autofac违反通用约束

时间：2015-04-08 17:44:52

标签： c# generics asp.net-mvc-5 asp.net-web-api2 autofac

我在我的asp.net web api项目中收到此错误，我怀疑是由于我在配置容器时必须犯的一些错误：

  

GenericArguments [0]，＆＃39; Model.AppUser＆＃39;，on＆＃39; Microsoft.AspNet.Identity.IUserStore`2 [TUser，TKey]＆＃39;违反了类型参数约束＆＃39; TUser＆＃39;。

这是我在startup.cs文件中注册此类型的方法：

builder.RegisterType<UserStore<AppUser>>().As<IUserStore<AppUser, Guid>>().InstancePerRequest();

以下是我的课程：

 public class AppUser : ModelBase, IUser<Guid>
{
    public string UserName { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public DateTime? DOB { get; set; }

    // other fields omitted for brevity ...


    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<AppUser, Guid> manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
        userIdentity.AddClaim(new Claim(ClaimTypes.Email, this.Email));
        if (!string.IsNullOrWhiteSpace(this.FirstName))
        {
            userIdentity.AddClaim(new Claim(ClaimTypes.GivenName, this.FirstName));
        }
        if (!string.IsNullOrWhiteSpace(this.LastName))
        {
            userIdentity.AddClaim(new Claim(ClaimTypes.Surname, this.LastName));
        }
        return userIdentity;
    }
}


   public class UserStore<TUser> : IUserLoginStore<TUser, Guid>,
                                IUserClaimStore<TUser, Guid>,
                                IUserPasswordStore<TUser, Guid>,
                                IUserSecurityStampStore<TUser, Guid>,
                                IUserEmailStore<TUser, Guid>,
                                IUserPhoneNumberStore<TUser, Guid>,
                                IUserTwoFactorStore<TUser, Guid>,
                                IUserLockoutStore<TUser, Guid>,
                                IUserStore<TUser, Guid>
       where TUser : AppUser
{
    private bool _disposed;
    private readonly IUserRepository _userRepo;
    private readonly IUserClaimRepository _userClaimRepo;
    private readonly IGenericRepository<AppUserLogin, Guid> _userLoginRepo;

    public UserStore(IUserRepository userRepo, IUserClaimRepository userClaimRepo,
                     IGenericRepository<AppUserLogin, Guid> userLoginRepo)
    {
        _userRepo = userRepo;
        _userClaimRepo = userClaimRepo;
        _userLoginRepo = userLoginRepo;
    }

    public Task CreateAsync(TUser user)
    {
        if (user == null)
        {
            throw new ArgumentNullException("user");
        }
        _userRepo.Add(user);
        return Task.FromResult<object>(null);
    }

    // other methods omitted for brevity
  }

有趣的是，我注册我的类型的方式在asp.net MVC项目中完美运行，但不是在web api中。我现在收到此错误的原因是我已决定将所有安全问题（即登录，注销，注册等）移至我的网络API层。

到目前为止，谷歌搜索还没有多大帮助。有什么想法吗？

更新1 09/04 12:30 PM GMT - 添加了堆栈跟踪

  

＆＃39; /＆＃39;中的服务器错误应用。 GenericArguments [0]，   ＆＃39; Model.AppUser＆＃39;，开启   ＆＃39; Microsoft.AspNet.Identity.IUserStore`2 [TUSER，TKEY的]＆＃39;违反了   类型参数的约束＆＃39; TUser＆＃39;。描述：未处理   在执行当前Web请求期间发生异常。   请查看堆栈跟踪以获取有关错误的更多信息   它起源于代码。

     

异常详细信息：System.TypeLoadException：GenericArguments [0]，   ＆＃39; Model.AppUser＆＃39;，开启   ＆＃39; Microsoft.AspNet.Identity.IUserStore`2 [TUSER，TKEY的]＆＃39;违反了   类型参数的约束＆＃39; TUser＆＃39;。

     

来源错误：

     

执行期间生成了未处理的异常   当前的网络请求。有关的来源和位置的信息   可以使用下面的异常堆栈跟踪来识别异常。

     

堆栈追踪：

     

[TypeLoadException：GenericArguments [0]，   ＆＃39; Model.AppUser＆＃39;，开启   ＆＃39; Microsoft.AspNet.Identity.IUserStore`2 [TUSER，TKEY的]＆＃39;违反了   类型参数的约束＆＃39; TUser＆＃39;。]   System.RuntimeTypeHandle.Instantiate（RuntimeTypeHandle句柄，IntPtr *   pInst，Int32 numGenericArgs，ObjectHandleOnStack type）+0
  System.RuntimeTypeHandle.Instantiate（Type [] inst）+94
  System.RuntimeType.MakeGenericType（Type [] instantiation）+209

     

[ArgumentException：GenericArguments [0]，   ＆＃39; Model.AppUser＆＃39;，开启   ＆＃39; Microsoft.AspNet.Identity.IUserStore 2[TUser,TKey]' violates the constraint of type 'TUser'.]
System.RuntimeType.ValidateGenericArguments(MemberInfo definition, RuntimeType[] genericArguments, Exception e) +4182003
System.RuntimeType.MakeGenericType(Type[] instantiation) +225
Autofac.Features.Variance.<>c__DisplayClass8.<RegistrationsFor>b__2(Type[] a) +13 System.Linq.WhereSelectEnumerableIterator 2.MoveNext（）+157   System.Linq.d__14 2.MoveNext() +393
System.Linq.WhereSelectEnumerableIterator 2.MoveNext（）+81
  Autofac.Core.Registration.ComponentRegistry.GetInitializedServiceInfo（服务   服务）+268
  Autofac.Core.Registration.ComponentRegistry.RegistrationsFor（服务   服务）+87
  Autofac.Core.Registration.d__a.MoveNext（）+301
  Autofac.Core.Registration.ComponentRegistry.GetInitializedServiceInfo（服务   服务）+268
  Autofac.Core.Registration.ComponentRegistry.TryGetRegistration（服务   服务，IComponentRegistration＆amp;注册）+82
  Autofac.Core.Activators.Reflection.AutowiringParameter.CanSupplyValue（的ParameterInfo   pi，IComponentContext context，Func 1& valueProvider) +124
Autofac.Core.Activators.Reflection.ConstructorParameterBinding..ctor(ConstructorInfo ci, IEnumerable 1 availableParameters，IComponentContext context）+213   Autofac.Core.Activators.Reflection＆LT;＆GT; c__DisplayClass5.b__4（ConstructorInfo   ci）+34 System.Linq.WhereSelectArrayIterator 2.MoveNext() +66
System.Linq.WhereEnumerableIterator 1.MoveNext（）+85
  System.Linq.Buffer 1..ctor(IEnumerable 1来源）+132
  System.Linq.Enumerable.ToArray（IEnumerable 1 source) +77
Autofac.Core.Activators.Reflection.ReflectionActivator.ActivateInstance(IComponentContext context, IEnumerable 1个参数）+154
  Autofac.Core.Resolving.InstanceLookup.Activate（IEnumerable 1 parameters) +48
Autofac.Core.Resolving.InstanceLookup.<Execute>b__0() +7
Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(Guid id, Func 1创作者）+120
  Autofac.Core.Resolving.InstanceLookup.Execute（）+132
  Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance（ISharingLifetimeScope   currentOperationScope，IComponentRegistration注册，   IEnumerable 1 parameters) +133
Autofac.Core.Resolving.InstanceLookup.ResolveComponent(IComponentRegistration registration, IEnumerable 1个参数）+24
  Autofac.Core.Registration＆LT;＆GT; c__DisplayClass8.b__3（IComponentContext   c，IEnumerable 1 p) +19
Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(IComponentContext context, IEnumerable 1个参数）+32
  Autofac.Core.Resolving.InstanceLookup.Activate（IEnumerable 1 parameters) +48 Autofac.Core.Resolving.InstanceLookup.Execute() +48 Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable 1个参数）+133
  Autofac.Core.Resolving.InstanceLookup.ResolveComponent（IComponentRegistration   注册，IEnumerable 1 parameters) +24
Autofac.Core.Activators.Reflection.<>c__DisplayClass2.<CanSupplyValue>b__0() +31 Autofac.Core.Activators.Reflection.ConstructorParameterBinding.Instantiate() +94 Autofac.Core.Activators.Reflection.ReflectionActivator.ActivateInstance(IComponentContext context, IEnumerable 1参数）+185
  Autofac.Core.Resolving.InstanceLookup.Activate（IEnumerable 1 parameters) +48 Autofac.Core.Resolving.InstanceLookup.Execute() +48 Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable 1个参数）+133
  Autofac.Core.Resolving.InstanceLookup.ResolveComponent（IComponentRegistration   注册，IEnumerable 1 parameters) +24
Autofac.Core.Registration.<>c__DisplayClass8.<RegistrationsFor>b__3(IComponentContext c, IEnumerable 1 p）+19
  Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance（IComponentContext   上下文，IEnumerable 1 parameters) +32
Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable 1   参数）+48 Autofac.Core.Resolving.InstanceLookup.Execute（）+48   Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance（ISharingLifetimeScope   currentOperationScope，IComponentRegistration注册，   IEnumerable 1 parameters) +133
Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration registration, IEnumerable 1个参数）+44

     

[DependencyResolutionException：抛出异常时   执行解析操作。有关详细信息，请参阅InnerException。   ---＆GT; GenericArguments [0]，＆＃39; Model.AppUser＆＃39;，on＆＃39; Microsoft.AspNet.Identity.IUserStore 2[TUser,TKey]' violates the constraint of type 'TUser'. (See inner exception for details.)]
Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration registration, IEnumerable 1个参数）+112
  Autofac.Core.Lifetime.LifetimeScope.ResolveComponent（IComponentRegistration   注册，IEnumerable 1 parameters) +109
Autofac.ResolutionExtensions.TryResolveService(IComponentContext context, Service service, IEnumerable 1个参数，对象＆amp;实例）   +74 Autofac.ResolutionExtensions.ResolveOptionalService（IComponentContext   上下文，服务服务，IEnumerable`1参数）+53
  Autofac.Integration.Mvc.AutofacDependencyResolver.GetService（类型   serviceType）+59
  System.Web.Mvc.DefaultControllerActivator.Create（的RequestContext   requestContext，Type controllerType）+41

     

[InvalidOperationException：尝试创建时出错   控制器类型＆＃39; UI.Controllers.AccountController＆＃39;。使   确保控制器具有无参数的公共构造函数。]
  System.Web.Mvc.DefaultControllerActivator.Create（的RequestContext   requestContext，Type controllerType）+178
  System.Web.Mvc.DefaultControllerFactory.GetControllerInstance（的RequestContext   requestContext，Type controllerType）+77
  System.Web.Mvc.DefaultControllerFactory.CreateController（的RequestContext   requestContext，String controllerName）+88
  Castle.Proxies.Invocations.IControllerFactory_CreateController.InvokeMethodOnTarget（）   +118 Castle.DynamicProxy.AbstractInvocation.Proceed（）+80 Glimpse.Core.Extensibility.CastleInvocationToAlternateMethodContextAdapter.Proceed（）   +11 Glimpse.Core.Extensions.AlternateMethodContextExtensions.TryProceedWithTimer（IAlternateMethodContext   上下文，TimerResult＆amp; timerResult）+41
  Glimpse.Core.Extensibility.AlternateMethod.NewImplementation（IAlternateMethodContext   上下文）+25
  Glimpse.Core.Extensibility.AlternateTypeToCastleInterceptorAdapter.Intercept（IInvocation   调用）+84 Castle.DynamicProxy.AbstractInvocation.Proceed（）   +108 Castle.Proxies.IControllerFactoryProxy.CreateController（RequestContext   requestContext，String controllerName）+214
  System.Web.Mvc.MvcHandler.ProcessRequestInit（HttpContextBase   httpContext，IController＆amp;控制器，IControllerFactory＆amp;厂）   +191 System.Web.Mvc.MvcHandler.BeginProcessRequest（HttpContextBase httpContext，AsyncCallback回调，对象状态）+50
  System.Web.Mvc.MvcHandler.BeginProcessRequest（HttpContext httpContext，   AsyncCallback回调，对象状态）+48
  System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest（HttpContext的   context，AsyncCallback cb，Object extraData）+16
  System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute（）   +301 System.Web.HttpApplication.ExecuteStep（IExecutionStep step，Boolean＆amp; completedSynchronously）+155

0 个答案:

没有答案
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