import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.ServletException;

import java.io.IOException;

import org.eclipse.jetty.server.Server;

import org.eclipse.jetty.server.Request;

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

public class HelloWorld extends AbstractHandler

{

public void handle(String target,

Request baseRequest,

HttpServletRequest request,

HttpServletResponse response)

throws IOException, ServletException

{

response.setContentType("text/html;charset=utf-8");

response.setStatus(HttpServletResponse.SC_OK);

baseRequest.setHandled(true);

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

}

public static void main(String[] args) throws Exception

{

String port = System.getenv("PORT");

if(port == null) { port = "8080"; }

Server server = new Server(Integer.parseInt(port));

server.setHandler(new HelloWorld());

server.start();

server.join();

}

}