MyDemo.java

package vertxio.demo;
import io.vertx.core.AbstractVerticle;

public class MyDemo extends AbstractVerticle{

	public void start(){

		vertx.createHttpServer()			
		.requestHandler( req -> {
			String file = "C:/temp/dummy.txt";
			req.response()
				.putHeader("content-type", "text/plain")
				.sendFile(file)
				.setStatusCode(200)
				.setStatusMessage("Sent: "+file);
		}).listen(8080);
	}	
}