Document breaking point uploading method based on internet hypertext transfer protocol

Abstract

The present invention discloses a method for realizing the break-point upload of the document under the coding pattern of multipart / form-data which is based on the Internet HTTP. The method utilizes the multipart / form-data coding of generic form memu in the process of uploading the document and confirms the position of packing and uploading the document in a user-defined way; moreover, the initial position of the document flow packing can be amended in the process of uploading the document; in this way, only part of the document needing to be uploaded is provided and the uploaded part can be omitted; on the basis of no changing the present protocol, the client side can realize the break-point upload in the process of uploading the document. In this way, the problem of the repeated labor and the time waste caused by repeated upload because of the broken network in the process of the application of network of hard disk, album, web log, etc. can be effectively solved. In addition, the thought of the method can be also realized through Java, Delphi languages and C++ language.

Description

Technical field: [0001] The invention belongs to the application field of the Internet hypertext transfer protocol, and in particular relates to a file breakpoint upload method based on the Internet hypertext transfer protocol. Background technique: [0002] In today's highly developed Internet, file transfer has always been an important application technology in the network. With the birth of the http protocol, compared with the previous ftp protocol, it is more convenient, flexible and efficient than the latter in terms of file transfer technology. In the existing technology, the technical means of using the http protocol to carry out the file transfer of the broken-point resume download has already been widely used. This technology solves the problem of re-downloading the file caused by the network interruption when the client downloads the file from the server. trouble. However, with the development of server business functions, such as network hard disks, personal hom...

AI Technical Summary

Problems solved by technology

[0005] According to the above process, for the existing file upload technology using the http protocol, since the start position of the file transfer cannot be controlled during the transfer, if a file fails to be uploaded, it needs to be uploaded from the beginning if it needs to be re-transmitted. If the file is relatively large Or when the network speed is unstable, it is difficult to upload the file successfully

Of course, other network protocol application environments (such as FTP) can be used for file uploads, but this brings great inconvenience to web applications based on http protocol applications. At the same time, due to different network environments in various places, other protocols Or the upload method may be prohibited (for example, the company's LAN has blocked port 21 of FTP)

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