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在JSF中上传大文件

[英]Uploading large files in JSF

原文 2011-03-10 18:24:39 8 1 jsf/ file-upload/ large-files

I want to upload a file that is >16GB. 我想上传一个大于16GB的文件。 How can I do this in JSF? 如何在JSF中做到这一点？

1 个解决方案

When using HTTP, you'll face two limitations. 使用HTTP时，您将面临两个限制。 The one on the client side (webbrowser) and the one on the server side (webserver). 一个在客户端（Web浏览器），一个在服务器端（Web服务器）。 The average webbrowser (IE/FF/Chrome/etc) has a limit of 2~4GB, depending on the make/version/platform. 一般的网络浏览器（IE / FF / Chrome / etc）的限制为2〜4GB，具体取决于品牌/版本/平台。 You cannot control this from the server side on. 您无法从服务器端进行控制。 The enduser has to change the browser settings itself (sometimes this isn't possible at all). 最终用户必须自己更改浏览器设置（有时根本不可能）。 The average webserver (Tomcat/JBoss/Glassfish/etc) in turn has a limit of 2GB. 普通的Web服务器（Tomcat / JBoss / Glassfish / etc）则限制为2GB。 You can configure this, but this still won't and can't remove the limitation on the webbrowser. 您可以配置它，但这仍然不会并且无法消除对Web浏览器的限制。

Your best bet is FTP. 最好的选择是FTP。 If you want to do this by a webpage, consider an applet which utilizes Apache Commons Net FTPClient . 如果要通过网页执行此操作，请考虑使用Apache Commons Net FTPClient的小程序。 There are several ready-to-use opensource/commercial ones by the way. 顺便说一下，有几种现成的开放源代码/商业代码。

You however still need to take into account that the disk file system on the FTP server side supports that large files. 但是，您仍然需要考虑到FTP服务器端的磁盘文件系统支持该大文件。 FAT32 for example has a limit of 4GB per file. 例如，FAT32的每个文件限制为4GB。 NTFS and several *Nix file systems, however, can go up to 16EB. NTFS和多个* Nix文件系统最多可以达到16EB。