HelloWorld.java

//
//  ========================================================================
//  Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.embedded;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;

public class HelloWorld extends AbstractHandler
{
    @Override
    public void handle( String target,
                        Request baseRequest,
                        HttpServletRequest request,
                        HttpServletResponse response ) throws IOException,
                                                      ServletException
    {
        // Declare response encoding and types
        response.setContentType("text/html; charset=utf-8");

        // Declare response status code
        response.setStatus(HttpServletResponse.SC_OK);

        // Write back response
        response.getWriter().println("<h1>Hello World</h1>");

        // Inform jetty that this request has now been handled
        baseRequest.setHandled(true);
    }

    public static void main( String[] args ) throws Exception
    {
        Server server = new Server(8080);
        server.setHandler(new HelloWorld());

        server.start();
        server.join();
    }
}