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C#

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/**********************************************
* 类作用: 数据库操作类
* 创建人: 办公协同
* 创建时间: 2008/12/30
* 版本: 0.50
***********************************************/
using System;
using System.Collections.Generic;
using System.Collections;
//using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Data.Common;
using System.Configuration;
using System.Security;
using Data;
using System.Web;
using Common;
// Version 0.5.0
// Author: 办公协同
// Date: 2008-12-30
namespace Data.DBHelper
{
/// <summary>
/// SQL 辅助类
/// </summary>
/// <example>
/// 以下是使用 SqlHelper 的一个示例:
/// <code>
/// SqlHelper.ExecuteSql( "Select * From MyTable" ); //执行 SQL 语句
/// repeater1.DataSource = SqlHelper.Result.DataTable; //得到结果
/// repeater1.DataBind();
/// </code>
/// </example>
/// <remarks>
///
/// SqlHelper 是一个对 .NET Sql 数据库操作的封装类,它使用外部配置文件指示连接字符串。
///
/// 在使用之前,应该先在 web.config (Web 项目) 或 app.config (Application 项目)中配置 SqlConnection 节,例如:
///
/// <connectionStrings>
/// <add name="ConnectionString" connectionString="Data Source=.;Initial Catalog=devtest;persist security info=False;user id=sa;pwd=123456;" providerName="System.Data.SqlClient"/>
/// </connectionStrings>
///
/// 要执行 SQL 存储过程请使用 Execute() 函数。
///
/// 若仅执行SQL语句则使用 ExecuteSql() 函数。
///
/// SqlHelper 提供了创建普通参数的便捷方式,使用 GetParameter() 能得到一个普通参数的实例,使用 GetReturnValueParameter() 函数
/// 能得到一个返回值类型的参数,使用 GetOutputParameter() 函数能得到一个输出参数。
///
/// Result 是每次执行 Execute 或者 ExecuteSql() 函数的结果。这两个函数每执行一次Result 都会被更新为最近一次执行的结果。
///
/// </remarks>
public class SqlHelper
{
//数据库连接语句
private static string _connectionString_inner = string.Empty;
private static string _connectionString_inner2 = string.Empty;
private static string _connectionString
{
get {
if (_connectionString_inner == string.Empty)
{
//_connectionString_inner = ConfigurationManager.ConnectionStrings["connectionString"].ToString();
_connectionString_inner = ConfigurationManager.ConnectionStrings["SqlConnectionString"].ToString();
if (ConfigurationManager.AppSettings["enableEncryptConnectionString"] == "1")
{
_connectionString_inner = SecurityUtil.DecryptDES(_connectionString_inner);
}
}
return _connectionString_inner;
}
set {
_connectionString_inner = value;
}
}
private static string _connectionString2
{
get
{
if (_connectionString_inner2 == string.Empty)
{
//_connectionString_inner = ConfigurationManager.ConnectionStrings["connectionString"].ToString();
_connectionString_inner2 = ConfigurationManager.ConnectionStrings["DongShengDB"].ToString();
if (ConfigurationManager.AppSettings["enableEncryptConnectionString"] == "1")
{
_connectionString_inner2 = SecurityUtil.DecryptDES(_connectionString_inner);
}
}
return _connectionString_inner2;
}
set
{
_connectionString_inner2 = value;
}
}
/*数据库连接语句*/
public static string _connectionStringStr
{
get
{
if (_connectionString_inner == string.Empty)
{
_connectionString_inner = ConfigurationManager.ConnectionStrings["connectionString"].ToString();
if (ConfigurationManager.AppSettings["enableEncryptConnectionString"] == "1")
{
_connectionString_inner = SecurityUtil.DecryptDES(_connectionString_inner);
}
}
return _connectionString_inner;
}
set
{
_connectionString_inner = value;
}
}
//直接获得数据库连接串的方法
public static String GetConnection()
{
return DecryptPassword(ConfigurationManager.ConnectionStrings["connectionString"].ToString());
}
/// <summary>
/// 根据模块名称获得连接串的方法
/// </summary>
/// <param name="module">模块名称</param>
/// <returns>返回相应连接串</returns>
public static String GetConnection(string userDba)
{
switch (userDba)
{
case "officedba"://办公模式
return DecryptPassword(ConfigurationManager.ConnectionStrings["connectionString"].ToString());
case "pubdba"://运营模式
return DecryptPassword(ConfigurationManager.ConnectionStrings["PubdbaConn"].ToString());
case "statdba"://决策模式
return DecryptPassword(ConfigurationManager.ConnectionStrings["StatdbaConn"].ToString());
case "konowdba"://知识中心
return DecryptPassword(ConfigurationManager.ConnectionStrings["KonowdbaConn"].ToString());
case "infodba"://信息中心
return DecryptPassword(ConfigurationManager.ConnectionStrings["InfodbaConn"].ToString());
default://默认办公模式
return DecryptPassword(ConfigurationManager.ConnectionStrings["connectionString"].ToString());
}
}
//解密登录数据库密码
public static String DecryptPassword(string connString)
{
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(connString);
string PassWord = SecurityUtil.DecryptDES(builder.Password);
builder.Password = PassWord;
return builder.ConnectionString;
}
//初始化返回结果
private static Utility.Result _result = new Data.DBHelper.Utility.Result()
{
DataTable = new DataTable(),//数据集合
ErrorMessage = string.Empty,//错误信息
HasError = false,//有否错误标志
Parameters = null,//参数集
OprateCount = 0
};
public static DBHelper.Utility.Result Result
{
get { return _result; }
}
/// <summary>
/// 创建普通参数
/// </summary>
/// <param name="parameterName">参数名称</param>
/// <param name="value">值</param>
/// <returns></returns>
public static SqlParameter GetParameter(string parameterName, string value)
{
return new SqlParameter(parameterName, value);
}
public static SqlParameter GetParameter(string parameterName, int value)
{
SqlParameter a= new SqlParameter(parameterName,SqlDbType.Int,4);
a.Value=value;
return a;
}
public static SqlParameter GetParameter(string parameterName, bool value)
{
SqlParameter a= new SqlParameter(parameterName,SqlDbType.Bit,1);
a.Value=value;
return a;
}
public static SqlParameter GetParameter(string parameterName, DateTime value)
{
SqlParameter a= new SqlParameter(parameterName,SqlDbType.DateTime,1);
a.Value=value;
return a;
}
public static SqlParameter GetParameter(string parameterName, double value)
{
SqlParameter a= new SqlParameter(parameterName,SqlDbType.Decimal,20);
a.Value=value;
return a;
}
/// <summary>
/// 创建参数
/// </summary>
/// <param name="parameterName">参数名称</param>
/// <param name="value">值</param>
/// <returns></returns>
public static SqlParameter GetParameterFromString(string parameterName, string value)
{
if (string.IsNullOrEmpty(value))
return new SqlParameter(parameterName, DBNull.Value);
else
return new SqlParameter(parameterName, value);
}
#region 带事务操作的方法
/// <summary>
/// 准备一个可以执行的Sql命令对象。
/// </summary>
/// <param name="cmd">命令对象</param>
/// <param name="conn">连接对象</param>
/// <param name="trans">事务对象</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdText">命令文本</param>
/// <param name="cmdParms">参数列表</param>
private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, CommandType cmdType, string cmdText, SqlParameter[] cmdParms)
{
if (conn.State != ConnectionState.Open)
conn.Open();
cmd.Connection = conn;
cmd.CommandText = cmdText;
if (trans != null)
cmd.Transaction = trans;
cmd.CommandType = cmdType;
if (cmdParms != null)
{
foreach (SqlParameter parm in cmdParms)
cmd.Parameters.Add(parm);
}
}
/// <summary>
/// 执行一个sql命令仅仅返回数据库受影响行数。(用于需要事务的情况)
/// 所需参数:事务对象,命令类型,命令文本,参数列表。
/// </summary>
/// <param name="trans">事务对象</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdText">命令文本</param>
/// <param name="cmdParms">参数列表</param>
/// <returns>数据库受影响行数</returns>
public static int ExecuteNonQuery(SqlTransaction trans, CommandType cmdType, string cmdText, params SqlParameter[] cmdParms)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, trans.Connection, trans, cmdType, cmdText, cmdParms);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
// trans.Connection.Close();
return val;
}
#endregion
/// <summary>
/// 创建返回值参数
/// </summary>
/// <param name="parameterName">参数名称</param>
/// <returns>创建的参数对象</returns>
public static SqlParameter GetReturnValueParameter(string parameterName, SqlDbType dbType)
{
return new SqlParameter(parameterName, dbType) { Direction = ParameterDirection.ReturnValue };
}
/// <summary>
/// 创建输出参数
/// </summary>
/// <param name="parameterName">参数名称</param>
/// <param name="dbType">参数值类型</param>
/// <returns>创建的参数对象</returns>
public static SqlParameter GetOutputParameter(string parameterName, SqlDbType dbType)
{
return new SqlParameter(parameterName, dbType) { Direction = ParameterDirection.Output };
}
/// <summary>
/// 获得前一次查询的结果集
/// </summary>
/// <returns>前一次查询的结果集DataTable</returns>
public static DataTable GetPreData()
{
return _result.DataTable;
}
/// <summary>
/// 执行存储过程(无输出参数)
/// </summary>
/// <param name="storedProcedureName">存储过程名</param>
/// <param name="p">参数(允许0个或者0个以上)</param>
public static DataTable ExecuteStoredProcedure(string storedProcedureName, params SqlParameter[] p)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = storedProcedureName,
CommandType = CommandType.StoredProcedure
};
return ExecuteSearch(comm, p);
}
/// <summary>
/// 执行存储过程(无输出参数)
/// </summary>
/// <param name="storedProcedureName">存储过程名</param>
/// <param name="paramList">SqlParameter参数list</param>
public static DataTable ExecuteStoredProcedure(string storedProcedureName, ArrayList paramList)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = storedProcedureName,
CommandType = CommandType.StoredProcedure
};
SqlParameter[] p = null;
if (paramList != null && paramList.Count > 0)
{
p = new SqlParameter[paramList.Count];
for (int i = 0; i < paramList.Count; i++)
{
p[i] = (SqlParameter)paramList[i];
}
}
return ExecuteSearch(comm, p);
}
/// <summary>
/// 执行Sql返回Dependency对象 added by
/// </summary>
/// <param name="sql">sql语句</param>
/// <param name="Dependency">Dependency对象</param>
/// <param name="parms">参数</param>
/// <returns>DataTable</returns>
public static DataTable ExecuteSqlDependency(string sql,
ref System.Web.Caching.SqlCacheDependency Dependency, params SqlParameter[] parms)
{
SqlDependency.Start(_connectionString);
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlCommand comm = new SqlCommand();
//设置参数
if (parms != null && parms.Length > 0)
{
foreach (SqlParameter item in parms)
comm.Parameters.Add(item);
}
comm.CommandText = sql;
System.Web.Caching.SqlCacheDependency dependency =
new System.Web.Caching.SqlCacheDependency(comm);
Dependency = dependency;
comm.Connection = conn;
SqlDataAdapter da = new SqlDataAdapter(comm);
try
{
//填充数据
da.Fill(_result.DataTable);
//设置查询参数
_result.Parameters = comm.Parameters;
//设置Error标志
_result.HasError = false;
}
catch (Exception e)
{
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置查询信息为空DataTable
_result.DataTable = new DataTable();
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return _result.DataTable;
}
/// <summary>
/// 执行聚会函数 added by jiangym
/// </summary>
/// <param name="comm"></param>
/// <param name="parms"></param>
/// <returns></returns>
public static object ExecuteScalar(string sql, params SqlParameter[] p)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
object obj = null;
SqlCommand comm = new SqlCommand();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
comm.Connection = conn;
//打开连接
conn.Open();
comm.CommandText = sql;
obj = comm.ExecuteScalar();
try
{
//设置查询参数
_result.Parameters = comm.Parameters;
//设置Error标志
_result.HasError = false;
}
catch (Exception e)
{
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return obj;
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="comm">执行的命令</param>
/// <param name="p">参数集</param>
/// <returns>查询的结果集</returns>
private static DataTable ExecuteSearch(SqlCommand comm, params SqlParameter[] p)
{
//获得返回集实例
//_result = Utility.Result.GetInstance();
DataTable dt = new DataTable();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
{
comm.Parameters.Add(item);
}
}
comm.Connection = conn;
//System.Windows.Forms.MessageBox.Show(comm.CommandText.ToString());
SqlDataAdapter da = new SqlDataAdapter(comm);
//try
//{
//填充数据
da.Fill(dt);
//设置查询参数
// _result.Parameters = comm.Parameters;
//设置Error标志
// _result.HasError = false;
//}
//catch (Exception e)
//{
// ////设置Error标志
// //_result.HasError = true;
// ////设置Error信息
// //_result.ErrorMessage = e.Message;
// ////设置查询信息为空DataTable
// //_result.DataTable = new DataTable();
// throw e;
//}
//finally
//{
// //连接打开时,关闭连接
// if (conn != null)
// {
// conn.Close();
// }
//}
conn.Close();
}
//System.Windows.Forms.MessageBox.Show(comm.CommandText.ToString());
return dt;
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="comm">执行的命令</param>
/// <param name="p">参数集</param>
/// <returns>查询的结果集</returns>
private static DataTable ExecuteSearch2(SqlCommand comm, params SqlParameter[] p)
{
//获得返回集实例
//_result = Utility.Result.GetInstance();
DataTable dt = new DataTable();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString2))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
{
comm.Parameters.Add(item);
}
}
comm.Connection = conn;
//System.Windows.Forms.MessageBox.Show(comm.CommandText.ToString());
SqlDataAdapter da = new SqlDataAdapter(comm);
//try
//{
//填充数据
da.Fill(dt);
//设置查询参数
// _result.Parameters = comm.Parameters;
//设置Error标志
// _result.HasError = false;
//}
//catch (Exception e)
//{
// ////设置Error标志
// //_result.HasError = true;
// ////设置Error信息
// //_result.ErrorMessage = e.Message;
// ////设置查询信息为空DataTable
// //_result.DataTable = new DataTable();
// throw e;
//}
//finally
//{
// //连接打开时,关闭连接
// if (conn != null)
// {
// conn.Close();
// }
//}
conn.Close();
}
//System.Windows.Forms.MessageBox.Show(comm.CommandText.ToString());
return dt;
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="comm">执行的命令</param>
/// <param name="p">参数集</param>
/// <returns>查询的结果集</returns>
public static DataTable ExecuteSearch(SqlCommand comm)
{
//获得返回集实例
DataTable result = new DataTable();
// _result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
comm.Connection = conn;
SqlDataAdapter da = new SqlDataAdapter(comm);
//try
//{
//填充数据
da.Fill(result);
//}
//catch (Exception e)
// {
// throw e;
// }
// finally
// {
//连接打开时,关闭连接
// if (conn != null)
// {
// conn.Close();
// }
//}
conn.Close();
}
return result;
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="sql">SQL 语句</param>
/// <param name="paramList">SqlParameter参数集</param>
/// <returns></returns>
public static DataTable ExecuteSql(string sql, ArrayList paramList)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql
};
SqlParameter[] p = null;
if (paramList != null && paramList.Count > 0)
{
p = new SqlParameter[paramList.Count];
for (int i = 0; i < paramList.Count; i++)
{
p[i] = (SqlParameter)paramList[i];
}
}
return ExecuteSearch(comm, p);
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="sql">SQL 语句</param>
/// <param name="p">参数集</param>
/// <returns></returns>
public static DataTable ExecuteSql(string sql, params SqlParameter[] p)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql
};
return ExecuteSearch(comm, p);
}
public static DataTable ExecuteSql2(string sql, params SqlParameter[] p)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql
};
return ExecuteSearch2(comm, p);
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="sql">SQL 语句</param>
/// <param name="p">参数集</param>
/// <returns></returns>
public static DataTable ExecuteSql(string sql)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql//SQL语句
};
return ExecuteSearch(comm, null);
}
/// <summary>
/// 执行数据库操作
/// </summary>
/// <param name="comm">执行的命令</param>
/// <param name="p">参数集</param>
/// <returns>操作的记录数</returns>
private static int ExecuteTrans(SqlCommand comm, params SqlParameter[] p)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
comm.Parameters.Clear();
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
//设置命令数据库连接
comm.Connection = conn;
//打开连接
conn.Open();
try
{
//设置事务
comm.Transaction = conn.BeginTransaction();
//执行数据库操作
_result.OprateCount = comm.ExecuteNonQuery();
//提交事务
comm.Transaction.Commit();
//设置查询参数
_result.Parameters = comm.Parameters;
//设置Error标志
_result.HasError = false;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (comm.Transaction != null)
{
comm.Transaction.Rollback();
}
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置影响记录数为0
_result.OprateCount = 0;
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return _result.OprateCount;
}
/// <summary>
/// 执行存储过程
/// </summary>
/// <param name="storedProcedureName">存储过程名</param>
/// <param name="p">参数集</param>
/// <returns>操作的记录数</returns>
public static int ExecuteTransStoredProcedure(string storedProcedureName, params SqlParameter[] p)
{
//创建命令
SqlCommand comm = new SqlCommand() { CommandText = storedProcedureName, CommandType = CommandType.StoredProcedure };
return ExecuteTrans(comm, p);
}
/// <summary>
/// 执行存储过程
/// </summary>
/// <param name="storedProcedureName">存储过程名</param>
/// <param name="comm">命令</param>
/// <param name="p">参数集</param>
/// <returns>操作的记录数</returns>
public static int ExecuteTransStoredProcedure(string storedProcedureName, SqlCommand comm, params SqlParameter[] p)
{
comm.CommandText = storedProcedureName;
comm.CommandType = CommandType.StoredProcedure;
return ExecuteTrans(comm, p);
}
/// <summary>
/// 执行存储过程
/// </summary>
/// <param name="storedProcedureName">存储过程名</param>
/// <param name="paramList">SqlParameter参数集</param>
/// <returns>操作的记录数</returns>
public static int ExecuteTransStoredProcedure(string storedProcedureName, ArrayList paramList)
{
//创建命令
SqlCommand comm = new SqlCommand() { CommandText = storedProcedureName, CommandType = CommandType.StoredProcedure };
SqlParameter[] p = null;
if (paramList != null && paramList.Count > 0)
{
p = new SqlParameter[paramList.Count];
for (int i = 0; i < paramList.Count; i++)
{
p[i] = (SqlParameter)paramList[i];
}
}
return ExecuteTrans(comm, p);
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="sql">SQL 语句</param>
/// <param name="p">参数集</param>
/// <returns>操作的记录数</returns>
public static int ExecuteTransSql(string sql, params SqlParameter[] p)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql//SQL语句
};
return ExecuteTrans(comm, p);
}
/// <summary>
/// 执行 SQL 语句
/// </summary>
/// <param name="sql">SQL 语句</param>
/// <param name="paramList">SqlParameter参数集</param>
/// <returns>操作的记录数</returns>
public static int ExecuteTransSql(string sql, ArrayList paramList)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sql//SQL语句
};
SqlParameter[] p = null;
if (paramList != null && paramList.Count > 0)
{
p = new SqlParameter[paramList.Count];
for (int i = 0; i < paramList.Count; i++)
{
p[i] = (SqlParameter)paramList[i];
}
}
return ExecuteTrans(comm, p);
}
/// <summary>
/// 更新或者登陆多条数据
/// </summary>
/// <param name="sql">命令集</param>
/// <returns>操作的记录数</returns>
public static bool ExecuteTransForListWithSQL(string[] sql)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlTransaction transaction = null;
try
{
//打开连接
conn.Open();
//开始事务
transaction = conn.BeginTransaction();
int totalCount = 0;
//设置参数
if (sql != null && sql.Length > 0)
{
for (int i = 0; i < sql.Length; i++)
{
if (sql[i] != null && sql[i] != "")
{
SqlCommand comm = new SqlCommand(sql[i]);
//设置命令数据库连接
comm.Connection = conn;
comm.Transaction = transaction;
//执行数据库操作
totalCount += comm.ExecuteNonQuery();
}
}
}
//提交事务
transaction.Commit();
//设置Error标志
_result.HasError = false;
//设置影响记录数
_result.OprateCount = totalCount;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (transaction != null)
{
transaction.Rollback();
}
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置影响记录数为0
_result.OprateCount = 0;
//
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return true;
}
/// <summary>
/// 更新或者登陆多条数据
/// </summary>
/// <param name="lstComm">命令集</param>
/// <returns>操作的记录数</returns>
public static bool ExecuteTransWithArrayList(ArrayList lstComm)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlTransaction transaction = null;
try
{
//打开连接
conn.Open();
//开始事务
transaction = conn.BeginTransaction();
int totalCount = 0;
int count = lstComm.Count;
//设置参数
if (lstComm != null && count > 0)
{
for (int i = 0; i < count; i++)
{
SqlCommand comm = (SqlCommand)lstComm[i];
//设置命令数据库连接
comm.Connection = conn;
comm.Transaction = transaction;
//执行数据库操作
totalCount += comm.ExecuteNonQuery();
}
}
//提交事务
transaction.Commit();
//设置Error标志
_result.HasError = false;
_result.OprateCount = totalCount;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (transaction != null)
{
transaction.Rollback();
}
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置影响记录数为0
_result.OprateCount = 0;
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return true;
}
/// <summary>
/// 执行数据库操作
/// </summary>
/// <param name="comm">命令</param>
/// <returns>操作是否成功</returns>
public static bool ExecuteTransWithCommand(SqlCommand comm)
{
bool isSucc = false;
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlTransaction transaction = null;
try
{
//打开连接
conn.Open();
//开始事务
transaction = conn.BeginTransaction();
//设置命令数据库连接
comm.Connection = conn;
comm.Transaction = transaction;
//执行数据库操作
comm.ExecuteNonQuery();
//提交事务
transaction.Commit();
isSucc = true;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (transaction != null)
{
transaction.Rollback();
}
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return isSucc;
}
/// <summary>
/// 更新或者登陆多条数据
/// </summary>
/// <param name="comm">命令集</param>
/// <returns>操作的记录数</returns>
public static bool ExecuteTransForList(SqlCommand[] comms)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlTransaction transaction = null;
try
{
//打开连接
conn.Open();
//开始事务
transaction = conn.BeginTransaction();
//定义操作COUNT
int totalCount = 0;
//设置参数
if (comms != null && comms.Length > 0)
{
for (int i = 0; i < comms.Length; i++)
{
SqlCommand comm = comms[i];
//设置命令数据库连接
comm.Connection = conn;
comm.Transaction = transaction;
//执行数据库操作
totalCount += comm.ExecuteNonQuery();
}
}
//提交事务
transaction.Commit();
//设置Error标志
_result.HasError = false;
//设置影响记录数
_result.OprateCount = totalCount;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (transaction != null)
{
transaction.Rollback();
}
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置影响记录数为0
_result.OprateCount = 0;
//
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return true;
}
/// <summary>
/// 执行多条查询select语句,返回DataSet
/// </summary>
public static DataSet ExecuteForListWithSQL(string[] sql)
{
DataSet ds = new DataSet();
//设置参数
if (sql != null && sql.Length > 0)
{
for (int i = 0; i < sql.Length; i++)
{
if (sql[i] != null && sql[i] != "")
{
ds.Tables.Add(SqlHelper.ExecuteSql(sql[i]));
}
}
}
return ds;
}
private static Utility.IConnectAssist _connectAssist = new ConnectAssistTag();
/// <summary>
/// 连接辅助
/// </summary>
public static Utility.IConnectAssist ConnectAssist { get { return _connectAssist; } }
/// <summary>
/// 连接助手类,当需要临时更改数据库、密码、服务器、用户,则可以使用此类的成员对 SqlHelper 进行更改。
/// </summary>
/// <remarks>此类不保存设置,仅在程序运行过程中有效,不会自动去更新配置文件。</remarks>
private class ConnectAssistTag : Data.DBHelper.Utility.IConnectAssist
{
#region IConnectAssist 成员
private SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(SqlHelper._connectionString);
/// <summary>
/// 更改服务器
/// </summary>
/// <param name="server">服务器名称</param>
public void ChangeServer(string server)
{
builder.DataSource = server;
SubmitChange();
}
/// <summary>
/// 更改数据库
/// </summary>
/// <param name="database">数据库</param>
public void ChangeDatabase(string database)
{
builder.InitialCatalog = database;
SubmitChange();
}
/// <summary>
/// 更改用户
/// </summary>
/// <param name="user">用户名</param>
public void ChangeUser(string user)
{
builder.UserID = user;
SubmitChange();
}
/// <summary>
/// 更改密码
/// </summary>
/// <param name="password">新密码</param>
public void ChangePassword(string password)
{
builder.Password = password;
SubmitChange();
}
/// <summary>
/// 应用更改
/// </summary>
protected void SubmitChange()
{
SqlHelper._connectionString = builder.ConnectionString;
}
/// <summary>
/// 重置为默认连接字符串(从配置文件中从新读取)
/// </summary>
public void ReSet()
{
SqlHelper._connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
}
/// <summary>
/// 重置为指定链接字符串
/// </summary>
/// <param name="connectionString"></param>
public void ReSet(string connectionString)
{
SqlHelper._connectionString = connectionString;
}
#endregion
}
/// <summary>
///
/// </summary>
/// <param name="comm"></param>
/// <param name="p"></param>
/// <returns></returns>
public static ArrayList SpecailExecuteList(SqlCommand comm, params SqlParameter[] p)
{
ArrayList dataList = new ArrayList();
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
comm.Connection = conn;
conn.Open();
DateTime st1 = DateTime.Now;
SqlDataReader sdr = comm.ExecuteReader(CommandBehavior.CloseConnection);
DateTime st2 = DateTime.Now;
// System.Web.HttpContext.Current.Response.Write(( (st2-st1).Seconds ).ToString() + "::<br>\n");
// int i = 0;
st1 = DateTime.Now;
while (sdr.Read())
{
object[] cols = new object[sdr.FieldCount];
sdr.GetValues(cols);
dataList.Add(cols);
// System.Web.HttpContext.Current.Response.Write((i++).ToString()+"<br>\n");
}
st2 = DateTime.Now;
//System.Web.HttpContext.Current.Response.Write(((st2 - st1).Seconds).ToString() + "::<br>\n");
sdr.Close();
conn.Close();
}
return dataList;
}
#region 适配Microsoft.ApplicationBlocks.Data.SqlHelper
/// <summary>
/// 执行数据库操作
/// </summary>
/// <param name="comm">执行的命令</param>
/// <param name="p">参数集</param>
/// <returns>SqlDataReader</returns>
private static SqlDataReader ExecuteSqlDataReader(SqlCommand comm, params SqlParameter[] p)
{
SqlDataReader dr = null;
//创建连接
SqlConnection conn = new SqlConnection(_connectionString);
comm.Parameters.Clear();
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
comm.Connection = conn;
conn.Open();
try
{
dr = comm.ExecuteReader(CommandBehavior.CloseConnection);
}
catch (Exception ex)
{
conn.Close();
throw ex;
}
return dr;
}
private static DataSet ExecuteDataSet(SqlCommand comm, params SqlParameter[] p)
{
DataSet ds = new DataSet();
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
comm.Connection = conn;
SqlDataAdapter da = new SqlDataAdapter(comm);
try
{
//填充数据
da.Fill(ds);
}
catch (Exception e)
{
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return ds;
}
private static int ExecuteNonQuery(SqlCommand comm, params SqlParameter[] p)
{
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//设置参数
if (p != null && p.Length > 0)
{
foreach (SqlParameter item in p)
comm.Parameters.Add(item);
}
comm.Connection = conn;
conn.Open();
try
{
return comm.ExecuteNonQuery();
}
catch (Exception e)
{
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
}
public static int ExecuteNonQuery(string connectionString, string spName)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteNonQuery(comm, null);
}
public static int ExecuteNonQuery(string connectionString, string spName, params SqlParameter[] parameterValues)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteNonQuery(comm, parameterValues);
}
public static SqlDataReader ExecuteReader(string connectionString, string spName)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteSqlDataReader(comm, null);
}
public static SqlDataReader ExecuteReader(string connectionString, string spName, params SqlParameter[] parameterValues)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteSqlDataReader(comm, parameterValues);
}
public static DataSet ExecuteDataset(string connectionString, string spName)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteDataSet(comm, null);
}
public static DataSet ExecuteDataset(string connectionString, string spName, params SqlParameter[] parameterValues)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = spName,
CommandType = CommandType.StoredProcedure
};
return ExecuteDataSet(comm, parameterValues);
}
public static DataSet ExecuteSqlX(string sqlStatement, params SqlParameter[] parameterValues)
{
//创建命令
SqlCommand comm = new SqlCommand()
{
CommandText = sqlStatement,
CommandType = CommandType.Text
};
return ExecuteDataSet(comm, parameterValues);
}
#endregion
#region 判断记录是否存在
public static object GetSingle(string SQLString, params SqlParameter[] cmdParms)
{
using (SqlConnection connection = new SqlConnection(_connectionString))
{
using (SqlCommand cmd = new SqlCommand())
{
try
{
PrepareCommand(cmd, connection, null, CommandType.Text, SQLString, cmdParms);
object obj = cmd.ExecuteScalar();
cmd.Parameters.Clear();
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch (System.Data.SqlClient.SqlException e)
{
throw e;
}
finally
{
connection.Close();
}
}
}
}
public static bool Exists(string strSql, params SqlParameter[] cmdParms)
{
object obj = GetSingle(strSql, cmdParms);
int cmdresult;
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
cmdresult = 0;
}
else
{
cmdresult = int.Parse(obj.ToString());
}
if (cmdresult == 0)
{
return false;
}
else
{
return true;
}
}
#endregion
#region 构造一个新的SqlCommond实例并初始化
public static SqlCommand GetNewSqlCommond(string Sql, SqlParameter[] Paras)
{
SqlCommand SqlCmd = new SqlCommand() { CommandText = Sql };
SqlCmd.Parameters.AddRange(Paras);
return SqlCmd;
}
#endregion
#region 使用泛型作为SqlCommond 参数集
/// <summary>
/// 更新或者登陆多条数据
/// </summary>
/// <param name="lstComm">命令集</param>
/// <returns>操作的记录数</returns>
public static bool ExecuteTransWithCollections(List<SqlCommand> lstComm)
{
//获得返回集实例
_result = Utility.Result.GetInstance();
//创建连接
using (SqlConnection conn = new SqlConnection(_connectionString))
{
SqlTransaction transaction = null;
try
{
//打开连接
conn.Open();
//开始事务
transaction = conn.BeginTransaction();
int totalCount = 0;
int count = lstComm.Count;
//设置参数
if (lstComm != null && count > 0)
{
for (int i = 0; i < count; i++)
{
SqlCommand comm = lstComm[i];
//设置命令数据库连接
comm.Connection = conn;
comm.Transaction = transaction;
//执行数据库操作
totalCount += comm.ExecuteNonQuery();
}
}
//提交事务
transaction.Commit();
//设置Error标志
_result.HasError = false;
_result.OprateCount = totalCount;
}
catch (Exception e)
{
//如果开始了事务,则回滚事务
if (transaction != null)
{
transaction.Rollback();
}
//设置Error标志
_result.HasError = true;
//设置Error信息
_result.ErrorMessage = e.Message;
//设置影响记录数为0
_result.OprateCount = 0;
throw e;
}
finally
{
//连接打开时,关闭连接
if (conn != null)
{
conn.Close();
}
}
}
return true;
}
#endregion
#region 分页
/// <summary>
/// 通用分页
/// </summary>
/// <param name="Sql">构造完成的SQL字符串</param>
/// <param name="PageIndex">页数</param>
/// <param name="PageSize">页大小</param>
/// <param name="OrderBy">排序字段 比如 ID DESC </param>
/// <param name="Paras">参数集</param>
/// <param name="TotalCount">返回总记录数</param>
/// <returns>datatable</returns>
public static DataTable CreateSqlByPageExcuteSql(string Sql,int PageIndex,int PageSize,string OrderBy,SqlParameter[] Paras,ref int TotalCount)
{
StringBuilder sbSql = new StringBuilder();
if (PageIndex == 1)
sbSql.Append("SELECT TOP " + PageSize + " * FROM");
else
sbSql.Append("SELECT * FROM ");
sbSql.Append(" ( SELECT ROW_NUMBER() OVER (ORDER BY " + OrderBy + ") as RowNumber,tempTable.*");
sbSql.Append(" FROM ( " + Sql + " ) AS tempTable ) AS tmp ");
if (PageIndex != 1)
sbSql.Append("WHERE RowNumber BETWEEN CONVERT(varchar,(@PageIndex-1)*@PageSize+1) AND CONVERT(varchar,(@PageIndex-1)*@PageSize+@PageSize) ");
sbSql.Append(" SELECT @TotalRecord=count(*) from (" + Sql + ") tempTable");
/*重新构造SqlParameter*/
int index = 0;
int Length = 0;
SqlParameter[] SqlParas;
if (Paras != null && Paras.Length > 0)
{
Length = Paras.Length;
SqlParas = new SqlParameter[Length + 3];
for (int i = 0; i < Paras.Length; i++)
{
SqlParas[i] = Paras[i];
index++;
}
}
else
SqlParas = new SqlParameter[Length + 3];
/*将分页参数追加至SqlParameter*/
SqlParas[index] = new SqlParameter("@PageIndex", SqlDbType.Int);
SqlParas[index].Value = PageIndex;
index++;
SqlParas[index] = new SqlParameter("@PageSize", SqlDbType.Int);
SqlParas[index].Value = PageSize;
index++;
SqlParas[index] = new SqlParameter("@TotalRecord", SqlDbType.Int);
SqlParas[index].Direction = ParameterDirection.Output;
DataTable dtTemp = ExecuteSql(sbSql.ToString(), SqlParas);
TotalCount = (int)SqlParas[index].Value;
return dtTemp;
}
/// <summary>
/// 通用分页
/// </summary>
/// <param name="Sql">构造完成的SQL字符串</param>
/// <param name="PageIndex">页数</param>
/// <param name="PageSize">页大小</param>
/// <param name="OrderBy">排序字段 比如 ID DESC </param>
/// <param name="paramList">参数集</param>
/// <param name="TotalCount">返回总记录数</param>
/// <returns>datatable</returns>
public static DataTable CreateSqlByPageExcuteSqlArr(string Sql, int PageIndex, int PageSize, string OrderBy, ArrayList paramList, ref int TotalCount)
{
StringBuilder sbSql = new StringBuilder();
if (PageIndex == 1)
sbSql.Append("SELECT TOP " + PageSize + " * FROM");
else
sbSql.Append("SELECT * FROM ");
sbSql.Append(" ( SELECT ROW_NUMBER() OVER (ORDER BY " + OrderBy + ") as RowNumber,tempTable.*");
sbSql.Append(" FROM ( " + Sql + " ) AS tempTable ) AS tmp ");
if (PageIndex != 1)
sbSql.Append("WHERE RowNumber BETWEEN CONVERT(varchar,(@PageIndex-1)*@PageSize+1) AND CONVERT(varchar,(@PageIndex-1)*@PageSize+@PageSize) ");
sbSql.Append(" SELECT @TotalRecord=count(*) from (" + Sql + ") tempTable");
/*重新构造SqlParameter*/
int index = 0;
int Length = 0;
SqlParameter[] SqlParas;
if (paramList != null && paramList.Count > 0)
{
SqlParas = new SqlParameter[paramList.Count+3];
for (int i = 0; i < paramList.Count; i++)
{
SqlParas[i] = (SqlParameter)paramList[i];
index++;
}
}
else
SqlParas = new SqlParameter[Length + 3];
/*将分页参数追加至SqlParameter*/
SqlParas[index] = new SqlParameter("@PageIndex", SqlDbType.Int);
SqlParas[index].Value = PageIndex;
index++;
SqlParas[index] = new SqlParameter("@PageSize", SqlDbType.Int);
SqlParas[index].Value = PageSize;
index++;
SqlParas[index] = new SqlParameter("@TotalRecord", SqlDbType.Int);
SqlParas[index].Direction = ParameterDirection.Output;
DataTable dtTemp = ExecuteSql(sbSql.ToString(), SqlParas);
TotalCount = (int)SqlParas[index].Value;
return dtTemp;
}
#endregion
/* Add by zqwu 2009-06-10 start */
#region 分页WithCommand
/// <summary>
/// 分页WithCommand
/// </summary>
/// <param name="cmd">执行命令 该命令必须指定了SQL语句</param>
/// <param name="PageIndex">页数</param>
/// <param name="PageSize">页大小</param>
/// <param name="OrderBy">排序字段 比如 ID DESC </param>
/// <param name="TotalCount">返回总记录数</param>
/// <returns>datatable</returns>
public static DataTable PagerWithCommand(SqlCommand cmd, int PageIndex, int PageSize, string OrderBy, ref int TotalCount)
{
//变量定义
StringBuilder sbSql = new StringBuilder();
//第一页时
if (PageIndex == 1)
sbSql.Append("SELECT TOP " + PageSize + " * FROM");
else
sbSql.Append("SELECT * FROM ");
sbSql.Append(" ( SELECT ROW_NUMBER() OVER (ORDER BY " + OrderBy + ") as RowNumber,tempTable.*");
sbSql.Append(" FROM ( " + cmd.CommandText + " ) AS tempTable ) AS tmp ");
if (PageIndex != 1)
sbSql.Append("WHERE RowNumber BETWEEN CONVERT(varchar,(@PageIndex-1)*@PageSize+1) AND CONVERT(varchar,(@PageIndex-1)*@PageSize+@PageSize) ");
sbSql.Append("; SELECT @TotalRecord = count(*) FROM (" + cmd.CommandText + ") tempTable");
//测试SQL语句
//System.Windows.Forms.MessageBox.Show(sbSql.ToString());
//重新设置命令SQL语句
cmd.CommandText = sbSql.ToString();
/* 将分页参数追加至SqlParameter */
//当前页
SqlParameter param = new SqlParameter("@PageIndex", SqlDbType.Int);
param.Value = PageIndex;
cmd.Parameters.Add(param);
//每页显示数
param = new SqlParameter("@PageSize", SqlDbType.Int);
param.Value = PageSize;
cmd.Parameters.Add(param);
//总数
param = new SqlParameter("@TotalRecord", SqlDbType.Int);
param.Direction = ParameterDirection.Output;
cmd.Parameters.Add(param);
DataTable dtTemp = ExecuteSearch(cmd);
TotalCount = (int)cmd.Parameters["@TotalRecord"].Value;
return dtTemp;
}
public static DataTable PagerWithCommand(SqlCommand cmd, int PageIndex, int PageSize, ref int TotalCount)
{
//变量定义
StringBuilder sbSql = new StringBuilder();
//第一页时
if (PageIndex == 1)
sbSql.Append("SELECT TOP " + PageSize + " * FROM");
else
sbSql.Append("SELECT * FROM ");
sbSql.Append(" ( SELECT tempTable.*");
sbSql.Append(" FROM ( " + cmd.CommandText + " ) AS tempTable ) AS tmp ");
if (PageIndex != 1)
sbSql.Append("WHERE RowNumber BETWEEN CONVERT(varchar,(@PageIndex-1)*@PageSize+1) AND CONVERT(varchar,(@PageIndex-1)*@PageSize+@PageSize) ");
sbSql.Append("; SELECT @TotalRecord = count(*) FROM (" + cmd.CommandText + ") tempTable");
//测试SQL语句
//System.Windows.Forms.MessageBox.Show(sbSql.ToString());
//重新设置命令SQL语句
cmd.CommandText = sbSql.ToString();
/* 将分页参数追加至SqlParameter */
//当前页
SqlParameter param = new SqlParameter("@PageIndex", SqlDbType.Int);
param.Value = PageIndex;
cmd.Parameters.Add(param);
//每页显示数
param = new SqlParameter("@PageSize", SqlDbType.Int);
param.Value = PageSize;
cmd.Parameters.Add(param);
//总数
param = new SqlParameter("@TotalRecord", SqlDbType.Int);
param.Direction = ParameterDirection.Output;
cmd.Parameters.Add(param);
DataTable dtTemp = ExecuteSearch(cmd);
TotalCount = (int)cmd.Parameters["@TotalRecord"].Value;
return dtTemp;
}
#endregion
/* Add by zqwu 2009-06-10 end */
}
}