如何使用jsf上传文件？

Question

一个严重的限制是我不能使用Tomahawk或RichFaces或其他任何东西。

Answer 1

Apache-Commons提供了FileUpload的实现，用于符合JSR 53的servlet.http：//commons.apache.org/

Answer 2

If you're already on JSF 2.0 and Servlet 3.0, then you can create a custom component for that based on the plain vanilla Servlet 3.0 API: Uploading files with JSF 2.0 on Servlet 3.0 .

If you're still on Servlet 2.5 or older, then you need to do more work. Tomahawk has done perfect work with that, so I really don't see any reason why you don't want to make use of it. If the actual problem is that you can't get it to work at all or have somehow an aversion against "3rd party component libraries", then just don't try it the hard way. Using Tomahawk is pretty easy: Uploading files with JSF .