摘要：本文设计的是网上购物系统，首先介绍了网上购物系统的现状及开发背景，然后论述了系统的设计目标，系统需求和总体设计方案，较详细的论述了系统的详细设计和实现过程。最后，本文对网上购物系统进行了系统检测和总结。

　　本系统主要为用户提供了会员注册，购物车管理，商品搜索，用户资料修改等功能，为管理员提供了商品管理，新闻信息管理等功能。在设计方面，系统采用B/S三层结构，同时使用JSP技术进行动态页面的设计，从系统的安全性和代码的可重用性方面考虑，运用PHP对程序的关键代码进行封装。后台数据库选用MYSQL数据库。

关键词：网上购物； B/S模式； PHP； MYSQL

Abstract:It was designed shop online system in this paper.The thesis has firstly introduced the practical situation and the developing background of the system. And then it has described the designing goal,system need and the whole designing plan, has described the process of the detailed design and reality of the system in detail. Finally, this thesis has been drawn about the system and summarized.

　　The system has mainly provided users with the following functions: membership registration、shopping cart management、goods search、information modify etc. It has also provided managers with goods management、news management and so on. It has been designed with B/S mode of three-tier structure, JSP technology in dynamic page design. Considering from the security and reusing code of the system, key codes has been secured by PHP technology. MYSQL database has been used as the background database.

Key Words ：Shop online;  B/S Mode;  PHP;  MYSQL