一种Web 中快速传输大型文件的方法

实现了WEB应用程序中快速传输大型文件的机制．浏览器端采用HTML5标准中文件系统的访问特性，对上载的文件首先进行分片实现并行上传．服务器端采用CGI程序接收浏览器端上传的文件．后台管理服务对上传的分片文件进行管理．下载文件时通过CGI请求后台管理服务，按序发送文件分片．整个过程均不涉及文件分片的重组过程，减少了磁盘IO请求．与其它文件上传下载方式相比，本方法具有上下载文件大小无限制，传输速度高及不需要第三方控件等特点．

Approach for High-speed Transfer of Big File in Web

The paper implemented a mechanism for transferring big size file in high speed. The browser leverages Html5 to slice big file into pieces and upload files to web server asynchronously. The web server adopts CGI to handle incoming file pieces, and sends file pieces in order when the file is downloaded. The mechanism reduces I/O cost due to avoiding reunifying file pieces. Comparing other approaches, this method breaks through the limit to file size, transfers files in high speed, and features in no need of third-party plug-ins.