Web组件重用与JavaBeans。具体有：JavaBean概述；通过JSP动作使用JavaBean；在Servlet中使用JavaBean；从脚本元素中访问JavaBean；JavaBean的其他特性；MVC设计模式简介-Web component reuse with JavaBeans. Specifically: JavaBean Overview　through the use of JSP action JavaBean　in Servlet using JavaBean　elements from the scr ipt to access JavaBean　JavaBean other characteristics　MVC Design Pattern Overview