Asp.net MVC web.config中的客户错误

Question

in my MVC web application I need a 404 page for all error. I have editing web.config file which this line:

<customErrors mode="On">
  <error redirect="/error/404" statusCode="404" /> 
</customErros>

It'work, but in browser url I see URL/error/404. How I can see the called URL?

Thanks.

Answer 1

The customErrors node is actually older than httpErrors so try this instead. Make sure you have these nodes in your web.config as children of the system.webServer node:

<httpErrors>
  <error statusCode="404" path="/error/404" responseMode="ExecuteURL" />
</httpErrors>

Alternatively you can do this two ways with customErrors : First is to amend the individual error node, the second is to change the customErrors node. I can't remember if one of these is now obsolete, however feel free to try both.

<error statusCode="404" path="/error/404" responseMode="ExecuteURL"/>

or

<customErrors mode="On" redirectMode="ResponseRewrite">

If the above aren't working something else would be up. Have you checked the IIS Logs?

Links

httpErrors Documentation

Custom Errors Element documentation (Archived)

Answer 2

I partial solve using Application_error in global.asax. I added this method

    protected void Application_Error(object sender, EventArgs e)
    {
        var exception = Server.GetLastError();
        var httpException = exception as HttpException;
        if (httpException != null && httpException.GetHttpCode() == 404)
        {
            Response.Clear();
            Server.ClearError();
            Response.TrySkipIisCustomErrors = true;

            IController controller = new CommonController();

            var routeData = new RouteData();
            routeData.Values.Add("controller", "Common");
            routeData.Values.Add("action", "PageNotFound");

            var requestContext = new RequestContext(
                 new HttpContextWrapper(Context), routeData);
            controller.Execute(requestContext);

        }
       }

This work fine. The problem is from controller: .ie if I don't find a db record, I want return a 404 error with default error page. I want also show in browser the original called url, not the redirect url. Using return View(); in controller, this not happen. How I can solve it? Thanks.