Question

我正在开发一个Windows服务，用于将数据从一个远程数据库传输到另一个数据库。

当我尝试连接到数据库时，我收到以下错误。此连接字符串在Web应用程序中运行良好。

仅当我尝试使用Windows服务连接数据库时才会出现此错误。

System.Data.SqlClient.SqlException: Login failed for user 'sa'. Reason: Not associated with a trusted SQL Server connection.
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
   at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
   at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at WindowsService.Program.timer1_Elapsed(Object sender, EventArgs e) in E:\Trigger\WindowsService\WindowsService\Program.cs:line 93

我正在使用的Connectionstring：

SqlConnection con = new SqlConnection("Data Source=TAG2;Initial Catalog=A10;User ID=sa; pwd=root;Integrated Security=False");"

Answer 1

sql server很可能设置为“仅Windows身份验证”模式。请参阅此MSDN link以解决您的错误。

Answer 2

作为默认安装，我认为，它设置为仅允许Windows身份验证。但是，使用Sql Server Management Studio（如果使用），您可以启用Sql Server身份验证。点击此处的链接http://cherupally.blogspot.com.au/2009/04/user-is-not-associated-with-trusted-sql.html

Answer 3

尝试检查数据库上的设置 - 您可能需要更改身份验证方法 “仅限Windows”到“SQL身份验证”

您可以阅读更多here

用户'sa'登录失败。原因：与受信任的SQL无关

3 个答案: