ASP.NET MVC 4, Die Methode "WebSecurity.InitializeDatabaseConnection" kann nur einmal aufgerufen werden
Ich entwickle eine Code First-Webanwendung in Visual Studio 2012 Express.
Ich benutze diese Verbindungszeichenfolge in der web.config:
<add name="myContext" connectionString="Data Source=.;Integrated Security=True;Initial Catalog=cityKingMVC4" providerName="System.Data.SqlClient" />
Ich benutze SimpleMembership.
Ich versuche, 1 Administrator von Filters / InitializeSimpleMembershipAttribute.cs zu erstellen: ...
WebSecurity.InitializeDatabaseConnection("myContext", "Users", "UserId", "Email", autoCreateTables: true);
// A: Create Admin user
if (!WebSecurity.ConfirmAccount("[email protected]"))
{
WebSecurity.CreateUserAndAccount("[email protected]", "password");
}
// B: Create admin role if not exist
if (!Roles.RoleExists("Administrator"))
{
Roles.CreateRole("Administrator");
Roles.AddUserToRole("[email protected]", "Administrator");
}
Wenn ich A & B kommentiere, stürzt es nicht ab. Wenn ich das nicht bekomme: Die Methode "WebSecurity.InitializeDatabaseConnection" kann nur einmal aufgerufen werden.
Wenn ich einen Haltepunkt für 'WebSecurity.InitializeDatabaseConnection' debugge und festlege, wird dieser nur einmal aufgerufen, und es gibt keinen anderen Code, der WebSecurity.InitializeDatabaseConnection aufruft.
Wenn ich debugge - stürzt es in einer anderen Zeile weiter oben in der Datei (Standard-SimpleAuthentication-Datei) ab: LazyInitializer.EnsureInitialized (ref _initializer, ref _isInitialized, ref _initializerLock);
mit diesem Fehler: Das Ziel eines Aufrufs hat eine Ausnahme ausgelöst.
Stack Trace:
[InvalidOperationException: The "WebSecurity.InitializeDatabaseConnection" method can be called only once.]
WebMatrix.WebData.WebSecurity.InitializeMembershipProvider(SimpleMembershipProvider simpleMembership, DatabaseConnectionInfo connect, String userTableName, String userIdColumn, String userNameColumn, Boolean createTables) +87978
WebMatrix.WebData.WebSecurity.InitializeProviders(DatabaseConnectionInfo connect, String userTableName, String userIdColumn, String userNameColumn, Boolean autoCreateTables) +86
myapPMVC4.Filters.SimpleMembershipInitializer..ctor() in c:\Users\name\Documents\Visual Studio 2012\Projects\myapPMVC4\myapPMVC4\Filters\InitializeSimpleMembershipAttribute.cs:43
[InvalidOperationException: The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588]
myapPMVC4.Filters.SimpleMembershipInitializer..ctor() in c:\Users\name\Documents\Visual Studio 2012\Projects\myapPMVC4\myapPMVC4\Filters\InitializeSimpleMembershipAttribute.cs:88
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +159
System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +256
System.Activator.CreateInstance(Type type, Boolean nonPublic) +127
System.Activator.CreateInstance(Type type) +11
System.Threading.LazyHelpers`1.ActivatorFactorySelector() +72
System.Threading.LazyInitializer.EnsureInitializedCore(T& target, Boolean& initialized, Object& syncLock, Func`1 valueFactory) +241
System.Threading.LazyInitializer.EnsureInitialized(T& target, Boolean& initialized, Object& syncLock) +139
myapPMVC4.Filters.InitializeSimpleMembershipAttribute.OnActionExecuting(ActionExecutingContext filterContext) in c:\Users\name\Documents\Visual Studio 2012\Projects\myapPMVC4\myapPMVC4\Filters\InitializeSimpleMembershipAttribute.cs:22
System.Web.Mvc.Async.AsyncControllerActionInvoker.InvokeActionMethodFilterAsynchronously(IActionFilter filter, ActionExecutingContext preContext, Func`1 nextInChain) +145
System.Web.Mvc.Async.AsyncControllerActionInvoker.InvokeActionMethodFilterAsynchronously(IActionFilter filter, ActionExecutingContext preContext, Func`1 nextInChain) +840201
System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__31(AsyncCallback asyncCallback, Object asyncState) +266
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +146
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +202
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag) +112
System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__1e(AsyncCallback asyncCallback, Object asyncState) +839055
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +146
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +166
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag) +27
System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__17(AsyncCallback asyncCallback, Object asyncState) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +146
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +166
System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +826145
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +146
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +166
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate endDelegate, Object tag) +27
System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +401
System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__2(AsyncCallback asyncCallback, Object asyncState) +786250
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +146
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +166
System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate endDelegate, Object tag) +27
System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +343
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +12550291
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +288
Was ist los?
Vielen Dank
using System;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using System.Threading;
using System.Web.Mvc;
using WebMatrix.WebData;
using System.Web.Security;
using myapPMVC4.Models;
namespace myapPMVC4.Filters
{
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class InitializeSimpleMembershipAttribute : ActionFilterAttribute
{
private static SimpleMembershipInitializer _initializer;
private static object _initializerLock = new object();
private static bool _isInitialized;
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
LazyInitializer.EnsureInitialized(ref _initializer, ref _isInitialized, ref _initializerLock);
}
private class SimpleMembershipInitializer
{
public SimpleMembershipInitializer()
{
Database.SetInitializer<UsersContext>(null);
try
{
using (var context = new UsersContext())
{
if (!context.Database.Exists())
{
// Create the SimpleMembership database without Entity Framework migration schema
((IObjectContextAdapter)context).ObjectContext.CreateDatabase();
}
}
//WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
if (!WebSecurity.Initialized)
{
WebSecurity.InitializeDatabaseConnection("myapPMVC4DBContext", "Users", "UserId", "Email", autoCreateTables: true);
}
// Create Admin user
if (!WebSecurity.ConfirmAccount("[email protected]"))
{
//WebSecurity.CreateUserAndAccount("admin", "pass", new { email = "[email protected]" });
WebSecurity.CreateUserAndAccount("[email protected]", "pass");
}
// Create admin role if not exist
if (!Roles.RoleExists("Administrator"))
{
Roles.CreateRole("Administrator");
Roles.AddUserToRole("[email protected]", "Administrator");
}
}
catch (Exception ex)
{
throw new InvalidOperationException("The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588", ex);
}
}
}
}
}