倒计时页面跳转、jsp 中如何使页面停留几秒后再转向其他页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>请勿重复提交您的信息！谢谢！</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">
	-->

<script type="text/javascript">
	var time = 4;

	function returnUrlByTime() {

		window.setTimeout('returnUrlByTime()', 1000);

		time = time - 1;

		document.getElementById("layer").innerHTML = time;
	}
</script>

</head>

<body  onload="returnUrlByTime()">
	
	<h3>请勿重复提交您的信息！谢谢！</h3>
	<b><span id="layer">3</span>秒后，转入输入界面。</b>
	
	<%
		//转向语句
		response.setHeader("Refresh", "3;URL=for_input.jsp");
	%>

</body>
</html>

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倒计时页面跳转、jsp 中如何使页面停留几秒后再转向其他页面

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