说明：  速动画教程第十七集 jsf + spring + hibernate 开发示例 以下是用例图，用户可以进行以下操作：登录、浏览、注册、修改、删除、退出
(speed animation Guide Sets 17th jsf spring hibernate development is the following examples of cases map, users can do the following : Login, browsing, registration, change, delete, withdraw)