Hello World: Command Line

Hello World: Command Line

August 8, 2021

example java server

This example contains an HTML file and a servlet class:


<!DOCTYPE html>
    <title>Server Hello World: Command Line</title>
    <h1>Happy Coding</h1>
    <p>Hello world!</p>


package io.happycoding.servlets;

import java.io.IOException;

import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

public class HelloWorldServlet extends HttpServlet {

  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws IOException {
    response.getWriter().println("<h1>Hello world!</h1>");

You can view the directory here or download it as a zip file here.

See the Anatomy of a Web App tutorial for instructions on compiling and packaging this example.

Anatomy of a Web App Examples


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