MVC 6 404未找​​到 [英] MVC 6 404 Not Found

问题描述

而不是得到一个HTTP 404响应的，我想有一个通用的404页面未找到（HTTP 200）。我知道你可以设置起来MVC 5以

Instead of getting a HTTP 404 response, I'd like to have a generic 404 Not Found page (HTTP 200). I know you can set that up in MVC 5 with

<customErrors mode="On">
  <error statusCode="404" redirect="~/Error/NotFound" />
</customErrors>

但我似乎无法弄清楚如何做到这一点的MVC 6.我猜应该是无论是在UseMvc路由表，或自定义中间件。

But I can't seem to figure out how to do this in MVC 6. I'm guessing it should be in either the UseMvc routing table, or a custom middleware.

推荐答案

Startup.cs：

Startup.cs:

public class Startup
{
    public void Configure(IApplicationBuilder app)
    {
        // PICK YOUR FLAVOR.

        // app.UseErrorPage(ErrorPageOptions.ShowAll);
        app.UseStatusCodePages(); // There is a default response but any of the following can be used to change the behavior.

        // app.UseStatusCodePages(context => context.HttpContext.Response.SendAsync("Handler, status code: " + context.HttpContext.Response.StatusCode, "text/plain"));
        // app.UseStatusCodePages("text/plain", "Response, status code: {0}");
        // app.UseStatusCodePagesWithRedirects("~/errors/{0}"); // PathBase relative
        // app.UseStatusCodePagesWithRedirects("/base/errors/{0}"); // Absolute
        // app.UseStatusCodePages(builder => builder.UseWelcomePage());
        // app.UseStatusCodePagesWithReExecute("/errors/{0}");
    }
} 

project.json：

project.json:

"dependencies": {
    "Microsoft.AspNet.Diagnostics": "1.0.0-*",
    // ....
}

请注意，如果你是在IIS（或天蓝色）主办的的web.config 确实还工作，它的也许大需要一些托管方案。 （它应该放在里面的wwwroot 文件夹

note that, if you are hosting on IIS (or azure), the web.config does still works and it's big maybe needed in some hosting scenarios. (it should be placed inside wwwroot folder

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