A basic example of using vertx-web and it's "router" functionality to handle HTTP requests.

WebServer.java

package com.mycompany.vertx.demo;

import io.vertx.core.AbstractVerticle;
import io.vertx.ext.web.Router;

public class WebServer extends AbstractVerticle {

    @Override
    public void start() throws Exception {
        Router router = Router.router(vertx);
        router.get("/").handler(routingContext -> {
            routingContext.response().end("Index Page");
        });
        router.route().handler(routingContext -> {
            routingContext.request().response().end("Hello Vert.x");
        });
        vertx.createHttpServer().requestHandler(router::accept).listen(8080);
    }
}