摘要： servlet, JavaBeans, EJB(Enterprise JavaBeans), web container, jee, j2ee, jspJavaBeans是遵循特定规范的java 类，这个规范是：The class must have a publicdefault constructor(no-argument). This allows easy instantiation within editing and activation frameworks.The classpropertiesmustbe accessible usingget,set,is(used fo 阅读全文