RocketMQ發送消息異常顯示：RocketMQ Message hasn‘t been sent. Caused by No route info of this topic

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[http-nio-8083-exec-2] com.rocketmq.domain.impl.ProduceDomainImpl 消息發送結果:true
[rocketmq-produce:192.168.196.1:8083] 2022-01-13 09:46:48.664 ERROR 13856 [] [AsyncSenderExecutor_1] com.alibaba.cloud.stream.binder.rocketmq.integration.RocketMQMessageHandler RocketMQ Message hasn't been sent. Caused by No route info of this topic, default-topic
See http://rocketmq.apache.org/docs/faq/ for further details.      

1. 發送者沒有連接配接到 namesrv
2. Broker 子產品沒有正确連接配接到 namesrv
3. Broker 子產品不支援自動建立topic，并且topic沒有被手動建立過