File downloading and uploading method and device

A file and file block technology, applied in the transmission system, electrical components, etc., can solve the problems of wasting network resources and long transmission time, and achieve the effect of reducing the waste of resources and reducing the time of file transmission
CN102739791AActive Publication Date: 2012-10-17360 TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
360 TECH GRP CO LTD
Publication Date
2012-10-17

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Abstract

The invention provides a file downloading and uploading method and device, which aims at solving the problems of the prior art that the file transmission time is long and file transmission wastes network resources. The downloading method comprises the steps of: sending a file request to a server, wherein the file request includes a name of the file requesting downloading; receiving file description information sent by the server, wherein the file description information includes the characteristic values of file blocks formed by dividing the file requesting downloading; detecting whether the characteristic values of the file blocks stored locally are consistent with those of the received file blocks, and adding the inconsistent characteristic values into detection information to return to the server; and receiving the file blocks corresponding to the inconsistent characteristic values, sent by the server. According to the file downloading and uploading method and device provided by the invention, the file blocks corresponding to inconsistent characteristic values stored locally can only be downloaded, thus, the file transmission time is shortened and resource waste is reduced.
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Description

technical field

[0001] The present application relates to data storage technology, in particular to a method and device for downloading files, and a method and device for uploading files. Background technique

[0002] The development of the network allows users to share the same data resources in different places as long as they are connected to the network. Users can transfer files through the network, upload files stored locally to the network, and download files stored on the network to the local.

[0003] However, in actual processing, when the file is transferred, sometimes the new version and the old version of the file will be replaced. For example, when the configuration files of some software are upgraded, the configuration files stored on the server can be downloaded to the local. For another example, when using an office computer and a home computer for office work, the user uses the home computer to continue modifying work files at home, and can upload the modi...

Claims

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