System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection?outerConnection,?DbConnectionFactory?connectionFactory,?TaskCompletionSource`1?retry,?DbConnectionOptions?userOptions)?+143
System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection?outerConnection,?DbConnectionFactory?connectionFactory,?TaskCompletionSource`1?retry,?DbConnectionOptions?userOptions)?+17
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1?retry)?+139
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1?retry)?+448
System.Data.SqlClient.SqlConnection.Open?+130
NewFolder1.Class1.user(String?ipkey,?String?rz,?Int32?cl)?+154
Weblication1.api.ProcessRequest(HttpContext?context)?+499
System.Web.CallHandlerExecutionStep.System.Web.Httplication.IExecutionStep.Execute?+814
System.Web.Httplication.ExecuteStepImpl(IExecutionStep?step)?+132
System.Web.Httplication.ExecuteStep(IExecutionStep?step,?Boolean&?pletedSynchronously)?+73
版本信息:?Microsoft?.NET?Framework?版本:4.0.30319;?ASP.NET?版本:4.8.4110.0