RequestAttributeListener类
package com.jiongmeng.listener;
import javax.servlet.ServletRequestAttributeEvent;
import javax.servlet.ServletRequestAttributeListener;
/**
* @Description: (request对象在attribute时的器)
* @author 囧囧 E-mail:666888999@qq.com
* jerry
* @date: 2017年11月8日 下午1:12:47
* <p>Copyright: Copyright (c) 2005-2017版权归囧萌软件科技公司所有</p>
* @version 创建时间:2017年11月8日 下午1:12:47
*/
public class RequestAttributeListener implements ServletRequestAttributeListener{
@Override
public void attributeAdded(ServletRequestAttributeEvent requestAttributeEvent) {
System.out.println("我是request对象的attributeAdded方法");
System.out.println("request对象中添加属性,名 = " + requestAttributeEvent.getName() + " 值 = " + requestAttributeEvent.getValue());
//System.out.println("请求参数hobby的值 = " + requestAttributeEvent.getServletRequest().getParameter("hobby"));
}
@Override
public void attributeRemoved(ServletRequestAttributeEvent requestAttributeEvent) {
System.out.println("我是request对象的attributeRemoved方法");
//打印的是删除前的值
System.out.println("request对象中删除属性,名 = " + requestAttributeEvent.getName() + " 值 = " + requestAttributeEvent.getValue());
// System.out.println("请求参数hobby的值 = " + requestAttributeEvent.getServletRequest().getParameter("hobby"));
}
@Override
public void attributeReplaced(ServletRequestAttributeEvent requestAttributeEvent) {
System.out.println("我是request对象的attributeReplaced方法");
//打印的是修改前的值
System.out.println("request对象中修改属性,名 = " + requestAttributeEvent.getName() + " 值 = " + requestAttributeEvent.getValue());
System.out.println("请求参数hobby的值 = " + requestAttributeEvent.getServletRequest().getParameter("hobby"));
}
}
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只要有的