java-How to realize WeChat enterprise number reply to the message of WeChat service number

Javaphpspringmvcssh

For example, I send a message to "Hello" on the service number,
The content is sent to the enterprise number,
The enterprise number is based on the information received to reply,
The enterprise number sends a reply message to the service number,
The service number then presents the information to the user.

Generally we send a message to the service number, the service number to reply. But now I want to use the service number as a transit, send the message to the enterprise number, the enterprise number and then send the reply message as a transit service number, and then to the user to reply

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