404 自定义重定向
您好，如果响应是 404，我正在尝试进行重定向，但它没有按预期工作，你们专家能看到这个问题吗？ 中的通用 404
它仍然会转到我的 Global.asax
protected void Application_BeginRequest(Object sender, EventArgs e)
{
if (Response.Status == "404 Not Found")
{
string notFound = "~/custom_notfound.aspx";
Response.Redirect(notFound);
}
}
UPDATE
到目前为止已尝试过
(Response.Status == "404 Not Found")
(Response.Status == "404")
(Response.StatusCode == 404)
Hello I am trying to do a redirect if the response is a 404 but it is not working as expected, can you experts see the issue?. It still goes to the generic 404
in my Global.asax
protected void Application_BeginRequest(Object sender, EventArgs e)
{
if (Response.Status == "404 Not Found")
{
string notFound = "~/custom_notfound.aspx";
Response.Redirect(notFound);
}
}
UPDATE
Tried so far
(Response.Status == "404 Not Found")
(Response.Status == "404")
(Response.StatusCode == 404)
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评论（4）
您还可以使用 web.config 自定义错误部分 - 如图所示这里
例如在 system.web 部分中，
You can also use the web.config customerrors section - as shown here
e.g. In the system.web section,
我认为 BeginRequest 无法知道 404 错误。尝试改为实施 Application_Error 。检查 Server.GetLastError() 是否为 HttpException，如果是，请检查状态。
I don't think BeginRequest could know about 404 errors. Try implementing Application_Error instead. Check to see if Server.GetLastError() is an HttpException, and if so, check the status.
您可以添加到 web.config 中来执行此重定向，无需使用
Application_BeginRequest来处理此问题。请参阅此 服务器故障问题。
如果您无法使用 web.config，那么我会将您的启动页面设置为不存在的页面，在 BeginRequest 中放置一个断点，调试应用程序并查看请求以了解如何确定它是 404。这样就更容易确定最佳解决方案。
进一步研究一下，有一个 HttpStatusCode在 HttpWebResponse 类中使用。因此，使用应用程序的不同覆盖来获取默认响应，然后根据枚举检查其状态可能是有意义的。
You could add to your web.config to do this redirection, you don't need to use
Application_BeginRequestto handle this.See this ServerFault question.
If you can't use the web.config then I would set your startup page to one that doesn't exist, put a breakpoint in your BeginRequest, debug the app and look at the request to see how to determine it is a 404. That would be much easier to determine the optimal solution.
Looking into this some more, there is a HttpStatusCode that is used in the HttpWebResponse class. So it may make sense to use a different override of the Application to get the default response, and then check it's status against the Enum.
您还可以使用 web.config
You can also use the web.config