836
為ASP.NET封裝的SQL數據庫訪問類
usingSystem;
usingSystem.Configuration;
usingSystem.Data;
usingSystem.Data.SqlClient;
usingSystem.Collections;
namespaceMyCorporation.DepartMent.DataBase
{
///<summary>
///通用數據庫類
///</summary>
publicclassDataBase
{
privatestringConnStr=null;
publicDataBase()
{
ConnStr=ConfigurationSettings.AppSettings["ConnStr"];
}
publicDataBase(stringStr)
{
try
{
this.ConnStr=Str;
}
catch(Exceptionex)
{
throwex;
}
}
///<summary>
///返回connection對象
///</summary>
///<returns></returns>
publicSqlConnectionReturnConn()
{
SqlConnectionConn=newSqlConnection(ConnStr);
Conn.Open();
returnConn;
}
publicvoidDispose(SqlConnectionConn)
{
if(Conn!=null)
{
Conn.Close();
Conn.Dispose();
}
GC.Collect();
}
///<summary>
///運行SQL語句
///</summary>
///<paramname="SQL"></param>
publicvoidRunProc(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlCommandCmd;
Cmd=CreateCmd(SQL,Conn);
try
{
Cmd.ExecuteNonQuery();
}
catch
{
thrownewException(SQL);
}
Dispose(Conn);
return;
}
///<summary>
///運行SQL語句返回DataReader
///</summary>
///<paramname="SQL"></param>
///<returns>SqlDataReader對象.</returns>
publicSqlDataReaderRunProcGetReader(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlCommandCmd;
Cmd=CreateCmd(SQL,Conn);
SqlDataReaderDr;
try
{
Dr=Cmd.ExecuteReader(CommandBehavior.Default);
}
catch
{
thrownewException(SQL);
}
//Dispose(Conn);
returnDr;
}
///<summary>
///生成Command對象
///</summary>
///<paramname="SQL"></param>
///<paramname="Conn"></param>
///<returns></returns>
publicSqlCommandCreateCmd(stringSQL,SqlConnectionConn)
{
SqlCommandCmd;
Cmd=newSqlCommand(SQL,Conn);
returnCmd;
}
///<summary>
///生成Command對象
///</summary>
///<paramname="SQL"></param>
///<returns></returns>
publicSqlCommandCreateCmd(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlCommandCmd;
Cmd=newSqlCommand(SQL,Conn);
returnCmd;
}
///<summary>
///返回adapter對象
///</summary>
///<paramname="SQL"></param>
///<paramname="Conn"></param>
///<returns></returns>
publicSqlDataAdapterCreateDa(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlDataAdapterDa;
Da=newSqlDataAdapter(SQL,Conn);
returnDa;
}
///<summary>
///運行SQL語句,返回DataSet對象
///</summary>
///<paramname="procName">SQL語句</param>
///<paramname="prams">DataSet對象</param>
publicDataSetRunProc(stringSQL,DataSetDs)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlDataAdapterDa;
//Da=CreateDa(SQL,Conn);
Da=newSqlDataAdapter(SQL,Conn);
try
{
Da.Fill(Ds);
}
catch(ExceptionErr)
{
throwErr;
}
Dispose(Conn);
returnDs;
}
///<summary>
///運行SQL語句,返回DataSet對象
///</summary>
///<paramname="procName">SQL語句</param>
///<paramname="prams">DataSet對象</param>
///<paramname="dataReader">表名</param>
publicDataSetRunProc(stringSQL,DataSetDs,stringtablename)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlDataAdapterDa;
Da=CreateDa(SQL);
try
{
Da.Fill(Ds,tablename);
}
catch(ExceptionEx)
{
throwEx;
}
Dispose(Conn);
returnDs;
}
///<summary>
///運行SQL語句,返回DataSet對象
///</summary>
///<paramname="procName">SQL語句</param>
///<paramname="prams">DataSet對象</param>
///<paramname="dataReader">表名</param>
publicDataSetRunProc(stringSQL,DataSetDs,intStartIndex,intPageSize,stringtablename)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlDataAdapterDa;
Da=CreateDa(SQL);
try
{
Da.Fill(Ds,StartIndex,PageSize,tablename);
}
catch(ExceptionEx)
{
throwEx;
}
Dispose(Conn);
returnDs;
}
///<summary>
///檢驗是否存在數據
///</summary>
///<returns></returns>
publicboolExistDate(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlDataReaderDr;
Dr=CreateCmd(SQL,Conn).ExecuteReader();
if(Dr.Read())
{
Dispose(Conn);
returntrue;
}
else
{
Dispose(Conn);
returnfalse;
}
}
///<summary>
///返回SQL語句執行結果的第一行第一列
///</summary>
///<returns>字符串</returns>
publicstringReturnValue(stringSQL)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
stringresult;
SqlDataReaderDr;
try
{
Dr=CreateCmd(SQL,Conn).ExecuteReader();
if(Dr.Read())
{
result=Dr[0].ToString();
Dr.Close();
}
else
{
result="";
Dr.Close();
}
}
catch
{
thrownewException(SQL);
}
Dispose(Conn);
returnresult;
}
///<summary>
///返回SQL語句第一列,第ColumnI列,
///</summary>
///<returns>字符串</returns>
publicstringReturnValue(stringSQL,intColumnI)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
stringresult;
SqlDataReaderDr;
try
{
Dr=CreateCmd(SQL,Conn).ExecuteReader();
}
catch
{
thrownewException(SQL);
}
if(Dr.Read())
{
result=Dr[ColumnI].ToString();
}
else
{
result="";
}
Dr.Close();
Dispose(Conn);
returnresult;
}
///<summary>
///生成一個存儲過程使用的sqlcommand.
///</summary>
///<paramname="procName">存儲過程名.</param>
///<paramname="prams">存儲過程入參數組.</param>
///<returns>sqlcommand對象.</returns>
publicSqlCommandCreateCmd(stringprocName,SqlParameter[]prams)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlCommandCmd=newSqlCommand(procName,Conn);
Cmd.CommandType=CommandType.StoredProcedure;
if(prams!=null)
{
foreach(SqlParameterparameterinprams)
{
if(parameter!=null)
{
Cmd.Parameters.Add(parameter);
}
}
}
returnCmd;
}
///<summary>
///為存儲過程生成一個SqlCommand對象
///</summary>
///<paramname="procName">存儲過程名</param>
///<paramname="prams">存儲過程參數</param>
///<returns>SqlCommand對象</returns>
privateSqlCommandCreateCmd(stringprocName,SqlParameter[]prams,SqlDataReaderDr)
{
SqlConnectionConn;
Conn=newSqlConnection(ConnStr);
Conn.Open();
SqlCommandCmd=newSqlCommand(procName,Conn);
Cmd.CommandType=CommandType.StoredProcedure;
if(prams!=null)
{
foreach(SqlParameterparameterinprams)
Cmd.Parameters.Add(parameter);
}
Cmd.Parameters.Add(
newSqlParameter("ReturnValue",SqlDbType.Int,4,
ParameterDirection.ReturnValue,false,0,0,
string.Empty,DataRowVersion.Default,null));
returnCmd;
}
///<summary>
///運行存儲過程,返回.
///</summary>
///<paramname="procName">存儲過程名</param>
///<paramname="prams">存儲過程參數</param>
///<paramname="dataReader">SqlDataReader對象</param>
publicvoidRunProc(stringprocName,SqlParameter[]prams,SqlDataReaderDr)
{
SqlCommandCmd=CreateCmd(procName,prams,Dr);
Dr=Cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
return;
}
///<summary>
///運行存儲過程,返回.
///</summary>
///<paramname="procName">存儲過程名</param>
///<paramname="prams">存儲過程參數</param>
publicstringRunProc(stringprocName,SqlParameter[]prams)
{
SqlDataReaderDr;
SqlCommandCmd=CreateCmd(procName,prams);
Dr=Cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
if(Dr.Read())
{
returnDr.GetValue(0).ToString();
}
else
{
return"";
}
}
///<summary>
///運行存儲過程,返回dataset.
///</summary>
///<paramname="procName">存儲過程名.</param>
///<paramname="prams">存儲過程入參數組.</param>
///<returns>dataset對象.</returns>
publicDataSetRunProc(stringprocName,SqlParameter[]prams,DataSetDs)
{
SqlCommandCmd=CreateCmd(procName,prams);
SqlDataAdapterDa=newSqlDataAdapter(Cmd);
try
{
Da.Fill(Ds);
}
catch(ExceptionEx)
{
throwEx;
}
returnDs;
}
}
}
最後更新：2017-04-02 00:06:36