26

我创建了一个新的 MVC Web 应用程序，并且我引用了 Ninject.dll、Ninject.Web.Common.dll 和 Ninject.Web.MVC.dll。

全球.asax.cs：

public class MvcApplication : NinjectHttpApplication
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new HandleErrorAttribute());
        }

        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                "Default", // Route name
                "{controller}/{action}/{id}", // URL with parameters
                new
                {
                    controller = "Home",
                    action = "Index",
                    id = UrlParameter.Optional
                });
        }

        protected override IKernel CreateKernel()
        {
            var kernel = new StandardKernel();
            kernel.Load(Assembly.GetExecutingAssembly());
            return kernel;
        }

        protected override void OnApplicationStarted()
        {
            base.OnApplicationStarted();

            AreaRegistration.RegisterAllAreas();
            RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
        }
    }

App_start\NinjectWebCommon：

public static class NinjectWebCommon 
    {
        private static readonly Bootstrapper bootstrapper = new Bootstrapper();

        /// <summary>
        /// Starts the application
        /// </summary>
        public static void Start() 
        {
            DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule));
            DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule));
            bootstrapper.Initialize(CreateKernel);
        }

        /// <summary>
        /// Stops the application.
        /// </summary>
        public static void Stop()
        {
            bootstrapper.ShutDown();
        }

        /// <summary>
        /// Creates the kernel that will manage your application.
        /// </summary>
        /// <returns>The created kernel.</returns>
        private static IKernel CreateKernel()
        {
            var kernel = new StandardKernel();
            kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
            kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();

            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)
        {
        }        
    }

我收到错误“序列不包含任何元素”。我究竟做错了什么？

错误详情：

Description: An unhandled exception occurred during the execution of the current web request. Examine the stack trace for more information about this error and where it originated in the code.

Exception Details: System.InvalidOperationException: Sequence contains no elements

Source Error:
  Unhandled exception occurred during execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.


Stack Trace:

[InvalidOperationException: Последовательность не содержит элементов]
   System.Linq.Enumerable.Single(IEnumerable`1 source) +320
   Ninject.Web.Mvc.NinjectMvcHttpApplicationPlugin.Start() in c:\Projects\Ninject\ninject.web.mvc\mvc3\src\Ninject.Web.Mvc\NinjectMvcHttpApplicationPlugin.cs:53
   Ninject.Web.Common.Bootstrapper.<Initialize>b__0(INinjectHttpApplicationPlugin c) in c:\Projects\Ninject\Ninject.Web.Common\src\Ninject.Web.Common\Bootstrapper.cs:52
   Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map(IEnumerable`1 series, Action`1 action) in c:\Projects\Ninject\ninject\src\Ninject\Infrastructure\Language\ExtensionsForIEnumerableOfT.cs:32
   Ninject.Web.Common.Bootstrapper.Initialize(Func`1 createKernelCallback) in c:\Projects\Ninject\Ninject.Web.Common\src\Ninject.Web.Common\Bootstrapper.cs:52
   Ninject.Web.Common.NinjectHttpApplication.Application_Start() in c:\Projects\Ninject\Ninject.Web.Common\src\Ninject.Web.Common\NinjectHttpApplication.cs:80
4

3 回答 3

40

为了明确这一点，如果您使用 NuGet 添加“Ninject.Mvc3”包（我使用版本 3.0.0.6），则无需对global.asax.cs. NuGet 包通过在MVC 4 项目NinjectWebCommon的文件夹中创建类来为您提供魔法。App_Start

我这样说是因为我似乎遵循了与原始海报类似的教程（我遵循了关于代码项目的一篇文章，名为 ' Dependency Injection in asp.net mvc4 and webapi using Ninject'），并且与原来的问题完全相同海报。代码项目文章没有明确说明您应该使用NuGet（并且不要手动触摸global.asax.cs 或添加 Ninject 引用（和修改global.asax.cs）。

于 2012-08-28T20:56:11.553 回答
24

您来自NinjectHttpApplicationAND 您同时使用App_Start。选一个！阅读Ninject.MVC3的文档以获取更多信息。

于 2012-04-25T13:37:57.333 回答
7

确保您没有引用也使用NinjectMVC3 App_Start. 删除对此类的引用后，我的项目开始工作。此外，如前所述，检查名称空间是否匹配且正确。

于 2012-09-05T11:44:05.700 回答