asp.net-mvc-4 - 用于 Asp.net Web API 的 Ninject

Question

将 Ninject 与 Web API 一起使用时出现此错误，但它适用于 MVC Controller :

Type 'App.Web.Controllers.ProductController' does not have a default constructor

NinjectControllerFactory :

public class NinjectControllerFactory : DefaultControllerFactory
    {
        private IKernel ninjectKernel;

        public NinjectControllerFactory()
        {
            ninjectKernel = new StandardKernel();
            AddBindings();
        }

        protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
        {
            return controllerType == null ? null : (IController)ninjectKernel.Get(controllerType);
        }

        public void AddBindings()
        {
            ninjectKernel.Bind<IProductRepository>().To<EFProductRepository>();
        }
    }

全局.asax.cs:

BundleConfig.RegisterBundles(BundleTable.Bundles);

            ControllerBuilder.Current.SetControllerFactory(new NinjectControllerFactory());

产品 Controller :

   public class ProductController : ApiController
        {
            private IProductRepository repository;

            public ProductController(IProductRepository ProducteRepository)
            {
                this.repository = ProductRepository;
            }

            public IEnumerable<Product> GetAllProducts()
            {
                return repository.Products.AsEnumerable();
            }
        }

Answer 1

您已覆盖 DefaultControllerFactory .但这是用于实例化 ASP.NET MVC Controller (一个派生自 System.Web.Mvc.Controller 的 Controller )。它与 ASP.NET Web API Controller (派生自 System.Web.Http.ApiController 的 Controller )完全无关。

所以基本上你在这里所做的是依赖注入(inject)到 ASP.NET MVC。如果您想将其用于 Web API，您可以查看以下指南:

http://www.strathweb.com/2012/05/using-ninject-with-the-latest-asp-net-web-api-source/

http://www.peterprovost.org/blog/2012/06/19/adding-ninject-to-web-api/