c# - 依赖注入(inject)不知道我要注入(inject)的类型

Question

我想使用 HaveBox用于依赖注入(inject)。但这不是关于 HaveBox 的问题.所以我创建了基本 Controller :

public abstract class BaseController : Controller
    {
        protected  readonly IRepository m_Repository;

        protected BaseController(IRepository repository)
        {
            m_Repository = repository;
        }
    }

而我的 HomeController 继承自 BaseController。将 HaveBoxConfig.RegisterTypes(); 添加到 Application_Start 方法，HaveBoxConfig 的实现是:

 public class HaveBoxConfig
    {
        public static void RegisterTypes()
        {
            var container = new Container();
            container.Configure(config => config.For<IService>().Use<Service>());
            container.Configure(config => config.For<IRepository>().Use<Repository>());
            IDependencyResolver resolver = DependencyResolver.Current;
            var newResolver = new MyResolver(container, resolver);
            DependencyResolver.SetResolver(newResolver);
        }
    }

还有我的解析器:

public class MyResolver : IDependencyResolver
    {
        private readonly IContainer m_container;
        private readonly IDependencyResolver m_resolver;
        public MyResolver(IContainer container, IDependencyResolver resolver)
        {
            m_container = container;
            m_resolver = resolver;
        }
        public object GetService(Type serviceType)
        {
            try
            {
                return m_container.GetInstance(serviceType);
            }
            catch (Exception ex)
            {
                return m_resolver.GetService(serviceType);
            }
        }
        public IEnumerable<object> GetServices(Type serviceType)
        {
            return m_resolver.GetServices(serviceType);
        }
    }

方法 GetService 调用了下一个类型:IControllerFactory、IControllerActivator、HomeController 但不是我的 IRepository.

我做错了什么？为什么不为 IRepository 执行 DI？

Answer 1

您还需要实现一个 Controller 工厂。最简单的方法是子类化 DefaultControllerFactory .您可以使用 Castle Windsor 查看他们是如何做到的.然后告诉 ASP.NET MVC 使用你的实现。

DependencyResolver.SetResolver(newResolver);
ControllerBuilder.Current.SetControllerFactory(controllerFactory);