架构：Oracle推出开源轻量级Java微服务框架Helidon

package io.helidon.examples.quickstart.se.hello;

import io.helidon.webserver.Routing;
import io.helidon.webserver.ServerConfiguration;
import io.helidon.webserver.WebServer;
import io.helidon.microprofile.server.Server;

public class HelloWorldMain {

    /**
     * Start the server.
     * @param args not used.
     */
    public static void main(String[] args) {
        startServer();
    }

    /**
     * Start the server and print some info.
     */
    private static void startServer() {
        // Create a server configuration
        ServerConfiguration serverConfig = ServerConfiguration.builder()
                .port(8080)
                .build();

        // Create a server
        Server server = Server.create(serverConfig);

        // Add a service to the server
        Routing.Rules routingRules = server.routingBuilder()
                .any((req, res) -> {
                    res.headers()
                            .add("Content-Type", "text/plain");
                    res.send("Hello, World!");
                });

        // Start the server
        server.start(() -> System.out.println("Started Server"));
    }
}