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潘得华 发表于:2015/10/21 10:12:30   | 显示全部帖子 查看该作者主题 楼主 
科汛在线考试系统(NET)
Server Error in '/' Application.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

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:


 [SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +6277328   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +412   System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity) +6291690   System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) +180   System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +6292078   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +6291993   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +352   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +831   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +49   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +6293798   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +78   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +1922   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +89   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6296622   System.Data.SqlClient.SqlConnection.Open() +300   Kesion.DataBase.DBHelper.ExecuteDataset(String connectionString, CommandType commandType, String commandText, DbParameter[] commandParameters) +112   Kesion.DataBase.DBHelper.ExecuteDataset(CommandType commandType, String commandText) +32   Kesion.SqlDAL.DataFactory.GetDataTable(String sqlstr) +80   Kesion.Cache.DataProvidor.GetDataTable(String sqlstr) +102   Kesion.Cache.MyCache.GetCacheModelTable() +196   Kesion.Cache.MyCache.ReplaceSearchFormByModel() +425   Kesion.Cache.MyCache.ReplaceCommonLabel(String str) +175   Kesion.HtmlTags.Function.ReadFile(String tempDir) +1978   Kesion.HtmlTags.ReplaceIndex.n1S4AiQhp8() +97   Kesion.HtmlTags.ReplaceIndex.GetHomePage() +501   Kesion.NET.WebSite.Index.Page_Load(Object sender, EventArgs e) +5600   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25   System.Web.UI.Control.LoadRecursive() +71   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3048
这种情况怎么解决?
 
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