Electric power internal and external network information interaction method based on cache database

The invention provides an electric power internal and external network information interaction method based on a cache database, and the method comprises the steps: predicting the occurrence probability of different historical request messages, and selecting a preset proportion of historical request messages; obtaining a response message of the selected historical request message, generating a cache identification code according to the MAC address of the extranet server and the request type of the historical request message, and binding and storing the response message and the cache identification code which correspond to each other in a cache database; acquiring a real-time request message, and generating a cache verification code according to the MAC address of the external network server and the request type of the real-time request message; and querying whether a cache identification code which is the same as the cache verification code exists in a cache database, and if so, directly sending the correspon