Ninject 问题...404 错误问题

Question

我们正在使用深受喜爱的 Ninject+Ninject.Web.Mvc 和 MVC 2，但遇到了一些问题。专门处理404错误。我们有一个日志服务，可以记录 500 个错误并将其记录下来。一切都进展顺利，除了当我们尝试输入不存在的控制器时。我们没有得到所需的 404，最终得到了 500 错误：

Cannot be null
Parameter name: service
[ArgumentNullException: Cannot be null
Parameter name: service]
   Ninject.ResolutionExtensions.GetResolutionIterator(IResolutionRoot root, Type service, Func`2 constraint, IEnumerable`1 parameters, Boolean isOptional) +188
   Ninject.ResolutionExtensions.TryGet(IResolutionRoot root, Type service, IParameter[] parameters) +15
   Ninject.Web.Mvc.NinjectControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +36
   System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +68
   System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +118
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +46
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +63
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +13
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8679426
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

我做了一些搜索，发现了一些类似的问题，但这些 404 问题似乎不相关。这里的任何帮助都会很棒。

谢谢！ 乔什

Answer 1

编辑：现在位于 MVC2 的主干中： http://github.com/enkari/ninject .web.mvc

controllerType 现在为 null，我们可以将它传递给基础并让 404 正常发生：

        protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
    {
        if(controllerType == null)
        {
            // let the base handle 404 errors with proper culture information
            return base.GetControllerInstance(requestContext, controllerType);
        }

        var controller = Kernel.TryGet(controllerType) as IController;

        if (controller == null)
            return base.GetControllerInstance(requestContext, controllerType);

        var standardController = controller as Controller;

        if (standardController != null)
            standardController.ActionInvoker = CreateActionInvoker();

        return controller;
    }

Answer 2

需要通过添加 404 来修改 NinjectControllerFactory.cs 源代码。我已经为有兴趣修复的任何人添加了源代码：

    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
    {
        if (controllerType == null)
            throw new HttpException(
                404, String.Format(
                         "The controller for path '{0}' could not be found " +
                         "or it does not implement IController.",
                         requestContext.HttpContext.Request.Path));

        var controller = Kernel.TryGet(controllerType) as IController;

        ...