sessionlistener.java

网上书城源代码~~在学习JAVA的时候做的

package com.briup.web.listener;

import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;

import com.briup.bean.ShoppingCart;

public class SessionListener implements HttpSessionListener {

	public void sessionCreated(HttpSessionEvent arg0) {
		// TODO Auto-generated method stub
		HttpSession session = arg0.getSession();
		ShoppingCart cart = new ShoppingCart();
		session.setAttribute("cart", cart);

	}

	public void sessionDestroyed(HttpSessionEvent arg0) {
		// TODO Auto-generated method stub
		HttpSession session = arg0.getSession();
		session.removeAttribute("cart");
	}

}