超絶かんたんなHTTPサーバ実装(Java6 or later)

SampleServer.java

@Log4j2
public class SampleServer implements HttpHandler {
	public static void main(String[] args) throws Exception {
		SampleServer sample = new SampleServer();
		int port = 80;

		HttpServer server = HttpServer.create(new InetSocketAddress(port), 0);
		server.createContext("/" ,sample );
		server.start();
	}
	
	public void handle(HttpExchange exchange) throws IOException {
		OutputStream out = exchange.getResponseBody();

		log.debug("Remote : {}" , exchange.getRemoteAddress());
		log.debug("Method : {}" , exchange.getRequestMethod());

		byte[] b = (new String("ok")).getBytes();

		exchange.sendResponseHeaders(200, b.length);
		out.write(b);
	}
}