说明：  使用JSP和Java Bean来构建一个网上书店。本章介绍的例子可以分成两大部分，第一部分是普通程序，用于客户在网上选购图书，第二部分是管理程序，用于在服务器端处理客户的定单。
(use JSP and Java Bean to build an online bookstore. The chapter describes examples can be divided into two parts, the first part of the normal procedures for online customers to purchase books, the second part of the management process for the server-side processing of customer orders.)