关于存储过程的SqlHelper

代码

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Web;
using  System.Data;
using  System.Data.SqlClient;

namespace  SqlHelpserDemo
{
     public   class  SQLHelper_PROC
    {
         private   static   string  connectionString  =   " server=.;uid=sa;pwd=123456;database=db_10 " ;          
         private   static  SqlConnection sqlConn;           
         ///   < summary>           
         ///            
         ///   < /summary>           
         ///   < param name="sql">< /param>           
         ///   < returns>< /returns>           
         ///  
         public   static  SqlDataReader GetDataReader( string  sql)          {              
             try              {                  
                sqlConn  =   new  SqlConnection(connectionString);                  
                sqlConn.Open();                 
                SqlCommand sqlCmd  =   new  SqlCommand(sql,sqlConn);                  
                SqlDataReader sqlDr  =                        
                sqlCmd.ExecuteReader(CommandBehavior.CloseConnection);                  
                 return  sqlDr;               
            } catch  (SqlException ex){                  
                 throw  ex;              
            }                      
        }           
         public   static   object  ExecScalar( string  sql){              
             try {                  
                sqlConn  =   new  SqlConnection(connectionString);                  
                sqlConn.Open();                  
                SqlCommand sqlCmd  =   new  SqlCommand(sql, sqlConn);                  
                 object  obj  =                       
                sqlCmd.ExecuteScalar();                  
                 return  obj;               
            } catch  (SqlException ex){                  
                 throw  ex;              
            } finally {                 
                sqlConn.Close();             
            }           
        }           
         ///   < summary>           
         ///  ASP.NET数据库驱动类：执行带参的命令式的存储过程          
         ///   < /summary>          
         ///   < param name="procName"> 存储过程名称 < /param>           
         ///   < param name="paras"> 为存储过程的参数解决赋参的SqlParameter对象数组          
         ///  (每一个SqlParameter对象为一个参数解决赋参) < /param>           
         ///   < returns> 存储过程的返回值 < /returns>           
         public   static   int  ExecuteProc1( string  procName,              
            SqlParameter[] paras){              
             try {                  
                sqlConn  =   new  SqlConnection(connectionString);                  
                sqlConn.Open();                  
                SqlCommand sqlCmd  =   new  SqlCommand(procName, sqlConn);                   // 执行存储过程类型                  
                sqlCmd.CommandType  =  CommandType.StoredProcedure;                  
                sqlCmd.Parameters.AddRange(paras);                   
                SqlParameter p  =   new  SqlParameter();                   // 取存储过程的返回值                  
                p.Direction  =  ParameterDirection.ReturnValue;                  
                p.SqlDbType  =  SqlDbType.Int;                   
                sqlCmd.Parameters.Add(p);                 
                sqlCmd.ExecuteNonQuery();                   
                 int  v  =  p.Value == null ?- 1 :Convert.ToInt32(p.Value);                  
                 return  v;                           
            } catch  (SqlException ex){                  
                 throw  ex;              
            } finally {                  
                sqlConn.Close();              
            }          
        }           
         ///   < summary>           
         ///  ASP.NET数据库驱动类：执行带参的查询式的存储过程          
         ///   < /summary>           
         ///   < param name="procName"> 存储过程名称 < /param>           
         ///   < param name="paras"> 为存储过程的参数解决赋参的SqlParameter对象数组          
         ///  (每一个SqlParameter对象为一个参数解决赋参) < /param>           
         ///   < returns> 存储过程执行完毕后如果在数据库服务器端形成一个          
         ///  查询结果集，则返回指向该结果集的一个数据读取器对象 < /returns>           
         public   static  SqlDataReader ExecuteProc2( string  procName, SqlParameter[] paras)
        {
             try
            {
                sqlConn  =   new  SqlConnection(connectionString);
                sqlConn.Open();
                SqlCommand sqlCmd  =   new  SqlCommand(procName, sqlConn);                   // 执行存储过程类型                  
                sqlCmd.CommandType  =  CommandType.StoredProcedure;
                sqlCmd.Parameters.AddRange(paras);
                SqlDataReader sqlDr  =  sqlCmd.ExecuteReader(CommandBehavior.CloseConnection);
                 return  sqlDr;
            }
             catch  (SqlException ex)
            {
                 throw  ex;
            }
        }      

    }
}

 

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