Cross-public-cloud message obtaining method, device, equipment, system and medium

The invention discloses a cross-public-cloud message obtaining method, device, equipment, system and medium. The method comprises the following steps: monitoring an object storage space on the cloud; when it is monitored that a message obtaining trigger signal file appears in the object storage space on the cloud, a message obtaining task is created, the message obtaining trigger signal file is used for representing that the object storage space on the cloud receives a service message sent by a first application system, and the first application system is located in a first public cloud; executing a message obtaining task, and obtaining a service message corresponding to the message obtaining trigger signal file in the cloud object storage space; generating a service message based on a service message corresponding to the message acquisition trigger signal file; the service message is provided for a second application system, the second application system is located in a second public cloud, and the first pub