asp.net-mvc - 将 ninject 与 Ninject.Web.Api 一起用于 Web Api 2 在 ASP.NET MVC 5 中不起作用

Question

我正在开发一个 Asp.NET MVC 项目。我的项目也有 web api。我在 Visual Studio 3 中使用 ASP.NET MVC5 和 Web Api 2。我正在使用 ninject 进行依赖注入。我知道 ninject for web 不适用于 Web Api 2。所以我尝试使用 Ninject for Web Api。

我使用 nuget 包管理器为 web api 2 包安装了 ninject

然后我使用 nuget 包管理器安装了 Ninject.Web

然后在 NinjectWebCommon 中，我在 RegisterServices 中添加了这一行

private static void RegisterServices(IKernel kernel)
        {
            System.Web.Http.GlobalConfiguration.Configuration.DependencyResolver = new Ninject.WebApi.DependencyResolver.NinjectDependencyResolver(kernel);
            kernel.Bind<ICategoryRepo>().To<CategoryRepo>();
        }    

这是我注册一个依赖项的完整 NinjectWebCommon 类

[assembly: WebActivatorEx.PreApplicationStartMethod(typeof(PatheinFashionStore.Web.App_Start.NinjectWebCommon), "Start")]
[assembly: WebActivatorEx.ApplicationShutdownMethodAttribute(typeof(PatheinFashionStore.Web.App_Start.NinjectWebCommon), "Stop")]

namespace PatheinFashionStore.Web.App_Start
{
    using System;
    using System.Web;

    using Microsoft.Web.Infrastructure.DynamicModuleHelper;

    using Ninject;
    using Ninject.Web.Common;
    using PatheinFashionStore.Domain.Abstract;
    using PatheinFashionStore.Domain.Concrete;

    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();
            try
            {
                kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
                kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();
                System.Web.Http.GlobalConfiguration.Configuration.DependencyResolver = new Ninject.WebApi.DependencyResolver.NinjectDependencyResolver(kernel);
                RegisterServices(kernel);
                return kernel;
            }
            catch
            {
                kernel.Dispose();
                throw;
            }
        }

        /// <summary>
        /// Load your modules or register your services here!
        /// </summary>
        /// <param name="kernel">The kernel.</param>
        private static void RegisterServices(IKernel kernel)
        {

            kernel.Bind<ICategoryRepo>().To<CategoryRepo>();
        }        
    }
}

这是我的控制器

 public class HomeController : Controller
    {
        private ICategoryRepo categoryRepo;

        public HomeController(ICategoryRepo categoryRepoParam)
        {
            this.categoryRepo = categoryRepoParam;
        }

        public ActionResult Index()
        {
            return View();
        }
}

然后当我运行我的代码时，它给了我这个错误

更新

但是当我访问 apiController 时，它正在工作。

这是我的网络 api 控制器

 public class TestController : ApiController
    {
        private ICategoryRepo categoryRepo;

        public TestController(ICategoryRepo categoryRepoParam)
        {
            this.categoryRepo = categoryRepoParam;
        }

        public string Get()
        {
            this.categoryRepo.Create();
            return "OK";
        }
    }

所以我发现它适用于 web api，但不适用于 web 项目。我在同一个项目中使用两者。

Answer 1

您需要安装Ninject.MVC5并设置DependencyResolverfor MVC 以及DependencyResolverfor WebApi

// Web Api
System.Web.Http.GlobalConfiguration.Configuration.DependencyResolver = new Ninject.WebApi.DependencyResolver.NinjectDependencyResolver(kernel);

// MVC 
System.Web.Mvc.DependencyResolver.SetResolver(new Ninject.Web.Mvc.NinjectDependencyResolver(kernel));