爲什麼我的MVC 4授權檢查拋出異常？

Question

我正在使用Visual Studio 2012和SQL Server Express 2012.我使用「Internet應用程序」模板創建了一個MVC 4 Web應用程序。

我想在我的SQL Server 2012 Express實例上（而不是模板的MDF）使用現有的數據庫。我修改了我的web.config來指向我的本地SQL Express實例，並刪除了模板生成的MDF。我的web.config有：

<add name="DefaultConnection" 
    connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=Administration;Integrated Security=SSPI;" providerName="System.Data.SqlClient"/> 

股票代碼成員具有呼叫初始化DB：

WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true); 

一旦應用程序會調用，表得到管理數據庫中創建爲我所期望的。我可以創建用戶並將其填寫到管理中。我可以填充角色表並通過代碼將角色添加到用戶的配置文件中，並驗證它是否已完成。例如：

Roles.GetRolesForUser("kristian"); // = string[] { "Administrator" } 

但是，如果我嘗試使用基於角色的授權，如：

[Authorize(Roles = "Administrator")] 

我得到以下異常：

Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed. 

它給出了一個很長討厭的堆棧跟蹤，使我認爲它仍然試圖創建一個MDF文件：

[SqlException（0x80131904）：無法生成由於無法啓動用戶實例的進程而導致SQL Server的用戶實例。連接將被關閉。] System.Data.SqlClient.SqlInternalConnection.OnError（SqlException異常，布爾breakConnection，動作1 wrapCloseInAction) +5295167 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +242 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +1682 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +69 System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +30 System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover) +317 System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout) +889 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance) +307 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions) +434 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +5309659 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions) +38 System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource 1重試，DbConnectionOptions USEROPTIONS，DbConnectionInternal &連接）5311874 System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection（的DbConnection ExternalConnection，DbConnectionFactory connectionFactory，TaskCompletionSource 1 retry, DbConnectionOptions userOptions) +143 System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource 1 retry）+83 System.Data.SqlClient.SqlConnection.Open（）+96 System.Web.Management.SqlServices.GetSqlConnection（String server，String user，String password，Boolean trusted，String connectionString）+76

[HttpException（0x80004005）：無法連接到SQL Server數據庫。] System.Web.Management.SqlServices.GetSqlConnection（String server，String user，String password，Boolean trusted，String connectionString）+131 System.Web.Management.SqlServices.SetupApplicationServices（String server，String user，String password，Boolean trusted ，字符串connectionString，字符串數據庫，字符串dbFileName，SqlFeatures功能，布爾安裝）+89 System.Web.Management.SqlServices.Install（String database，String dbFileName，String connectionString）+27 System.Web.DataAccess.SqlConnectionHelper.CreateMdfFile （String fullFileName，String dataDir，String connectionString）+386

這個歡樂包底部的行使我認爲它與現在刪除的MDF（'System.Web.DataAccess.SqlConnectionHelper.CreateMdfFile'）有關。我在這裏糾正？或者模板實施的授權不完整？

如果有人已經處理了這個問題，或者知道我的屬性用法失敗的原因，我將非常感謝幫助。

Answer 1

我有這個相同的問題。這似乎與沒有正確初始化SimpleMembership有關。嘗試確保使用[InitializeSimpleMembership]或直接撥打Database.SetInitializer<UsersContext>(null);