的ASP.NET Web API返回200 OK时，它应该返回404 [英] ASP.NET Web Api returns 200 OK when it should return 404

问题描述

我有一个ASP.NET Web API项目控制器上的以下的操作方法：

I have the following action methods on a controller in an ASP.NET Web API project:

[Route("api/v2/project/{projectId}/stuff"), HttpGet]
public IHttpActionResult Get(int projectId)

[Route("api/v2/project/{projectId}/stuff/{id:guid}"), HttpGet]
public IHttpActionResult Get(int projectId, [FromUri] Guid id)

[Route("api/v2/project/{projectId}/stuff"), HttpPost]
public IHttpActionResult Post(int projectId, [Required] Stuff stuff)

[Route("api/v2/project/{projectId}/stuff/{id:guid}"), HttpPut]
public IHttpActionResult Put(int projectId, [FromUri] Guid blastId, Stuff stuff)

[Route("api/v2/project/{projectId}/stuff/{id:guid}"), HttpDelete]
public IHttpActionResult Delete(int projectId, [FromUri] Guid id)

由于JavaScript错误，我做了一个删除要求

api/v2/project/1234/stuff/undefined

即。而不是 GUID 的ID，我得到的字符串未定义。据我所知，这不应该与任何我的路线，但不是一个 404未找​​到（甚至不允许的405方法），我得到了一个 200 OK 作为响应。

i.e. instead of a GUID for the id, I got the string "undefined". As far as I can tell, this shouldn't match any of my routes, but instead of a 404 Not found (or even 405 Method not allowed), I got a 200 OK as response.

我将在每一个上述的操作方法断点并重复使用招的要求，但没有一个断点被击中。我也尝试从的NuGet安装包WebApiRouteDebugger，但我们正在使用自定义控制器工厂，通过我们的DI容器挂钩的东西，所以我不能让它在所有的工作。我甚至尝试从我的全局注册过滤器之一抛出以下异常：

I set a breakpoint in each of these action methods and repeated the request using Fiddler, but none of the breakpoints was hit. I also tried installing the WebApiRouteDebugger package from nuget, but we're using a custom controller factory which hooks things up through our DI container, so I couldn't get it to work at all. I even tried throwing the following exception from one of my globally registered filters:

throw new Exception(actionContext.ControllerContext.ControllerDescriptor.ControllerName +
" " + actionContext.ActionDescriptor.ActionName);

但删除要求仍然通过去 200 OK （无要求有效的网址似乎这样做）。

but the DELETE request still goes through to 200 OK (no requests to valid urls seem to do that).

我还能如何解决呢？可能是什么病根？

How else can I troubleshoot this? What could be the root cause?

推荐答案

在你的Global.asax.cs文件在您保护无效的Application_Start（对象发件人，EventArgs五）是，添加以下内容：

In your Global.asax.cs file where your protected void Application_Start(object sender, EventArgs e) is, add the following:

    protected void Application_BeginRequest(object sender, EventArgs e)
    {
    }

所有服务器的请求应该经过这里。

All server requests should come through here.

这些使用，如果不存在添加。

Add these using if not there.

using System.Web.Compilation;
using System.Reflection;

然后在开始请求调用添加此code，列出所有可用的路由。

Then in the begin request call add this code to list out all of the active routes.

        string Items = "";
        IEnumerable<Assembly> Assemblies = BuildManager.GetReferencedAssemblies().Cast<Assembly>();

        foreach (Assembly FoundAssembly in Assemblies)
        {
            string AssemblyName = FoundAssembly.FullName;
            IEnumerable<TypeInfo> Types = FoundAssembly.DefinedTypes.Where(type => type != null && type.IsPublic && type.IsClass && !type.IsAbstract && typeof(ApiController).IsAssignableFrom(type));
            foreach (TypeInfo ControllerType in Types)
            {
                System.Web.Http.Controllers.ApiControllerActionSelector ApiControllerSelection = new System.Web.Http.Controllers.ApiControllerActionSelector();
                System.Web.Http.Controllers.HttpControllerDescriptor ApiDescriptor = new System.Web.Http.Controllers.HttpControllerDescriptor(new System.Web.Http.HttpConfiguration(), ControllerType.Name, ControllerType);
                ILookup<string, System.Web.Http.Controllers.HttpActionDescriptor> ApiMappings = ApiControllerSelection.GetActionMapping(ApiDescriptor);

                foreach (var Maps in ApiMappings)
                {
                    foreach (System.Web.Http.Controllers.HttpActionDescriptor Actions in Maps)
                    {
                        Items += "[ controller=" + ControllerType.Name + " action=" + ((System.Web.Http.Controllers.ReflectedHttpActionDescriptor)(Actions)).MethodInfo + "]";
                    }
                }
            }
        }

这将列出所有控制器和他们的签名。如果您的网址不适合任何这些你可能要展开列表，包括非控制器的路线。

This will list all controllers and their signatures. If your URL does not fit into any of these you may have to expand the list to include non controller routes.

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