我正在使用Paho的MQTT Java库来检测一些设备的状态。我面临着一个奇怪的问题，因为每隔5分钟我就会收到一个连接丢失的错误。顺便说一句，使用reconnect方法它工作得很好，但是为什么我会得到这个奇怪的事实呢？我正在使用@Singleton组件中的Java EE中的这些代码行，它在 Boot 时启动。

String id = MqttAsyncClient.generateClientId();
System.out.println("Mqtt " + id + " " + uuid + " " + topics);
MqttClient client = new MqttClient(mqttSettings.generateURI(), id, new MemoryPersistence());
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
connOpts.setAutomaticReconnect(true);
connOpts.setUserName(mqttSettings.getUsername());
connOpts.setPassword(mqttSettings.getPassword().toCharArray());
if (statement) {
    setStatement(uuid, connOpts);
}
client.setCallback(callback);
client.connect(connOpts);
System.out.println("Connected? "+client.isConnected());
client.subscribe(topics);
if (statement) {
    try {
        System.out.println("Publishing installation status online...");
        publishOnline(client);
    } catch (MqttException e) {
        System.out.println("MQTT local");
        e.printStackTrace();
    }
}
return client;