How to get the path of a running JAR file?

Question

My code runs inside a JAR file, say foo.jar, and I need to know, in the code, in which folder the running foo.jar is.

So, if foo.jar is in C:\FOO\, I want to get that path no matter what my current working directory is.

Answer 1

return new File(MyClass.class.getProtectionDomain().getCodeSource().getLocation()     .toURI()).getPath(); 

Replace "MyClass" with the name of your class.

Obviously, this will do odd things if your class was loaded from a non-file location.

Answer 2

Best solution for me:

String path = Test.class.getProtectionDomain().getCodeSource().getLocation().getPath(); String decodedPath = URLDecoder.decode(path, "UTF-8"); 

This should solve the problem with spaces and special characters.