主要功能：商品管理，员工管理，供应商管理和管理员管理等
采用技术：DAO、POJO、MVC模式DAO. Servlet, JSP
本系统实现了商品管理、员工管理、供应商管理和管理员管理，管理员可以对上架商品、库存商品、新增商品、员工信息、员工、供应商、供应商分类进行的添加、删除、修改、查询操作。
超级管理员对一般管理员有修改、删除、添加权限，一般管理员对管理员模块只有查看和对自己信息进行修改的权限，如果没有登录对各种操作都是不能的。
表示层使用EL表达式获取数据，更有效的优化JSP页面，使用servlet获取所有请求，根据不同的请求调用相应的DAO方法处理数据，使用Javascr ipt进行信息的验证(Main functions: commodity management, employee management, supplier management, administrator management, etc

Adopted technology: Dao, POJO, MVC mode Dao. Servlet, JSP

The system realizes commodity management, employee management, supplier management and administrator management. The administrator can add, delete, modify and query the goods on the shelf, inventory goods, new goods, employee information, employee, supplier and supplier classification.

The super administrator has the right to modify, delete and add to the general administrator. The general administrator only has the right to view and modify his information to the administrator module. Without login, it is impossible to perform various operations.

The presentation layer uses El expressions to get data, optimizes JSP pages more effectively, uses servlets to get all requests, calls corresponding Dao methods to process data according to different requests, and uses Javascr ipt to verify information)