ajax的servlet

package com.liujinghe2.controller;

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

@WebServlet("/ajaxServlet")
public class AjaxServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        System.out.println("请求方式："+request.getMethod());
        response.setContentType("text/html;charset=utf-8");
        //获取请求参数
        String username = request.getParameter("username");
        //休眠5秒
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(username);
        //响应给浏览器
        response.getWriter().write("欢迎"+username);
    }
}