Message Tracing

We need two more configurations for support message trace in producer.

## application.properties
rocketmq.name-server=127.0.0.1:9876
rocketmq.producer.group=my-group

rocketmq.producer.enable-msg-trace=true
rocketmq.producer.customized-trace-topic=my-trace-topic

The message trace in consumer should configure in @RocketMQMessageListener.

@Service
@RocketMQMessageListener(
    topic = "test-topic-1", 
    consumerGroup = "my-consumer_test-topic-1",
    enableMsgTrace = true,
    customizedTraceTopic = "my-trace-topic"
)
public class MyConsumer implements RocketMQListener<String> {
    ...
}

Note:

Maybe you need change 127.0.0.1:9876 with your real NameServer address for RocketMQ

By default, the message track feature of Producer and Consumer is turned on and the trace-topic is RMQ_SYS_TRACE_TOPIC The topic of message trace can be configured with rocketmq.consumer.customized-trace-topic configuration item, not required to be configured in each @RocketMQMessageListener

For Alibaba Cloud message traces, you need to set the accessChannel configuration in @RocketMQMessageListener to CLOUD.