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依赖注入 – Ninject“加载Ninject组件ICache时出错”

发布时间:2020-12-14 04:54:57 所属栏目:百科 来源:网络整理
导读:我刚刚从NuGet安装了新的Ninject.MVC3并试图让它在我的asp.net mvc 3应用程序中运行,但是我现在得到这个奇怪的错误,然后在浏览我的网站时: [InvalidOperationException: Error loading Ninject component ICacheNo such component has been registered in t
我刚刚从NuGet安装了新的Ninject.MVC3并试图让它在我的asp.net mvc 3应用程序中运行,但是我现在得到这个奇怪的错误,然后在浏览我的网站时:

[InvalidOperationException: Error loading Ninject component ICache
No such component has been registered in the kernel's component container.

Suggestions:
  1) If you have created a custom subclass for KernelBase,ensure that you have properly
     implemented the AddComponents() method.
  2) Ensure that you have not removed the component from the container via a call to RemoveAll().
  3) Ensure you have not accidentally created more than one kernel.
]
   Ninject.Components.ComponentContainer.Get(Type component) in d:BuildAgent-01workb68efe9aafe8875esrcNinjectComponentsComponentContainer.cs:146
   Ninject.Components.ComponentContainer.Get() in d:BuildAgent-01workb68efe9aafe8875esrcNinjectComponentsComponentContainer.cs:102
   Ninject.KernelBase.CreateContext(IRequest request,IBinding binding) in d:BuildAgent-01workb68efe9aafe8875esrcNinjectKernelBase.cs:540
   Ninject.<>c__DisplayClassa.<Resolve>b__6(IBinding binding) in d:BuildAgent-01workb68efe9aafe8875esrcNinjectKernelBase.cs:375
   System.Linq.<>c__DisplayClass12`3.<CombineSelectors>b__11(TSource x) +20
   System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +151
   System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4178557
   Ninject.Web.Mvc.NinjectDependencyResolver.GetService(Type serviceType) in c:ProjectsNinjectninject.web.mvcmvc3srcNinject.Web.MvcNinjectDependencyResolver.cs:56
   System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext,Type controllerType) +51

[InvalidOperationException: An error occurred when trying to create a controller of type 'MyApp.Controllers.NewsController'. Make sure that the controller has a parameterless public constructor.]
   System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext,Type controllerType) +182
   System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext,Type controllerType) +80
   System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext,String controllerName) +74
   System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext,IController& controller,IControllerFactory& factory) +196
   System.Web.Mvc.<>c__DisplayClass6.<BeginProcessRequest>b__2() +49
   System.Web.Mvc.<>c__DisplayClassb`1.<ProcessInApplicationTrust>b__a() +13
   System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
   System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
   System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Func`1 func) +124
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext,AsyncCallback callback,Object state) +98
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext,Object state) +50
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context,AsyncCallback cb,Object extraData) +16
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8862580
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step,Boolean& completedSynchronously) +184

我的代码是:

// AppStart_NinjectMVC3.cs

using System.Web.Mvc;
    using Ninject.Modules;

    [assembly: WebActivator.PreApplicationStartMethod(typeof(MyApp.AppStart_NinjectMVC3),"Start")]

    namespace MyApp
    {
        using Microsoft.Web.Infrastructure.DynamicModuleHelper;



  using Ninject;

    public static class AppStart_NinjectMVC3
    {
        public static void Start()
        {
            DynamicModuleUtility.RegisterModule(typeof(OnePerRequestModule));
            DynamicModuleUtility.RegisterModule(typeof(NinjectHttpApplicationModule));
        }
    }
}

// NinjectHttpApplicationModule.cs

using MyApp.Data;
using NHibernate;

namespace MyApp
{
    using System;
    using System.Web;

    using Ninject;
    using Ninject.Web.Mvc;

    public sealed class NinjectHttpApplicationModule : IHttpModule,IDisposable
    {
        #region Ninject Mvc3 extension bootstrapper (Do not touch this code)
        private static readonly Bootstrapper bootstrapper = new Bootstrapper();
        private static bool initialized;
        private static bool kernelDisposed;

        /// <summary>
        /// Initializes a module and prepares it to handle requests.
        /// Do not change this method!
        /// </summary>
        /// <param name="context">An <see cref="T:System.Web.HttpApplication"/> that provides access to the methods,properties,and events common to all application objects within an ASP.NET application</param>
        public void Init(HttpApplication context)
        {
            lock (bootstrapper)
            {
                if (initialized)
                {
                    return;
                }

                initialized = true;
                bootstrapper.Initialize(CreateKernel);
            }
        }

        /// <summary>
        /// Disposes the <see cref="T:System.Web.HttpApplication"/> instance.
        /// Do not change this method!
        /// </summary>
        public void Dispose()
        {
            lock (bootstrapper)
            {
                if (kernelDisposed)
                {
                    return;
                }

                kernelDisposed = true;
                bootstrapper.ShutDown();
            }
        }
        #endregion

        /// <summary>
        /// Creates the kernel that will manage your application.
        /// </summary>
        /// <returns>The created kernel.</returns>
        private static IKernel CreateKernel()
        {
            var kernel = new StandardKernel();
            RegisterServices(kernel);
            return kernel;
        }

        /// <summary>
        /// Load your modules or register your services here!
        /// </summary>
        /// <param name="kernel">The kernel.</param>
        private static void RegisterServices(IKernel kernel)
        {
            kernel.Bind<ISession>().ToMethod(x => kernel.Get<SessionFactoryBuilder>().CreateFactory().OpenSession()).InRequestScope();
            kernel.Bind<ITransaction>().ToMethod(x => kernel.Get<ISession>().BeginTransaction()).InRequestScope();
            kernel.Bind(typeof(IRepositoryBase<>)).To(typeof(RepositoryBase<>));
            kernel.Bind<IUnitOfWork>().To<UnitOfWork>();
        }
    }
}

大多数代码是NuGet安装时的默认代码.我唯一做的就是在RegisterServices()中添加一些绑定

有什么建议?

解决方法

已在2.2.1.0中修复

有关更多信息,请参见http://www.planetgeek.ch/2011/03/01/ninject-2-2-1-0-and-ninject-mvc3-2-2-1-0-released/.

(编辑:李大同)

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