The invention provides a method for realizing
file sharing. The method comprises the following steps that: an authorized user selects certain file at a
client to set sharing, also selects a sharing person, and sends the setting information to a
Web server to require the sharing of the file to the sharing person; the
Web server stores the information of the sharing person of the file, generates a corresponding event and sends an event message to a message central
server; the message central
server stores and analyzes the event and converts the event into an instant communication message which is sent to an instant communication
server; and the instant communication server notifies a corresponding
client to receive the message through
network connection of instant communication according to a message
receiver list. The method has the advantages that the method realizes convenient fire sharing with other people, thereby saving bandwidth; meanwhile, through an instant communication
system, the method can instantly notify the sharing person the message that a shared file is available, so that the sharing person can be reminded instantly; thus, the method effectively prevents the shared file from being edited by a plurality of people so as to avoid
data loss.