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jsp&servlet——session监听

2018年02月11日  | 移动技术网IT编程  | 我要评论

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session监听,需要实现HttpSessionAttributeListener接口

attributeAdded:监听添加session

attributeRemoved:监听删除session

attributeReplaced:监听修改session

 1 package com.gxy.Listener;
 2 
 3 import javax.servlet.http.HttpSessionAttributeListener;
 4 import javax.servlet.http.HttpSessionBindingEvent;
 5 
 6 public class sessionAttributeListener implements HttpSessionAttributeListener {
 7 
 8     public void attributeAdded(HttpSessionBindingEvent httpSessionBindingEvent) {
 9         // TODO Auto-generated method stub
10         System.out.println("添加的属性名:"+httpSessionBindingEvent.getName()+",添加的属性值"+httpSessionBindingEvent.getValue());
11     }
12 
13     public void attributeRemoved(HttpSessionBindingEvent httpSessionBindingEvent) {
14         // TODO Auto-generated method stub
15         System.out.println("删除的属性名:"+httpSessionBindingEvent.getName()+",删除的属性值"+httpSessionBindingEvent.getValue());
16     }
17 
18     public void attributeReplaced(HttpSessionBindingEvent httpSessionBindingEvent) {
19         // TODO Auto-generated method stub
20         System.out.println("修改的属性名:"+httpSessionBindingEvent.getName()+",修改的属性值"+httpSessionBindingEvent.getValue());
21     }
22 
23 }

配置web.xml

1 <listener>
2     <listener-class>com.gxy.Listener.sessionAttributeListener</listener-class>
3 </listener>

运行结果

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