学校的图书管理功能，主要有系统管理员，管理员，用户三个较色，界面参考了一些模板一般，可以作为ssh框架整合学习的例子-Schools library management functions, there are the examples of reference to some templates to the system administrator, the administrator, the user three more color, the interface in general

SSH学习项目，管理User对象，带有mysql及相关jar包(SSH learning project, managing User objects, with MySQL and related jar packages.)