权限菜单

http://paladin1988.iteye.com/blog/1739565#bc2316054

http://blog.csdn.net/seapen/article/details/624734?reload

http://gkuiyj.iteye.com/blog/1747729

http://www.iteye.com/magazines/82

http://littleant.iteye.com/blog/2067005