页面跳转问题
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>信息安全工程学院</title>
</head>
<body>
<h1>你未选择学院,3秒后跳回选择页面</h1>
<%response.setHeader("refresh","3;uri=select.jsp"); %>
</body>
</html>
为什么不能跳转啊?