JSP购物车系统，首先分析用户上网购物的一般过程；介绍采用什么样的数据结构存储购物信息；写购物界面；完成向购物车添加物品的功能。

-JSP shopping cart system, the first analysis of the general process of shopping for Internet access　describes what kind of data structure to store shopping information　write shopping interface　finished adding items to the shopping cart feature.-