using System; using System.Collections; using System.Data; using System.Text; using System.Collections.Generic; using System.Data.Common; using System.Reflection; using WHC.Pager.Entity; using WHC.Framework.Commons; namespace WHC.Framework.ControlUtil { /// <summary> /// 业务基类对象 /// </summary> /// <typeparam name="T">业务对象类型</typeparam> public class BaseBLL<T> where T : BaseEntity, new() { #region 构造函数 private string dalName = ""; /// <summary> /// BLL业务类的全名（子类必须实现），可使用this.GetType().FullName /// </summary> protected string bllFullName; /// <summary> /// 数据访问层程序集的清单文件的文件名，不包括其扩展名，可使用Assembly.GetExecutingAssembly().GetName().Name /// </summary> protected string dalAssemblyName; /// <summary> /// BLL命名空间的前缀（BLL.) /// </summary> protected string bllPrefix = "BLL."; /// <summary> /// 基础数据访问层接口对象 /// </summary> protected IBaseDAL<T> baseDal = null; /// <summary> /// 默认构造函数，调用后需手动调用一次 Init() 方法进行对象初始化 /// </summary> public BaseBLL() { } /// <summary> /// 参数赋值后，初始化相关对象 /// </summary> /// <param name="bllFullName">BLL业务类的全名（子类必须实现）,子类构造函数传入this.GetType().FullName</param> /// <param name="dalAssemblyName">数据访问层程序集的清单文件的文件名，不包括其扩展名。设置为NULL或默认为Assembly.GetExecutingAssembly().GetName().Name</param> /// <param name="bllPrefix">BLL命名空间的前缀（BLL.)</param> /// <param name="dbConfigName">数据库配置项名称</param> protected void Init(string bllFullName, string dalAssemblyName = null, string dbConfigName = null, string bllPrefix = "BLL.") { if (string.IsNullOrEmpty(bllFullName)) throw new ArgumentNullException("子类未设置bllFullName业务类全名！"); if (string.IsNullOrEmpty(dalAssemblyName)) { dalAssemblyName = System.Reflection.Assembly.GetExecutingAssembly().GetName().Name; } //赋值，准备构建对象 this.bllFullName = bllFullName; this.dalAssemblyName = dalAssemblyName; this.bllPrefix = bllPrefix; #region 根据不同的数据库类型，构造相应的DAL层 AppConfig config = new AppConfig(); string dbType = config.AppConfigGet("ComponentDbType"); if (string.IsNullOrEmpty(dbType)) { dbType = "sqlserver"; } dbType = dbType.ToLower(); string DALPrefix = ""; if (dbType == "sqlserver") { DALPrefix = "DALSQL."; } else if (dbType == "access") { DALPrefix = "DALAccess."; } else if (dbType == "oracle") { DALPrefix = "DALOracle."; } else if (dbType == "sqlite") { DALPrefix = "DALSQLite."; } else if (dbType == "mysql") { DALPrefix = "DALMySql."; } #endregion this.dalName = bllFullName.Replace(bllPrefix, DALPrefix);//替换中级的BLL.为DAL.，就是DAL类的全名 baseDal = Reflect<IBaseDAL<T>>.Create(this.dalName, dalAssemblyName);//构造对应的DAL数据访问层的对象类 if (!string.IsNullOrEmpty(dbConfigName)) { baseDal.SetDbConfigName(dbConfigName); //设置数据库配置项名称 } } /// <summary> /// 调用前检查baseDal是否为空引用 /// </summary> protected void CheckDAL() { if (baseDal == null) { throw new ArgumentNullException("baseDal", "未能成功创建对应的DAL对象，请在BLL业务类构造函数中调用base.Init(**,**)方法，如base.Init(this.GetType().FullName, System.Reflection.Assembly.GetExecutingAssembly().GetName().Name);"); } } #endregion #region 对象添加、修改、查询接口 /// <summary> /// 插入指定对象到数据库中 /// </summary> /// <param name="obj">指定的对象</param> /// <param name="trans">事务对象</param> /// <returns>执行操作是否成功。</returns> public virtual bool Insert(T obj, DbTransaction trans = null) { CheckDAL(); return baseDal.Insert(obj, trans); } /// <summary> /// 插入指定对象到数据库中 /// </summary> /// <param name="obj">指定的对象</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回新增记录的自增长ID。</returns> public virtual int Insert2(T obj, DbTransaction trans = null) { CheckDAL(); return baseDal.Insert2(obj, trans); } /// <summary> /// 更新对象属性到数据库中 /// </summary> /// <param name="obj">指定的对象</param> /// <param name="primaryKeyValue">主键的值</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool Update(T obj, object primaryKeyValue, DbTransaction trans = null) { CheckDAL(); return baseDal.Update(obj, primaryKeyValue, trans); } /// <summary> /// 更新数据到数据表中 /// </summary> /// <param name="commandType">SQL类型</param> /// <param name="sql">sql或者存储过程</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool Update(CommandType commandType, string sql, DbTransaction trans = null) { CheckDAL(); return baseDal.Update(commandType, sql, trans); } /// <summary> /// 更新某个表一条记录(只适用于用单键,用string类型作键值的表) /// </summary> /// <param name="id">ID号</param> /// <param name="recordField">Hashtable:键[key]为字段名;值[value]为字段对应的值</param> /// <param name="targetTable">需要操作的目标表名称</param> /// <param name="trans">事务对象,如果使用事务,传入事务对象,否则为Null不使用事务</param> public virtual bool Update(object id, Hashtable recordField, string targetTable, DbTransaction trans) { CheckDAL(); return baseDal.Update(id, recordField, targetTable, trans); } /// <summary> /// 插入或更新对象属性到数据库中 /// </summary> /// <param name="obj">指定的对象</param> /// <param name="primaryKeyValue">主键的值</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool InsertUpdate(T obj, object primaryKeyValue, DbTransaction trans = null) { CheckDAL(); return baseDal.InsertUpdate(obj, primaryKeyValue, trans); } /// <summary> /// 如果不存在记录，则插入对象属性到数据库中 /// </summary> /// <param name="obj">指定的对象</param> /// <param name="primaryKeyValue">主键的值</param> /// <param name="trans">事务对象</param> /// <returns>执行插入成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool InsertIfNew(T obj, object primaryKeyValue, DbTransaction trans = null) { CheckDAL(); return baseDal.InsertIfNew(obj, primaryKeyValue, trans); } /// <summary> /// 执行SQL查询语句，返回查询结果的所有记录的第一个字段,用逗号分隔。 /// </summary> /// <param name="sql">SQL语句</param> /// <param name="trans">事务对象</param> /// <returns> /// 返回查询结果的所有记录的第一个字段,用逗号分隔。 /// </returns> public virtual string SqlValueList(string sql, DbTransaction trans = null) { CheckDAL(); return baseDal.SqlValueList(sql, trans); } /// <summary> /// 执行SQL查询语句，返回所有记录的DataTable集合。 /// </summary> /// <param name="sql">SQL查询语句</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable SqlTable(string sql, DbTransaction trans = null) { CheckDAL(); return baseDal.SqlTable(sql, trans); } /// <summary> /// 执行SQL查询语句，返回所有记录的DataTable集合。 /// </summary> /// <param name="sql">SQL查询语句</param> /// <param name="parameters">参数集合</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable SqlTable(string sql, DbParameter[] parameters, DbTransaction trans = null) { CheckDAL(); return baseDal.SqlTable(sql, parameters, trans); } /// <summary> /// 查询数据库,检查是否存在指定ID的对象 /// </summary> /// <param name="key">对象的ID值</param> /// <param name="trans">事务对象</param> /// <returns>存在则返回指定的对象,否则返回Null</returns> public virtual T FindByID(object key, DbTransaction trans = null) { CheckDAL(); return baseDal.FindByID(key, trans); } /// <summary> /// 根据条件查询数据库,如果存在返回第一个对象 /// </summary> /// <param name="condition">查询的条件</param> /// <param name="trans">事务对象</param> /// <returns>指定的对象</returns> public virtual T FindSingle(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.FindSingle(condition, trans); } /// <summary> /// 根据条件查询数据库,如果存在返回第一个对象 /// </summary> /// <param name="condition">查询的条件</param> /// <param name="orderBy">排序条件</param> /// <param name="trans">事务对象</param> /// <returns>指定的对象</returns> public virtual T FindSingle(string condition, string orderBy, DbTransaction trans = null) { CheckDAL(); return baseDal.FindSingle(condition, orderBy, trans); } /// <summary> /// 查找记录表中最旧的一条记录 /// </summary> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual T FindFirst(DbTransaction trans = null) { CheckDAL(); return baseDal.FindFirst(trans); } /// <summary> /// 查找记录表中最新的一条记录 /// </summary> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual T FindLast(DbTransaction trans = null) { CheckDAL(); return baseDal.FindLast(trans); } #endregion #region 返回集合的接口 /// <summary> /// 根据ID字符串(逗号分隔)获取对象列表 /// </summary> /// <param name="idString">ID字符串(逗号分隔)</param> /// <param name="trans">事务对象</param> /// <returns>符合条件的对象列表</returns> public virtual List<T> FindByIDs(string idString, DbTransaction trans = null) { CheckDAL(); return baseDal.FindByIDs(idString, trans); } /// <summary> /// 根据条件查询数据库,并返回对象集合 /// </summary> /// <param name="condition">查询的条件</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> Find(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.Find(condition, trans); } /// <summary> /// 根据条件查询数据库,并返回对象集合 /// </summary> /// <param name="condition">查询的条件</param> /// <param name="orderBy">排序条件</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> Find(string condition, string orderBy, DbTransaction trans = null) { CheckDAL(); return baseDal.Find(condition, orderBy, trans); } /// <summary> /// 根据条件查询数据库,并返回对象集合(用于分页数据显示) /// </summary> /// <param name="condition">查询的条件</param> /// <param name="info">分页实体</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> FindWithPager(string condition, PagerInfo info, DbTransaction trans = null) { CheckDAL(); return baseDal.FindWithPager(condition, info,trans); } /// <summary> /// 根据条件查询数据库,并返回对象集合(用于分页数据显示) /// </summary> /// <param name="condition">查询的条件</param> /// <param name="info">分页实体</param> /// <param name="fieldToSort">排序字段</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> FindWithPager(string condition, PagerInfo info, string fieldToSort, DbTransaction trans = null) { CheckDAL(); return baseDal.FindWithPager(condition, info, fieldToSort, trans); } /// <summary> /// 根据条件查询数据库,并返回对象集合(用于分页数据显示) /// </summary> /// <param name="condition">查询的条件</param> /// <param name="info">分页实体</param> /// <param name="fieldToSort">排序字段</param> /// <param name="desc">是否降序</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> FindWithPager(string condition, PagerInfo info, string fieldToSort, bool desc, DbTransaction trans = null) { CheckDAL(); return baseDal.FindWithPager(condition, info, fieldToSort, desc, trans); } /// <summary> /// 返回数据库所有的对象集合 /// </summary> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> GetAll(DbTransaction trans = null) { CheckDAL(); return baseDal.GetAll(trans); } /// <summary> /// 返回数据库所有的对象集合 /// </summary> /// <param name="orderBy">自定义排序语句，如Order By Name Desc；如不指定，则使用默认排序</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> GetAll(string orderBy, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAll(orderBy, trans); } /// <summary> /// 返回数据库所有的对象集合(用于分页数据显示) /// </summary> /// <param name="info">分页实体信息</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> GetAll(PagerInfo info, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAll(info, trans); } /// <summary> /// 返回数据库所有的对象集合(用于分页数据显示) /// </summary> /// <param name="info">分页实体信息</param> /// <param name="fieldToSort">排序字段</param> /// <param name="desc">是否降序</param> /// <param name="trans">事务对象</param> /// <returns>指定对象的集合</returns> public virtual List<T> GetAll(PagerInfo info, string fieldToSort, bool desc, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAll(info, fieldToSort, desc, trans); } /// <summary> /// 返回所有记录到DataTable集合中 /// </summary> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable GetAllToDataTable(DbTransaction trans = null) { CheckDAL(); return baseDal.GetAllToDataTable(trans); } /// <summary> /// 返回所有记录到DataTable集合中 /// </summary> /// <param name="orderBy">自定义排序语句，如Order By Name Desc；如不指定，则使用默认排序</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable GetAllToDataTable(string orderBy, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAllToDataTable(orderBy, trans); } /// <summary> /// 根据分页条件，返回DataSet对象 /// </summary> /// <param name="info">分页条件</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable GetAllToDataTable(PagerInfo info, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAllToDataTable(info, trans); } /// <summary> /// 根据分页条件，返回DataSet对象 /// </summary> /// <param name="info">分页条件</param> /// <param name="fieldToSort">排序字段</param> /// <param name="trans">事务对象</param> /// <param name="desc">是否降序</param> /// <returns></returns> public virtual DataTable GetAllToDataTable(PagerInfo info, string fieldToSort, bool desc, DbTransaction trans = null) { CheckDAL(); return baseDal.GetAllToDataTable(info, fieldToSort, desc, trans); } /// <summary> /// 根据查询条件，返回记录到DataTable集合中 /// </summary> /// <param name="condition">查询条件</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable FindToDataTable(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.FindToDataTable(condition, trans); } /// <summary> /// 根据查询条件，返回记录到DataTable集合中 /// </summary> /// <param name="condition">查询条件</param> /// <param name="pagerInfo">分页条件</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable FindToDataTable(string condition, PagerInfo pagerInfo, DbTransaction trans = null) { CheckDAL(); return baseDal.FindToDataTable(condition, pagerInfo, trans); } /// <summary> /// 根据条件查询数据库,并返回DataTable集合(用于分页数据显示) /// </summary> /// <param name="condition">查询的条件</param> /// <param name="info">分页实体</param> /// <param name="fieldToSort">排序字段</param> /// <param name="desc">是否降序</param> /// <param name="trans">事务对象</param> /// <returns>指定DataTable的集合</returns> public virtual DataTable FindToDataTable(string condition, PagerInfo info, string fieldToSort, bool desc, DbTransaction trans = null) { CheckDAL(); return baseDal.FindToDataTable(condition, info, fieldToSort, desc, trans); } /// <summary> /// 获取字段列表 /// </summary> /// <param name="fieldName">字段名称</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual List<string> GetFieldList(string fieldName, DbTransaction trans = null) { CheckDAL(); return baseDal.GetFieldList(fieldName, trans); } /// <summary> /// 根据条件，获取某字段数据字典列表 /// </summary> /// <param name="fieldName">字段名称</param> /// <param name="trans">事务对象</param> /// <returns></returns> public List<string> GetFieldListByCondition(string fieldName, string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.GetFieldListByCondition(fieldName, condition, trans); } /// <summary> /// 根据条件，从视图里面获取记录 /// </summary> /// <param name="viewName">视图名称</param> /// <param name="condition">查询条件</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable FindByView(string viewName, string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.FindByView(viewName, condition, trans); } /// <summary> /// 根据条件，从视图里面获取记录 /// </summary> /// <param name="viewName">视图名称</param> /// <param name="condition">查询条件</param> /// <param name="sortField">排序字段</param> /// <param name="isDescending">是否为降序</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable FindByView(string viewName, string condition, string sortField, bool isDescending, DbTransaction trans = null) { CheckDAL(); return baseDal.FindByView(viewName, condition, sortField, isDescending, trans); } /// <summary> /// 根据条件，从视图里面获取记录 /// </summary> /// <param name="viewName">视图名称</param> /// <param name="condition">查询条件</param> /// <param name="sortField">排序字段</param> /// <param name="isDescending">是否为降序</param> /// <param name="info">分页条件</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual DataTable FindByViewWithPager(string viewName, string condition, string sortField, bool isDescending, PagerInfo info, DbTransaction trans = null) { CheckDAL(); return baseDal.FindByViewWithPager(viewName, condition, sortField, isDescending, info, trans); } #endregion #region 基础接口 /// <summary> /// 获取表的所有记录数量 /// </summary> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual int GetRecordCount(DbTransaction trans = null) { CheckDAL(); return baseDal.GetRecordCount(trans); } /// <summary> /// 获取表的指定条件记录数量 /// </summary> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual int GetRecordCount(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.GetRecordCount(condition, trans); } /// <summary> /// 根据condition条件，判断是否存在记录 /// </summary> /// <param name="condition">查询的条件</param> /// <param name="trans">事务对象</param> /// <returns>如果存在返回True，否则False</returns> public virtual bool IsExistRecord(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.IsExistRecord(condition, trans); } /// <summary> /// 查询数据库,检查是否存在指定键值的对象 /// </summary> /// <param name="fieldName">指定的属性名</param> /// <param name="key">指定的值</param> /// <param name="trans">事务对象</param> /// <returns>存在则返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool IsExistKey(string fieldName, object key, DbTransaction trans = null) { CheckDAL(); return baseDal.IsExistKey(fieldName, key, trans); } /// <summary> /// 根据主键和字段名称，获取对应字段的内容 /// </summary> /// <param name="key">指定对象的ID</param> /// <param name="fieldName">字段名称</param> /// <param name="trans">事务对象</param> /// <returns></returns> public virtual string GetFieldValue(object key, string fieldName, DbTransaction trans = null) { CheckDAL(); return baseDal.GetFieldValue(key, fieldName, trans); } /// <summary> /// 根据指定对象的ID,从数据库中删除指定对象 /// </summary> /// <param name="key">指定对象的ID</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool Delete(object key, DbTransaction trans = null) { CheckDAL(); return baseDal.Delete(key, trans); } /// <summary> /// 根据指定条件,从数据库中删除指定对象 /// </summary> /// <param name="condition">删除记录的条件语句</param> /// <param name="trans">事务对象</param> /// <returns>执行成功返回<c>true</c>，否则为<c>false</c>。</returns> public virtual bool DeleteByCondition(string condition, DbTransaction trans = null) { CheckDAL(); return baseDal.DeleteByCondition(condition, trans); } /// <summary> /// 打开数据库连接，并创建事务对象 /// </summary> public virtual DbTransaction CreateTransaction() { CheckDAL(); return baseDal.CreateTransaction(); } /// <summary> /// 打开数据库连接，并创建事务对象 /// </summary> /// <param name="level">事务级别</param> public virtual DbTransaction CreateTransaction(IsolationLevel level) { CheckDAL(); return baseDal.CreateTransaction(level); } #endregion #region 其他接口 /// <summary> /// 初始化数据库表名 /// </summary> /// <param name="tableName">数据库表名</param> public virtual void InitTableName(string tableName) { CheckDAL(); baseDal.InitTableName(tableName); } /// <summary> /// 获取表的字段名称和数据类型列表 /// </summary> /// <returns></returns> public virtual DataTable GetFieldTypeList() { CheckDAL(); return baseDal.GetFieldTypeList(); } /// <summary> /// 获取字段中文别名（用于界面显示）的字典集合 /// </summary> /// <returns></returns> public virtual Dictionary<string, string> GetColumnNameAlias() { CheckDAL(); return baseDal.GetColumnNameAlias(); } /// <summary> /// 获取指定字段的报表数据 /// </summary> /// <param name="fieldName">表字段</param> /// <param name="condition">查询条件</param> /// <returns></returns> public virtual DataTable GetReportData(string fieldName, string condition) { CheckDAL(); return baseDal.GetReportData(fieldName, condition); } #endregion } }