Get Filename from Byte Array

Question

We can extract the mimetype from byte array, eg, by using Apache Tika.

Is it possible to get Filename from Byte Array.

Answer 1

不可以。您可以从内容数据本身猜测一个模仿类型，但是文件名不在其中。

Answer 2

The header field that you may be looking for is called Content-Disposition . If you're downloading an attachment, then there may be a file name in that field:

Content-Disposition: attachment;filename=abc.txt

But there's no guarantee that you'll have such a file name available. Also, this may only apply to HTTP and E-Mail content. From your question, it's not clear where your data's origin is...