Java从服务器上获取时间动态显示在jsp页面实现思路

%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
%@page import="java.text.SimpleDateFormat;"%>
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
html>
head>
base href="%=basePath%>">
title>My JSP 'index.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>
%
Calendar rightNow = Calendar.getInstance();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm");
%>
script language="javascript">
//从服务器上获取初始时间
var currentDate = new Date(%=new java.util.Date().getTime()%>);
function run()
{
currentDate.setSeconds(currentDate.getSeconds()+1);
var time = "";
var year = currentDate.getFullYear();
var month = currentDate.getMonth() + 1;
var day = currentDate.getDate();
var hour = currentDate.getHours();
var minute = currentDate.getMinutes();
var second = currentDate.getSeconds();
if(hour 10){
time += "0" + hour;
}else{
time += hour;
}
time += ":";
if(minute 10){
time += "0" + minute;
}else{
time += minute;
}
time += ":";
if(second 10){
time += "0" + second;
}else{
time += second;
}
document.getElementById("dt").innerHTML = year+"年"+month+"月"+day+"日" + time;
}
window.setInterval("run();", 1000);
/script>
div id="dt">自动显示时间。。。。/div>
/body>
/html>