Let's see what the open source system is used for these three websites, thanks

Everyone help to see what these three sites use is what open source system, thank you!
Http://www.oschina.net/project/tag/5/enterprise-app


Http://www.php-open.com/4.htm


http://www.oschina.com/p/67/

------Solution--------------------
The 1th one looks like struts, and it's 1 or 2 unclear.
The 2nd one is made with ASP.
The 3rd one is made with PHP.
My personal opinion is this.
------Solution--------------------
The first one is the Java structs I asked Os-china's sweet potato webmaster and he only a single server speed is very fast as JSP paging is done in a more distinctive

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