 消费模式是这样的 ``` @RocketMQMessageListener(topic = MyProducer.TOPIC_NAME, consumerGroup = MyProducer.CONSUMER_GROUP_IN_ORDER, messageModel = MessageModel.CLUSTERING, consumeMode = ConsumeMode.ORDERLY, maxReconsumeTimes = 3, // 重试三次 selectorExpression = "tag_order") ```