URL rewriting implemented by Asp.net request. pathinfo

This method is used in tip/tip: rewrite URL in ASP. NET. ArticleMentioned. To put it simply, everyone knows: CopyCodeThe Code is as follows: http://www.jb51.net/product.aspx? Id = 520 is certainly less friendly to search engines
Http://www.jb51.net/product.aspx/520.htm

Let's take a look at the following screenshot:

We can see that the ID can be obtained, and the method used is also very simple:
Request. pathinfo can get the additional information of the URL extension, that is,/520, but we only need that number.Copy codeThe Code is as follows: request. pathinfo. substring (1)