个非常完成的java系统源代码，包括sqlserver数据库文件，还有后台管理系统，能帮助初学者理解和学习java系统，是初学者的好帮手。

-A very complete system of java source code, including sqlserver　files, as well as back-office systems, can help beginners to understand and learn java system, it is a good helper for beginners