Any free java VFS library?

Question

I'm looking for a free java library which will allow me to organize part of the file system as one physical file. I have , because I need an unique format which will be hard to parse for someone else, not zips, tars, etc. Is there any solution available? ，因为我需要一种独特的格式，很难为别人解析，而不是拉链，焦油等。有没有可用的解决方案？ Thanks for any suggestions.

Edit: random access to the content is also the priority

Answer 1

Consider the FS2 project . It was built as a simple answer to JSR 170. The API is lightweight, and implementing a custom persistence mechanism is easy.

Answer 2

我认为这个库是完美的JBOSS VFS3