无法打开数据库，用户登录失败

Question

我在visual studio上运行nerddinner MVC应用程序，并且数据库在sql server 2008上。我以前遇到权限等问题，但我似乎有这些排序。

我在SQL Server Management Studio中创建了一个用户 - taraw，并得到了这一切工作。我可以很好地登录到它。

当我测试应用程序时，我可以看到所有的数据库条目，但只是当我想注册一个新的用户时，应用程序崩溃，出现此错误： 已关闭。

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成员资格api来注册和维护用户帐户。我使用aspnet_regsql.exe工具将api表添加到我现有的数据库中。

这是连接字符串我在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> 

我会想象的问题是与应用服务的连接串，我可以看到从数据库中细所有其他信息。

这里是堆栈跟踪，

[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 

编辑：

我也曾尝试以下命令：

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 

但是我得到了以下错误：

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

Answer 1

从Application Services连接字符串中删除了“User Instance = true”。对我来说有诡计了。

Answer 2

最好的办法是放置用户实例并让它使用集成安全性，然后ASP.NET可以创建/拥有数据库，您不必担心它。

无论如何，授予访问Windows帐户'TaraW-PC \ TaraW'将不会帮助您在这里舔，因为您没有使用该帐户登录，您使用称为taraw的SQL帐户登录。你需要做的是：

1）运行aspnet_regsql来创建你的应用服务数据库。
2）在数据库中创建所述帐户
3）将该帐户添加到您需要的各种aspnetdb角色。