VIP31/JavaWeb/servlet02/src/main/java/com/lc/servlet/ReqRespServlet.java

package com.lc.servlet;

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;

/**
 * ClassName: ReqRespServlet
 *
 * @Author 爱扣钉-陈晨
 * @Create 2024/2/21 9:34
 * @Version 1.0
 */
@WebServlet(value = "/req")
public class ReqRespServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        System.out.println(req);


        //请求数据
        String parameter = req.getParameter("username");

        System.out.println("username:"+ parameter);

        //响应数据
        resp.getWriter().write("hello "+ parameter + " !");
    }

}