asp.net 执行事务的实现代码 //数据库执行区,
SqlConnection _sqlConn = null;
SqlTransaction _SqlTrans = null;
try
{
//数据库操作类
_sqlConn = System.mySQLConnection.SqlConnections.GetSQLConnection();//见下面的类
_sqlConn.Open();
// sql事务对象
_SqlTrans = _sqlConn.BeginTransaction();
//基本信息执行SQL语句情况
bool StudentInfo_YN = false;
if (hid_StudentIDValue == "")
{
StudentInfo_YN = (System.mySQLConnection.SqlConnections.UpdateOrDelete(_sqlConn, _SqlTrans, sql语句) > 0) ? true : false;
}
else
{
StudentInfo_YN = true;
}
bool baoMing_YN = false;
//报名基本信息执行SQL语句情况
if (StudentInfo_YN)
{
//获取报名的o_flowid号,由数据库产生
baoMing_YN = (System.mySQLConnection.SqlConnections.UpdateOrDelete(_sqlConn, _SqlTrans, sql语句) > 0) ? true : false;
}
else
{
baoMing_YN = false;
}
bool baomingdetail_YN = false;
//报名的课程详细信息执行SQL语句情况
if (baoMing_YN)
{
baomingdetail_YN = (System.mySQLConnection.SqlConnections.UpdateOrDelete(_sqlConn, _SqlTrans, sql语句) > 0) ? true : false;
}
else
{
baomingdetail_YN = false;
}
//收费表SQL语句情况
//if (baoMing_YN)
//{
// baomingdetail_YN = (System.mySQLConnection.SqlConnections.UpdateOrDelete(_sqlConn, _SqlTrans, sql语句) > 0) ? true : false;
//}
//else
//{
// baomingdetail_YN = false;
//}
//总的判断全部释放成功。
if (baomingdetail_YN)
{
//提交事务,清除Session验证码
_SqlTrans.Commit();
MessageBox.alert(Page, "报名成功。", "window.location.href='addBaoMing.aspx'");
}
else
{
_SqlTrans.Rollback();
MessageBox.alert(Page, "报名失败。");
return;
}
}
catch (SqlException sqlE)
{
MessageBox.alert(Page, "提交异常 " + sqlE.Message.Replace("\"", "'"));
}
finally
{
if (_sqlConn != null)
_sqlConn.Close();
if (_SqlTrans != null)
_SqlTrans.Dispose();
}
写在SqlConnections的类中(一般放在app_code,也可放在三层架构的类中)
//当前连接的是第几个。
static int count = 0;
//最大连接量
static int maxCount = 30;
static SqlConnection[] sqlConns = new SqlConnection[maxCount];
//自己创建自己
static SqlConnections myConn = new SqlConnections();
//初始化
private SqlConnections()
{
for (int i = 0; i < maxCount; i++)
{
sqlConns[i] = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ADOStr"].ToString());
}
}
// 获取数据库连接
public static int UpdateOrDelete(String sqlTxt)
{
SqlConnection sqlConnTemp = SqlConnections.GetSQLConnection();
try
{
SqlCommand sqlCommT = new SqlCommand(sqlTxt, sqlConnTemp);
sqlConnTemp.Open();
return sqlCommT.ExecuteNonQuery();
}
catch (SqlException sqlE)
{
return 0;
}
finally
{
sqlConnTemp.Close();
}
}
public static SqlConnection GetSQLConnection()
{
try
{
try
{
sqlConns[count].Close();
}
catch (Exception eeX)
{
}
return sqlConns[count];
}
finally
{
//当前个数自加。。
if (count == (maxCount - 1))
{
count = 0;
}
else
{
count++;
}
}
}

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