無法打開數據庫，用戶登錄失敗

Question

我在visual studio上運行nerddinner MVC應用程序，並且數據庫在sql server 2008上。我以前遇到權限等問題，但我似乎有這些排序。

我在SQL Server Management Studio中創建了一個用戶 - taraw，並得到了這一切工作。我可以很好地登錄到它。

當我測試應用程序時，我可以看到所有的數據庫條目，但只是當我想註冊一個新的用戶時，應用程序崩潰，出現此錯誤： 已關閉。

Failed to generate a user instance of SQL Server. Only an integrated connection can generate a user instance. The connection will be closed.

我正在使用aspnet成員資格api來註冊和維護用戶帳戶。我使用aspnet_regsql.exe工具將api表添加到我現有的數據庫中。

這是連接字符串我在web.config文件：

<connectionStrings> 
    <add name="ApplicationServices" connectionString="Data Source=localhost;Initial Catalog=nerddinner;user id=taraw;password=Password;User Instance=true" providerName="System.Data.SqlClient" /> 
    <add name="nerddinnerEntities" connectionString="metadata=res://*/Models.NerdDinner.csdl|res://*/Models.NerdDinner.ssdl|res://*/Models.NerdDinner.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=localhost;Initial Catalog=nerddinner;user id=taraw;password=Password;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /> 
    </connectionStrings> 

我會想象的問題是與應用服務的連接串，我可以看到從數據庫中細所有其他信息。

這裏是堆棧跟蹤，

[SqlException (0x80131904): Failed to generate a user instance of SQL Server. Only an integrated connection can generate a user instance. The connection will be closed.] 
    System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009598 
    System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234 
    System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275 
    System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +35 
    System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) +183 
    System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +239 
    System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +195 
    System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +232 
    System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +5023255 
    System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +33 
    System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +524 
    System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 
    System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +479 
    System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +108 
    System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126 
    System.Data.SqlClient.SqlConnection.Open() +125 
    System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +95 
    System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +206 
    System.Web.Security.SqlMembershipProvider.CreateUser(String username, String password, String email, String passwordQuestion, String passwordAnswer, Boolean isApproved, Object providerUserKey, MembershipCreateStatus& status) +2517 
    NerdDinner.Models.AccountMembershipService.CreateUser(String userName, String password, String email) in C:\Users\TaraW\Documents\Visual Studio 2010\Projects\MVC\NerdDinner\NerdDinner\Models\AccountModels.cs:127 
    NerdDinner.Controllers.AccountController.Register(RegisterModel model) in C:\Users\TaraW\Documents\Visual Studio 2010\Projects\MVC\NerdDinner\NerdDinner\Controllers\AccountController.cs:93 
    lambda_method(Closure , ControllerBase , Object[]) +162 
    System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +51 
    System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +409 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +52 
    System.Web.Mvc.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() +127 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +436 
    System.Web.Mvc.<>c__DisplayClassf.<InvokeActionMethodWithFilters>b__c() +61 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +305 
    System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +830 
    System.Web.Mvc.Controller.ExecuteCore() +136 
    System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +111 
    System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +39 
    System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +65 
    System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +44 
    System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +42 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +141 
    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +54 
    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40 
    System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +52 
    System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38 
    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8841105 
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184 

編輯：

我也曾嘗試以下命令：

1>EXEC sp_grantlogin 'TaraW-PC\TaraW' 
2>GO 

1>USE nerddinner 
2>GO 

1>EXEC sp_grantdbaccess 'TaraW-PC\TaraW' 
2>GO 

1>EXIT 

但是我得到了以下錯誤：

Msg 15063, Level 16, State 1, Server TARAW-PC, Line 1 The login already has an account under a different user nameclosed.

Answer 1

從Application Services連接字符串中刪除了「User Instance = true」。對我來說有詭計了。

Answer 2

最好的辦法是放置用戶實例並讓它使用集成安全性，然後ASP.NET可以創建/擁有數據庫，您不必擔心它。

無論如何，授予訪問Windows帳戶'TaraW-PC \ TaraW'將不會幫助您在這裏舔，因爲您沒有使用該帳戶登錄，您使用稱爲taraw的SQL帳戶登錄。你需要做的是：

1）運行aspnet_regsql來創建你的應用服務數據庫。
2）在數據庫中創建所述帳戶
3）將該帳戶添加到您需要的各種aspnetdb角色。