HelloWorldVertx.java

import io.vertx.config.ConfigRetriever;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.DeploymentOptions;
import io.vertx.core.Future;
import io.vertx.core.Verticle;
import io.vertx.core.Vertx;

public class HelloVerticle extends AbstractVerticle {

	/* `http.port` can not be allowed in ` ~/.bash_profile` on Mac */
	private static final String HTTP_PORT = "HTTP_PORT";
	
	@Override
	public void start(Future<Void> fut) throws Exception {

		
		// Retrieve the port from the configuration,
		// default to 8080.

		// int configPort = config().getInteger(HTTP_PORT, 8080);

		// System.out.println("configPort: " + configPort);

		// int finalPort = retriever.getCachedConfig().getInteger(HTTP_PORT, 8080);
		
		int finalPort = config().getInteger(HTTP_PORT, 8080);

		System.out.println("finalPort: " + finalPort);

		vertx.createHttpServer().requestHandler(r -> {
			r.response().end("<h1>Hello World ! </h1>");
		}).listen(finalPort, result -> {
			if (result.succeeded()) {
				fut.complete();
			} else {
				fut.fail(result.cause());
			}
		});
	}

	public static void main(String[] args) {
		
		Vertx vertx = Vertx.vertx();
		Verticle boxcloudVerticle = new HelloVerticle();

		// 
		
		// vertx.deployVerticle(boxcloudVerticle);

		// new JsonObject().put(HTTP_PORT, 10081)
		
		
		DeploymentOptions options = new DeploymentOptions().setConfig(ConfigRetriever.create(vertx).getCachedConfig());

		vertx.deployVerticle(boxcloudVerticle, options);

		System.out.println("启动...");
		
	}
}

https://www.techempower.com/benchmarks/#section=data-r14&hw=ph&test=json