在linux下测试mysql的java程序，简单的测试程序-Mysql in linux the java test program, a simple test procedure

一个简单的图书管理系统，适合于新手练手，更深刻的认识java与数据库的连接，数据库采用mysql（使用前请先恢复数据库）-A simple library management system, suitable for novice practiced hand, a more profound understanding of java and database connectivity, database using mysql (before use to restore the data