最简单的HTTP响应资源

package com.MXC.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;
import java.io.PrintWriter;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;



@WebServlet("/hello")
public class HelloServlet extends HttpServlet {
    @Override
    
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        
        resp.setCharacterEncoding("utf-8");
        resp.setContentType("text/plain");


        
        LocalDateTime now = LocalDateTime.now();
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyy-MM-dd HH:mm:ss");
        String s = now.format(formatter);

        
        PrintWriter writer = resp.getWriter();

        
        writer.println(s);


    }
}