在web.config中使用httpErrors时未命中错误控制器

Question

I am struggling to setup the httpErrors section correctly in my web.config to capture both ASP.NET MVC errors and IIS errors . I am getting 403 status codes and blank pages. I am testing with 404 errors by typing incorrect URLS and file names in the URL, for example:

www.mywebsite.com/test
www.mywebsite.com/test.html

I am using the latest version of ASP.NET MVC 5 . This web application is running on IIS 7.5 with an application pool using integrated mode .

This is what my web.config looks like at the root of the application (this is all that I currently have):

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <appSettings>
        <add key="webpages:Version" value="3.0.0.0"/>
        <add key="webpages:Enabled" value="false"/>
        <add key="ClientValidationEnabled" value="true"/>
        <add key="UnobtrusiveJavaScriptEnabled" value="true"/>
    </appSettings>

    <system.web>
        <customErrors mode="Off" />
        <compilation debug="true" targetFramework="4.5.2"/>
        <httpRuntime targetFramework="4.5.2"/>
    </system.web>

    <system.webServer>
        <modules runAllManagedModulesForAllRequests="true" />
        <httpErrors errorMode="Custom" existingResponse="Replace">
            <remove statusCode="404" />
            <remove statusCode="500" />
            <error statusCode="404" responseMode="ExecuteURL" path="/Error/NotFound" />
            <error statusCode="500" responseMode="ExecuteURL" path="/Error" />
        </httpErrors>
    </system.webServer>

    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed"/>
                <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0"/>
            </dependentAssembly>
            <!-- ...and so forth... -->
        </assemblyBinding>
    </runtime>
</configuration>

My global.asax.cs file:

public class MvcApplication : HttpApplication
{
    protected void Application_Start()
    {
        AreaRegistration.RegisterAllAreas();
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }

    protected void Application_Error()
    {
        // Break point has been set here for testing purposes
    }

    protected void Application_EndRequest()
    {
        if (Context.Response.StatusCode == 404)
        {
            // Break point has been set here for testing purposes
        }
    }
}

My error controller:

public class ErrorController : Controller
{
    public ActionResult Index()
    {
        // Break point has been set here for testing purposes
        Response.StatusCode = 500;

        return View();
    }

    public ActionResult Forbidden()
    {
        // Break point has been set here for testing purposes
        Response.StatusCode = 403;

        return View();
    }

    public ActionResult NotFound()
    {
        // Break point has been set here for testing purposes
        Response.StatusCode = 404;

        return View();
    }
}

They have their corresponding views in the Views folder.

My break points are never hit in my error controller. I don't understand why? I have looked at many examples on Stackoverflow and this is how every suggests that I do it. When would the break points not be reached given my code? All that happens is a 403 error status and a BLANK white page. The break points in Application_Error() and Application_EndRequest() are hit, but not the break points in the error controller.

There is code that I can write in Application_Error() and Application_EndRequest() that lets me set the error controller and action method, but why do that if I can use the web.config? This should also work?

Answer 1

Man, you have mentioned statusCode as 404 then how can you expect as 200 OK ? :)

just remove Response.StatusCode = 404; line from action method

Bellow code should work

 public ActionResult NotFound()
    {
        return View();
    }