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我的系统遇到超时过期问题。有关更多详细信息，请参阅错误消息：

Timeout expired.  The timeout period elapsed prior to obtaining a connection from the pool.  This may have occurred because all pooled connections were in use and max pool size was reached. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.InvalidOperationException: Timeout expired.  The timeout period elapsed prior to obtaining a connection from the pool.  This may have occurred because all pooled connections were in use and max pool size was reached.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[InvalidOperationException: Timeout expired.  The timeout period elapsed prior to obtaining a connection from the pool.  This may have occurred because all pooled connections were in use and max pool size was reached.]
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +5079753
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126
   System.Data.SqlClient.SqlConnection.Open() +125
   SubSonic.SqlDataProvider.CreateConnection(String newConnectionString) +37
   SubSonic.SqlDataProvider.CreateConnection() +25
   SubSonic.AutomaticConnectionScope..ctor(DataProvider provider) +62
   SubSonic.SqlDataProvider.GetReader(QueryCommand qry) +54
   SubSonic.DataService.GetReader(QueryCommand cmd) +25
   SubSonic.StoredProcedure.ExecuteTypedList() +47
   Db.Employee.FindByUsername(String sUsername) in d:\Hudson\jobs\SMART Staff - Dev\workspace\Staff\site\Classes\DataAccess\Employee.cs:426
   CurrentUser.get_SmartID() in d:\Hudson\jobs\SMART Staff - Dev\workspace\Staff\site\Classes\CurrentUser.cs:38
   DbRoleProvider.GetRolesForUser(String usernameIgnored) in d:\Hudson\jobs\SMART Staff - Dev\workspace\Staff\site\Classes\DbRoleProvider.cs:21
   System.Web.Security.RolePrincipal.IsInRole(String role) +182
   System.Web.Configuration.AuthorizationRule.IsTheUserInAnyRole(StringCollection roles, IPrincipal principal) +132
   System.Web.Configuration.AuthorizationRule.IsUserAllowed(IPrincipal user, String verb) +264
   System.Web.Configuration.AuthorizationRuleCollection.IsUserAllowed(IPrincipal user, String verb) +201
   System.Web.Security.UrlAuthorizationModule.OnEnter(Object source, EventArgs eventArgs) +9018637
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

只是徘徊有没有人知道如何关闭当我单击取消或刷新 c# .net 中的页面时连接的所有数据库连接？

4

3 回答 3

1

您应该注意在代码结束之前释放所有对象，对于数据库连接，您应该确保尽可能短地打开它们，例如您可以使用 (using) 关键字：

using (SqlConnection conn = new SqlConnection(connectionString))
{
  conn.Open();
  ///Use the connection ....
  ///.
  ///.
  ///.
  /// The connection will be closed and disposed automatically before the end of (using) block;
}
于 2012-10-23T05:19:01.307 回答
0

也许这可以帮助你：

我怎样才能杀死所有用户到我的 sql server 数据库的连接？

但不确定，你没有告诉你正在使用什么 DBMS。

于 2012-10-23T03:42:19.637 回答
0

打开连接后，尝试像这样关闭它： 

 using (SqlConnection conn = new SqlConnection(connectionString))
    {  
    try          
    {    
    //
    //
    //             
    conn.Close();
    }
    catch (Exception ex)
    {
    MessageBox.Show(ex.Message);
    }
    finally
    {
    if (conn != null) conn.Close();
    }
    }
于 2012-10-23T06:41:01.533 回答