Copying directory from jar to the local folder

Question

I have Jar file which includes besides classes - folder with files. When i run a jar file on the other machine - the aim is to copy files from jar to some folder in that machine. Structure of jar:

/somepackage/
/MyFolder/

in code i do something like this:

copyDirectory("MyFolder", System.getProperty("user.home") + "\\myFolder");

it works only when i start program, but not outside jar.

Please help me to do it.

Answer 1

You could either manually copy the data out, or, if the data is read-only, just access it directly when needed (simplifying your runtime requirements).

In either case, you'd need to read the contents in the jar file: How do I read a resource file from a Java jar file?

If you really prefer having things in a local directory, you will need to iterate over all the files you care to have moved out and place them on the disk yourself.