Question

我真的不明白我在这里做错了什么 - 由于某些原因IControllerFactory i注册没有被使用，我最终得到System.ArgumentException：

类型'Company.WebApi.Controllers.AController'没有默认值   构造

在System.Linq.Expressions.Expression.New（Type type）at   System.Web.Http.Internal.TypeActivator.Create [TBASE]（类型   instanceType）at   System.Web.Http.Dispatcher.DefaultHttpControllerActivator.GetInstanceOrActivator（HttpRequestMessage   请求，输入controllerType，Func`1＆amp;激活者）   System.Web.Http.Dispatcher.DefaultHttpControllerActivator.Create（HttpRequestMessage   请求，HttpControllerDescriptor controllerDescriptor，Type   controllerType）

在Global.asax.cs

中

protected void Application_Start()
{
    //DI-setup
    var container = new WindsorContainer().Install(new WebWindsorInstaller());

    //set custom controller factory
    var controllerFactory = container.Resolve<IControllerFactory>();
    ControllerBuilder.Current.SetControllerFactory(controllerFactory);

    //register cors
    container.Resolve<ICorsConfig>().RegisterCors(GlobalConfiguration.Configuration);

    //routes
    RegisterRoutes(RouteTable.Routes);
}

我的IControllerFactory基于本文http://keyvan.io/custom-controller-factory-in-asp-net-mvc，并按以下方式实施

public class ControllerFactory : IControllerFactory
    {
        private readonly IWindsorContainer _container;

        public ControllerFactory(IWindsorContainer container)
        {
            if(container == null)
                throw new ArgumentNullException("container");

            _container = container;
        }

        public IController CreateController(RequestContext requestContext, string controllerName)
        {
            if (string.IsNullOrEmpty(controllerName))
                throw new ArgumentNullException("controllerName");

            var componentName = GetComponentNameFromControllerName(controllerName);

            return _container.Resolve<IController>(componentName);
        }

        public SessionStateBehavior GetControllerSessionBehavior(RequestContext requestContext, string controllerName)
        {
            throw new NotImplementedException();
        }

        public void ReleaseController(IController controller)
        {
            _container.Release(controller);
        }

        static string GetComponentNameFromControllerName(string controllerName)
        {
            var controllerNamespace = typeof (CrudController<>).Namespace;
            return string.Format("{0}.{1}Controller", controllerNamespace, controllerName);
        }
    }

我一直盯着这几个小时，真的不明白为什么这不起作用。在调试时，除了构造函数之外，任何方法都不会遇到ControllerFactory。有人看到这里有什么不对或丢失吗？

（Setting ASP.NET MVC ControllerFactory has no effect没有回答我的问题）

编辑1 - 控制器

    public class AController : CrudController<AModel>
    {
        public AController(IAHandler aHandler) : base(aHandler)
        {
            ...
        }

        [HttpGet]
        public HttpResponseMessage GetByUser(string aId)
        {
            ...
        }
    }

    public abstract class CrudController<T> : ApiController
        where T : IModel, new()
    {
        protected CrudController(ICrudHandler<T> handler)
        {
            ...
        }

        [HttpGet]
        public HttpResponseMessage Get(string id)
        {
            ...
        }

        [HttpPost]
        public HttpResponseMessage Post(T input)
        {
            ...
        }

        [HttpPut]
        public HttpResponseMessage Put(T input)
        {
            ...
        }
    }

编辑2 - 安装程序

    public sealed class WebWindsorInstaller : IWindsorInstaller
    {
        private bool _installComplete;

        public void Install(IWindsorContainer container, IConfigurationStore store)
        {
            if(_installComplete)
                return;

            //register self for reuse
            container.Register(Component.For<IWindsorInstaller>().Instance(this));

            //controller factory
            container.Register(
                Component.For<IControllerFactory>().ImplementedBy<ControllerFactory>().LifeStyle.Singleton);

            //Handlers
            container.Register(
                Classes.FromAssemblyContaining<AHandler>().InSameNamespaceAs<AHandler>().WithService.
                    DefaultInterfaces());

            //Models
            container.Register(
                Classes.FromAssemblyContaining<AModel>().InSameNamespaceAs<AModel>().WithService.Self());

            //DI
            container.Register(Component.For<IWindsorContainer>().Instance(container));
            container.Register(Component.For<IDependencyResolver>().ImplementedBy<WindsorDependencyResolver>());

            //Controllers
            container.Register(Classes
                .FromAssemblyContaining<AController>()
                .BasedOn<IHttpController>()
                .LifestyleScoped());

            //repositories
            container.Register(
                Classes.FromAssemblyContaining<ARepository>().InSameNamespaceAs<ARepository>().WithService.
                    DefaultInterfaces());

            //cors
            container.Register(Component.For<ICorsConfig>().ImplementedBy<CorsConfig>());

            _installComplete = true;
        }
    }

Answer 1

从您问题中的错误消息看，您实际上想要注册WebAPI控制器。重要的是要注意这些与MVC控制器不同，并且不要使用相同的控制器工厂（您尝试使用它）。

有关如何为Web API控制器执行此操作的详细信息，请参阅Mark Seeman的帖子Dependency Injection in ASP.NET Web API with Castle Windsor。

ASP.NET MVC - 设置自定义IControllerFactory无效

1 个答案: