<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8" import="java.util.Enumeration" %> application属性变化监听器测试

application属性变化监听器测试

<% application.setAttribute("姓名", "杜老师"); application.setAttribute("姓名", "杜兆将老师"); application.setAttribute("年龄", 52); out.println("属性名和属性值
"); Enumeration enema=application.getAttributeNames(); while(enema.hasMoreElements()){ String name=(String)enema.nextElement(); String value=application.getAttribute(name).toString(); out.println(""+name+"="+value+"
"); } out.println("参数名和参数值
"); enema=application.getInitParameterNames(); while(enema.hasMoreElements()){ String name=(String)enema.nextElement(); String value=application.getInitParameter(name); out.println(""+name+"="+value+"
"); } application.removeAttribute("姓名"); application.removeAttribute("年龄"); %>