Java Annotation
please refer the following series blogs
http://www.cnblogs.com/peida/archive/2013/04/23/3036035.html
http://www.cnblogs.com/peida/archive/2013/04/24/3036689.html
http://www.cnblogs.com/peida/archive/2013/04/26/3038503.html
please refer the following series blogs
http://www.cnblogs.com/peida/archive/2013/04/23/3036035.html
http://www.cnblogs.com/peida/archive/2013/04/24/3036689.html
http://www.cnblogs.com/peida/archive/2013/04/26/3038503.html