Abstract:
A file sharing system includes: a second, first user device and a cloud server. The first user device uploads a file and sharing information corresponding to the file, wherein the sharing information includes file recipient information of an application corresponding to the second user device. The cloud server receives the file and the sharing information, and transmits a first sharing message to the second user device according to the sharing information. The second user device transmits a request message to the cloud server for requesting the file according to the first sharing message. The cloud server authenticates the second user device according to the request message, and transmits a second sharing message to the application corresponding to the second user device according to the file recipient information when the authentication is successful. The second user device accesses the file according to the second sharing information of the application.