Extract directory from jar file

Question

I have searched for this for a while now, but cant seem to figure it out. I want to extract a directory from a jar/zip file, and save it recursively to a path on the filesystem in java. Anyone know how I might do this?

Answer 1

I know that the original question was actualy doing this programmatically.

But as it wasn't clear enough I guess many users (like me) ends up here when they just want to unzip a directory out of the jar using the jar command.

jar -xvf   <your>.jar  <required-dir>

E.g. extract META-INF directory out of some.jar

jar -xvf   some.jar  META-INF

to list the content of the jar use

jar -tvf   some.jar  

Answer 2

An answer from this thread might give a good feeling how/where to start:

• How to extract Java resources from JAR and zip archive

Simply put, it's java.util.jar you're looking for.