asp.net request. pathinfo implementation of URL rewrite _ practical tips

This approach is mentioned in the article "Skills/know-how: rewriting URLs in asp.net." To put it simply, we all know:

Copy Code code as follows:

Http://www.jb51.net/product.aspx?id=520 is certainly less friendly to search engines than
Http://www.jb51.net/product.aspx/520.htm

First cut a picture for everyone to see:

You see that you can get IDs, and the method you use is simple:
Request.pathinfo can get additional information about the URL extension, that is, you can get/520, but we just need that number.

Copy Code code as follows:

Request.PathInfo.Substring (1)