Data transmission system and method, electronic equipment and readable storage medium

The invention discloses a data transmission system and method, electronic equipment and a readable storage medium. The system comprises a first switching node, a data switching network and a second switching node, wherein the first switching node is used for sending a request message of data transmission to the data switching network; the data exchange network is used for receiving the request message sent by the first exchange node and sending the request message to the second exchange node; the second switching node is used for receiving the request message sent by the data switching network, generating a response message based on the request message, and sending the response message to the data switching network; the data exchange network is also used for receiving the response message and sending the response message to the first exchange node; the first switching node is also used for receiving a response message sent by the data switching network and transmitting data to the second switching node; where