通过在JavaBean中封装事务逻辑，然后将JavaBean与JSP语言元素一起使用，很好实现了后台业务逻辑和前台表示逻辑的分离，使的JSP页面更加可读、易维护。-through JavaBean China Packaging business logic, and then JavaBean and JSP language elements used together to achieve a very good background and future business logic expressed logical separation, the JSP pages more readable, easy to maintain.