asp.net下Oracle,SQL Server,Access万能数据库通用类

ASP.NET屏蔽底层数据库(Access,Sqlserver,Oracle)的经典代码

using System; 
using System.Collections; 
using System.Collections.Specialized; 
using System.Data; 
using System.Data.SqlClient; 
using System.Data.OleDb; 
using System.Data.OracleClient; 
using System.Configuration; 
using System.Reflection; 

namespace SystemFramework.DAL 
{ 
/**//// <summary> 
/// All rights reserved 
/// 数据访问基础类 
/// 用户可以修改满足自己项目的需要。 
/// </summary> 
public class DataBaseLayer 
{ 
//数据库连接字符串(web.config来配置) 
//<add key="ConnectionString" value="server=127.0.0.1;database=DATABASE;uid=sa;pwd=" /> 
private string connectionString; 
public string ConntionString 
{ 
get 
{ 
return connectionString ; 
} 
set 
{ 
connectionString = value; 
} 
} 


public DataBaseLayer(string strConnect,string dataType) 
{ 
this.ConntionString = strConnect; 
this.DbType = dataType; 
} 


public DataBaseLayer() 
{ 
this.connectionString = ConfigurationSettings.AppSettings["ConnectionString"] ; 
this.dbType = ConfigurationSettings.AppSettings["DataType"] ; 
} 

/**//// <summary> 
/// 数据库类型 
/// </summary> 
private string dbType; 
public string DbType 
{ 
get 
{ 
if ( dbType == string.Empty || dbType == null ) 
{ 
return "Access"; 
} 
else 
{ 
return dbType; 
} 
} 
set 
{ 
if ( value != string.Empty && value != null ) 
{ 
dbType = value; 
} 
if (dbType ==string.Empty || dbType == null) 
{ 
dbType = ConfigurationSettings.AppSettings["DataType"]; 
} 
if ( dbType == string.Empty || dbType == null ) 
{ 
dbType = "Access"; 
} 
} 
} 




转换参数#region 转换参数 
private System.Data.IDbDataParameter iDbPara(string ParaName,string DataType) 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return GetSqlPara(ParaName,DataType); 

case "Oracle": 
return GetOleDbPara(ParaName,DataType); 

case "Access": 
return GetOleDbPara(ParaName,DataType); 

default : 
return GetSqlPara(ParaName,DataType); 

} 
} 

private System.Data.SqlClient.SqlParameter GetSqlPara( string ParaName , string DataType) 
{ 
switch(DataType) 
{ 
case "Decimal": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Decimal ); 
case "Varchar": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.VarChar ); 
case "DateTime": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.DateTime ); 
case "Iamge": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Image ); 
case "Int": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Int ); 
case "Text": 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.NText ); 
default : 
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.VarChar ); 
} 
} 

private System.Data.OracleClient.OracleParameter GetOraclePara( string ParaName , string DataType) 
{ 
switch(DataType) 
{ 
case "Decimal": 
return new System.Data.OracleClient.OracleParameter( ParaName, System.Data.OracleClient.OracleType.Double); 

case "Varchar": 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.VarChar ); 

case "DateTime": 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.DateTime ); 

case "Iamge": 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.BFile ); 

case "Int": 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.Int32 ); 

case "Text": 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.LongVarChar ); 

default: 
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.VarChar ); 

} 
} 

private System.Data.OleDb.OleDbParameter GetOleDbPara( string ParaName , string DataType) 
{ 
switch(DataType) 
{ 
case "Decimal": 
return new System.Data.OleDb.OleDbParameter( ParaName, System.Data.DbType.Decimal); 

case "Varchar": 
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String ); 

case "DateTime": 
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.DateTime ); 

case "Iamge": 
return new System.Data.OleDb.OleDbParameter( ParaName, System.Data.DbType.Binary ); 

case "Int": 
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.Int32 ); 

case "Text": 
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String ); 

default: 
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String ); 

} 
} 

#endregion 

创建 Connection 和 Command#region 创建 Connection 和 Command 

private IDbConnection GetConnection() 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlConnection(this.ConntionString); 

case "Oracle": 
return new System.Data.OracleClient.OracleConnection(this.ConntionString); 

case "Access": 
return new System.Data.OleDb.OleDbConnection(this.ConntionString); 
default: 
return new System.Data.SqlClient.SqlConnection(this.ConntionString); 
} 
} 


private IDbCommand GetCommand(string Sql,IDbConnection iConn) 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlCommand(Sql,(SqlConnection)iConn); 

case "Oracle": 
return new System.Data.OracleClient.OracleCommand(Sql,(OracleConnection)iConn); 

case "Access": 
return new System.Data.OleDb.OleDbCommand(Sql,(OleDbConnection)iConn); 
default: 
return new System.Data.SqlClient.SqlCommand(Sql,(SqlConnection)iConn); 
} 
} 

private IDbCommand GetCommand() 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlCommand(); 

case "Oracle": 
return new System.Data.OracleClient.OracleCommand(); 

case "Access": 
return new System.Data.OleDb.OleDbCommand(); 
default: 
return new System.Data.SqlClient.SqlCommand(); 
} 
} 

private IDataAdapter GetAdapater(string Sql,IDbConnection iConn) 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlDataAdapter(Sql,(SqlConnection)iConn); 

case "Oracle": 
return new System.Data.OracleClient.OracleDataAdapter(Sql,(OracleConnection)iConn); 

case "Access": 
return new System.Data.OleDb.OleDbDataAdapter(Sql,(OleDbConnection)iConn); 

default: 
return new System.Data.SqlClient.SqlDataAdapter(Sql,(SqlConnection)iConn);; 
} 

} 

private IDataAdapter GetAdapater() 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlDataAdapter(); 

case "Oracle": 
return new System.Data.OracleClient.OracleDataAdapter(); 

case "Access": 
return new System.Data.OleDb.OleDbDataAdapter(); 

default: 
return new System.Data.SqlClient.SqlDataAdapter(); 
} 
} 

private IDataAdapter GetAdapater(IDbCommand iCmd) 
{ 
switch(this.DbType) 
{ 
case "SqlServer": 
return new System.Data.SqlClient.SqlDataAdapter((SqlCommand)iCmd); 

case "Oracle": 
return new System.Data.OracleClient.OracleDataAdapter((OracleCommand)iCmd); 

case "Access": 
return new System.Data.OleDb.OleDbDataAdapter((OleDbCommand)iCmd); 

default: 
return new System.Data.SqlClient.SqlDataAdapter((SqlCommand)iCmd); 
} 
} 
#endregion 

执行简单SQL语句#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 int ExecuteSql(string SqlString) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using (System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn)) 
{ 
iConn.Open(); 
try 
{ 

int rows=iCmd.ExecuteNonQuery(); 
return rows; 
} 
catch(System.Exception E) 
{ 
throw new Exception(E.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 

/**//// <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 void ExecuteSqlTran(ArrayList SQLStringList) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
using(System.Data.IDbCommand iCmd = GetCommand()) 
{ 
iCmd.Connection=iConn; 
using(System.Data.IDbTransaction iDbTran = iConn.BeginTransaction()) 
{ 
iCmd.Transaction=iDbTran; 
try 
{ 
for(int n=0;n<SQLStringList.Count;n++) 
{ 
string strsql = SQLStringList[n].ToString(); 
if ( strsql.Trim().Length>1) 
{ 
iCmd.CommandText = strsql; 
iCmd.ExecuteNonQuery(); 
} 
} 
iDbTran.Commit(); 
} 
catch(System.Exception E) 
{ 
iDbTran.Rollback(); 
throw new Exception(E.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.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 int ExecuteSql(string SqlString,string content) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn)) 
{ 
System.Data.IDataParameter myParameter = this.iDbPara( "@content", "Text"); 
myParameter.Value = content ; 
iCmd.Parameters.Add(myParameter); 
iConn.Open(); 
try 
{ 

int rows = iCmd.ExecuteNonQuery(); 
return rows; 
} 
catch( System.Exception e ) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.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 int ExecuteSqlInsertImg(string SqlString,byte[] fs) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn)) 
{ 
System.Data.IDataParameter myParameter = this.iDbPara( "@content", "Image"); 
myParameter.Value = fs ; 
iCmd.Parameters.Add(myParameter); 
iConn.Open(); 
try 
{ 
int rows = iCmd.ExecuteNonQuery(); 
return rows; 
} 
catch( System.Exception e ) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.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 object GetSingle(string SqlString) 
{ 
using (System.Data.IDbConnection iConn = GetConnection()) 
{ 
using (System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn)) 
{ 
iConn.Open(); 
try 
{ 
object obj = iCmd.ExecuteScalar(); 
if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value))) 
{ 
return null; 
} 
else 
{ 
return obj; 
} 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 
/**//// <summary> 
/// 执行查询语句，返回IDataAdapter 
/// </summary> 
/// <param name="strSQL">查询语句</param> 
/// <returns>IDataAdapter</returns> 
public IDataAdapter ExecuteReader(string strSQL) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
try 
{ 
System.Data.IDataAdapter iAdapter = this.GetAdapater(strSQL,iConn); 
return iAdapter; 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
/**//// <summary> 
/// 执行查询语句，返回DataSet 
/// </summary> 
/// <param name="SQLString">查询语句</param> 
/// <returns>DataSet</returns> 
public DataSet Query(string sqlString) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn)) 
{ 
DataSet ds = new DataSet(); 
iConn.Open(); 
try 
{ 
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn); 
iAdapter.Fill(ds); 
return ds; 
} 
catch(System.Exception ex) 
{ 
throw new Exception(ex.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 

/**//// <summary> 
/// 执行查询语句，返回DataSet 
/// </summary> 
/// <param name="sqlString">查询语句</param> 
/// <param name="dataSet">要填充的DataSet</param> 
/// <param name="tableName">要填充的表名</param> 
/// <returns>DataSet</returns> 
public DataSet Query(string sqlString,DataSet dataSet,string tableName) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn)) 
{ 
iConn.Open(); 
try 
{ 
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn); 
((OleDbDataAdapter)iAdapter).Fill(dataSet,tableName); 
return dataSet; 
} 
catch(System.Exception ex) 
{ 
throw new Exception(ex.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 


/**//// <summary> 
/// 执行SQL语句 返回存储过程 
/// </summary> 
/// <param name="sqlString">Sql语句</param> 
/// <param name="dataSet">要填充的DataSet</param> 
/// <param name="startIndex">开始记录</param> 
/// <param name="pageSize">页面记录大小</param> 
/// <param name="tableName">表名称</param> 
/// <returns>DataSet</returns> 
public DataSet Query(string sqlString , DataSet dataSet ,int startIndex ,int pageSize, string tableName ) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
try 
{ 
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn); 

((OleDbDataAdapter)iAdapter).Fill(dataSet,startIndex,pageSize,tableName); 

return dataSet; 
} 
catch(Exception ex) 
{ 
throw new Exception(ex.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 


/**//// <summary> 
/// 执行查询语句，向XML文件写入数据 
/// </summary> 
/// <param name="sqlString">查询语句</param> 
/// <param name="xmlPath">XML文件路径</param> 
public void WriteToXml(string sqlString,string xmlPath) 
{ 
Query(sqlString).WriteXml(xmlPath); 
} 

/**//// <summary> 
/// 执行查询语句 
/// </summary> 
/// <param name="SqlString">查询语句</param> 
/// <returns>DataTable </returns> 
public DataTable ExecuteQuery(string sqlString) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
//System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn); 
DataSet ds = new DataSet(); 
try 
{ 
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn); 
iAdapter.Fill(ds); 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
return ds.Tables[0]; 
} 
} 

/**//// <summary> 
/// 执行查询语句 
/// </summary> 
/// <param name="SqlString">查询语句</param> 
/// <returns>DataTable </returns> 
public DataTable ExecuteQuery(string SqlString,string Proc) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn)) 
{ 
iCmd.CommandType = CommandType.StoredProcedure; 
DataSet ds = new DataSet(); 
try 
{ 
System.Data.IDataAdapter iDataAdapter = this.GetAdapater(SqlString,iConn); 
iDataAdapter.Fill(ds); 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
return ds.Tables[0]; 
} 


} 
} 

/**//// <summary> 
/// 
/// </summary> 
/// <param name="Sql"></param> 
/// <returns></returns> 
public DataView ExeceuteDataView(string Sql) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
using(System.Data.IDbCommand iCmd = GetCommand(Sql,iConn)) 
{ 
DataSet ds = new DataSet(); 
try 
{ 
System.Data.IDataAdapter iDataAdapter = this.GetAdapater(Sql,iConn); 
iDataAdapter.Fill(ds); 
return ds.Tables[0].DefaultView; 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 

#endregion 

执行带参数的SQL语句#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 int ExecuteSql(string SQLString,params IDataParameter[] iParms) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
System.Data.IDbCommand iCmd = GetCommand(); 
{ 
try 
{ 
PrepareCommand(out iCmd, iConn, null , SQLString, iParms ); 
int rows=iCmd.ExecuteNonQuery(); 
iCmd.Parameters.Clear(); 
return rows; 
} 
catch(System.Exception E) 
{ 
throw new Exception( E.Message ); 
} 
finally 
{ 
iCmd.Dispose(); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 


/**//// <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 void ExecuteSqlTran(Hashtable SQLStringList) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
using (IDbTransaction iTrans = iConn.BeginTransaction()) 
{ 
System.Data.IDbCommand iCmd = GetCommand(); 
try 
{ 
//循环 
foreach ( DictionaryEntry myDE in SQLStringList) 
{ 
string cmdText = myDE.Key.ToString(); 
IDataParameter[] iParms=( IDataParameter[] ) myDE.Value; 
PrepareCommand( out iCmd , iConn , iTrans , cmdText , iParms ); 
int val = iCmd.ExecuteNonQuery(); 
iCmd.Parameters.Clear(); 
} 
iTrans.Commit(); 
} 
catch 
{ 
iTrans.Rollback(); 
throw; 
} 
finally 
{ 
iCmd.Dispose(); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.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 object GetSingle(string SQLString,params IDataParameter[] iParms) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
System.Data.IDbCommand iCmd = GetCommand(); 
{ 
try 
{ 
PrepareCommand( out iCmd, iConn, null , SQLString, iParms ); 
object obj = iCmd.ExecuteScalar(); 
iCmd.Parameters.Clear(); 
if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value))) 
{ 
return null; 
} 
else 
{ 
return obj; 
} 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
iCmd.Dispose(); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 

/**//// <summary> 
/// 执行查询语句，返回IDataReader 
/// </summary> 
/// <param name="strSQL">查询语句</param> 
/// <returns> IDataReader </returns> 
public IDataReader ExecuteReader(string SQLString,params IDataParameter[] iParms) 
{ 
System.Data.IDbConnection iConn = this.GetConnection(); 
{ 
System.Data.IDbCommand iCmd = GetCommand(); 
{ 
try 
{ 
PrepareCommand(out iCmd, iConn , null , SQLString , iParms); 
System.Data.IDataReader iReader = iCmd.ExecuteReader(); 
iCmd.Parameters.Clear(); 
return iReader; 
} 
catch(System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
finally 
{ 
iCmd.Dispose(); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 

/**//// <summary> 
/// 执行查询语句，返回DataSet 
/// </summary> 
/// <param name="SQLString">查询语句</param> 
/// <returns>DataSet</returns> 
public DataSet Query(string sqlString,params IDataParameter[] iParms) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
IDbCommand iCmd = GetCommand(); 
{ 
PrepareCommand(out iCmd , iConn , null , sqlString , iParms ); 
try 
{ 
IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn); 
DataSet ds = new DataSet(); 
iAdapter.Fill(ds); 
iCmd.Parameters.Clear(); 
return ds; 
} 
catch(System.Exception ex) 
{ 
throw new Exception(ex.Message); 
} 
finally 
{ 
iCmd.Dispose(); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 
} 
} 
} 


/**//// <summary> 
/// 初始化Command 
/// </summary> 
/// <param name="iCmd"></param> 
/// <param name="iConn"></param> 
/// <param name="iTrans"></param> 
/// <param name="cmdText"></param> 
/// <param name="iParms"></param> 
private void PrepareCommand(out IDbCommand iCmd,IDbConnection iConn,System.Data.IDbTransaction iTrans, string cmdText, IDataParameter[] iParms) 
{ 
if (iConn.State != ConnectionState.Open) 
iConn.Open(); 
iCmd = this.GetCommand(); 
iCmd.Connection = iConn; 
iCmd.CommandText = cmdText; 
if (iTrans != null) 
iCmd.Transaction = iTrans; 
iCmd.CommandType = CommandType.Text;//cmdType; 
if (iParms != null) 
{ 
foreach (IDataParameter parm in iParms) 
iCmd.Parameters.Add(parm); 
} 
} 

#endregion 

存储过程操作#region 存储过程操作 

/**//// <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> 
/// <returns>SqlDataReader</returns> 
public SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters ) 
{ 
System.Data.IDbConnection iConn = this.GetConnection(); 
{ 
iConn.Open(); 

using(SqlCommand sqlCmd = BuildQueryCommand(iConn,storedProcName, parameters)) 
{ 
return sqlCmd.ExecuteReader(CommandBehavior.CloseConnection); 
} 
} 
} 

/**//// <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 DataSet RunProcedure(string storedProcName, IDataParameter[] parameters ,string tableName) 
{ 

using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
DataSet dataSet = new DataSet(); 
iConn.Open(); 
System.Data.IDataAdapter iDA = this.GetAdapater(); 
iDA = this.GetAdapater( BuildQueryCommand(iConn, storedProcName, parameters ) ); 

((SqlDataAdapter)iDA).Fill( dataSet,tableName); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
return dataSet; 
} 
} 



/**//// <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> 
/// <param name="startIndex">开始记录索引</param> 
/// <param name="pageSize">页面记录大小</param> 
/// <returns>DataSet</returns> 
public DataSet RunProcedure(string storedProcName, IDataParameter[] parameters ,int startIndex,int pageSize,string tableName) 
{ 

using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
DataSet dataSet = new DataSet(); 
iConn.Open(); 
System.Data.IDataAdapter iDA = this.GetAdapater(); 
iDA = this.GetAdapater( BuildQueryCommand(iConn, storedProcName, parameters ) ); 

((SqlDataAdapter)iDA).Fill( dataSet,startIndex,pageSize,tableName); 
if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
return dataSet; 
} 
} 

/**//// <summary> 
/// 执行存储过程 填充已经存在的DataSet数据集 
/// </summary> 
/// <param name="storeProcName">存储过程名称</param> 
/// <param name="parameters">存储过程参数</param> 
/// <param name="dataSet">要填充的数据集</param> 
/// <param name="tablename">要填充的表名</param> 
/// <returns></returns> 
public DataSet RunProcedure(string storeProcName,IDataParameter[] parameters,DataSet dataSet,string tableName) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
System.Data.IDataAdapter iDA = this.GetAdapater(); 
iDA = this.GetAdapater(BuildQueryCommand(iConn,storeProcName,parameters)); 

((SqlDataAdapter)iDA).Fill(dataSet,tableName); 

if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 

return dataSet; 
} 
} 

/**//// <summary> 
/// 执行存储过程并返回受影响的行数 
/// </summary> 
/// <param name="storedProcName"></param> 
/// <param name="parameters"></param> 
/// <returns></returns> 
public int RunProcedureNoQuery(string storedProcName, IDataParameter[] parameters ) 
{ 

int result = 0; 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
iConn.Open(); 
using(SqlCommand scmd = BuildQueryCommand(iConn,storedProcName,parameters)) 
{ 
result = scmd.ExecuteNonQuery(); 
} 

if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 
} 

return result ; 
} 

public string RunProcedureExecuteScalar(string storeProcName,IDataParameter[] parameters) 
{ 
string result = string.Empty; 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 

iConn.Open(); 
using(SqlCommand scmd = BuildQueryCommand(iConn,storeProcName,parameters)) 
{ 
object obj = scmd.ExecuteScalar(); 
if(obj == null) 
result = null; 
else 
result = obj.ToString(); 
} 

if(iConn.State != ConnectionState.Closed) 
{ 
iConn.Close(); 
} 

} 

return result; 
} 

/**//// <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 SqlCommand BuildQueryCommand(IDbConnection iConn,string storedProcName, IDataParameter[] parameters) 
{ 

IDbCommand iCmd = GetCommand(storedProcName,iConn); 
iCmd.CommandType = CommandType.StoredProcedure; 
if (parameters == null) 
{ 
return (SqlCommand)iCmd; 
} 
foreach (IDataParameter parameter in parameters) 
{ 
iCmd.Parameters.Add( parameter ); 
} 
return (SqlCommand)iCmd; 
} 

/**//// <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 int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected ) 
{ 
using (System.Data.IDbConnection iConn = this.GetConnection()) 
{ 
int result; 
iConn.Open(); 
using(SqlCommand sqlCmd = BuildIntCommand(iConn,storedProcName, parameters )) 
{ 
rowsAffected = sqlCmd.ExecuteNonQuery(); 
result = (int)sqlCmd.Parameters["ReturnValue"].Value; 

if(iConn.State != ConnectionState.Closed) 
{ 
iConn.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 SqlCommand BuildIntCommand(IDbConnection iConn,string storedProcName, IDataParameter[] parameters) 
{ 
SqlCommand sqlCmd = BuildQueryCommand(iConn,storedProcName, parameters ); 
sqlCmd.Parameters.Add( new SqlParameter ( "ReturnValue", 
SqlDbType.Int,4,ParameterDirection.ReturnValue, 
false,0,0,string.Empty,DataRowVersion.Default,null )); 
return sqlCmd; 
} 
#endregion 


} 
}