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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?

Hans
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  • Do you mean how to do this from within java code? – sinelaw Sep 25 '11 at 09:08
  • Yes, sorry, should have been a bit more clear then the tag – Hans Sep 25 '11 at 09:10
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    [What Have You Tried?](http://mattgemmell.com/2008/12/08/what-have-you-tried/) What *specific* problems have you struck? – Andrew Thompson Sep 25 '11 at 09:47
  • I have tried, and made success in extracting a file in itself, I want to extract one directory only from the jar. – Hans Sep 25 '11 at 09:51
  • I cant find a way to extract only that one directory. – Hans Sep 25 '11 at 09:57
  • Does this answer your question? [How to write a Java program which can extract a JAR file and store its data in specified directory (location)?](https://stackoverflow.com/questions/1529611/how-to-write-a-java-program-which-can-extract-a-jar-file-and-store-its-data-in-s) – Didier L Jun 22 '22 at 08:34

2 Answers2

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

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

Community
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fbahr
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