package com.rlovep.lister;

import javax.servlet.annotation.WebListener;
import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionBindingEvent;

/**
 * Application Lifecycle Listener implementation class SessionAttrList
 *
 */
@WebListener
public class SessionAttrList implements HttpSessionAttributeListener {

    /**
     * Default constructor. 
     */
    public SessionAttrList() {
    	System.out.println("sessionAttrList创建");
    }

	/**
     * @see HttpSessionAttributeListener#attributeAdded(HttpSessionBindingEvent)
     */
    public void attributeAdded(HttpSessionBindingEvent se)  { 
    	System.out.println("session域对象新增");
    }

	/**
     * @see HttpSessionAttributeListener#attributeRemoved(HttpSessionBindingEvent)
     */
    public void attributeRemoved(HttpSessionBindingEvent se)  { 
    	System.out.println("session域对象移除");
    	}

	/**
     * @see HttpSessionAttributeListener#attributeReplaced(HttpSessionBindingEvent)
     */
    public void attributeReplaced(HttpSessionBindingEvent se)  { 
         // TODO Auto-generated method stub
    	System.out.println("session域对象替换");
    }
	
}