我正在尝试使用 ASP.NET WebAPI 设置 Castle Windsor。
我也在使用 Hyprlinkr 包（https://github.com/ploeh/Hyprlinkr），因此需要将一个 HttpRequestMessage 实例注入到我的控制器的依赖项之一中。
我正在关注 Mark Seemann 的这篇文章 - http://blog.ploeh.dk/2012/04/19/WiringHttpControllerContextWithCastleWindsor.aspx，但我发现虽然 API 运行，但当我调用它时，请求只是挂起。没有错误信息。就好像它处于一个无限循环中。它挂在我的自定义 ControllerActivator 中对 Resolve 的调用
我在想我的一些城堡注册错误。如果我删除了上面文章中提到的那些，那么我可以成功调用 API（尽管没有我需要解决的依赖关系）
有任何想法吗？
代码如下
//Global.asax
public class WebApiApplication : HttpApplication
{
private readonly IWindsorContainer container;
public WebApiApplication()
{
container =
new WindsorContainer(
new DefaultKernel(
new InlineDependenciesPropagatingDependencyResolver(),
new DefaultProxyFactory()),
new DefaultComponentInstaller());
container.Install(new DependencyInstaller());
}
protected void Application_Start()
{
GlobalConfiguration.Configuration.Services.Replace(typeof(IHttpControllerActivator), new WindsorCompositionRoot(this.container));
}
// installer
public class DependencyInstaller : IWindsorInstaller
{
public void Install(IWindsorContainer container, IConfigurationStore store)
{
container.AddFacility<TypedFactoryFacility>();
container.Register(
Component.For<ValuesController>()
.Named("ValuesController")
.LifeStyle.PerWebRequest,
Component.For<IResourceLinker>()
.ImplementedBy<RouteLinker>()
.LifeStyle.PerWebRequest,
Component.For<IResourceModelBuilder>()
.ImplementedBy<ResourceModelBuilder>()
.LifeStyle.PerWebRequest,
Component.For<HttpRequestMessage>()
.Named("HttpRequestMessage")
.LifeStyle.PerWebRequest
);
}
}
//Activator
public class WindsorCompositionRoot : IHttpControllerActivator
{
private readonly IWindsorContainer container;
public WindsorCompositionRoot(IWindsorContainer container)
{
this.container = container;
}
public IHttpController Create(
HttpRequestMessage request,
HttpControllerDescriptor controllerDescriptor,
Type controllerType)
{
var controller = (IHttpController)this.container.Resolve(controllerType, new { request = request });
request.RegisterForDispose(
new Release(
() => this.container.Release(controller)));
return controller;
}
// DependencyResolver
public class InlineDependenciesPropagatingDependencyResolver : DefaultDependencyResolver
{
protected override CreationContext RebuildContextForParameter(CreationContext current, Type parameterType)
{
if (parameterType.ContainsGenericParameters)
{
return current;
}
return new CreationContext(parameterType, current, true);
}
}
编辑****************附加信息****************
所以我设置了一个场景，控制器只将 HttpRequestMessage 作为 ctor 参数并发现：
这有效：
//controller
public class ValuesController : ApiController
{
private readonly HttpRequestMessage _httpReq;
public ValuesController(HttpRequestMessage httpReq)
{
_httpReq = httpReq;
}
//IHttpControllerActivator
public IHttpController Create(
HttpRequestMessage httpRequest,
HttpControllerDescriptor controllerDescriptor,
Type controllerType)
{
var controller = (IHttpController)this.container.Resolve(
controllerType, new { httpReq = httpRequest });
return controller;
但是，这不是。
//controller
public class ValuesController : ApiController
{
private readonly HttpRequestMessage _httpReq;
public ValuesController(HttpRequestMessage request)
{
_httpReq = request;
}
//IHttpControllerActivator
public IHttpController Create(
HttpRequestMessage request,
HttpControllerDescriptor controllerDescriptor,
Type controllerType)
{
var controller = (IHttpController)this.container.Resolve(
controllerType, new { request = request });
return controller;
即当匿名对象具有称为“请求”的属性并且控制器ctor arg称为“请求”时。它以某种方式使控制器认为它的请求属性为空。这就是导致我看到的错误的原因：
无法重用“ApiController”实例。'ApiController' 必须为每个传入消息构建。检查您的自定义“IHttpControllerActivator”并确保它不会制造相同的实例。
在 System.Web.Http.ApiController.ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancelToken) 在 System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsyncInternal(HttpRequestMessage 请求, CancellationToken cancelToken) 在 System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync(HttpRequestMessage请求，CancellationToken 取消令牌）
阅读此内容 如何在不调用 setter 注入的情况下丰富 StructureMap 中的对象组合？
它解释了一个类似的场景。
当然，hyprlinkr 的 HttpRequestMessage 的 ctor arg 称为“request”，所以我确实需要使用该属性名称指定 anon 对象。
有任何想法吗？