Complete solution for ASP 3 404 error code return 302 problem

Transferred from: http://blog.csdn.net/mycloudke/article/details/9746333

404 Status Code:, meaning that when the user clicks on the page does not exist, improve the user experience, the search engine will abandon the index of the page.

302 Status Code: Search engine will continue to index, which will lead to a large number of different links to the same page, it will affect the search engine trust in the site.

http://www.cloudke.com.cn/with some parameters or nonexistent file names, then jumps to the custom error page, but the returned status is 302.

Workaround:

The first step:

Set the customerrors of Web. config to Off

[CSharp]View Plaincopy

1. <customerrors mode="Off" >
2. </customErrors>

Then handle the custom error message yourself and add the following code to the Global.asax.cs:

[CSharp]View Plaincopy

2. protected void Application_Error (Object sender, EventArgs e)
4. {
6. if (! request.islocal)// If you are testing locally, remove it!
8. {
10. Exception LastError = Server.GetLastError ();
12. if (lasterror! = null)
14. {
16. Response.statuscode = 404;
18. Response.WriteFile ("~/content/htmltemplate/notfound.htm"); outputs the contents of the Notfound.htm page. You can remove all HTML tags and enter "error" Directly .
20. Server.ClearError ();
22. }
24. }
26. }

~/content/htmltemplate/notfound.htm files can only be static files, so that you do not go to the ASP. NET MVC router.

After this preparation, found that there is still a problem, local access 404 can go to the custom page, but remote access is not, you need to configure IIS

Open error page, edit page 404

This file path is a custom error page 404.

OK, let's Test it again:

The test results are normal.