<%@ page language="java" import="java.util.*" pageEncoding="UTF-8" %> <!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" dir="ltr" lang="en-US" xml:lang="en"> <head> <title>404错误页面</title> <meta charset="utf-8"> <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" href="css/bootstrap.min.css" /> <style> body{background: url(images/404.jpg);background-size: cover;} .error{width: 100px;margin: 0 auto;} #count b{font-size: 65px;color:#BF3333;} </style> </head> <body> <div class="error"> <span id = "count"><b> 5 </b></span> <a class="btn btn-warning" href="index.html">点击返回</a> </div> <script type="text/javascript" src="js/jquery-1.6.4.js" ></script> <script type="text/javascript"> $(function() { var count = 5; setInterval(function() { count--; if (count <= 0) window.location.href = "index.html"; $("#count").html("<b>" + count + "</b>"); }, 1000); }); </script> </body> </html>
原文：http://www.cnblogs.com/dflmg/p/6382308.html