liruhui opened a new issue #2428:
URL: https://github.com/apache/rocketmq/issues/2428
* look here
```java
rocketMQTemplate.sendMessageInTransaction("xxxxx","sendTranscationMessage",message,null);
```
* error info
```json
{
"timestamp": 1605257379871,
"status": 500,
"error": "Internal Server Error",
"message": "Can not found MQProducer 'xxxxx' in cache! please define
@RocketMQLocalTransactionListener class or invoke
createOrGetStartedTransactionMQProducer() to create it firstly",
"path": "/sendTranscationMessage"
}
```
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