重定向
<%@ 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>Insert title here</title>
</head>
<body>
<select name="select" id="">
<option value="">====请选择====</option>
<option value="1">中国系统分析员</option>
<option value="2">系统测试员</option>
</select>
<%
//页面重定向程序代码
String url;
// url=request.getParameter("goaddress");
url="array.jsp";
if(url != null){
response.sendRedirect(url);
}
%>
</body>
</html>
定时刷新
<%@page import="java.text.SimpleDateFormat"%>
<%@page import="java.util.*"%>
<%@ 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>定时刷新页面</title>
</head>
<body>
<%
//设置刷新页面的时间，每隔3秒刷新一次
response.setIntHeader("refresh",3);
%>
<p>当前系统的时间是</p>
<%
Date date=new Date();
SimpleDateFormat sdf=new SimpleDateFormat("yyyy'年'MM'月'dd'日'hh'时'mm'分'ss'秒'");
out.println(date);
%>
<p>
<%
out.println(sdf.format(date));
%>
</p>
</body>
</html>