页面自动跳转，jsp

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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 'zidongtiaozhuan.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>
  <SCRIPT LANGUAGE="JavaScript">
var time = 4; //时间,秒

function Redirect(){
 window.location = "http://www.baidu.com";
}
var i = 0;
function dis(){
if(i<time){
     document.all.s.innerHTML = "还剩" + (time - i-1) + "秒";
     i++;
 }
}
timer=setInterval('dis()', 1000);//显示时间
timer=setTimeout('Redirect()',time * 1000); //跳转 

</SCRIPT>
<BODY>
<span id="s"></span>
</BODY>
</HTML>

--------------------------------------- 贵有恒，何必三更起五更眠。最无益，只怕一日曝十日寒。--------------------------------------------