package PeriodicRefresh;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class demo1 extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=gb2312");
response.getWriter().write("这里是demo1");
response.getWriter().write("3秒后跳转demo2");
response.setHeader("refresh", "3;url='http://localhost:8080/xuebing/servlet/demo2'");
}
}
以上为定时跳转,可改为定时刷新
将response.setHeader行的url参数去掉,剩下“3”,即为3秒后当前页面刷新
在jsp页面当中
加入
response.setHeader("refresh", "3;url='http://localhost:8080/xuebing/servlet/demo2'");
即可