本文转自：http://www.zhangxinxu.com/wordpress/?p=987&jdfwkey=fzwmd
效果图
jsp页面
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'testTime.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
This is my JSP page. <br>
<span id="year">0</span>年 <span id="month">0</span>月 <span id="day">0</span>日 <span id="hour">0</span>时 <span id="mini">0</span>分 <span id="sec">0</span>秒
</body>
<script type="text/javascript" src="timeCountDown.js"></script>
<script type="text/javascript">
var zxx = {
$: function(id){
return document.getElementById(id);
},
futureDate: Date.UTC(2050, 6, 30, 12),
obj: function(){
return {
sec: zxx.$("sec"),
mini: zxx.$("mini"),
hour: zxx.$("hour"),
day: zxx.$("day"),
month: zxx.$("month"),
year: zxx.$("year")
}
}
};
fnTimeCountDown(zxx.futureDate, zxx.obj());
</script>
</html>
timeCountDown.js 代码，也可以在附件中下载：
/*
* 倒计时的实现
*/
var fnTimeCountDown = function(d, o){
var f = {
zero: function(n){
var n = parseInt(n, 10);
if(n > 0){
if(n <= 9){
n = "0" + n;
}
return String(n);
}else{
return "00";
}
},
dv: function(){
d = d || Date.UTC(2050, 0, 1); //如果未定义时间，则我们设定倒计时日期是2050年1月1日
var future = new Date(d), now = new Date();
//现在将来秒差值
var dur = Math.round((future.getTime() - now.getTime()) / 1000) + future.getTimezoneOffset() * 60, pms = {
sec: "00",
mini: "00",
hour: "00",
day: "00",
month: "00",
year: "0"
};
if(dur > 0){
pms.sec = f.zero(dur % 60);
pms.mini = Math.floor((dur / 60)) > 0? f.zero(Math.floor((dur / 60)) % 60) : "00";
pms.hour = Math.floor((dur / 3600)) > 0? f.zero(Math.floor((dur / 3600)) % 24) : "00";
pms.day = Math.floor((dur / 86400)) > 0? f.zero(Math.floor((dur / 86400)) % 30) : "00";
//月份，以实际平均每月秒数计算
pms.month = Math.floor((dur / 2629744)) > 0? f.zero(Math.floor((dur / 2629744)) % 12) : "00";
//年份，按按回归年365天5时48分46秒算
pms.year = Math.floor((dur / 31556926)) > 0? Math.floor((dur / 31556926)) : "0";
}
return pms;
},
ui: function(){
if(o.sec){
o.sec.innerHTML = f.dv().sec;
}
if(o.mini){
o.mini.innerHTML = f.dv().mini;
}
if(o.hour){
o.hour.innerHTML = f.dv().hour;
}
if(o.day){
o.day.innerHTML = f.dv().day;
}
if(o.month){
o.month.innerHTML = f.dv().month;
}
if(o.year){
o.year.innerHTML = f.dv().year;
}
setTimeout(f.ui, 1000);
}
};
f.ui();
};
找到了一个更简单的倒计时！
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>限时抢购倒计时间表</title>
<style type="text/css">
*{margin:0;padding:0;}
#content{width:300px;margin:0 auto;padding:10px;background:#eee;border:1px solid #999;}
#content p span{color:red;font:bold 20px Arial;}
#content p a{font:12px/23px '宋体';color:#888;}
.div1{ display:none;}
</style>
</head>
<body><div id="content">
<h1>限时抢购啦！</h1>
<p>还剩<span id="times"></span></p>
</div>
<SCRIPT LANGUAGE="JavaScript">
function fresh()
{
var endtime=new Date("2010/4/3,23:59:59");
var nowtime = new Date();
var leftsecond=parseInt((endtime.getTime()-nowtime.getTime())/1000);
d=parseInt(leftsecond/3600/24);
h=parseInt((leftsecond/3600)%24);
m=parseInt((leftsecond/60)%60);
s=parseInt(leftsecond%60);
document.getElementById("times").innerHTML=d+"天"+h+"小时"+m+"分"+s+"秒";
if(leftsecond<=0){
document.getElementById("times").innerHTML="抢购已结束";
clearInterval(sh);
}
}
fresh()
var sh;
sh=setInterval(fresh,1000);
</SCRIPT>
</body>
</html>