1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>Prettify</title> 6 <link href="prettify.min.css" rel="stylesheet"> 7 <script src="prettify.min.js"></script> 8 <style> 9 pre.prettyprint 10 { 11 border: 2px dashed #888; 12 background: #ddd; 13 } 14 </style> 15 <script> 16 window.onload = function () 17 { 18 // Load Prettify 19 prettyPrint(); 20 } 21 </script> 22 </head> 23 <body> 24 <pre class="prettyprint lang-java"> 25 // 异步方式 26 // 结果以事件回调方式返回 27 Command command = new Command("/system/bin/ping", 28 "-c", "4", "-s", "100", 29 "www.baidu.com"); 30 Command.command(command, new Command.CommandListener() { 31 @Override 32 public void onCompleted(String str) { 33 Log.i(TAG, "onCompleted： " + str); 34 } 35 @Override 36 public void onCancel() { 37 Log.i(TAG, "onCancel"); 38 } 39 @Override 40 public void onError() { 41 Log.i(TAG, "onError"); 42 } 43 }); 44 </pre> 45 <pre class="prettyprint lang-C#"> 46 using System; 47 using System.Collections; 48 using System.Collections.Generic; 49 using System.Configuration; 50 using System.Data; 51 using System.Data.SqlClient; 52 using System.Linq; 53 using System.Text; 54 55 namespace Justin.FrameWork.Helper 56 { 57 /// <summary> 58 /// Sql访问数据库帮助类 59 /// </summary> 60 public abstract class SqlHelper 61 { 62 63 /// <summary> 64 /// 如"data source=.;initial catalog=PrivilegeDB;integrated security=True;multipleactiveresultsets=True;" 65 /// </summary> 66 public static string ConnStr = ""; 67 public static int CommandTimeout = 600; 68 69 private static Hashtable parmCache = Hashtable.Synchronized(new Hashtable()); 70 71 public static int ExecuteNonQuery(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 72 { 73 SqlCommand cmd = new SqlCommand(); 74 using (SqlConnection connection = new SqlConnection(connectionString)) 75 { 76 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 77 int val = cmd.ExecuteNonQuery(); 78 cmd.Parameters.Clear(); 79 return val; 80 } 81 } 82 public static int ExecuteNonQuery(SqlConnection connection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 83 { 84 SqlCommand cmd = new SqlCommand(); 85 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 86 int val = cmd.ExecuteNonQuery(); 87 cmd.Parameters.Clear(); 88 return val; 89 } 90 public static int ExecuteNonQuery(SqlTransaction trans, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 91 { 92 SqlCommand cmd = new SqlCommand(); 93 cmd.CommandTimeout = 600; 94 PrepareCommand(cmd, trans.Connection, trans, cmdType, cmdText, commandParameters); 95 int val = cmd.ExecuteNonQuery(); 96 cmd.Parameters.Clear(); 97 return val; 98 } 99 100 public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 101 { 102 SqlCommand cmd = new SqlCommand(); 103 try 104 { 105 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 106 SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection); 107 cmd.Parameters.Clear(); 108 return rdr; 109 } 110 111 catch 112 { 113 connection.Close(); 114 throw; 115 } 116 } 117 public static object ExecuteScalar(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 118 { 119 SqlCommand cmd = new SqlCommand(); 120 using (SqlConnection connection = new SqlConnection(connectionString)) 121 { 122 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 123 object val = cmd.ExecuteScalar(); 124 cmd.Parameters.Clear(); 125 return val; 126 } 127 128 } 129 public static object ExecuteScalar(SqlConnection connection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 130 { 131 SqlCommand cmd = new SqlCommand(); 132 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 133 object val = cmd.ExecuteScalar(); 134 cmd.Parameters.Clear(); 135 return val; 136 } 137 138 public static DataTable ExecuteDataTable(SqlConnection connection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 139 { 140 141 SqlCommand cmd = new SqlCommand(); 142 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 143 SqlDataAdapter MyAdapter = new SqlDataAdapter(); 144 MyAdapter.SelectCommand = cmd; 145 DataSet ds = new DataSet(); 146 MyAdapter.Fill(ds); 147 cmd.Parameters.Clear(); 148 DataTable table = ds.Tables[0]; 149 ds.Dispose(); 150 return table; 151 } 152 public static DataTable ExecuteDataTable(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters) 153 { 154 using (SqlConnection connection = new SqlConnection(connectionString)) 155 { 156 SqlCommand cmd = new SqlCommand(); 157 158 try 159 { 160 PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters); 161 SqlDataAdapter MyAdapter = new SqlDataAdapter(); 162 MyAdapter.SelectCommand = cmd; 163 DataSet ds = new DataSet(); 164 MyAdapter.Fill(ds); 165 cmd.Parameters.Clear(); 166 DataTable table = ds.Tables[0]; 167 ds.Dispose(); 168 connection.Close(); 169 return table; 170 } 171 catch 172 { 173 connection.Close(); 174 throw; 175 } 176 } 177 } 178 179 180 public static void CacheParameters(string cacheKey, params SqlParameter[] commandParameters) 181 { 182 parmCache[cacheKey] = commandParameters; 183 } 184 public static SqlParameter[] GetCachedParameters(string cacheKey) 185 { 186 187 SqlParameter[] cachedParms = (SqlParameter[])parmCache[cacheKey]; 188 if (cachedParms == null) 189 return null; 190 SqlParameter[] clonedParms = new SqlParameter[cachedParms.Length]; 191 for (int i = 0, j = cachedParms.Length; i < j; i++) 192 clonedParms[i] = (SqlParameter)((ICloneable)cachedParms[i]).Clone(); 193 return clonedParms; 194 } 195 private static void PrepareCommand(SqlCommand cmd, SqlConnection connection, SqlTransaction trans, CommandType cmdType, string cmdText, SqlParameter[] cmdParms) 196 { 197 if (connection.State != ConnectionState.Open) 198 connection.Open(); 199 cmd.Connection = connection; 200 cmd.CommandText = cmdText; 201 cmd.CommandTimeout = CommandTimeout; 202 if (trans != null) 203 cmd.Transaction = trans; 204 cmd.CommandType = cmdType; 205 if (cmdParms != null) 206 { 207 foreach (SqlParameter parm in cmdParms) 208 cmd.Parameters.Add(parm); 209 210 } 211 212 } 213 214 215 public static SqlConnection GetConnection(string connectionString) 216 { 217 return new SqlConnection(connectionString); 218 } 219 } 220 } 221 222 223 </pre> 224 </body> 225 </html>