package io.jeffchao.template.server; import java.io.IOException; import java.io.OutputStream; import java.net.InetSocketAddress; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpHandler; import com.sun.net.httpserver.HttpServer; public class Server { public static void main(String[] args) throws IOException { String portString = System.getenv("PORT"); int port = portString == null ? 8080 : Integer.valueOf(portString); HttpServer server = HttpServer.create(new InetSocketAddress(port), 0); server.createContext("/", new MyHandler()); server.setExecutor(null); // creates a default executor server.start(); } static class MyHandler implements HttpHandler { @Override public void handle(HttpExchange t) throws IOException { String response = "Hello from Gradle!"; t.sendResponseHeaders(200, response.length()); OutputStream os = t.getResponseBody(); os.write(response.getBytes()); os.close(); } } }