计数用户在页面上停留时间
jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><jsp:useBean id="my" scope="page"></jsp:useBean><%session.setMaxInactiveInterval(11);Date now =new Date();if(session.isNew()){session.setAttribute("start",now);}else{my.countTime((Date)session.getAttribute("start"));} %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <title>My JSP 'index.jsp' starting page</title><meta http-equiv="refresh" content="100"><!-- 设置页面自动刷新时间--><!--<link rel="stylesheet" type="text/css" href="styles.css">--> </head> <body> <table> <tr> <td align="center">您登陆的时间是：<%=((Date)session.getAttribute("start")).toLocaleString()%></td> </tr> <tr> <td align="center"> 您在本页停留时间为：<%=my.getH() %>小时<%=my.getM() %>分钟<%=my.getS() %>秒 </td> </tr> </table> </body></html>??
java
package hs.times;import java.util.Date;public class StopTime {private int h=0;private int m=0;private int s=0;public void countTime(Date date){Date da =new Date();long much=da.getTime()-date.getTime();h=(int)(much/1000/60/60);much =much-h*60*60*1000;m=(int)(much/1000/60);much=much-m*60*1000;s=(int)(much/1000);}public int getH() {return h;}public void setH(int h) {this.h = h;}public int getM() {return m;}public void setM(int m) {this.m = m;}public int getS() {return s;}public void setS(int s) {this.s = s;}}?
在项目中部署直接运行就行了