系统权限管理设计

1、RBAC : http://baike.baidu.com/link?url=ODuZ0h5GZpRj_SCZGhUgfhMhyXtoWC3r5nAmHEJpkY10OgDu8y26dmcawVmrixhsZWR1eE1GKL52gLmnS-ui8q

2、http://blog.csdn.net/chexlong/article/details/37697555