Spring-Boot MQTT配置

我需要将有效负载发送到许多名称是从数据库中选取的设备。然后，我必须发送不同的主题，就像settings/{put devicename here}。

以下是我使用的配置，这些配置是我从spring-boot参考文档中获得的。

MQTTConfiguration.java

@Configuration
@IntegrationComponentScan
public class MQTTConfiguration {

@Autowired
private Settings settings;
@Autowired
private DevMqttMessageListener messageListener;

@Bean
MqttPahoClientFactory mqttClientFactory() {
    DefaultMqttPahoClientFactory clientFactory = new DefaultMqttPahoClientFactory();
    clientFactory.setServerURIs(settings.getMqttBrokerUrl());
    clientFactory.setUserName(settings.getMqttBrokerUser());
    clientFactory.setPassword(settings.getMqttBrokerPassword());
    return clientFactory;
}

@Bean
MessageChannel mqttOutboundChannel() {
    return new DirectChannel();
}

@Bean
@ServiceActivator(inputChannel = "mqttOutboundChannel")
public MessageHandler mqttOutbound() {
    MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler("dev-client-outbound",
            mqttClientFactory());
    messageHandler.setAsync(true);
    messageHandler.setDefaultTopic(settings.getMqttPublishTopic());
    return messageHandler;
}

@MessagingGateway(defaultRequestChannel = "mqttOutboundChannel")
public interface DeviceGateway {
    void sendToMqtt(String payload);
}
}

在这里，我仅发送给1个主题。因此，我像下面那样添加了bean，以发送给多个主题；

@Bean
public MqttClient mqttClient() throws MqttException {
    MqttClient mqttClient = new MqttClient(settings.getMqttBrokerUrl(), "dev-client-outbound");
    MqttConnectOptions connOptions = new MqttConnectOptions();
    connOptions.setUserName(settings.getMqttBrokerUser());
    connOptions.setPassword(settings.getMqttBrokerPassword().toCharArray());
    mqttClient.connect(connOptions);
    return mqttClient;
}

我发送使用，

try {       
    mqttClient.publish(settings.getMqttPublishTopic()+device.getName(), mqttMessage);
    } catch (MqttException e) {
        LOGGER.error("Error While Sending Mqtt Messages", e);
    }

哪个有效。

但是我的问题是，我可以使用输出通道获得更好的性能吗？如果是，将不胜感激。谢谢你。