ASP. NET Custom 404 page

There are many methods on the web, but basically the same, this is just one of the methods, the pro-test is effective, the record may be useful later

1.

First write a 404 page 404.aspx under the project root directory

Then add in the configuration file

 <!--Note This mode, redirectmode default to responseredirect This mode will produce a 302 jump, very unfriendly to the crawler, so we use redirectmode= "Responserewrite" - <customErrorsMode= "On"Redirectmode= "Responserewrite" >      <ErrorStatusCode= "404"redirect= "~/404.aspx"/> </customErrors>

You can now complete the filtering of. aspx.

2. This time we enter ****/demo.html or jump to the 404 page of IIS

To support all the paths

Please enter IIS configuration

So all the paths have been supported

Reference: Http://blog.gkong.com/shotgun_174429.ashx

ASP. NET Custom 404 page