Vertx入门篇-02 - Hello Verticle

1、添加POM相关依赖

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>io.vertx</groupId>
                <artifactId>vertx-stack-depchain</artifactId>
                <version>3.6.2</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>io.vertx</groupId>
            <artifactId>vertx-core</artifactId>
        </dependency>
    </dependencies>

2、新建MainVerticle

package io.vertx.demo;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.Future;

public class MainVerticle extends AbstractVerticle {
    @Override
    public void start(Future<Void> startFuture) throws Exception {
        vertx.createHttpServer().requestHandler(req -> {
            req.response()
                    .putHeader("content-type", "text/plain")
                    .end("Hello from Vert.x!");
        }).listen(8080, http -> {
            if (http.succeeded()) {
                startFuture.complete();
                System.out.println("HTTP server started on http://localhost:8080");
            } else {
                startFuture.fail(http.cause());
            }
        });
    }
}

3、运行MainVerticle，如下配置

• MainClass : io.vertx.core.Launcher
• Program arguments : run io.vertx.demo.MainVerticle