } PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); foreach (MySqlParameter q in cmdParms) { if (q.Direction == ParameterDirection.Output) { indentity = Convert.ToInt32(q.Value); } } cmd.Parameters.Clear(); } trans.Commit(); } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString, params MySqlParameter[] cmdParms) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { using (MySqlCommand cmd = new MySqlCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); object obj = cmd.ExecuteScalar(); cmd.Parameters.Clear(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } } } } /// <summary> /// 执行查询语句，返回MySqlDataReader ( 注意：调用该方法后，一定要对MySqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>MySqlDataReader</returns> public static MySqlDataReader ExecuteReader(string SQLString, params MySqlParameter[] cmdParms) { MySqlConnection connection = new MySqlConnection(connectionString); MySqlCommand cmd = new MySqlCommand(); try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); MySqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); cmd.Parameters.Clear(); return myReader; } catch (MySql.Data.MySqlClient.MySqlException e) { throw e; } // finally // { // cmd.Dispose(); // connection.Close(); // } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString, params MySqlParameter[] cmdParms) { using (MySqlConnection connection = new MySqlConnection(connectionString)) { MySqlCommand cmd = new MySqlCommand(); PrepareCommand(cmd, connection, null, SQLString, cmdParms); using (MySqlDataAdapter da = new MySqlDataAdapter(cmd)) { DataSet ds = new DataSet(); try { da.Fill(ds, "ds"); cmd.Parameters.Clear(); } catch (MySql.Data.MySqlClient.MySqlException ex) { throw new Exception(ex.Message); } return ds; } } } private static void PrepareCommand(MySqlCommand cmd, MySqlConnection conn, MySqlTransaction trans, string cmdText, MySqlParameter[] cmdParms) { if (conn.State != ConnectionState.Open) conn.Open(); cmd.Connection = conn; cmd.CommandText = cmdText; if (trans != null) cmd.Transaction = trans; cmd.CommandType = CommandType.Text;//cmdType; if (cmdParms != null) { foreach (MySqlParameter parameter in cmdParms) { if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) && (parameter.Value == null)) { parameter.Value = DBNull.Value; } cmd.Parameters.Add(parameter); } } } #endregion }
注意，Mysql需要引入mysql.dll 点我下载
③ SQLite帮助类，全部代码如下：
/// <summary> /// Copyright (C) 2011 Maticsoft /// 数据访问基础类(基于SQLite) /// 可以用户可以修改满足自己项目的需要。 /// </summary> public abstract class DbHelperSQLite { //数据库连接字符串(web.config来配置)，可以动态更改connectionString支持多数据库. public static string connectionString = PubConstant.ConnectionString; public DbHelperSQLite() { } #region 公用方法 public static int GetMaxID(string FieldName, string TableName) { string strsql = "select max(" + FieldName + ")+1 from " + TableName; object obj = GetSingle(strsql); if (obj == null) { return 1; } else { return int.Parse(obj.ToString()); } } public static bool Exists(string strSql) { object obj = GetSingle(strSql); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } public static bool Exists(string strSql, params SQLiteParameter[] cmdParms) { object obj = GetSingle(strSql, cmdParms); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } #endregion #region 执行简单SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { using (SQLiteCommand cmd = new SQLiteCommand(SQLString, connection)) { try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SQLite.SQLiteException E) { connection.Close(); throw new Exception(E.Message); } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">多条SQL语句</param> public static void ExecuteSqlTran(ArrayList SQLStringList) { using (SQLiteConnection conn = new SQLiteConnection(connectionString)) { conn.Open(); SQLiteCommand cmd = new SQLiteCommand(); cmd.Connection = conn; SQLiteTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { for (int n = 0; n < SQLStringList.Count; n++) { string strsql = SQLStringList[n].ToString(); if (strsql.Trim().Length > 1) { cmd.CommandText = strsql; cmd.ExecuteNonQuery(); } } tx.Commit(); } catch (System.Data.SQLite.SQLiteException E) { tx.Rollback(); throw new Exception(E.Message); } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, string content) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { SQLiteCommand cmd = new SQLiteCommand(SQLString, connection); SQLiteParameter myParameter = new SQLiteParameter("@content", DbType.String); myParameter.Value = content; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SQLite.SQLiteException E) { throw new Exception(E.Message); } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例) /// </summary> /// <param name="strSQL">SQL语句</param> /// <param name="fs">图像字节,数据库的字段类型为image的情况</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlInsertImg(string strSQL, byte[] fs) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { SQLiteCommand cmd = new SQLiteCommand(strSQL, connection); SQLiteParameter myParameter = new SQLiteParameter("@fs", DbType.Binary); myParameter.Value = fs; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows = cmd.ExecuteNonQuery(); return rows; } catch (System.Data.SQLite.SQLiteException E) { throw new Exception(E.Message); } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { using (SQLiteCommand cmd = new SQLiteCommand(SQLString, connection)) { try { connection.Open(); object obj = cmd.ExecuteScalar(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SQLite.SQLiteException e) { connection.Close(); throw new Exception(e.Message); } } } } /// <summary> /// 执行查询语句，返回SQLiteDataReader /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>SQLiteDataReader</returns> public static SQLiteDataReader ExecuteReader(string strSQL) { SQLiteConnection connection = new SQLiteConnection(connectionString); SQLiteCommand cmd = new SQLiteCommand(strSQL, connection); try { connection.Open(); SQLiteDataReader myReader = cmd.ExecuteReader(); return myReader; } catch (System.Data.SQLite.SQLiteException e) { throw new Exception(e.Message); } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); SQLiteDataAdapter command = new SQLiteDataAdapter(SQLString, connection); command.Fill(ds, "ds"); } catch (System.Data.SQLite.SQLiteException ex) { throw new Exception(ex.Message); } return ds; } } #endregion #region 执行带参数的SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, params SQLiteParameter[] cmdParms) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { using (SQLiteCommand cmd = new SQLiteCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); int rows = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return rows; } catch (System.Data.SQLite.SQLiteException E) { throw new Exception(E.Message); } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SQLiteParameter[]）</param> public static void ExecuteSqlTran(Hashtable SQLStringList) { using (SQLiteConnection conn = new SQLiteConnection(connectionString)) { conn.Open(); using (SQLiteTransaction trans = conn.BeginTransaction()) { SQLiteCommand cmd = new SQLiteCommand(); try { //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText = myDE.Key.ToString(); SQLiteParameter[] cmdParms = (SQLiteParameter[])myDE.Value; PrepareCommand(cmd, conn, trans, cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); trans.Commit(); } } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString, params SQLiteParameter[] cmdParms) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { using (SQLiteCommand cmd = new SQLiteCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); object obj = cmd.ExecuteScalar(); cmd.Parameters.Clear(); if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { return null; } else { return obj; } } catch (System.Data.SQLite.SQLiteException e) { throw new Exception(e.Message); } } } } /// <summary> /// 执行查询语句，返回SQLiteDataReader /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>SQLiteDataReader</returns> public static SQLiteDataReader ExecuteReader(string SQLString, params SQLiteParameter[] cmdParms) { SQLiteConnection connection = new SQLiteConnection(connectionString); SQLiteCommand cmd = new SQLiteCommand(); try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); SQLiteDataReader myReader = cmd.ExecuteReader(); cmd.Parameters.Clear(); return myReader; } catch (System.Data.SQLite.SQLiteException e) { throw new Exception(e.Message); } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString, params SQLiteParameter[] cmdParms) { using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { SQLiteCommand cmd = new SQLiteCommand(); PrepareCommand(cmd, connection, null, SQLString, cmdParms); using (SQLiteDataAdapter da = new SQLiteDataAdapter(cmd)) { DataSet ds = new DataSet(); try { da.Fill(ds, "ds"); cmd.Parameters.Clear(); } catch (System.Data.SQLite.SQLiteException ex) { throw new Exception(ex.Message); } return ds; } } } private static void PrepareCommand(SQLiteCommand cmd, SQLiteConnection conn, SQLiteTransaction trans, string cmdText, SQLiteParameter[] cmdParms) { if (conn.State != ConnectionState.Open) conn.Open(); cmd.Connection = conn; cmd.CommandText = cmdText; if (trans != null) cmd.Transaction = trans; cmd.CommandType = CommandType.Text;//cmdType; if (cmdParms != null) { foreach (SQLiteParameter parm in cmdParms) cmd.Parameters.Add(parm); } } #endregion }
④Oracle帮助类，全部代码如下：
/// <summary> /// Copyright (C) Maticsoft /// 数据访问基础类(基于Oracle) /// 可以用户可以修改满足自己项目的需要。 /// </summary> public abstract class DbHelperOra { //数据库连接字符串(web.config来配置)，可以动态更改connectionString支持多数据库. public static string connectionString = PubConstant.ConnectionString; public DbHelperOra() { } #region 公用方法 public static int GetMaxID(string FieldName, string TableName) { string strsql = "select max(" + FieldName + ")+1 from " + TableName; object obj = GetSingle(strsql); if (obj == null) { return 1; } else { return int.Parse(obj.ToString()); } } public static bool Exists(string strSql) { object obj = GetSingle(strSql); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } public static bool Exists(string strSql, params OracleParameter[] cmdParms) { object obj = GetSingle(strSql, cmdParms); int cmdresult; if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))) { cmdresult = 0; } else { cmdresult = int.Parse(obj.ToString()); } if (cmdresult == 0) { return false; } else { return true; } } #endregion #region 执行简单SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString) { using (OracleConnection connection = new OracleConnection(connectionString)) { using (OracleCommand cmd = new OracleCommand(SQLString,connection)) { try { connection.Open(); int rows=cmd.ExecuteNonQuery(); return rows; } catch(System.Data.OracleClient.OracleException E) { connection.Close(); throw new Exception(E.Message); } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">多条SQL语句</param> public static void ExecuteSqlTran(ArrayList SQLStringList) { using (OracleConnection conn = new OracleConnection(connectionString)) { conn.Open(); OracleCommand cmd = new OracleCommand(); cmd.Connection=conn; OracleTransaction tx=conn.BeginTransaction(); cmd.Transaction=tx; try { for(int n=0;n<SQLStringList.Count;n++) { string strsql=SQLStringList[n].ToString(); if (strsql.Trim().Length>1) { cmd.CommandText=strsql; cmd.ExecuteNonQuery(); } } tx.Commit(); } catch(System.Data.OracleClient.OracleException E) { tx.Rollback(); throw new Exception(E.Message); } } } /// <summary> /// 执行带一个存储过程参数的的SQL语句。 /// </summary> /// <param name="SQLString">SQL语句</param> /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString,string content) { using (OracleConnection connection = new OracleConnection(connectionString)) { OracleCommand cmd = new OracleCommand(SQLString,connection); System.Data.OracleClient.OracleParameter myParameter = new System.Data.OracleClient.OracleParameter("@content", OracleType.NVarChar); myParameter.Value = content ; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows=cmd.ExecuteNonQuery(); return rows; } catch(System.Data.OracleClient.OracleException E) { throw new Exception(E.Message); } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例) /// </summary> /// <param name="strSQL">SQL语句</param> /// <param name="fs">图像字节,数据库的字段类型为image的情况</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlInsertImg(string strSQL,byte[] fs) { using (OracleConnection connection = new OracleConnection(connectionString)) { OracleCommand cmd = new OracleCommand(strSQL,connection); System.Data.OracleClient.OracleParameter myParameter = new System.Data.OracleClient.OracleParameter("@fs", OracleType.LongRaw); myParameter.Value = fs ; cmd.Parameters.Add(myParameter); try { connection.Open(); int rows=cmd.ExecuteNonQuery(); return rows; } catch(System.Data.OracleClient.OracleException E) { throw new Exception(E.Message); } finally { cmd.Dispose(); connection.Close(); } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString) { using (OracleConnection connection = new OracleConnection(connectionString)) { using(OracleCommand cmd = new OracleCommand(SQLString,connection)) { try { connection.Open(); object obj = cmd.ExecuteScalar(); if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value))) { return null; } else { return obj; } } catch(System.Data.OracleClient.OracleException e) { connection.Close(); throw new Exception(e.Message); } } } } /// <summary> /// 执行查询语句，返回OracleDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>OracleDataReader</returns> public static OracleDataReader ExecuteReader(string strSQL) { OracleConnection connection = new OracleConnection(connectionString); OracleCommand cmd = new OracleCommand(strSQL,connection); try { connection.Open(); OracleDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); return myReader; } catch(System.Data.OracleClient.OracleException e) { throw new Exception(e.Message); } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString) { using (OracleConnection connection = new OracleConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); OracleDataAdapter command = new OracleDataAdapter(SQLString,connection); command.Fill(ds,"ds"); } catch(System.Data.OracleClient.OracleException ex) { throw new Exception(ex.Message); } return ds; } } #endregion #region 执行带参数的SQL语句 /// <summary> /// 执行SQL语句，返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString,params OracleParameter[] cmdParms) { using (OracleConnection connection = new OracleConnection(connectionString)) { using (OracleCommand cmd = new OracleCommand()) { try { PrepareCommand(cmd, connection, null,SQLString, cmdParms); int rows=cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return rows; } catch(System.Data.OracleClient.OracleException E) { throw new Exception(E.Message); } } } } /// <summary> /// 执行多条SQL语句，实现数据库事务。 /// </summary> /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的OracleParameter[]）</param> public static void ExecuteSqlTran(Hashtable SQLStringList) { using (OracleConnection conn = new OracleConnection(connectionString)) { conn.Open(); using (OracleTransaction trans = conn.BeginTransaction()) { OracleCommand cmd = new OracleCommand(); try { //循环 foreach (DictionaryEntry myDE in SQLStringList) { string cmdText=myDE.Key.ToString(); OracleParameter[] cmdParms=(OracleParameter[])myDE.Value; PrepareCommand(cmd,conn,trans,cmdText, cmdParms); int val = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); trans.Commit(); } } catch { trans.Rollback(); throw; } } } } /// <summary> /// 执行一条计算查询结果语句，返回查询结果（object）。 /// </summary> /// <param name="SQLString">计算查询结果语句</param> /// <returns>查询结果（object）</returns> public static object GetSingle(string SQLString,params OracleParameter[] cmdParms) { using (OracleConnection connection = new OracleConnection(connectionString)) { using (OracleCommand cmd = new OracleCommand()) { try { PrepareCommand(cmd, connection, null,SQLString, cmdParms); object obj = cmd.ExecuteScalar(); cmd.Parameters.Clear(); if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value))) { return null; } else { return obj; } } catch(System.Data.OracleClient.OracleException e) { throw new Exception(e.Message); } } } } /// <summary> /// 执行查询语句，返回OracleDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="strSQL">查询语句</param> /// <returns>OracleDataReader</returns> public static OracleDataReader ExecuteReader(string SQLString,params OracleParameter[] cmdParms) { OracleConnection connection = new OracleConnection(connectionString); OracleCommand cmd = new OracleCommand(); try { PrepareCommand(cmd, connection, null,SQLString, cmdParms); OracleDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); cmd.Parameters.Clear(); return myReader; } catch(System.Data.OracleClient.OracleException e) { throw new Exception(e.Message); } } /// <summary> /// 执行查询语句，返回DataSet /// </summary> /// <param name="SQLString">查询语句</param> /// <returns>DataSet</returns> public static DataSet Query(string SQLString,params OracleParameter[] cmdParms) { using (OracleConnection connection = new OracleConnection(connectionString)) { OracleCommand cmd = new OracleCommand(); PrepareCommand(cmd, connection, null,SQLString, cmdParms); using( OracleDataAdapter da = new OracleDataAdapter(cmd) ) { DataSet ds = new DataSet(); try { da.Fill(ds,"ds"); cmd.Parameters.Clear(); } catch(System.Data.OracleClient.OracleException ex) { throw new Exception(ex.Message); } return ds; } } } private static void PrepareCommand(OracleCommand cmd,OracleConnection conn,OracleTransaction trans, string cmdText, OracleParameter[] cmdParms) { if (conn.State != ConnectionState.Open) conn.Open(); cmd.Connection = conn; cmd.CommandText = cmdText; if (trans != null) cmd.Transaction = trans; cmd.CommandType = CommandType.Text;//cmdType; if (cmdParms != null) { foreach (OracleParameter parm in cmdParms) cmd.Parameters.Add(parm); } } #endregion #region 存储过程操作 /// <summary> /// 执行存储过程 返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close ) /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>OracleDataReader</returns> public static OracleDataReader RunProcedure(string storedProcName, IDataParameter[] parameters ) { OracleConnection connection = new OracleConnection(connectionString); OracleDataReader returnReader; connection.Open(); OracleCommand command = BuildQueryCommand( connection,storedProcName, parameters ); command.CommandType = CommandType.StoredProcedure; returnReader = command.ExecuteReader(CommandBehavior.CloseConnection); return returnReader; } /// <summary> /// 执行存储过程 /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <param name="tableName">DataSet结果中的表名</param> /// <returns>DataSet</returns> public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName ) { using (OracleConnection connection = new OracleConnection(connectionString)) { DataSet dataSet = new DataSet(); connection.Open(); OracleDataAdapter sqlDA = new OracleDataAdapter(); sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters ); sqlDA.Fill( dataSet, tableName ); connection.Close(); return dataSet; } } /// <summary> /// 构建 OracleCommand 对象(用来返回一个结果集，而不是一个整数值) /// </summary> /// <param name="connection">数据库连接</param> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>OracleCommand</returns> private static OracleCommand BuildQueryCommand(OracleConnection connection,string storedProcName, IDataParameter[] parameters) { OracleCommand command = new OracleCommand( storedProcName, connection ); command.CommandType = CommandType.StoredProcedure; foreach (OracleParameter parameter in parameters) { command.Parameters.Add( parameter ); } return command; } /// <summary> /// 执行存储过程，返回影响的行数 /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <param name="rowsAffected">影响的行数</param> /// <returns></returns> public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected ) { using (OracleConnection connection = new OracleConnection(connectionString)) { int result; connection.Open(); OracleCommand command = BuildIntCommand(connection,storedProcName, parameters ); rowsAffected = command.ExecuteNonQuery(); result = (int)command.Parameters["ReturnValue"].Value; //Connection.Close(); return result; } } /// <summary> /// 创建 OracleCommand 对象实例(用来返回一个整数值) /// </summary> /// <param name="storedProcName">存储过程名</param> /// <param name="parameters">存储过程参数</param> /// <returns>OracleCommand 对象实例</returns> private static OracleCommand BuildIntCommand(OracleConnection connection,string storedProcName, IDataParameter[] parameters) { OracleCommand command = BuildQueryCommand(connection,storedProcName, parameters ); command.Parameters.Add( new OracleParameter ( "ReturnValue", OracleType.Int32, 4, ParameterDirection.ReturnValue, false,0,0,string.Empty,DataRowVersion.Default,null )); return command; } #endregion }
⑤缓存帮助类，全部代码如下：
using System.Web.Caching; public class WebDataCache { /// <summary> /// 获取当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <returns></returns> public static object GetCache(string CacheKey) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; return objCache[CacheKey]; } /// <summary> /// 删除当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <returns></returns> public static object RemoveCache(string CacheKey) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; return objCache.Remove(CacheKey); } /// <summary> /// 设置当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <param name="objObject"></param> public static void SetCache(string CacheKey, object objObject) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; objCache.Insert(CacheKey, objObject); } /// <summary> /// 设置当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <param name="objObject"></param> public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration); } /// <summary> /// 设置当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <param name="objObject"></param> /// <param name="absoluteExpiration">设置绝对过期时间</param> public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; objCache.Insert(CacheKey, objObject, null, absoluteExpiration, Cache.NoSlidingExpiration); } /// <summary> /// 设置当前应用程序指定CacheKey的Cache值 /// </summary> /// <param name="CacheKey"></param> /// <param name="objObject"></param> /// <param name="slidingExpiration">设置滑动过期时间</param> public static void SetCache(string CacheKey, object objObject, TimeSpan slidingExpiration) { System.Web.Caching.Cache objCache = HttpRuntime.Cache; objCache.Insert(CacheKey, objObject, null, Cache.NoAbsoluteExpiration, slidingExpiration); } }
使用方式：
例如，登陆的时候可以先获取是否有该缓存：
if (WebDataCache.GetCache(userName + "固定标识符") == null) { 实体对象= _roles.UserRolesOperS(userName);//根据用户名查询出用户权限 赋值到实体中 WebDataCache.SetCache(userName + "固定标识符", UserRolesOper, DateTime.Now.AddSeconds(double.Parse(ConfigurationManager.AppSettings["Cache"].ToString())));//设置缓存过期时间，在配置文件中配置
}
清空缓存操作：
WebDataCache.RemoveCache(User_Name + "_MenuAction");//清空缓存
缓存为空或过期需重新查出
使用缓存：
object obj = WebDataCache.GetCache(userName + "固定标识符");
var userRoleOper = (List<实体对象>)obj; //
⑥字符串加密组件
/// <summary> /// 字符串加密组件 /// </summary> public class Encrypt { #region "定义加密字串变量" private SymmetricAlgorithm mCSP; //声明对称算法变量 private const string CIV = "Mi9l/+7Zujhy12se6Yjy111A"; //初始化向量 private const string CKEY = "jkHuIy9D/9i="; //密钥（常量） #endregion /// <summary> /// 实例化 /// </summary> public Encrypt() { mCSP = new DESCryptoServiceProvider(); //定义访问数据加密标准 (DES) 算法的加密服务提供程序 (CSP) 版本的包装对象,此类是SymmetricAlgorithm的派生类 } /// <summary> /// 加密字符串 /// </summary> /// <param name="Value">需加密的字符串</param> /// <returns></returns> public string EncryptString(string Value) { ICryptoTransform ct; //定义基本的加密转换运算 MemoryStream ms; //定义内存流 CryptoStream cs; //定义将内存流链接到加密转换的流 byte[] byt; //CreateEncryptor创建(对称数据)加密对象 ct = mCSP.CreateEncryptor(Convert.FromBase64String(CKEY), Convert.FromBase64String(CIV)); //用指定的密钥和初始化向量创建对称数据加密标准 byt = Encoding.UTF8.GetBytes(Value); //将Value字符转换为UTF-8编码的字节序列 ms = new MemoryStream(); //创建内存流 cs = new CryptoStream(ms, ct, CryptoStreamMode.Write); //将内存流链接到加密转换的流 cs.Write(byt, 0, byt.Length); //写入内存流 cs.FlushFinalBlock(); //将缓冲区中的数据写入内存流，并清除缓冲区 cs.Close(); //释放内存流 return Convert.ToBase64String(ms.ToArray()); //将内存流转写入字节数组并转换为string字符 } /// <summary> /// 解密字符串 /// </summary> /// <param name="Value">要解密的字符串</param> /// <returns>string</returns> public string DecryptString(string Value) { ICryptoTransform ct; //定义基本的加密转换运算 MemoryStream ms; //定义内存流 CryptoStream cs; //定义将数据流链接到加密转换的流 byte[] byt; ct = mCSP.CreateDecryptor(Convert.FromBase64String(CKEY), Convert.FromBase64String(CIV)); //用指定的密钥和初始化向量创建对称数据解密标准 byt = Convert.FromBase64String(Value); //将Value(Base 64)字符转换成字节数组 ms = new MemoryStream(); cs = new CryptoStream(ms, ct, CryptoStreamMode.Write); cs.Write(byt, 0, byt.Length); cs.FlushFinalBlock(); cs.Close(); return Encoding.UTF8.GetString(ms.ToArray()); //将字节数组中的所有字符解码为一个字符串 } /// <summary> /// 生成随机数 /// </summary> /// <param name="num"></param> /// <returns></returns> public string GetMixPwd(int num)//生成混合随机数 { string a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; StringBuilder sb = new StringBuilder(); for (int i = 0; i < num; i++) { sb.Append(a[new Random(Guid.NewGuid().GetHashCode()).Next(0, a.Length - 1)]); } return sb.ToString(); } }
⑦ 输入汉字获取拼音或首字母大写 新建类 ConvertHzToPy，全部代码如下：
/// <summary> /// Summary description for ConvertHzToPz_Gb2312 /// </summary> public class ConvertHzToPy { public ConvertHzToPy() { // // TODO: Add constructor logic here // } private static int[] pyvalue = new int[]{-20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,-20032,-20026, -20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,-19756,-19751,-19746,-19741,-19739,-19728, -19725,-19715,-19540,-19531,-19525,-19515,-19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263, -19261,-19249,-19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,-19003,-18996, -18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,-18731,-18722,-18710,-18697,-18696,-18526, -18518,-18501,-18490,-18478,-18463,-18448,-18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183, -18181,-18012,-17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,-17733,-17730, -17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,-17468,-17454,-17433,-17427,-17417,-17202, -17185,-16983,-16970,-16942,-16915,-16733,-16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459, -16452,-16448,-16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,-16212,-16205, -16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,-15933,-15920,-15915,-15903,-15889,-15878, -15707,-15701,-15681,-15667,-15661,-15659,-15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416, -15408,-15394,-15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,-15149,-15144, -15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,-14941,-14937,-14933,-14930,-14929,-14928, -14926,-14922,-14921,-14914,-14908,-14902,-14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668, -14663,-14654,-14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,-14170,-14159, -14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,-14109,-14099,-14097,-14094,-14092,-14090, -14087,-14083,-13917,-13914,-13910,-13907,-13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658, -13611,-13601,-13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,-13340,-13329, -13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,-13068,-13063,-13060,-12888,-12875,-12871, -12860,-12858,-12852,-12849,-12838,-12831,-12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346, -12320,-12300,-12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,-11781,-11604, -11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,-11055,-11052,-11045,-11041,-11038,-11024, -11020,-11019,-11018,-11014,-10838,-10832,-10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331, -10329,-10328,-10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254}; private static string[] pystr = new string[]{"a","ai","an","ang","ao","ba","bai","ban","bang","bao","bei","ben","beng","bi","bian","biao", "bie","bin","bing","bo","bu","ca","cai","can","cang","cao","ce","ceng","cha","chai","chan","chang","chao","che","chen", "cheng","chi","chong","chou","chu","chuai","chuan","chuang","chui","chun","chuo","ci","cong","cou","cu","cuan","cui", "cun","cuo","da","dai","dan","dang","dao","de","deng","di","dian","diao","die","ding","diu","dong","dou","du","duan", "dui","dun","duo","e","en","er","fa","fan","fang","fei","fen","feng","fo","fou","fu","ga","gai","gan","gang","gao", "ge","gei","gen","geng","gong","gou","gu","gua","guai","guan","guang","gui","gun","guo","ha","hai","han","hang", "hao","he","hei","hen","heng","hong","hou","hu","hua","huai","huan","huang","hui","hun","huo","ji","jia","jian", "jiang","jiao","jie","jin","jing","jiong","jiu","ju","juan","jue","jun","ka","kai","kan","kang","kao","ke","ken", "keng","kong","kou","ku","kua","kuai","kuan","kuang","kui","kun","kuo","la","lai","lan","lang","lao","le","lei", "leng","li","lia","lian","liang","liao","lie","lin","ling","liu","long","lou","lu","lv","luan","lue","lun","luo", "ma","mai","man","mang","mao","me","mei","men","meng","mi","mian","miao","mie","min","ming","miu","mo","mou","mu", "na","nai","nan","nang","nao","ne","nei","nen","neng","ni","nian","niang","niao","nie","nin","ning","niu","nong", "nu","nv","nuan","nue","nuo","o","ou","pa","pai","pan","pang","pao","pei","pen","peng","pi","pian","piao","pie", "pin","ping","po","pu","qi","qia","qian","qiang","qiao","qie","qin","qing","qiong","qiu","qu","quan","que","qun", "ran","rang","rao","re","ren","reng","ri","rong","rou","ru","ruan","rui","run","ruo","sa","sai","san","sang", "sao","se","sen","seng","sha","shai","shan","shang","shao","she","shen","sheng","shi","shou","shu","shua", "shuai","shuan","shuang","shui","shun","shuo","si","song","sou","su","suan","sui","sun","suo","ta","tai", "tan","tang","tao","te","teng","ti","tian","tiao","tie","ting","tong","tou","tu","tuan","tui","tun","tuo", "wa","wai","wan","wang","wei","wen","weng","wo","wu","xi","xia","xian","xiang","xiao","xie","xin","xing", "xiong","xiu","xu","xuan","xue","xun","ya","yan","yang","yao","ye","yi","yin","ying","yo","yong","you", "yu","yuan","yue","yun","za","zai","zan","zang","zao","ze","zei","zen","zeng","zha","zhai","zhan","zhang", "zhao","zhe","zhen","zheng","zhi","zhong","zhou","zhu","zhua","zhuai","zhuan","zhuang","zhui","zhun","zhuo", "zi","zong","zou","zu","zuan","zui","zun","zuo"}; /// <summary> /// 获取拼音 /// </summary> /// <param name="str">汉字</param> /// <returns></returns> public static string Convert(string str) { byte[] array = new byte[2]; string returnstr = ""; int chrasc = 0; int i1 = 0; int i2 = 0; char[] nowchar = str.ToCharArray(); for (int j = 0; j < nowchar.Length; j++) { byte[] btchk = System.Text.Encoding.Default.GetBytes(nowchar[j].ToString()); if (btchk.Length == 1) { returnstr += nowchar[j].ToString(); continue; } array = btchk; //array = System.Text.Encoding.Default.GetBytes(nowchar[j].ToString()); i1 = (short)(array[0]); i2 = (short)(array[1]); chrasc = i1 * 256 + i2 - 65536; if (chrasc > 0 && chrasc < 160) { returnstr += nowchar[j]; } else { for (int i = (pyvalue.Length - 1); i >= 0; i--) { if (pyvalue[i] <= chrasc) { returnstr += pystr[i]; break; } } } } return returnstr; } /// <summary> /// 获取拼音首字母 /// </summary> /// <param name="str">汉字</param> /// <returns></returns> public static string GetShortPY(string str) { string tempStr = ""; foreach (char c in str) { if ((int)c >= 33 && (int)c <= 126) { tempStr += c.ToString(); //字母和符号原样保留 } else { if ((int)c != 32)//如果不是空格，那么转换 { tempStr += GetPYChar(c.ToString()); //累加拼音声母 } else//如果是空格那么在字符串中间+上一个空字符 { tempStr += " "; } } } return tempStr; } private static string GetPYChar(string c) { byte[] array = new byte[2]; array = System.Text.Encoding.Default.GetBytes(c); int i = (short)(array[0] - ' ') * 256 + ((short)(array[1] - ' ')); if (i < 0xB0A1) return ""; if (i < 0xB0C5) return "a"; if (i < 0xB2C1) return "b"; if (i < 0xB4EE) return "c"; if (i < 0xB6EA) return "d"; if (i < 0xB7A2) return "e"; if (i < 0xB8C1) return "f"; if (i < 0xB9FE) return "g"; if (i < 0xBBF7) return "h"; if (i < 0xBFA6) return "j"; if (i < 0xC0AC) return "k"; if (i < 0xC2E8) return "l"; if (i < 0xC4C3) return "m"; if (i < 0xC5B6) return "n"; if (i < 0xC5BE) return "o"; if (i < 0xC6DA) return "p"; if (i < 0xC8BB) return "q"; if (i < 0xC8F6) return "r"; if (i < 0xCBFA) return "s"; if (i < 0xCDDA) return "t"; if (i < 0xCEF4) return "w"; if (i < 0xD1B9) return "x"; if (i < 0xD4D1) return "y"; if (i < 0xD7FA) return "z"; return ""; } }
⑧INI文件读写类 ，新建类INIFile ，全部代码如下：
/// <summary> /// INI文件读写类。 /// Copyright (C) Maticsoft /// </summary> public class INIFile { public string path; public INIFile(string INIPath) { path = INIPath; } [DllImport("kernel32")] private static extern long WritePrivateProfileString(string section,string key,string val,string filePath); [DllImport("kernel32")] private static extern int GetPrivateProfileString(string section,string key,string def, StringBuilder retVal,int size,string filePath); [DllImport("kernel32")] private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath); /// <summary> /// 写INI文件 /// </summary> /// <param name="Section"></param> /// <param name="Key"></param> /// <param name="Value"></param> public void IniWriteValue(string Section,string Key,string Value) { WritePrivateProfileString(Section,Key,Value,this.path); } /// <summary> /// 读取INI文件 /// </summary> /// <param name="Section"></param> /// <param name="Key"></param> /// <returns></returns> public string IniReadValue(string Section,string Key) { StringBuilder temp = new StringBuilder(255); int i = GetPrivateProfileString(Section,Key,"",temp, 255, this.path); return temp.ToString(); } public byte[] IniReadValues(string section, string key) { byte[] temp = new byte[255]; int i = GetPrivateProfileString(section, key, "", temp, 255, this.path); return temp; } /// <summary> /// 删除ini文件下所有段落 /// </summary> public void ClearAllSection() { IniWriteValue(null,null,null); } /// <summary> /// 删除ini文件下personal段落下的所有键 /// </summary> /// <param name="Section"></param> public void ClearSection(string Section) { IniWriteValue(Section,null,null); } }
⑨页面数据效验类，可以新建类 PageValidate，全部代码如下：
/// <summary> /// 页面数据校验类 /// Copyright (C) Maticsoft 2004-2011 /// </summary> public class PageValidate { private static Regex RegPhone = new Regex("^[0-9]+[-]?[0-9]+[-]?[0-9]$"); private static Regex RegNumber = new Regex("^[0-9]+$"); private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$"); private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$"); private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?d+[.]?d+$ private static Regex RegEmail = new Regex("^[\w-]+@[\w-]+\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样 private static Regex RegCHZN = new Regex("[u4e00-u9fa5]"); public PageValidate() { } #region 数字字符串检查 public static bool IsPhone(string inputData) { Match m = RegPhone.Match(inputData); return m.Success; } /// <summary> /// 检查Request查询字符串的键值，是否是数字，最大长度限制 /// </summary> /// <param name="req">Request</param> /// <param name="inputKey">Request的键值</param> /// <param name="maxLen">最大长度</param> /// <returns>返回Request查询字符串</returns> public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen) { string retVal = string.Empty; if(inputKey != null && inputKey != string.Empty) { retVal = req.QueryString[inputKey]; if(null == retVal) retVal = req.Form[inputKey]; if(null != retVal) { retVal = SqlText(retVal, maxLen); if(!IsNumber(retVal)) retVal = string.Empty; } } if(retVal == null) retVal = string.Empty; return retVal; } /// <summary> /// 是否数字字符串 /// </summary> /// <param name="inputData">输入字符串</param> /// <returns></returns> public static bool IsNumber(string inputData) { Match m = RegNumber.Match(inputData); return m.Success; } /// <summary> /// 是否数字字符串 可带正负号 /// </summary> /// <param name="inputData">输入字符串</param> /// <returns></returns> public static bool IsNumberSign(string inputData) { Match m = RegNumberSign.Match(inputData); return m.Success; } /// <summary> /// 是否是浮点数 /// </summary> /// <param name="inputData">输入字符串</param> /// <returns></returns> public static bool IsDecimal(string inputData) { Match m = RegDecimal.Match(inputData); return m.Success; } /// <summary> /// 是否是浮点数 可带正负号 /// </summary> /// <param name="inputData">输入字符串</param> /// <returns></returns> public static bool IsDecimalSign(string inputData) { Match m = RegDecimalSign.Match(inputData); return m.Success; } #endregion #region 中文检测 /// <summary> /// 检测是否有中文字符 /// </summary> /// <param name="inputData"></param> /// <returns></returns> public static bool IsHasCHZN(string inputData) { Match m = RegCHZN.Match(inputData); return m.Success; } #endregion #region 邮件地址 /// <summary> /// 是否是浮点数 可带正负号 /// </summary> /// <param name="inputData">输入字符串</param> /// <returns></returns> public static bool IsEmail(string inputData) { Match m = RegEmail.Match(inputData); return m.Success; } #endregion #region 日期格式判断 /// <summary> /// 日期格式字符串判断 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool IsDateTime(string str) { try { if (!string.IsNullOrEmpty(str)) { DateTime.Parse(str); return true; } else { return false; } } catch { return false; } } #endregion #region 其他 /// <summary> /// 检查字符串最大长度，返回指定长度的串 /// </summary> /// <param name="sqlInput">输入字符串</param> /// <param name="maxLength">最大长度</param> /// <returns></returns> public static string SqlText(string sqlInput, int maxLength) { if(sqlInput != null && sqlInput != string.Empty) { sqlInput = sqlInput.Trim(); if(sqlInput.Length > maxLength)//按最大长度截取字符串 sqlInput = sqlInput.Substring(0, maxLength); } return sqlInput; } /// <summary> /// 字符串编码 /// </summary> /// <param name="inputData"></param> /// <returns></returns> public static string HtmlEncode(string inputData) { return HttpUtility.HtmlEncode(inputData); } /// <summary> /// 设置Label显示Encode的字符串 /// </summary> /// <param name="lbl"></param> /// <param name="txtInput"></param> public static void SetLabel(Label lbl, string txtInput) { lbl.Text = HtmlEncode(txtInput); } public static void SetLabel(Label lbl, object inputObj) { SetLabel(lbl, inputObj.ToString()); } //字符串清理 public static string InputText(string inputString, int maxLength) { StringBuilder retVal = new StringBuilder(); // 检查是否为空 if ((inputString != null) && (inputString != String.Empty)) { inputString = inputString.Trim(); //检查长度 if (inputString.Length > maxLength) inputString = inputString.Substring(0, maxLength); //替换危险字符 for (int i = 0; i < inputString.Length; i++) { switch (inputString[i]) { case '"': retVal.Append("""); break; case '<': retVal.Append("<"); break; case '>': retVal.Append(">"); break; default: retVal.Append(inputString[i]); break; } } retVal.Replace("'", " ");// 替换单引号 } return retVal.ToString(); } /// <summary> /// 转换成 HTML code /// </summary> /// <param name="str">string</param> /// <returns>string</returns> public static string Encode(string str) { str = str.Replace("&","&"); str = str.Replace("'","''"); str = str.Replace(""","""); str = str.Replace(" "," "); str = str.Replace("<","<"); str = str.Replace(">",">"); str = str.Replace(" ","<br>"); return str; } /// <summary> ///解析html成 普通文本 /// </summary> /// <param name="str">string</param> /// <returns>string</returns> public static string Decode(string str) { str = str.Replace("<br>"," "); str = str.Replace(">",">"); str = str.Replace("<","<"); str = str.Replace(" "," "); str = str.Replace(""","""); return str; } public static string SqlTextClear(string sqlText) { if (sqlText == null) { return null; } if (sqlText == "") { return ""; } sqlText = sqlText.Replace(",", "");//去除, sqlText = sqlText.Replace("<", "");//去除< sqlText = sqlText.Replace(">", "");//去除> sqlText = sqlText.Replace("--", "");//去除-- sqlText = sqlText.Replace("'", "");//去除' sqlText = sqlText.Replace(""", "");//去除" sqlText = sqlText.Replace("=", "");//去除= sqlText = sqlText.Replace("%", "");//去除% sqlText = sqlText.Replace(" ", "");//去除空格 return sqlText; } #endregion #region 是否由特定字符组成 public static bool isContainSameChar(string strInput) { string charInput = string.Empty; if (!string.IsNullOrEmpty(strInput)) { charInput = strInput.Substring(0, 1); } return isContainSameChar(strInput, charInput, strInput.Length); } public static bool isContainSameChar(string strInput, string charInput, int lenInput) { if (string.IsNullOrEmpty(charInput)) { return false; } else { Regex RegNumber = new Regex(string.Format("^([{0}])+$", charInput)); //Regex RegNumber = new Regex(string.Format("^([{0}]{{1}})+$", charInput,lenInput)); Match m = RegNumber.Match(strInput); return m.Success; } } #endregion #region 检查输入的参数是不是某些定义好的特殊字符：这个方法目前用于密码输入的安全检查 /// <summary> /// 检查输入的参数是不是某些定义好的特殊字符：这个方法目前用于密码输入的安全检查 /// </summary> public static bool isContainSpecChar(string strInput) { string[] list = new string[] { "123456", "654321" }; bool result = new bool(); for (int i = 0; i < list.Length; i++) { if (strInput == list[i]) { result = true; break; } } return result; } #endregion }
⑩处理枚举类，新建类RenumDropList，全部代码如下：
/// <summary> /// 处理枚举类 /// </summary> public class RenumDropList { /// <summary> /// 讲枚举绑定在DropDownList上 /// </summary> /// <param name="list">类型</param> /// <param name="text">第一项文字</param> /// <param name="TypeEnum">枚举(默认第一项为0)</param> public static void BindDropDownList(DropDownList list,string text,Type TypeEnum) { List<ListItem> TypeList = new List<ListItem>(); // TypeList.Add(new ListItem(text, value)); TypeList.Add(new ListItem { Text = ""+text+"", Value = "0"}); foreach (object type in Enum.GetValues(TypeEnum)) { TypeList.Add(new ListItem(type.ToString(), ((int)type).ToString())); } list.DataSource = TypeList; list.DataTextField = "text"; list.DataValueField = "value"; list.DataBind(); } /// <summary> /// 讲枚举绑定在DropDownList上 /// </summary> /// <param name="list">控件</param> /// <param name="TypeEnum">枚举</param> public static void BindDropDownList(DropDownList list, Type TypeEnum) { List<ListItem> TypeList = new List<ListItem>(); foreach (object type in Enum.GetValues(TypeEnum)) { TypeList.Add(new ListItem(type.ToString(), ((int)type).ToString())); } list.DataSource = TypeList; list.DataTextField = "text"; list.DataValueField = "value"; list.DataBind(); } /// <summary> /// 讲枚举绑定在RadioButtonList上面 /// </summary> /// <param name="list"></param> public static void BindRadioButtonList(RadioButtonList list,Type TypeEnem) { List<ListItem> TypeList = new List<ListItem>(); foreach (object type in Enum.GetValues(TypeEnem)) { string str=type.ToString(); if (str.Contains('X')) { str = str.Replace("X", "/"); } TypeList.Add(new ListItem(str, ((int)type).ToString())); } list.DataSource = TypeList; list.DataTextField = "text"; list.DataValueField = "value"; list.DataBind(); } /// <summary> /// 讲枚举绑定在DropDownList上 /// </summary> /// <param name="list">类型</param> /// <param name="text">第一项文字</param> /// <param name="TypeEnum">枚举(默认第一项为0)</param> public static void BindDropDownList_Replace(DropDownList list, Type TypeEnum) { List<ListItem> TypeList = new List<ListItem>(); // TypeList.Add(new ListItem(text, value)); //TypeList.Add(new ListItem { Text = "" + text + "", Value = "0" }); foreach (object type in Enum.GetValues(TypeEnum)) { string str=type.ToString(); if (str.Contains('N') || str.Contains('D') || str.Contains('G')||str.Contains('M')||str.Contains('Q')) { str=str.Replace("N", "$"); str=str.Replace("D", ","); str=str.Replace("G", " - "); str = str.Replace("M", "."); str = str.Replace("Q", ""); } TypeList.Add(new ListItem(str, ((int)type).ToString())); } list.DataSource = TypeList; list.DataTextField = "text"; list.DataValueField = "value"; list.DataBind(); } /// <summary> /// 选中某一项 /// </summary> /// <param name="radio">类型</param> /// <param name="value">值</param> public static void RadioButtonChecked(RadioButtonList radio,string value) { for (int i = 0; i < radio.Items.Count; i++) { if (radio.Items[i].Value != value) { radio.Items[i].Selected = false; // continue; } else { radio.ClearSelection(); radio.Items[i].Selected = true; } } } /// <summary> /// 选中某一项 /// </summary> /// <param name="radio">类型</param> /// <param name="value">值</param> public static void DropDownListChecked(DropDownList drop, string value) { for (int i = 0; i <drop.Items.Count; i++) { if (drop.Items[i].Value != value) { drop.Items[i].Selected = false; //continue; } else { drop.ClearSelection(); drop.Items[i].Selected = true; } } } /// <summary> /// 选中某一项 /// </summary> /// <param name="radio">类型</param> /// <param name="value">值</param> public static void DropListChecked(DropDownList drop, string text) { // drop.ClearSelection(); for (int i = 0; i < drop.Items.Count; i++) { if (drop.Items[i].Text != text) { drop.Items[i].Selected = false; //continue; } else { drop.ClearSelection(); drop.Items[i].Selected = true; } } } /// <summary> /// 绑定枚举在CheckBoxList上 /// </summary> /// <param name="list"></param> /// <param name="TypeEnum"></param> public static void BindCheckBoxList(CheckBoxList list, Type TypeEnum) { List<ListItem> TypeList = new List<ListItem>(); foreach (object type in Enum.GetValues(TypeEnum)) { TypeList.Add(new ListItem(type.ToString(), ((int)type).ToString())); } list.DataSource = TypeList; list.DataTextField = "text"; list.DataValueField = "value"; list.DataBind(); } }
11 转换人民币大小金额 ，新建类Rmb ，全部代码如下：
/// <summary> /// Rmb 的摘要说明。 /// </summary> public class Rmb { /// <summary> /// 转换人民币大小金额 /// </summary> /// <param name="num">金额</param> /// <returns>返回大写形式</returns> public static string CmycurD(decimal num) { string str1 = "零壹贰叁肆伍陆柒捌玖"; //0-9所对应的汉字 string str2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; //数字位所对应的汉字 string str3 = ""; //从原num值中取出的值 string str4 = ""; //数字的字符串形式 string str5 = ""; //人民币大写金额形式 int i; //循环变量 int j; //num的值乘以100的字符串长度 string ch1 = ""; //数字的汉语读法 string ch2 = ""; //数字位的汉字读法 int nzero = 0; //用来计算连续的零值是几个 int temp; //从原num值中取出的值 num = Math.Round(Math.Abs(num), 2); //将num取绝对值并四舍五入取2位小数 str4 = ((long)(num * 100)).ToString(); //将num乘100并转换成字符串形式 j = str4.Length; //找出最高位 if (j > 15) { return "溢出"; } str2 = str2.Substring(15 - j); //取出对应位数的str2的值。如：200.55,j为5所以str2=佰拾元角分 //循环取出每一位需要转换的值 for (i = 0; i < j; i++) { str3 = str4.Substring(i, 1); //取出需转换的某一位的值 temp = Convert.ToInt32(str3); //转换为数字 if (i != (j - 3) && i != (j - 7) && i != (j - 11) && i != (j - 15)) { //当所取位数不为元、万、亿、万亿上的数字时 if (str3 == "0") { ch1 = ""; ch2 = ""; nzero = nzero + 1; } else { if (str3 != "0" && nzero != 0) { ch1 = "零" + str1.Substring(temp * 1, 1); ch2 = str2.Substring(i, 1); nzero = 0; } else { ch1 = str1.Substring(temp * 1, 1); ch2 = str2.Substring(i, 1); nzero = 0; } } } else { //该位是万亿，亿，万，元位等关键位 if (str3 != "0" && nzero != 0) { ch1 = "零" + str1.Substring(temp * 1, 1); ch2 = str2.Substring(i, 1); nzero = 0; } else { if (str3 != "0" && nzero == 0) { ch1 = str1.Substring(temp * 1, 1); ch2 = str2.Substring(i, 1); nzero = 0; } else { if (str3 == "0" && nzero >= 3) { ch1 = ""; ch2 = ""; nzero = nzero + 1; } else { if (j >= 11) { ch1 = ""; nzero = nzero + 1; } else { ch1 = ""; ch2 = str2.Substring(i, 1); nzero = nzero + 1; } } } } } if (i == (j - 11) || i == (j - 3)) { //如果该位是亿位或元位，则必须写上 ch2 = str2.Substring(i, 1); } str5 = str5 + ch1 + ch2; if (i == j - 1 && str3 == "0") { //最后一位（分）为0时，加上“整” str5 = str5 + '整'; } } if (num == 0) { str5 = "零元整"; } return str5; } /**/ /// <summary> /// 一个重载，将字符串先转换成数字在调用CmycurD(decimal num) /// </summary> /// <param name="num">用户输入的金额，字符串形式未转成decimal</param> /// <returns></returns> public static string CmycurD(string numstr) { try { decimal num = Convert.ToDecimal(numstr); return CmycurD(num); } catch { return "非数字形式！"; } } }
12 时间帮助类 TimeParser，全部代码如下：
public class TimeParser { /// <summary> /// 把秒转换成分钟 /// </summary> /// <returns></returns> public static int SecondToMinute(int Second) { decimal mm = (decimal)((decimal)Second / (decimal)60); return Convert.ToInt32(Math.Ceiling(mm)); } #region 返回某年某月最后一天 /// <summary> /// 返回某年某月最后一天 /// </summary> /// <param name="year">年份</param> /// <param name="month">月份</param> /// <returns>日</returns> public static int GetMonthLastDate(int year, int month) { DateTime lastDay = new DateTime(year, month, new System.Globalization.GregorianCalendar().GetDaysInMonth(year, month)); int Day = lastDay.Day; return Day; } #endregion #region 返回时间差 public static string DateDiff(DateTime DateTime1, DateTime DateTime2) { string dateDiff = null; try { //TimeSpan ts1 = new TimeSpan(DateTime1.Ticks); //TimeSpan ts2 = new TimeSpan(DateTime2.Ticks); //TimeSpan ts = ts1.Subtract(ts2).Duration(); TimeSpan ts = DateTime2 - DateTime1; if (ts.Days >=1) { dateDiff = DateTime1.Month.ToString() + "月" + DateTime1.Day.ToString() + "日"; } else { if (ts.Hours > 1) { dateDiff = ts.Hours.ToString() + "小时前"; } else { dateDiff = ts.Minutes.ToString() + "分钟前"; } } } catch { } return dateDiff; } #endregion }
13 URL的操作类，全部代码如下：
/// <summary> /// URL的操作类 /// </summary> public class UrlOper { static System.Text.Encoding encoding = System.Text.Encoding.UTF8; #region URL的64位编码 public static string Base64Encrypt(string sourthUrl) { string eurl = HttpUtility.UrlEncode(sourthUrl); eurl = Convert.ToBase64String(encoding.GetBytes(eurl)); return eurl; } #endregion #region URL的64位解码 public static string Base64Decrypt(string eStr) { if (!IsBase64(eStr)) { return eStr; } byte[] buffer = Convert.FromBase64String(eStr); string sourthUrl = encoding.GetString(buffer); sourthUrl = HttpUtility.UrlDecode(sourthUrl); return sourthUrl; } /// <summary> /// 是否是Base64字符串 /// </summary> /// <param name="eStr"></param> /// <returns></returns> public static bool IsBase64(string eStr) { if ((eStr.Length % 4) != 0) { return false; } if (!Regex.IsMatch(eStr, "^[A-Z0-9/+=]*$", RegexOptions.IgnoreCase)) { return false; } return true; } #endregion /// <summary> /// 添加URL参数 /// </summary> public static string AddParam(string url, string paramName, string value) { Uri uri = new Uri(url); if (string.IsNullOrEmpty(uri.Query)) { string eval = HttpContext.Current.Server.UrlEncode(value); return String.Concat(url, "?" + paramName + "=" + eval); } else { string eval = HttpContext.Current.Server.UrlEncode(value); return String.Concat(url, "&" + paramName + "=" + eval); } } /// <summary> /// 更新URL参数 /// </summary> public static string UpdateParam(string url, string paramName, string value) { string keyWord = paramName+"="; int index = url.IndexOf(keyWord)+keyWord.Length; int index1 = url.IndexOf("&", index); if (index1 == -1) { url = url.Remove(index, url.Length - index); url = string.Concat(url, value); return url; } url = url.Remove(index,index1 - index); url = url.Insert(index, value); return url; } #region 分析URL所属的域 public static void GetDomain(string fromUrl, out string domain, out string subDomain) { domain = ""; subDomain = ""; try { if (fromUrl.IndexOf("的名片") > -1) { subDomain = fromUrl; domain = "名片"; return; } UriBuilder builder = new UriBuilder(fromUrl); fromUrl = builder.ToString(); Uri u = new Uri(fromUrl); if (u.IsWellFormedOriginalString()) { if (u.IsFile) { subDomain = domain = "客户端本地文件路径"; } else { string Authority = u.Authority; string[] ss = u.Authority.Split('.'); if (ss.Length == 2) { Authority = "www." + Authority; } int index = Authority.IndexOf('.', 0); domain = Authority.Substring(index + 1, Authority.Length - index - 1).Replace("comhttp","com"); subDomain = Authority.Replace("comhttp", "com"); if (ss.Length < 2) { domain = "不明路径"; subDomain = "不明路径"; } } } else { if (u.IsFile) { subDomain = domain = "客户端本地文件路径"; } else { subDomain = domain = "不明路径"; } } } catch { subDomain = domain = "不明路径"; } } /// <summary> /// 分析 url 字符串中的参数信息 /// </summary> /// <param name="url">输入的 URL</param> /// <param name="baseUrl">输出 URL 的基础部分</param> /// <param name="nvc">输出分析后得到的 (参数名,参数值) 的集合</param> public static void ParseUrl(string url, out string baseUrl, out NameValueCollection nvc) { if (url == null) throw new ArgumentNullException("url"); nvc = new NameValueCollection(); baseUrl = ""; if (url == "") return; int questionMarkIndex = url.IndexOf('?'); if (questionMarkIndex == -1) { baseUrl = url; return; } baseUrl = url.Substring(0, questionMarkIndex); if (questionMarkIndex == url.Length - 1) return; string ps = url.Substring(questionMarkIndex + 1); // 开始分析参数对 Regex re = new Regex(@"(^|&)?(w+)=([^&]+)(&|$)?", RegexOptions.Compiled); MatchCollection mc = re.Matches(ps); foreach (Match m in mc) { nvc.Add(m.Result("$2").ToLower(), m.Result("$3")); } } #endregion }
14 SessionHelper，全部代码如下：
public class SessionHelper { public const string LOGININFO_NAME = "LOGININFO_NAME"; public static T Get<T>(string name) { var value = HttpContext.Current.Session[name]; if (value == null) { return default(T); } else { return (T)value; } } public static void Set(string name, object value) { var s = HttpContext.Current.Session[name]; if (s != null) { HttpContext.Current.Session[name] = value; } else { HttpContext.Current.Session.Add(name, value); } } public static void Delete(string name) { HttpContext.Current.Session.Remove(name); } public static void Clear() { HttpContext.Current.Session.Clear(); } public static object GetLoginInfo() { var value = HttpContext.Current.Session[LOGININFO_NAME]; return value; } public static void SetLoginInfo(object value) { var s = HttpContext.Current.Session[LOGININFO_NAME]; if (s != null) { HttpContext.Current.Session[LOGININFO_NAME] = value; } else { HttpContext.Current.Session.Add(LOGININFO_NAME, value); } } public static void RemoveLoginInfo() { HttpContext.Current.Session.Remove(LOGININFO_NAME); } }
使用方式：
例如，登陆模块，用户点击登录之后可设置：
SessionHelper.SetLoginInfo(用户实体);
Session使用：
if (SessionHelper.GetLoginInfo() != null) { 实例化用户实体= (实体)SessionHelper.GetLoginInfo(); }
用户退出最好清空Session
SessionHelper.RemoveLoginInfo();
15 验证码帮助类
效果：
新建验证码帮助类VerificationCodeHelper，全部代码如下：
public class VerificationCodeHelper { private static Color BackColor = Color.White; private static int Width = 62; private static int Height = 21; private Random _random; // private string _code; private int _brushNameIndex; public byte[] GetVCode(string codeStr) { _random = new Random(); using (Bitmap img = new Bitmap(Width, Height)) { // _code = GetRandomCode(); // System.Web.HttpContext.Current.Session["vcode"] = _code; using (Graphics g = Graphics.FromImage(img)) { g.Clear(Color.White);//绘画背景颜色 Paint_Text(g, codeStr);// 绘画文字 // g.DrawString(strCode, new Font("微软雅黑", 15), Brushes.Blue, new PointF(5, 2));// 绘画文字 Paint_TextStain(img);// 绘画噪音点 g.DrawRectangle(Pens.DarkGray, 0, 0, Width - 1, Height - 1);//绘画边框 using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { //将图片 保存到内存流中 img.Save(ms, System.Drawing.Imaging.ImageFormat.Gif); //将内存流 里的 数据 转成 byte 数组 返回 return ms.ToArray(); } } } } /// <summary> /// 绘画文字 /// </summary> /// <param name="g"></param> private void Paint_Text(Graphics g, string code) { g.DrawString(code, GetFont(), GetBrush(), 3, 1); } /// <summary> /// 绘画文字噪音点 /// </summary> /// <param name="g"></param> private void Paint_TextStain(Bitmap b) { string[] BrushName = new string[] { "OliveDrab", "ForestGreen", "DarkCyan", "LightSlateGray", "RoyalBlue", "SlateBlue", "DarkViolet", "MediumVioletRed", "IndianRed", "Firebrick", "Chocolate", "Peru", "Goldenrod" }; for (int n = 0; n < 30; n++) { int x = _random.Next(Width); int y = _random.Next(Height); b.SetPixel(x, y, Color.FromName(BrushName[_brushNameIndex])); } } /// <summary> /// 随机取一个字体 /// </summary> /// <returns></returns> private Font GetFont() { string[] FontItems = new string[]{ "Arial", "Helvetica", "Geneva", "sans-serif", "Verdana" }; int fontIndex = _random.Next(0, FontItems.Length); FontStyle fontStyle = GetFontStyle(_random.Next(0, 2)); return new Font(FontItems[fontIndex], 12, fontStyle); } /**/ /**/ /**/ /// <summary> /// 随机取一个笔刷 /// </summary> /// <returns></returns> private Brush GetBrush() { Brush[] BrushItems = new Brush[]{ Brushes.OliveDrab, Brushes.ForestGreen, Brushes.DarkCyan, Brushes.LightSlateGray, Brushes.RoyalBlue, Brushes.SlateBlue, Brushes.DarkViolet, Brushes.MediumVioletRed, Brushes.IndianRed, Brushes.Firebrick, Brushes.Chocolate, Brushes.Peru, Brushes.Goldenrod }; int brushIndex = _random.Next(0, BrushItems.Length); _brushNameIndex = brushIndex; return BrushItems[brushIndex]; } /// <summary> /// 绘画背景颜色 /// </summary> /// <param name="g"></param> private void Paint_Background(Graphics g) { g.Clear(BackColor); } /**/ /**/ /**/ /// <summary> /// 取一个字体的样式 /// </summary> /// <param name="index"></param> /// <returns></returns> private FontStyle GetFontStyle(int index) { switch (index) { case 0: return FontStyle.Bold; case 1: return FontStyle.Italic; default: return FontStyle.Regular; } } /// <summary> /// 取得一个 4 位的随机码 /// </summary> /// <returns></returns> public string GetRandomCode() { return Guid.NewGuid().ToString().Substring(0, 5); } }
使用：
前台HTML
<img id="checkloing" src="/Login/VCode" class="loginFormCheckCodeImg" onclick="reloadcode('/Login/VCode')" title="Can not see clearly, change one." />
JS:
//刷新验证码 function reloadcode(srcStr) { document.getElementById("checkloing").src = srcStr + "?rand=" + Math.random(); }
Controller
/// <summary> /// 生成验证码 /// </summary> /// <returns></returns> [OutputCache(Duration = 10, VaryByParam = "rand")]//缓存10秒钟 [AllowAnonymous]//跳过登陆验证 public ActionResult VCode() { VerificationCodeHelper vcode = new VerificationCodeHelper(); string codeStr = vcode.GetRandomCode(); if (!string.IsNullOrEmpty(codeStr)) { byte[] arrImg = vcode.GetVCode(codeStr); Session["code"] = codeStr; return File(arrImg, "image/gif"); } else { return RedirectToAction("/控制器/VCode?rand=" + Guid.NewGuid().ToString().Substring(1, 10), "image/jpeg"); } }
16 CookieHelper帮助类
using System; using System.Web; namespace ConsoleApplication5 { /// <summary> /// Cookie 助手 /// </summary> public sealed class CookieHelper { /// <summary> /// 添加一个 Cookie /// </summary> /// <param name="name">名</param> /// <param name="value">值</param> public static void Add(string name, string value) { var cookie = new HttpCookie(name, value); HttpContext.Current.Response.Cookies.Add(cookie); } /// <summary> /// 添加一个 Cookie /// </summary> /// <param name="name">名</param> /// <param name="value">值</param> /// <param name="expires">过期日期和时间</param> public static void Add(string name, string value, DateTime expires) { var cookie = new HttpCookie(name, value) { Expires = expires }; HttpContext.Current.Response.Cookies.Add(cookie); } /// <summary> /// 获取 Cookie 值 /// </summary> /// <param name="name">名</param> /// <returns></returns> public static string Get(string name) { var cookie = HttpContext.Current.Request.Cookies[name]; return cookie == null ? string.Empty : cookie.Value; } } }
17 JsonHepler
using System; using System.Collections.Generic; using System.Web; using System.Text; using System.Reflection; using System.Collections; using System.Data; using System.Data.Common; using System.Web.Script.Serialization; /// <summary> ///JsonHandleHelper 的摘要说明 /// </summary> public class JsonHandleHelper { /// <summary> /// 对象转JSON /// </summary> /// <param name="obj">对象</param> /// <returns>JSON格式的字符串</returns> public static string ObjectToJSON(object obj) { JavaScriptSerializer jss =new JavaScriptSerializer(); try { return jss.Serialize(obj); } catch(Exception ex) { throw new Exception("JSONHelper.ObjectToJSON(): "+ ex.Message); } } /// <summary> /// 转换对象为JSON格式数据 /// </summary> /// <typeparam name="T">类</typeparam> /// <param name="obj">对象</param> /// <returns>字符格式的JSON数据</returns> public static string GetJSON<T>(object obj) { string result = String.Empty; try { System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T)); using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { serializer.WriteObject(ms, obj); result = System.Text.Encoding.UTF8.GetString(ms.ToArray()); } } catch (Exception ex) { throw ex; } return result; } /// <summary> /// 转换List<T>的数据为JSON格式 /// </summary> /// <typeparam name="T">类</typeparam> /// <param name="vals">列表值</param> /// <returns>JSON格式数据</returns> public static string JSON<T>(List<T> vals) { System.Text.StringBuilder st = new System.Text.StringBuilder(); try { System.Runtime.Serialization.Json.DataContractJsonSerializer s = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T)); foreach (T city in vals) { using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { s.WriteObject(ms, city); st.Append(System.Text.Encoding.UTF8.GetString(ms.ToArray())); } } } catch (Exception ex) { throw ex; } return st.ToString(); } /// <summary> /// JSON格式字符转换为T类型的对象 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="jsonStr"></param> /// <returns></returns> public static T ParseFormByJson<T>(string jsonStr) { T obj = Activator.CreateInstance<T>(); using (System.IO.MemoryStream ms = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(jsonStr))) { System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T)); return (T)serializer.ReadObject(ms); } } /// <summary> /// 数据表转键值对集合 /// 把DataTable转成 List集合, 存每一行 /// 集合中放的是键值对字典,存每一列 /// </summary> /// <param name="dt">数据表</param> /// <returns>哈希表数组</returns> public static List<Dictionary<string, object>> DataTableToList(DataTable dt) { List<Dictionary<string, object>> list= new List<Dictionary<string, object>>(); foreach (DataRow dr in dt.Rows) { Dictionary<string, object> dic = new Dictionary<string, object>(); foreach (DataColumn dc in dt.Columns) { dic.Add(dc.ColumnName, dr[dc.ColumnName]); } list.Add(dic); } return list; } /// <summary> /// 数据集转键值对数组字典 /// </summary> /// <param name="dataSet">数据集</param> /// <returns>键值对数组字典</returns> public static Dictionary<string, List<Dictionary<string, object>>> DataSetToDic(DataSet ds) { Dictionary<string, List<Dictionary<string, object>>> result = new Dictionary<string, List<Dictionary<string, object>>>(); foreach (DataTable dt in ds.Tables) result.Add(dt.TableName, DataTableToList(dt)); return result; } /// <summary> /// 数据表转JSON /// </summary> /// <param name="dataTable">数据表</param> /// <returns>JSON字符串</returns> public static string DataTableToJSON(DataTable dt) { return ObjectToJSON(DataTableToList(dt)); } /// <summary> /// JSON文本转对象,泛型方法 /// </summary> /// <typeparam name="T">类型</typeparam> /// <param name="jsonText">JSON文本</param> /// <returns>指定类型的对象</returns> public static T JSONToObject<T>(string jsonText) { JavaScriptSerializer jss =new JavaScriptSerializer(); try { return jss.Deserialize<T>(jsonText); } catch(Exception ex) { throw new Exception("JSONHelper.JSONToObject(): "+ ex.Message); } } /// <summary> /// 将JSON文本转换为数据表数据 /// </summary> /// <param name="jsonText">JSON文本</param> /// <returns>数据表字典</returns> public static Dictionary<string, List<Dictionary<string, object>>> TablesDataFromJSON(string jsonText) { return JSONToObject<Dictionary<string, List<Dictionary<string, object>>>>(jsonText); } /// <summary> /// 将JSON文本转换成数据行 /// </summary> /// <param name="jsonText">JSON文本</param> /// <returns>数据行的字典</returns> public static Dictionary<string, object> DataRowFromJSON(string jsonText) { return JSONToObject<Dictionary<string, object>>(jsonText); } }
18 Log4net高并发、多线程日志记录
using log4net; using log4net.Config; using System; using System.Collections.Concurrent; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace Emrys.FlashLog { public sealed class FlashLogger { /// <summary> /// 记录消息Queue /// </summary> private readonly ConcurrentQueue<FlashLogMessage> _que; /// <summary> /// 信号 /// </summary> private readonly ManualResetEvent _mre; /// <summary> /// 日志 /// </summary> private readonly ILog _log; /// <summary> /// 日志 /// </summary> private static FlashLogger _flashLog = new FlashLogger(); private FlashLogger() { var configFile = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "log4net.config")); if (!configFile.Exists) { throw new Exception("未配置log4net配置文件！"); } // 设置日志配置文件路径 XmlConfigurator.Configure(configFile); _que = new ConcurrentQueue<FlashLogMessage>(); _mre = new ManualResetEvent(false); _log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); } /// <summary> /// 实现单例 /// </summary> /// <returns></returns> public static FlashLogger Instance() { return _flashLog; } /// <summary> /// 另一个线程记录日志，只在程序初始化时调用一次 /// </summary> public void Register() { Thread t = new Thread(new ThreadStart(WriteLog)); t.IsBackground = false; t.Start(); } /// <summary> /// 从队列中写日志至磁盘 /// </summary> private void WriteLog() { while (true) { // 等待信号通知 _mre.WaitOne(); FlashLogMessage msg; // 判断是否有内容需要如磁盘 从列队中获取内容，并删除列队中的内容 while (_que.Count > 0 && _que.TryDequeue(out msg)) { // 判断日志等级，然后写日志 switch (msg.Level) { case FlashLogLevel.Debug: _log.Debug(msg.Message, msg.Exception); break; case FlashLogLevel.Info: _log.Info(msg.Message, msg.Exception); break; case FlashLogLevel.Error: _log.Error(msg.Message, msg.Exception); break; case FlashLogLevel.Warn: _log.Warn(msg.Message, msg.Exception); break; case FlashLogLevel.Fatal: _log.Fatal(msg.Message, msg.Exception); break; } } // 重新设置信号 _mre.Reset(); Thread.Sleep(1); } } /// <summary> /// 写日志 /// </summary> /// <param name="message">日志文本</param> /// <param name="level">等级</param> /// <param name="ex">Exception</param> public void EnqueueMessage(string message, FlashLogLevel level, Exception ex = null) { if ((level == FlashLogLevel.Debug && _log.IsDebugEnabled) || (level == FlashLogLevel.Error && _log.IsErrorEnabled) || (level == FlashLogLevel.Fatal && _log.IsFatalEnabled) || (level == FlashLogLevel.Info && _log.IsInfoEnabled) || (level == FlashLogLevel.Warn && _log.IsWarnEnabled)) { _que.Enqueue(new FlashLogMessage { Message = "[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss,fff") + "] " + message, Level = level, Exception = ex }); // 通知线程往磁盘中写日志 _mre.Set(); } } public static void Debug(string msg, Exception ex = null) { Instance().EnqueueMessage(msg, FlashLogLevel.Debug, ex); } public static void Error(string msg, Exception ex = null) { Instance().EnqueueMessage(msg, FlashLogLevel.Error, ex); } public static void Fatal(string msg, Exception ex = null) { Instance().EnqueueMessage(msg, FlashLogLevel.Fatal, ex); } public static void Info(string msg, Exception ex = null) { Instance().EnqueueMessage(msg, FlashLogLevel.Info, ex); } public static void Warn(string msg, Exception ex = null) { Instance().EnqueueMessage(msg, FlashLogLevel.Warn, ex); } } /// <summary> /// 日志等级 /// </summary> public enum FlashLogLevel { Debug, Info, Error, Warn, Fatal } /// <summary> /// 日志内容 /// </summary> public class FlashLogMessage { public string Message { get; set; } public FlashLogLevel Level { get; set; } public Exception Exception { get; set; } } }
使用：
需要在程序启动时注册，如asp.net 程序中在Global.asax中的Application_Start注册
FlashLogger.Instance().Register();
需要记录日志的地方调用即可：
FlashLogger.Debug("Debug");
FlashLogger.Debug("Debug", new Exception("testexception"));
FlashLogger.Info("Info");
FlashLogger.Fatal("Fatal");
FlashLogger.Error("Error");
FlashLogger.Warn("Warn", new Exception("testexception"));
19 js中汉字转拼音
js类（新建一个pinyin.js文件，代码如下）
String.prototype.toPinyin = function () { var str = ConvertPinyin(this); str = str.toUpperCase(); return str; } // JavaScript Document var PinYin = { "a": "u554au963fu9515", "ai": "u57c3u6328u54ceu5509u54c0u7691u764cu853cu77eeu827eu788du7231u9698u8bf6u6371u55f3u55ccu5ad2u7477u66a7u7839u953fu972d", "an": "u978du6c28u5b89u4ffau6309u6697u5cb8u80fau6848u8c19u57efu63deu72b4u5eb5u6849u94f5u9e4cu9878u9eef", "ang": "u80aeu6602u76ce", "ao": "u51f9u6556u71acu7ff1u8884u50b2u5965u61cau6fb3u5773u62d7u55f7u5662u5c99u5ed2u9068u5aaau9a9cu8071u87afu93cau9cccu93d6", "ba": "u82adu634cu6252u53edu5427u7b06u516bu75a4u5df4u62d4u8dcbu9776u628au8019u575du9738u7f62u7238u8307u83ddu8406u636du5c9cu705eu6777u94afu7c91u9c85u9b43", "bai": "u767du67cfu767eu6446u4f70u8d25u62dcu7a17u859cu63b0u97b4", "ban": "u6591u73edu642cu6273u822cu9881u677fu7248u626eu62ccu4f34u74e3u534au529eu7ecau962au5742u8c73u94a3u7622u764du8228", "bang": "u90a6u5e2eu6886u699cu8180u7ed1u68d2u78c5u868cu9551u508du8c24u84a1u8783", "bao": "u82deu80deu5305u8912u96f9u4fddu5821u9971u5b9du62b1u62a5u66b4u8c79u9c8du7206u52f9u8446u5b80u5b62u7172u9e28u8913u8db5u9f85", "bo": "u5265u8584u73bbu83e0u64adu62e8u94b5u6ce2u535au52c3u640fu94c2u7b94u4f2fu5e1bu8236u8116u818au6e24u6ccau9a73u4eb3u8543u5575u997du6a97u64d8u7934u94b9u9e41u7c38u8ddb", "bei": "u676fu7891u60b2u5351u5317u8f88u80ccu8d1du94a1u500du72c8u5907u60ebu7119u88abu5b5bu9642u90b6u57e4u84d3u5457u602bu6096u789au9e4eu8919u943e", "ben": "u5954u82efu672cu7b28u755au574cu951b", "beng": "u5d29u7ef7u752du6cf5u8e66u8ff8u552au5623u750f", "bi": "u903cu9f3bu6bd4u9119u7b14u5f7cu78a7u84d6u853du6bd5u6bd9u6bd6u5e01u5e87u75f9u95edu655du5f0au5fc5u8f9fu58c1u81c2u907fu965bu5315u4ef3u4ffeu8298u835cu8378u5421u54d4u72f4u5eb3u610eu6ed7u6fdeu5f3cu59a3u5a62u5b16u74a7u8d32u7540u94cbu79d5u88e8u7b5au7b85u7be6u822du895eu8df8u9ac0", "bian": "u97adu8fb9u7f16u8d2cu6241u4fbfu53d8u535eu8fa8u8fa9u8fabu904du533eu5f01u82c4u5fedu6c74u7f0fu7178u782du78a5u7a39u7a86u8759u7b3eu9cca", "biao": "u6807u5f6au8198u8868u5a4au9aa0u98d1u98d9u98dau706cu9556u9573u762du88f1u9cd4", "bie": "u9cd6u618bu522bu762au8e69u9cd8", "bin": "u5f6cu658cu6fd2u6ee8u5bbeu6448u50a7u6d5cu7f24u73a2u6ba1u8191u9554u9accu9b13", "bing": "u5175u51b0u67c4u4e19u79c9u997cu70b3u75c5u5e76u7980u90b4u6452u7ee0u678bu69dfu71f9", "bu": "u6355u535cu54fau8865u57e0u4e0du5e03u6b65u7c3fu90e8u6016u62cau535fu900bu74ffu6661u949au91ad", "ca": "u64e6u5693u7924", "cai": "u731cu88c1u6750u624du8d22u776cu8e29u91c7u5f69u83dcu8521", "can": "u9910u53c2u8695u6b8bu60edu60e8u707fu9a96u74a8u7cb2u9eea", "cang": "u82cdu8231u4ed3u6ca7u85cfu4f27", "cao": "u64cdu7cd9u69fdu66f9u8349u8279u5608u6f15u87acu825a", "ce": "u5395u7b56u4fa7u518cu6d4bu5202u5e3bu607b", "ceng": "u5c42u8e6du564c", "cha": "u63d2u53c9u832cu8336u67e5u78b4u643du5bdfu5c94u5deeu8be7u7339u9987u6c4au59f9u6748u6942u69ceu6aabu9497u9538u9572u8869", "chai": "u62c6u67f4u8c7au4faau8308u7625u867fu9f87", "chan": "u6400u63bau8749u998bu8c17u7f20u94f2u4ea7u9610u98a4u5181u8c04u8c36u8487u5edbu5fcfu6f7au6fb6u5b71u7fbcu5a75u5b17u9aa3u89c7u7985u9561u88e3u87feu8e94", "chang": "u660cu7316u573au5c1du5e38u957fu507fu80a0u5382u655eu7545u5531u5021u4f25u9b2fu82ccu83d6u5f9cu6005u60ddu960au5a3cu5ae6u6636u6c05u9cb3", "chao": "u8d85u6284u949eu671du5632u6f6eu5de2u5435u7092u600au7ec9u6641u8016", "che": "u8f66u626fu64a4u63a3u5f7bu6f88u577cu5c6eu7817", "chen": "u90f4u81e3u8fb0u5c18u6668u5ff1u6c89u9648u8d81u886cu79f0u8c0cu62bbu55d4u5bb8u741bu6987u809cu80c2u789cu9f80", "cheng": "u6491u57ceu6a59u6210u5448u4e58u7a0bu60e9u6f84u8bdau627fu901eu9a8bu79e4u57d5u5d4au5fb5u6d48u67a8u67fdu6a18u665fu584du77a0u94d6u88ceu86cfu9172", "chi": "u5403u75f4u6301u5319u6c60u8fdfu5f1bu9a70u803bu9f7fu4f88u5c3au8d64u7fc5u65a5u70bdu50bau5880u82aau830cu640bu53f1u54e7u557bu55e4u5f73u996cu6cb2u5ab8u6555u80ddu7719u7735u9e31u761bu892bu86a9u87adu7b1eu7beau8c49u8e05u8e1fu9b51", "chong": "u5145u51b2u866bu5d07u5ba0u833au5fe1u61a7u94f3u825f", "chou": "u62bdu916cu7574u8e0cu7a20u6101u7b79u4ec7u7ef8u7785u4e11u4fe6u5733u5e31u60c6u6eb4u59afu7633u96e0u9c8b", "chu": "u81edu521du51fau6a71u53a8u8e87u9504u96cfu6ec1u9664u695au7840u50a8u77d7u6410u89e6u5904u4e8du520du61b7u7eccu6775u696eu6a17u870du8e70u9edc", "chuan": "u63e3u5dddu7a7fu693du4f20u8239u5598u4e32u63beu821bu60f4u9044u5ddbu6c1au948fu9569u8221", "chuang": "u75aeu7a97u5e62u5e8au95efu521bu6006", "chui": "u5439u708au6376u9524u5782u9672u68f0u69cc", "chun": "u6625u693fu9187u5507u6df3u7eafu8822u4fc3u83bcu6c8cu80abu6710u9e51u877d", "chuo": "u6233u7ef0u851fu8fb6u8f8du955eu8e14u9f8a", "ci": "u75b5u8328u78c1u96ccu8f9eu6148u74f7u8bcdu6b64u523au8d50u6b21u8360u5472u5d6fu9e5au8785u7ccdu8d91", "cong": "u806au8471u56f1u5306u4eceu4e1bu506cu82c1u6dd9u9aa2u742eu7481u679e", "cu": "u51d1u7c97u918bu7c07u731du6b82u8e59", "cuan": "u8e7fu7be1u7a9cu6c46u64bau6615u7228", "cui": "u6467u5d14u50acu8106u7601u7cb9u6decu7fe0u8403u60b4u7480u69b1u96b9", "cun": "u6751u5b58u5bf8u78cbu5fd6u76b4", "cuo": "u64aeu6413u63aau632bu9519u539du811eu9509u77ecu75e4u9e7eu8e49u8e9c", "da": "u642du8fbeu7b54u7629u6253u5927u8037u54d2u55d2u601bu59b2u75b8u8921u7b2au977cu9791", "dai": "u5446u6b79u50a3u6234u5e26u6b86u4ee3u8d37u888bu5f85u902eu6020u57edu7519u5454u5cb1u8fe8u902fu9a80u7ed0u73b3u9edb", "dan": "u803du62c5u4e39u5355u90f8u63b8u80c6u65e6u6c2eu4f46u60eeu6de1u8bdeu5f39u86cbu4ebbu510bu5369u840fu5556u6fb9u6a90u6b9au8d55u7708u7605u8043u7baa", "dang": "u5f53u6321u515au8361u6863u8c20u51fcu83eau5b95u7800u94dbu88c6", "dao": "u5200u6363u8e48u5012u5c9bu7977u5bfcu5230u7a3bu60bcu9053u76d7u53e8u5541u5fc9u6d2eu6c18u7118u5fd1u7e9b", "de": "u5fb7u5f97u7684u951d", "deng": "u8e6cu706fu767bu7b49u77aau51f3u9093u5654u5d9du6225u78f4u956bu7c26", "di": "u5824u4f4eu6ef4u8feau654cu7b1bu72c4u6da4u7fdfu5ae1u62b5u5e95u5730u8482u7b2cu5e1du5f1fu9012u7f14u6c10u7c74u8bcbu8c1bu90b8u577bu839cu837bu5600u5a23u67e2u68e3u89ccu7825u78b2u7747u955du7f9du9ab6", "dian": 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"u90b9u8d70u594fu63cdu9139u9cb0", "zu": "u79dfu8db3u5352u65cfu7956u8bc5u963bu7ec4u4fceu83f9u5550u5f82u9a75u8e74", "zuan": "u94bbu7e82u6525u7f35", "zui": "u5634u9189u6700u7f6a", "zun": "u5c0au9075u6499u6a3du9cdf", "zuo": "u6628u5de6u4f50u67deu505au4f5cu5750u5ea7u961du963cu80d9u795au9162", "cou": "u85aeu6971u8f8fu8160", "nang": "u652eu54ddu56d4u9995u66e9", "o": "u5594", "dia": "u55f2", "chuai": "u562cu81aau8e39", "cen": "u5c91u6d94", "diu": "u94e5", "nou": "u8028", "fou": "u7f36", "bia": "u9adf" }; // 汉字转拼音 function ConvertPinyin(l1) { var l2 = l1.length; var I1 = ""; var reg = new RegExp('[a-zA-Z0-9- ]'); for (var i = 0; i < l2; i++) { var val = l1.substr(i, 1); var name = arraySearch(val, PinYin); if (reg.test(val)) { I1 += val+" "; } else if (name !== false) { I1 += name+" "; } } //I1 = I1.replace(/ /g, '-'); //while (I1.indexOf('--') > 0) { // I1 = I1.replace('--', '-'); //} return I1; } // 在对象中搜索 function arraySearch(l1, l2) { for (var name in PinYin) { if (PinYin[name].indexOf(l1) != -1) { return ucfirst(name); break; } } return false; } // 首字母大写 function ucfirst(l1) { if (l1.length > 0) { var first = l1.substr(0, 1).toUpperCase(); var spare = l1.substr(1, l1.length); return first + spare; // return first; } } function nameConvertPy(txtNameID, txtName_pyID, notNullShowID, lengthCheckID) { var txt_Name_other = $("#" + txtNameID).val(); //txt_Name_other = txt_Name_other.replace(/s/g, ''); $("#" + txtNameID).val(txt_Name_other); if (txt_Name_other.length > 0) { $("#" + txtName_pyID).val(ConvertPinyin(txt_Name_other)); //这里是中文转换为拼音 var txt_Name_pinyin = $.trim($("#" + txtName_pyID).val()); if (txt_Name_pinyin.length > 0) { if (txt_Name_other.length > 128) { $("#" + lengthCheckID).show() $("#" + notNullShowID).hide(); } else { $("#" + notNullShowID).hide(); $("#" + lengthCheckID).hide() } } else { $("#" + notNullShowID).show(); $("#" + lengthCheckID).hide(); } } else { $("#" + notNullShowID).show(); $("#" + lengthCheckID).hide(); } } /*$(document).ready(function() { $("#<%=DeptName.ClientID %>").blur(function () { var str=ConvertPinyin($("#<%=DeptName.ClientID %>").val()); $("#<%=PingYinCode.ClientID %>").text(str); }); }); */
使用方式：
var pinyin = name.toPinyin(); //name表示获取到的中文名
图片压缩
新建一个ImageHelper帮助类，代码如下：
public class ImageHelper { private static ImageCodecInfo GetEncoderInfo(string mime_type) { ImageCodecInfo[] imageEncoders = ImageCodecInfo.GetImageEncoders(); for (int i = 0; i <= imageEncoders.Length; i++) { if (imageEncoders[i].MimeType == mime_type) { return imageEncoders[i]; } } return null; } public static void SaveJpg(Image image, string file_name, int level) { try { EncoderParameters encoderParameters = new EncoderParameters(1); encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)level); ImageCodecInfo encoderInfo = ImageHelper.GetEncoderInfo("image/jpeg"); File.Delete(file_name); image.Save(file_name, encoderInfo, encoderParameters); } catch (Exception ex) { throw ex; } } public static MemoryStream SaveJpgToStream(Image image, int level) { try { EncoderParameters encoderParameters = new EncoderParameters(1); encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)level); ImageCodecInfo encoderInfo = ImageHelper.GetEncoderInfo("image/jpeg"); MemoryStream strem = new MemoryStream(); image.Save(strem, encoderInfo, encoderParameters); return strem; } catch (Exception ex) { throw ex; } } public static int SaveJpgAtFileSize(Image image, string file_name, long max_size) { int result; try { for (int i = 100; i > 5; i -= 5) { ImageHelper.SaveJpg(image, file_name, i); if (ImageHelper.GetFileSize(file_name) <= max_size) { result = i; return result; } } result = 5; } catch (Exception ex) { throw ex; } return result; } public static long GetFileSize(string file_name) { long length; try { length = new FileInfo(file_name).Length; } catch (Exception ex) { throw ex; } return length; } public static Bitmap ShrinkageImg(Image iSource, int maxWidth = 800, int maxHeight = 0) { int sW = iSource.Width, sH = iSource.Height; if (maxWidth != 0 && maxWidth < sW) { sW = maxWidth; sH = iSource.Height * maxWidth / iSource.Width; } else if (maxHeight != 0 && maxHeight < sH) { sH = maxHeight; sW = iSource.Width * maxHeight / iSource.Height; } Bitmap ob = new Bitmap(sW, sH); Graphics g = Graphics.FromImage(ob); try { g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.DrawImage(iSource, new Rectangle(0, 0, sW, sH), 0, 0, iSource.Width, iSource.Height, GraphicsUnit.Pixel); return ob; } catch (Exception ex) { throw; } finally { g.Dispose(); iSource.Dispose(); } } public static Bitmap LoadBitmap(string file_name) { Bitmap result; try { Bitmap bitmap2; using (Bitmap bitmap = new Bitmap(file_name)) { bitmap2 = new Bitmap(bitmap.Width, bitmap.Height); using (Graphics graphics = Graphics.FromImage(bitmap2)) { Rectangle rectangle = new Rectangle(0, 0, bitmap.Width, bitmap.Height); graphics.DrawImage(bitmap, rectangle, rectangle, GraphicsUnit.Pixel); } } result = bitmap2; } catch (Exception ex) { throw ex; } return result; } public static byte[] ImageToBytes(Image image) { byte[] result; try { ImageFormat rawFormat = image.RawFormat; using (MemoryStream memoryStream = new MemoryStream()) { if (rawFormat.Equals(ImageFormat.Jpeg)) { image.Save(memoryStream, ImageFormat.Jpeg); } else if (rawFormat.Equals(ImageFormat.Png)) { image.Save(memoryStream, ImageFormat.Png); } else if (rawFormat.Equals(ImageFormat.Bmp)) { image.Save(memoryStream, ImageFormat.Bmp); } else if (rawFormat.Equals(ImageFormat.Gif)) { image.Save(memoryStream, ImageFormat.Gif); } else if (rawFormat.Equals(ImageFormat.Icon)) { image.Save(memoryStream, ImageFormat.Icon); } byte[] array = new byte[memoryStream.Length]; memoryStream.Seek(0L, SeekOrigin.Begin); memoryStream.Read(array, 0, array.Length); result = array; } } catch (Exception ex) { throw ex; } return result; } public static byte[] ImageToBytes(string FilePath) { byte[] result; try { using (MemoryStream memoryStream = new MemoryStream()) { using (Image image = Image.FromFile(FilePath)) { using (Bitmap bitmap = new Bitmap(image)) { bitmap.Save(memoryStream, image.RawFormat); } } result = memoryStream.ToArray(); } } catch (Exception ex) { throw ex; } return result; } public static Image BytesToImage(byte[] buffer, int maxWidth = 800, int maxHeight = 0) { Image result; try { MemoryStream stream = new MemoryStream(buffer); Image image = Image.FromStream(stream); result = ShrinkageImg(image, maxWidth, maxHeight); } catch (Exception ex) { throw ex; } return result; } public static Bitmap BytesToBitmap(byte[] Bytes) { MemoryStream stream = null; try { stream = new MemoryStream(Bytes); return new Bitmap((Image)new Bitmap(stream)); } catch (ArgumentNullException ex) { throw ex; } catch (ArgumentException ex) { throw ex; } finally { stream.Close(); } } }
使用方式：申明一个变量
private const string _filePath = "File";
#region 上传 FTP.FTPUpFile ftpUpLoad = new FTP.FTPUpFile(); HttpPostedFileBase FileUpload_File = Request.Files["FileUpload_File"]; if (FileUpload_File == null || string.IsNullOrEmpty(FileUpload_File.FileName)) { msg = "没找到上传文件!"; return Json(new { Result = "2", MSG = msg }); } string ReFileName = string.Empty; if (!GeneralHelper.CheckFileExtension(FileUpload_File.FileName, FileUpload_File)) return Json(new { Result = "2", MSG = "文件格式不正确，允许上传的文件格式有“.jpg|.gif|.bmp|.jpeg|.png”" }); if (FileUpload_File.ContentLength > 1024 * 1024 * 10) return Json(new { Result = "2", MSG = "上传的文件不允许超过10M" }); var buffer = new byte[FileUpload_File.ContentLength]; FileUpload_File.InputStream.Read(buffer, 0, FileUpload_File.ContentLength); string dire = DateTime.Now.ToString("yyyy-MM-dd"); string directory = string.Format("/{0}", _filePath); string filePath = Request.MapPath(directory); if (!System.IO.Directory.Exists(filePath)) System.IO.Directory.CreateDirectory(filePath); var tempDire = filePath + "/" + dire; if (!Directory.Exists(tempDire)) Directory.CreateDirectory(tempDire); string fileName = string.Format("/{0}/{1}{2}{3}", dire, DateTime.Now.ToString("yyyyMMddHHmmssfff"), GeneralHelper.GetMixPwd(10), ".jpg"); ImageHelper.SaveJpg(ImageHelper.BytesToImage(buffer), filePath + fileName, 75); ReFileName = ftpUpLoad.UpFile(filePath + fileName);//调用ftp上传到服务器 if (string.IsNullOrEmpty(ReFileName)) return Json(new { Result = "2", MSG = "上传失败，可能文件过大，请重试！" }); #endregion
上述FTP类如下
using System; using System.Collections.Generic; using System.Configuration; using System.Drawing; using System.IO; using System.Linq; using System.Net; using System.Text; using System.Threading.Tasks; using System.Web; using System.Web.UI.HtmlControls; using KAB.Utility.Base; namespace KAB.Utility.FTP { /// <summary> /// FTP上传文件 /// </summary> public class FTPUpFile { string Filetype = ConfigurationManager.AppSettings["FileType"]; string ipaddress = ConfigurationManager.AppSettings["IPaddress"]; string Username = ConfigurationManager.AppSettings["UserName"]; string Password = ConfigurationManager.AppSettings["Password"]; /// <summary> /// FTP上传文件 /// </summary> /// <param name="filename">上传文件路径</param> /// <param name="ftpServerIP">FTP服务器的IP和端口</param> /// <param name="ftpPath">FTP服务器下的哪个目录</param> /// <param name="ftpUserID">FTP用户名</param> /// <param name="ftpPassword">FTP密码</param> public bool Upload(string filename, string ftpServerIP, string ftpPath, string ftpUserID, string ftpPassword) { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + ftpPath + "/" + fileInf.Name; try { FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); // ftp用户名和密码 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.KeepAlive = false; // 指定执行什么命令 reqFTP.Method = WebRequestMethods.Ftp.UploadFile; // 指定数据传输类型 reqFTP.UseBinary = true; // 上传文件时通知服务器文件的大小 reqFTP.ContentLength = fileInf.Length; //this.Invoke(InitUProgress, fileInf.Length); // 缓冲大小设置为2kb int buffLength = 4096; byte[] buff = new byte[buffLength]; int contentLen; //// 打开一个文件流 (System.IO.FileStream) 去读上传的文件 //FileStream fs = fileInf.OpenRead(); //// 把上传的文件写入流 //Stream strm = reqFTP.GetRequestStream(); //contentLen = fs.Read(buff, 0, buffLength); //while (contentLen != 0) //{ // strm.Write(buff, 0, contentLen); // contentLen = fs.Read(buff, 0, buffLength); //} //// 关闭两个流 //strm.Close(); //strm.Dispose(); //fs.Close(); //fs.Dispose(); // 打开一个文件流 (System.IO.FileStream) 去读上传的文件 using (FileStream fs = fileInf.OpenRead()) { using (Stream strm = reqFTP.GetRequestStream()) { contentLen = fs.Read(buff, 0, buffLength); while (contentLen != 0) { strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } } } return true; } catch (Exception ex) { return false; } } /// <summary> /// 新建目录 /// </summary> /// <param name="ftpPath"></param> /// <param name="dirName"></param> public void MakeDir(string ftpPath, string dirName, string username, string password) { try { //实例化FTP连接 FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath + dirName)); // ftp用户名和密码 request.Credentials = new NetworkCredential(username, password); // 默认为true，连接不会被关闭 request.KeepAlive = false; //指定FTP操作类型为创建目录 request.Method = WebRequestMethods.Ftp.MakeDirectory; //获取FTP服务器的响应 FtpWebResponse response = (FtpWebResponse)request.GetResponse(); response.Close(); } catch (Exception ex) { //Respons } } /// <summary> /// 删除指定文件 /// </summary> /// <param name="ftpPath"></param> /// <param name="dirName"></param> /// <param name="username"></param> /// <param name="password"></param> public void DeleteFile(string ftpPath, string username, string password) { try { // string uri = "ftp://" + ftpServerIP + "/" + ftpPath + "/" + fileInf.Name; //ftpPath = "ftp://192.168.1.111:2005/2012-12-05/20121206O5CATICE.docx"; //password = "111"; //username = "yuanluluoli"; //实例化FTP连接 FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath)); request.Method = WebRequestMethods.Ftp.DeleteFile; // ftp用户名和密码 request.Credentials = new NetworkCredential(username, password); // 默认为true，连接不会被关闭 request.KeepAlive = false; //获取FTP服务器的响应 FtpWebResponse response = (FtpWebResponse)request.GetResponse(); response.Close(); } catch (Exception ex) { //Respons } } /// <summary> /// 检查目录是否存在 /// </summary> /// <param name="ftpPath">要检查的目录的路径</param> /// <param name="dirName">要检查的目录名</param> /// <returns>存在返回true，否则false</returns> public bool CheckDirectoryExist(string ftpPath, string dirName, string username, string password) { bool result = false; try { //实例化FTP连接 FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath)); // ftp用户名和密码 request.Credentials = new NetworkCredential(username, password); request.KeepAlive = false; //指定FTP操作类型为创建目录 request.Method = WebRequestMethods.Ftp.ListDirectoryDetails; //获取FTP服务器的响应 FtpWebResponse response = (FtpWebResponse)request.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.Default); StringBuilder str = new StringBuilder(); string line = sr.ReadLine(); while (line != null) { str.Append(line); str.Append("|"); line = sr.ReadLine(); } string[] datas = str.ToString().Split('|'); for (int i = 0; i < datas.Length; i++) { if (datas[i].Contains("<DIR>")) { int index = datas[i].IndexOf("<DIR>"); string name = datas[i].Substring(index + 5).Trim(); if (name == dirName) { result = true; break; } } } sr.Close(); sr.Dispose(); response.Close(); } catch (Exception) { return false; } return result; } /// <summary> /// 上传文件 /// </summary> /// <param name="buffer">文件的Byte数组</param> /// <param name="originalName">文件原始名字(带后缀名)</param> /// <param name="perStr">新文件名的前缀</param> /// <returns></returns> public string UpFile(byte[] buffer, string originalName, string perStr = "") { if (buffer == null || buffer.Length <= 0 || string.IsNullOrEmpty(originalName)) throw new ArgumentException("参数错误！"); string filePathstr = string.Empty; string filepathsql = null; try { string pathstr = perStr + DateTime.Now.ToString().Replace("/", "").Replace("-", "").Replace(":", "").Replace(" ", ""); string rodumlist = GeneralHelper.GetMixPwd(10);//10位随机数 filePathstr = "~/File/" + pathstr + rodumlist + Path.GetExtension(originalName); //Stream sr = upfile.PostedFile.InputStream; //byte[] file = new byte[sr.Length]; //sr.Read(file, 0, file.Length); StreamWriter sw = new StreamWriter(HttpContext.Current.Server.MapPath(filePathstr)); sw.BaseStream.Write(buffer, 0, buffer.Length); sw.Flush(); sw.Close(); // file.SaveAs(HttpContext.Current.Server.MapPath(filePathstr));//把文件上传到服务器的绝对路径上 bool check; string ftpPath = DateTime.Now.ToString("yyyy-MM-dd"); string uri = @"ftp://" + ipaddress + "/"; //检查是否存在此目录文件夹 if (CheckDirectoryExist(uri, ftpPath, Username, Password)) { //存在此文件夹就直接上传 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } else { MakeDir(uri, ftpPath, Username, Password);//创建 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } //成功就更新 if (check) { filepathsql = ftpPath + "/" + pathstr + rodumlist + Path.GetExtension(originalName); } //检查是否存在此文件 if (File.Exists(HttpContext.Current.Server.MapPath(filePathstr))) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); } return filepathsql; } catch (Exception ex) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); throw ex; } } /// <summary> /// 上传文件 /// 不修改名字及后缀名 /// </summary> /// <param name="originalFilePath">上传文件的绝对路径</param> /// <returns></returns> public string UpFile(string originalFilePath) { if (string.IsNullOrEmpty(originalFilePath)) throw new ArgumentException("参数错误！"); string filepathsql = null; try { //检查是否存在此文件 if (!File.Exists(originalFilePath)) throw new Exception("文件不存在！"); //Stream sr = upfile.PostedFile.InputStream; //byte[] file = new byte[sr.Length]; //sr.Read(file, 0, file.Length); // file.SaveAs(HttpContext.Current.Server.MapPath(filePathstr));//把文件上传到服务器的绝对路径上 bool check; string ftpPath = DateTime.Now.ToString("yyyy-MM-dd"); string uri = @"ftp://" + ipaddress + "/"; //检查是否存在此目录文件夹 if (CheckDirectoryExist(uri, ftpPath, Username, Password)) { //存在此文件夹就直接上传 check = Upload(originalFilePath, ipaddress, ftpPath, Username, Password); } else { MakeDir(uri, ftpPath, Username, Password);//创建 check = Upload(originalFilePath, ipaddress, ftpPath, Username, Password); } //成功就更新 if (check) { filepathsql = ftpPath + "/" + Path.GetFileName(originalFilePath); } //检查是否存在此文件 if (File.Exists(originalFilePath)) { File.Delete(originalFilePath); } return filepathsql; } catch (Exception ex) { //File.Delete(originalFilePath); throw ex; } } public string Ftp_Up(HtmlInputFile upfile) { //Encrypt En = new Encrypt(); string filePathstr = string.Empty; string filepathsql = null; try { string pathstr = DateTime.Now.ToString().Replace("/", "").Replace("-", "").Replace(":", "").Replace(" ", ""); string rodumlist = GeneralHelper.GetMixPwd(10);//10位随机数 filePathstr = "~/File/" + pathstr + rodumlist + Path.GetExtension(upfile.PostedFile.FileName); Stream sr = upfile.PostedFile.InputStream; byte[] file = new byte[sr.Length]; sr.Read(file, 0, file.Length); StreamWriter sw = new StreamWriter(HttpContext.Current.Server.MapPath(filePathstr)); sw.BaseStream.Write(file, 0, file.Length); sw.Flush(); sw.Close(); sr.Flush(); sr.Close(); // file.SaveAs(HttpContext.Current.Server.MapPath(filePathstr));//把文件上传到服务器的绝对路径上 bool check; string ftpPath = DateTime.Now.ToString("yyyy-MM-dd"); string uri = @"ftp://" + ipaddress + "/"; //检查是否存在此目录文件夹 if (CheckDirectoryExist(uri, ftpPath, Username, Password)) { //存在此文件夹就直接上传 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } else { MakeDir(uri, ftpPath, Username, Password);//创建 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } //成功就更新 if (check) { filepathsql = ftpPath + "/" + pathstr + rodumlist + Path.GetExtension(upfile.PostedFile.FileName); } //检查是否存在此文件 if (File.Exists(HttpContext.Current.Server.MapPath(filePathstr))) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); } return filepathsql; } catch (Exception) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); return filepathsql; // Response.Write("<script>alert(" + ex.Message + ");</script>"); } } /// <summary> /// 上传 /// </summary> /// <param name="file"></param> /// <returns></returns> public string Ftp_Up(HttpPostedFileBase postedFile) { string filePathstr = string.Empty; string filepathsql = null; try { string pathstr = DateTime.Now.ToString("yyyyMMddHHmmss"); string rodumlist = GeneralHelper.GetMixPwd(10);//10位随机数 string filename = System.IO.Path.GetFileName(postedFile.FileName); string eExtension = Path.GetExtension(filename); string strLocation = HttpContext.Current.Server.MapPath("~/File/"); filePathstr = strLocation + pathstr + rodumlist + eExtension; postedFile.SaveAs(filePathstr); bool check; string ftpPath = DateTime.Now.ToString("yyyy-MM-dd"); string uri = @"ftp://" + ipaddress + "/"; //检查是否存在此目录文件夹 if (CheckDirectoryExist(uri, ftpPath, Username, Password)) { //存在此文件夹就直接上传 check = Upload(filePathstr, ipaddress, ftpPath, Username, Password); } else { MakeDir(uri, ftpPath, Username, Password);//创建 check = Upload(filePathstr, ipaddress, ftpPath, Username, Password); } //成功就更新 if (check) { filepathsql = ftpPath + "/" + pathstr + rodumlist + eExtension; } //检查是否存在此文件 if (File.Exists(filePathstr)) { File.Delete(filePathstr); } return filepathsql; } catch (Exception ex) { //检查是否存在此文件 if (File.Exists(filePathstr)) { File.Delete(filePathstr); } return ""; // Response.Write("<script>alert(" + ex.Message + ");</script>"); } } /// <summary> /// FTP下载文件在服务器目录 /// </summary> /// <param name="pathname">本地保存目录路径和文件名称</param> /// <param name="filename">FTP目录路径和文件名称</param> /// <returns></returns> public bool FileDown(string pathname, string filename) { string uri = "ftp://" + ipaddress + "/" + filename; string FileName = pathname;//本地保存目录 //创建一个文件流 FileStream fs = null; Stream responseStream = null; try { //创建一个与FTP服务器联系的FtpWebRequest对象 FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri(uri)); //连接登录FTP服务器 request.Credentials = new NetworkCredential(Username, Password); request.KeepAlive = false; //设置请求的方法是FTP文件下载 request.Method = WebRequestMethods.Ftp.DownloadFile; //获取一个请求响应对象 FtpWebResponse response = (FtpWebResponse)request.GetResponse(); //获取请求的响应流 responseStream = response.GetResponseStream(); //判断本地文件是否存在，如果存在，则打开和重写本地文件 if (File.Exists(FileName)) fs = File.Open(FileName, FileMode.Open, FileAccess.ReadWrite); //判断本地文件是否存在，如果不存在，则创建本地文件 else { fs = File.Create(FileName); } if (fs != null) { int buffer_count = 65536; byte[] buffer = new byte[buffer_count]; int size = 0; while ((size = responseStream.Read(buffer, 0, buffer_count)) > 0) { fs.Write(buffer, 0, size); } fs.Flush(); fs.Close(); responseStream.Close(); } return true; } catch (Exception ex) { return false; } finally { if (fs != null) fs.Close(); if (responseStream != null) responseStream.Close(); } } /// <summary> /// 保存和上传图片 /// </summary> /// <param name="imgtwo">需要上传图片</param> /// <param name="date"></param> /// <returns>文件路径</returns> public string SaveUploadImg(Bitmap imgtwo) { string filePathstr = string.Empty; string filepathsql = null; try { string pathstr = DateTime.Now.ToString().Replace("/", "").Replace("-", "").Replace(":", "").Replace(" ", ""); string rodumlist = GeneralHelper.GetMixPwd(10);//10位随机数 filePathstr = "~/File/" + pathstr + rodumlist + ".jpg"; imgtwo.Save(HttpContext.Current.Server.MapPath(filePathstr));//把文件上传到服务器的绝对路径上 bool check; string ftpPath = DateTime.Now.ToString("yyyy-MM-dd"); string uri = @"ftp://" + ipaddress + "/"; //检查是否存在此目录文件夹 if (CheckDirectoryExist(uri, ftpPath, Username, Password)) { //存在此文件夹就直接上传 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } else { MakeDir(uri, ftpPath, Username, Password);//创建 check = Upload(HttpContext.Current.Server.MapPath(filePathstr), ipaddress, ftpPath, Username, Password); } //成功就更新 if (check) { filepathsql = ftpPath + "/" + pathstr + rodumlist + ".jpg"; } //检查是否存在此文件 if (File.Exists(HttpContext.Current.Server.MapPath(filePathstr))) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); } imgtwo.Dispose(); return filepathsql; } catch (Exception ex) { File.Delete(HttpContext.Current.Server.MapPath(filePathstr)); return filepathsql; } } #region /// <summary> /// 文件大小 /// </summary> public bool _File_Length(int ContentLength) { bool length = false; int FileLen = ContentLength; if (FileLen > 2048 * 1024 == false)//不能超过2M { length = true; } return length; } #endregion //用来获取文件类型 public bool File_PastFileName(string fileName) { //bmp, doc, docx, gif, jpg, jpeg, pdf, png, tif, tiff bool isnot = true; string ext = Path.GetExtension(fileName); string[] type = Filetype.Split(';'); for (int i = 0; i < type.Length; i++) { if (type[i].ToLower() == ext.ToLower()) { isnot = false; break; } } return isnot; } } }
FTP类中使用到的GeneralHelper类如下
public class GeneralHelper { //private static string[] _extensionList = { ".jpg", ".gif", ".bmp", ".doc", ".docx", ".jpeg", ".png", ".tif", ".tiff" }; private static string[] optionABC = { "A", "B", "C" }; private static string numStr = "123456789"; private static string lowEnStr = "abcdefghijkmnpqrstuvwxyz"; private static string uperEnStr = "ABCDEFGHIJKLMNPQRSTUVWXYZ"; public GeneralHelper() { } /// <summary> /// 生成随机数 /// </summary> /// <param name="num"></param> /// <returns></returns> public static string GetMixPwd(int num)//生成混合随机数 { string a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; StringBuilder sb = new StringBuilder(); for (int i = 0; i < num; i++) { sb.Append(a[new Random(Guid.NewGuid().GetHashCode()).Next(0, a.Length - 1)]); } return sb.ToString(); } /// <summary> /// 生成随机数不包含0跟O /// </summary> /// <param name="num"></param> /// <returns></returns> public static string GetMT4pwd(int num) { string a = "23456789ABCDEFGHIJKMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz"; StringBuilder sb = new StringBuilder(); Random randObj = new Random(); if (num > 4) { int ri = randObj.Next(1, num); int rli = (num - ri) / 2; int rui = num - ri - rli; for (int i = 0; i < rli; i++) { sb.Append(lowEnStr[new Random(Guid.NewGuid().GetHashCode()).Next(0, lowEnStr.Length - 1)]); } for (int i = 0; i < ri; i++) { sb.Append(numStr[new Random(Guid.NewGuid().GetHashCode()).Next(0, numStr.Length - 1)]); } for (int i = 0; i < rui; i++) { sb.Append(uperEnStr[new Random(Guid.NewGuid().GetHashCode()).Next(0, uperEnStr.Length - 1)]); } } else for (int i = 0; i < num; i++) { sb.Append(a[new Random(Guid.NewGuid().GetHashCode()).Next(0, a.Length - 1)]); } string str = sb.ToString(); Regex re = new Regex("(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])[a-zA-Z0-9]");//必须包含大小写字母和数字。 while (!re.IsMatch(str)) { str = GetMT4pwd(num); } return str; } /// <summary> /// 生成随机数 /// </summary> /// <param name="num"></param> /// <returns></returns> public static string GetMixPWD(int num)//生成混合随机数 { string a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_!@#$%&"; StringBuilder sb = new StringBuilder(); for (int i = 0; i < num; i++) { sb.Append(a[new Random(Guid.NewGuid().GetHashCode()).Next(0, a.Length - 1)]); } return sb.ToString(); } //随机字符串生成器的主要功能如下： //1、支持自定义字符串长度 //2、支持自定义是否包含数字 //3、支持自定义是否包含小写字母 //4、支持自定义是否包含大写字母 //5、支持自定义是否包含特殊符号 //6、支持自定义字符集 /// <summary> /// 生成随机字符串 /// </summary> /// <param name="length">目标字符串的长度</param> /// <param name="useNum">是否包含数字，1=包含，默认为包含</param> /// <param name="useLow">是否包含小写字母，1=包含，默认为包含</param> /// <param name="useUpp">是否包含大写字母，1=包含，默认为包含</param> /// <param name="useSpe">是否包含特殊字符，1=包含，默认为不包含</param> /// <param name="custom">要包含的自定义字符，直接输入要包含的字符列表</param> /// <returns>指定长度的随机字符串</returns> public static string GetRndstr(int length, string custom = "", bool useNum = true, bool useLow = true, bool useUpp = false, bool useSpe = false) { byte[] b = new byte[4]; new System.Security.Cryptography.RNGCryptoServiceProvider().GetBytes(b); Random r = new Random(BitConverter.ToInt32(b, 0)); string s = null, str = custom; if (useNum == true) { str += "23456789"; } if (useLow == true) { str += "abcdefghijkmnpqrstuvwxyz"; } if (useUpp == true) { str += "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; } if (useSpe == true) { str += "!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~"; } for (int i = 0; i < length; i++) { s += str.Substring(r.Next(0, str.Length - 1), 1); } return s; } /// <summary> /// 检查上传文件的后缀名 /// 允许上传的有：".jpg", ".gif", ".bmp", ".doc", ".docx", ".jpeg", ".png", ".tif", ".tiff" /// </summary> /// <param name="fileName">待检查的文件完整名称</param> /// <returns></returns> public static bool CheckFileExtension(string fileName) { try { if (string.IsNullOrEmpty(fileName)) return false; fileName = fileName.ToLower(); string extension = Path.GetExtension(fileName); if (string.IsNullOrEmpty(extension)) return false; string[] _extensionList = { ".jpg", ".gif", ".bmp", ".doc", ".docx", ".jpeg", ".png", ".tif", ".tiff" }; if (!_extensionList.Contains(extension)) return false; return true; } catch (Exception ex) { throw ex; } } /// <summary> /// 检查上传文件的后缀名 /// 允许上传的有：“.jpg|.gif|.bmp|.jpeg|.png” /// </summary> /// <param name="fileName">待检查的文件完整名称</param> /// <returns></returns> public static bool CheckIsImgExtension(string fileName) { try { if (string.IsNullOrEmpty(fileName)) return false; fileName = fileName.ToLower(); string extension = Path.GetExtension(fileName); if (string.IsNullOrEmpty(extension)) return false; string[] _extensionList = { ".jpg", ".gif", ".bmp", ".jpeg", ".png" }; if (!_extensionList.Contains(extension)) return false; return true; } catch (Exception ex) { throw ex; } } private static string GeneraOpionAnswer(int mmss) { int CurrentMMss = DateTime.Now.Millisecond; if (mmss == CurrentMMss) CurrentMMss = Convert.ToInt32(Convert.ToInt32(CurrentMMss / 1245) * 131337933); else CurrentMMss = mmss; Random ran = new Random(CurrentMMss); int j = ran.Next(0, optionABC.Length);//因为数组长度是7，所以这里范围就用0到6 return optionABC[j]; } public static string CorrectAnswerList() { string[] CorrectAnswer = new string[2]; Random rdr = new Random(DateTime.Now.Millisecond * 12734); CorrectAnswer[0] = "A,C,B,B"; CorrectAnswer[1] = "B,C,B,B"; int rj = rdr.Next(0, CorrectAnswer.Length); return CorrectAnswer[rj]; } public static string ErrorAnswerList() { string[] ErrorAnswer = new string[7]; Random rdd = new Random(DateTime.Now.Millisecond); // RandomHelper r = new RandomHelper(); ErrorAnswer[0] = "C," + GeneraOpionAnswer(DateTime.Now.Millisecond * 123) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 760) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 123); ErrorAnswer[1] = GeneraOpionAnswer(DateTime.Now.Millisecond * 123) + ",A," + GeneraOpionAnswer(DateTime.Now.Millisecond * 321) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 231); ErrorAnswer[2] = GeneraOpionAnswer(DateTime.Now.Millisecond * 456) + ",B," + GeneraOpionAnswer(DateTime.Now.Millisecond * 654) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 564); ErrorAnswer[3] = GeneraOpionAnswer(DateTime.Now.Millisecond * 674) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 789) + ",A," + GeneraOpionAnswer(DateTime.Now.Millisecond * 761); ErrorAnswer[4] = GeneraOpionAnswer(DateTime.Now.Millisecond * 954) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 785) + ",C," + GeneraOpionAnswer(DateTime.Now.Millisecond * 234); ErrorAnswer[5] = GeneraOpionAnswer(DateTime.Now.Millisecond * 243) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 879) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 563) + ",A"; ErrorAnswer[6] = GeneraOpionAnswer(DateTime.Now.Millisecond * 908) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 547) + "," + GeneraOpionAnswer(DateTime.Now.Millisecond * 748) + ",C"; return ErrorAnswer[rdd.Next(0, ErrorAnswer.Length)]; } /// <summary> /// 检查上传文件的后缀名 /// 允许上传的有：".jpg", ".gif", ".bmp", ".doc", ".docx", ".jpeg", ".png", ".tif", ".tiff" /// </summary> /// <param name="fileName">待检查的文件完整名称</param> /// <returns></returns> public static bool CheckFileExtension(string fileName, HttpPostedFileBase postedFile = null) { try { if (string.IsNullOrEmpty(fileName)) return false; string extension = Path.GetExtension(fileName); if (string.IsNullOrEmpty(extension)) { if (postedFile == null) return false; else { int iEx = GetIExtension(postedFile); if (iEx == (int)FileExtension.BMP || iEx == (int)FileExtension.JPG || iEx == (int)FileExtension.GIF || iEx == (int)FileExtension.PNG) { return true; } return false; } } else extension = extension.ToLower(); string[] _extensionList = { ".jpg", ".gif", ".bmp", ".doc", ".docx", ".jpeg", ".png", ".tif", ".tiff" }; if (!_extensionList.Contains(extension)) return false; return true; } catch (Exception ex) { throw ex; } } public enum FileExtension { GIF = 7173, JPG = 255216, BMP = 6677, PNG = 13780, DOC = 208207, DOCX = 8075, XLSX = 8075, JS = 239187, XLS = 208207, SWF = 6787, MID = 7784, RAR = 8297, ZIP = 8075, XML = 6063, TXT = 7067, MP3 = 7368, WMA = 4838 // 239187 aspx // 117115 cs // 119105 js // 210187 txt //255254 sql // 7790 exe dll, // 8297 rar // 6063 xml // 6033 html } /// <summary> /// 根据数据流，获取文件格式 /// </summary> /// <param name="fu"></param> /// <returns></returns> private static int GetIExtension(HttpPostedFileBase fu) { try { int fileLen = fu.ContentLength; byte[] imgArray = new byte[fileLen]; fu.InputStream.Read(imgArray, 0, fileLen); MemoryStream ms = new MemoryStream(imgArray); System.IO.BinaryReader br = new System.IO.BinaryReader(ms); string fileclass = ""; byte buffer; try { buffer = br.ReadByte(); fileclass = buffer.ToString(); buffer = br.ReadByte(); fileclass += buffer.ToString(); } catch { } br.Close(); ms.Close(); //注意将文件流指针还原 fu.InputStream.Position = 0; int iExt = Int32.Parse(fileclass); return iExt; } catch (Exception ex) { throw ex; } } }
FTP再weboConfig中新建几个key
前台：
<!--上传的地方--> <table id="tablefileup" width="100%" border="0" cellspacing="0" cellpadding="0" style="text-align: center; display: none;"> <tr> <td align="center"> <label id="lblerror" style="color: Red" /> </td> </tr> <tr> <td align="center"> @using (Html.BeginForm("IDCardExpireUpload", "AccountCommon", FormMethod.Post, new { enctype = "multipart/form-data", id = "frmUP" })) { <input type="hidden" id="fileType" name="fileType" /> <input style="WIDTH: 300px" id="upfileCer" name="FileUpload_File" type="file" /> <input type="button" id="btnUpload" class="cup1" /> } </td> </tr> <tr> <td align="center"> <br /> <label id="info"></label> <br /> <font style="color: Red">仅接受格式为：bmp,jpg,jpeg,png;文件大小需小于6M</font> </td> </tr> </table>
JS
$("#btnUpload").click(function () {
var index = layer.load(0, { shade: [0.1, '#fff'] });
$("#frmUP").ajaxSubmit({
dataType: 'json',
success: function (data) {
console.log(data);
if (data.Result == "1") {
//alert(data.MSG);
if (data.fileType == 1) {
document.getElementById("idcardFront").innerHTML = data.URL;
$("#upfileCer").val('');
layer.close(index);
$("#tablefileup").hide();
layer.msg('上传成功');
}
else {
document.getElementById("idcardBack").innerHTML = data.URL;
$("#upfileCer").val('');
layer.close(index);
$("#tablefileup").hide();
layer.msg('上传成功');
}
// window.location.reload();
return;
} else {
layer.msg('' + data.MSG, function () { });
layer.close(index);
//alert(data.MSG);
return;
}
},
error: function (msg) {
console.log(msg);
layer.close(index);
return;
}
})
})
效果展示：
未完待续，持续更新。。。。