JavaWeb-Refresh响应头

一.Refresh响应头：可以理解为定时的重定向，在指定的时间后发生页面的跳转

二.代码示例：

package cn.xxx.Servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DServlet extends HttpServlet {

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.getWriter().print("xxxx");
        //3秒之后跳转到/Demo01/EServlet
        response.setHeader("refresh", "3;URL=/Demo01/EServlet");
    }
}

package cn.xxx.Servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EServlet extends HttpServlet {
    
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.getWriter().print("XXX");
    }


}