Java/Javascript Read Content-disposition File Content

For my web site, I need to get some data from an URL whose response headers contains Content-Disposition attribute which forces me to download the file. I would like to know how I

Solution 1:

Content-Disposition is just advisory. If you use a non-browser client (Java, curl, wget...) and do a GET request, you can just do whatever you want.

(I guess this means your question isn't sufficiently specific)