通过编写一个商品信息管理的小系统，包括商品信息的添加、修改、删除、查看及分类查找来熟悉JSP + JavaBean的开发模式，附带数据库文件-Through the preparation of a small commodity information management system, including the commodity information to add, modify, delete, view and classification to find familiar with JSP+ JavaBean pattern of development, attached to database file