vertxmqtt +springboot 服务器代码
时间: 2023-08-03 18:01:02 浏览: 133
下面是一个使用 Spring Boot 和 Vert.x Mqtt 的服务器示例代码:
首先,确保你已经添加了 Spring Boot 和 Vert.x Mqtt 的依赖。在 pom.xml 文件中添加以下依赖:
```xml
<dependencies>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- Vert.x -->
<dependency>
<groupId>io.vertx</groupId>
<artifactId>vertx-core</artifactId>
<version>4.1.3</version>
</dependency>
<dependency>
<groupId>io.vertx</groupId>
<artifactId>vertx-mqtt</artifactId>
<version>4.1.3</version>
</dependency>
</dependencies>
```
然后,创建一个 Spring Boot 应用程序,并编写一个包含 Vert.x Mqtt 服务器的组件类:
```java
import io.vertx.core.Vertx;
import io.vertx.mqtt.MqttServer;
import io.vertx.mqtt.MqttServerOptions;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MqttServerApplication implements CommandLineRunner {
@Value("${mqtt.server.port}")
private int mqttServerPort;
public static void main(String[] args) {
SpringApplication.run(MqttServerApplication.class, args);
}
@Override
public void run(String... args) {
Vertx vertx = Vertx.vertx();
MqttServerOptions options = new MqttServerOptions()
.setPort(mqttServerPort);
MqttServer mqttServer = MqttServer.create(vertx, options);
mqttServer.endpointHandler(endpoint -> {
System.out.println("Client connected: " + endpoint.clientIdentifier());
endpoint.publishHandler(message -> {
System.out.println("Received message from client: " + message.payload().toString());
});
endpoint.accept(false);
});
mqttServer.listen(ar -> {
if (ar.succeeded()) {
System.out.println("Mqtt server started on port " + ar.result().actualPort());
} else {
System.err.println("Mqtt server failed to start: " + ar.cause().getMessage());
}
});
}
}
```
在上面的示例中,我们使用 `@Value` 注解从配置文件中获取 MQTT 服务器的端口号。你可以在 application.properties 或 application.yml 文件中定义该属性。
最后,运行 Spring Boot 应用程序,Vert.x Mqtt 服务器将在指定的端口上启动。当客户端连接到服务器并发布消息时,将显示相应的日志。
请根据你的实际需求进行适当的修改和扩展。记得在运行代码之前,确保已经正确配置了 MQTT 服务器的端口。
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