AutoFac实现程序集级别的依赖注入

/// <summary>
      ///使用AutoFac实现依赖注入
      /// </summary>
      private voidautoFac()
      {
          var builder = newContainerBuilder();
          SetupResolveRules(builder);  //注入

          builder.RegisterControllers(Assembly.GetExecutingAssembly());  //注入所有Controller
          var container =builder.Build();
          DependencyResolver.SetResolver(newAutofacDependencyResolver(container));
      }

private voidSetupResolveRules(ContainerBuilder builder)
       {
           //UI项目只用引用service和repository的接口，不用引用实现的dll。
           //如需加载实现的程序集，将dll拷贝到bin目录下即可，不用引用dll
           var IServices = Assembly.Load("MyMVC3.Business.IServices");   
           var Services = Assembly.Load("MyMVC3.Business.Services");
           var IRepository = Assembly.Load("MyMVC3.Modules.IRepository");
           var Repository = Assembly.Load("MyMVC3.Modules.Repository");
           //根据名称约定（服务层的接口和实现均以Service结尾），实现服务接口和服务实现的依赖
builder.RegisterAssemblyTypes(IServices, Services)
             .Where(t => t.Name.EndsWith("Service"))
             .AsImplementedInterfaces();
           //根据名称约定（数据访问层的接口和实现均以Repository结尾），实现数据访问接口和数据访问实现的依赖
builder.RegisterAssemblyTypes(IRepository, Repository)
             .Where(t => t.Name.EndsWith("Repository"))
             .AsImplementedInterfaces();
//或者

Assembly serviceAss = Assembly.Load("Elight.Service");
Type[] serviceTypes = serviceAss.GetTypes();
builder.RegisterTypes(serviceTypes).Where(t => t.Name.EndsWith("Service")).AsImplementedInterfaces();//表示注册的类型，以接口的方式注册

Assembly repositoryAss = Assembly.Load("Elight.Repository");
Type[] repositoryTypes = repositoryAss.GetTypes();
builder.RegisterTypes(repositoryTypes).Where(t => t.Name.EndsWith("Repository")).AsImplementedInterfaces();

       }

Assembly.LoadFile只载入相应的dll文件，比如Assembly.LoadFile("a.dll")，则载入a.dll，假如a.dll中引用了b.dll的话，b.dll并不会被载入。
Assembly.LoadFrom则不一样，它会载入dll文件及其引用的其他dll，比如上面的例子，b.dll也会被载入。

privateIUserInfoRepository productRepository;
        publicUserInfoService(IUserInfoRepository productRepository)
        {
            this.productRepository =productRepository;
            this.AddDisposableObject(productRepository);
        }

4.2UserInfoService

publicIUserInfoService userService;
      publicHomeController(IUserInfoService userService)
      {
          this.userService =userService;
          this.AddDisposableObject(userService);
      }