JSP获取服务器时间，页面倒计时显示

来源：互联网发布：linux 软件安装编辑：程序博客网时间：2024/05/18 02:48
<%@ page language="java" import="java.util.*"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html xmlns="http://www.w3.org/1999/xhtml"><head><%@ include file="/commons/meta.jsp"%><%@ include file="/commons/meta-et.jsp"%><% Calendar cal = Calendar.getInstance(); int hour = cal.get(cal.HOUR_OF_DAY); int minute = cal.get(cal.MINUTE); int month = cal.get(cal.MONTH); int date = cal.get(cal.DATE); int year = cal.get(cal.YEAR); int second = cal.get(cal.SECOND); %><script type="text/javascript" defer="defer">var NowHour = "";//Today.getHours(); var NowMinute = "";//Today.getMinutes(); var NowMonth = "";//Today.getMonth(); var NowDate = "";//Today.getDate(); var NowYear = "";//Today.getYear(); var NowSecond = "";//Today.getSeconds(); //获取服务端时间 function getTime(){ NowHour = <%=hour%>;NowMinute = <%=minute%>;NowMonth = <%=month%>;//NowMonth = (parseInt(NowMonth)+1); NowDate = <%=date%>;NowYear = <%=year%>;NowSecond = <%=second%>;} getTime(); startclock(); var timerID = null; var timerRunning = false; function showtime() {var time='${enddate}';//获取数据库中结束时间或开始时间，然后开始计算离开始或结束还差多少时间NowSecond = (parseInt(NowSecond)+1); //-------------------------------------------------------------------var a, a1, a2;var EndTime ;a = unescape('${enddate}').split(" ");  //这是注释，此句是倒计时准确度的关键，调整成其他需要的时间即可，例如2012-12-20等。if(a.length > 1){a1 = a[0].split("-");a2 = a[1].split(":");EndTime= new Date(a1[0], a1[1] - 1, a1[2], a2[0], a2[1],a2[2]);} var NowTime= new Date(NowYear,NowMonth,NowDate,NowHour,NowMinute,NowSecond); var nMS =EndTime.getTime() - NowTime.getTime();var nD =Math.floor(nMS/(1000 * 60 * 60 * 24));var nH=Math.floor(nMS/(1000*60*60)) % 24;var nM=Math.floor(nMS/(1000*60)) % 60;var nS=Math.floor(nMS/1000) % 60;var dddd= nD+'-'+nH+'-'+nM+'-'+nS;if(nD>= 0){document.getElementById('RemainD').innerText = nD;document.getElementById('RemainH').innerText = nH;document.getElementById('RemainM').innerText = nM;document.getElementById('RemainS').innerText = nS;}else {document.getElementById('CountMsg').innerText="所有时间到！"; }setTimeout("showtime()", 1000); } function startclock() { showtime(); //调用计算时间差方法，并显示 }</script></head><body><div id="CountMsg">距离结束还剩<font color="red" size=5><strong id="RemainD">XX</strong>天<strong id="RemainH">XX</strong>时<strong id="RemainM">XX</strong>分<strong id="RemainS">XX</strong>秒</font></div></body></html>