File transmission method

The invention relates to the related field of file transmission, in particular to a file transmission method, which is characterized in that data blocks are used as basic units of data transmission, and the data blocks have no successive relationship and can be independently transmitted in an out-of-order manner, so that a plurality of mutually independent message connections are allowed to be used for transmission; according to the message connection architecture design, all information between a receiving end and a sending end is continuously compressed, the compression effect is basically equivalent to that a file is firstly compressed and then is sent through a network, the compression is carried out during transmission, and the compression rate is generally higher than the network transmission rate when the network speed is relatively low, so that the compression efficiency is greatly improved. Therefore, extra time consumption caused by compression is avoided; according to the method, the WebSocket prot