基于REST服务的文件分片保存方法及其实现

为了实现文件的安全存储及共享，提出了一种基于REST服务的文件分片保存方法。该方法把一个文件分割成多个文件片，然后把这些文件片分别上传到公共云平台的不同位置，并能够根据用户的请求从云平台下载文件片进行文件的还原。这样即使一个文件片被盗，文件的信息也不会被窃取。本文基于REST 服务实现了文件的分片保存、还原以及基于角色的权限控制等功能。该方法进一步提升了文件的安全性，更利于实现文件的共享。关键词:

Approach for Storing File Pieces Based on Representational State Transfer Service

Forsecurefiles storageandsharing，thispaperproposesamethod to store files in pieces basedon Representational State Transfer （REST）services. Firstly， a file is divided into different pieces， which are uploaded to different locations of the common cloud platform， then the users can download the files from the cloud platform according to their requests. Even if one piece of the file is lost， it has little effect on the whole file information. This method realized the functions of storing and restoring of file pieces and role-based privilege controlling， improving the security of files and sharing.