jsp页码自动跳转 博客分类: javascriptjspjava开发总结 jsp页面自动跳转
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2024-03-14 19:06:47
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比如:
实现这样的一个功能就是当用户登录错误的时候 先跳转到错误页面 再自动跳转到登陆页面
一:使用js事件:
js代码1:
<script type="text/javascript"> function delayedRedirect(){ window.location = "login.jsp"; } </script> <body onLoad="setTimeout('delayedRedirect()',3000)"> <font color="red"></font> 三秒后跳转至 我的发帖 </body> </html>
js代码2:
js实现页面跳转:倒计时显示。
<script language=javascript> function out(obj){ var i = obj ; if(i==0) document.location.href="othorpage"; document.body.innerHTML = i; i--; setTimeout("out("+i+")",1000); } </script> <body onload="out(5);"> </body>
二:在jsp的head域内加 <meta http-equiv= "refresh " content= "要等待的时间;url=跳往地址 ">
<meta http-equiv="refresh" content="1;url=www.baidu.com"> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% request.setCharacterEncoding("utf-8"); 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 'personalDeleteTopicInfomation.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"> <meta http-equiv="refresh" content="1;url=www.baidu.com"> </head>
把如下代码加入<head>区域中
<meta http-equiv="refresh" content="5">
即可实现页面自动刷新。
三:在jsp内写Java代码:
<% response.setHeader("refresh", "3;URL=http://www.b1b8.net"); %>
四:
使用request对象请求转发request.getRequestDispatcher("login.jsp").forward(request,response);
或者使用response对象重定向response.sendRedirect("login.jsp");