can't receive MQTT message using Paho under spring integration - spring-boot

Question

#Configuration
#SpringBootApplication
public class WyymqttApplication {
#Value("${spring.mqtt.username}")
private String username;
#Value("${spring.mqtt.password}")
private String password;
#Value("${spring.mqtt.url}")
private String hostUrl;
#Value("${spring.mqtt.client.id}")
private String clientId;
#Value("${spring.mqtt.default.topic}")
private String defaultTopic;
private static final Log LOGGER = LogFactory.getLog(WyymqttApplication.class);
public static void main(final String... args) {
SpringApplication.run(WyymqttApplication.class, args);
}
#Bean
public MqttConnectOptions getMqttConnectOptions() {
MqttConnectOptions mqttConnectOptions = new MqttConnectOptions();
mqttConnectOptions.setUserName(username);
mqttConnectOptions.setPassword(password.toCharArray());
mqttConnectOptions.setServerURIs(new String[]{hostUrl});
mqttConnectOptions.setKeepAliveInterval(2);
return mqttConnectOptions;
}
#Bean
public MqttPahoClientFactory mqttClientFactory() {
DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
factory.setConnectionOptions(getMqttConnectOptions());
return factory;
}
//publisher
#Bean
public IntegrationFlow mqttOutFlow() {
return IntegrationFlows.from(CharacterStreamReadingMessageSource.stdin(),
e -> e.poller(Pollers.fixedDelay(1000)))
.transform(p -> p + " sent to MQTT")
.handle(mqttOutbound())
.get();
}
#Bean
#ServiceActivator(inputChannel = "mqttOutboundChannel")
public MessageHandler mqttOutbound() {
MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler(clientId, mqttClientFactory());
messageHandler.setAsync(true);
messageHandler.setDefaultTopic(defaultTopic);
return messageHandler;
}
#Bean
public MessageChannel mqttOutboundChannel() {
return new DirectChannel();
}
#MessagingGateway(defaultRequestChannel = "mqttOutboundChannel")
public interface MqttGateway {
void sendToMqtt(String data, #Header(MqttHeaders.TOPIC) String topic);
}
// consumer
#Bean
public IntegrationFlow mqttInFlow() {
return IntegrationFlows.from(mqttInbound())
.transform(p -> p + ", received from MQTT")
.handle(logger())
.get();
}
private LoggingHandler logger() {
LoggingHandler loggingHandler = new LoggingHandler("INFO");
loggingHandler.setLoggerName("siSample");
return loggingHandler;
}
#Bean
public MessageProducerSupport mqttInbound() {
MqttPahoMessageDrivenChannelAdapter adapter = new MqttPahoMessageDrivenChannelAdapter("siSampleConsumer",
mqttClientFactory(), defaultTopic);
adapter.setCompletionTimeout(5000);
adapter.setConverter(new DefaultPahoMessageConverter());
adapter.setQos(1);
return adapter;
}
}
Here is my code.Above is my code, I use ActiveMQ as a broker. When I send a message on the command line, the message can be sent, but I can't receive it.
Messages like this:
2018-08-06 11:18:02.107 INFO 2508 --- [iSampleConsumer] siSample : hello stackoverflow sent to MQTT, received from MQTT