实现HttpSessionListener接口完成获取创建和销毁session的时间

柔情只为你懂 2022-06-11 08:43 185阅读 0赞

package com.starry.listenter;
    
    import java.util.Date;
    import javax.servlet.http.HttpSession;
    import javax.servlet.http.HttpSessionEvent;
    import javax.servlet.http.HttpSessionListener;
    /*
     * 
     */
    public class SessionListenter implements HttpSessionListener {
    
    	@Override
    	public void sessionCreated(HttpSessionEvent arg0) {
    		String date=new Date().toLocaleString();
    		HttpSession session=arg0.getSession();
    		System.out.println(date+"   创建session，id:"+session.getId());
    	}
    
    	@Override
    	public void sessionDestroyed(HttpSessionEvent arg0) {
    		String date=new Date().toLocaleString();
    		HttpSession session=arg0.getSession();
    		System.out.println(date+"   销毁session，id:"+session.getId());
    
    	}
    
    }

以下是监听的配置

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
      <display-name>webday06homework</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
    
      <listener>
      	<listener-class>com.starry.listenter.SessionListenter</listener-class> 
      </listener>
      
    </web-app>