堆栈信息： 在 System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) 在 System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) 在 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) 在 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) 在 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) 在 System.Data.OleDb.OleDbConnection.Open() 在 CCWA.Data.Access.AccessDbHelper.Open() 在 CCWA.Web.PageBase.PageBase.OnInit(EventArgs e) 在 System.Web.UI.Control.InitRecursive(Control namingContainer) 在 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)