package com.learn.day06.response;
import java.io.IOException;
import java.util.Random;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @ClassName: ResponseDemo5
* @Description: 设置页面自动刷新
* @author amosli
* @date 2013-10-16 下午11:57:08
*
*/
public class ResponseDemo5 extends HttpServlet {
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
test2(request, response);
}
public void test2(HttpServletRequest request, HttpServletResponse response) throws IOException {
//用meta标签模拟一个头
try {
String message = "<meta http-equiv='refresh' content='3;url=/servlet_learn_day06_0905/index.jsp'>恭喜您,注册成功!本页面将在３秒后自动跳转到首页!如果没有跳转请手动点击<a href=''>超链接</a>";
// 跳转,通过servletContext实现跳转
this.getServletContext().setAttribute("message", message);
this.getServletContext().getRequestDispatcher("/message.jsp").forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
public void test1(HttpServletResponse response) throws IOException {
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
response.setHeader("refresh", "3;url='/servlet_learn_day06_0905/index.jsp'");
response.getWriter().write("恭喜您,注册成功!本页面将在３秒后自动跳转到首页!如果没有跳转请手动点击<a href=''>超链接</a>");
}
public void test(HttpServletResponse response) throws IOException {
response.setHeader("refresh", "3");
String dataString = new Random().nextInt(10) + "";
response.getOutputStream().write(dataString.getBytes());
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
message.jsp
<%@ 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>
<%
String message= (String )application.getAttribute("message");
System.err.println(message);
out.write(message);
%>
</body>
</html>