Re: Finding other classes in .jar from running program?

From:
Jan Burse <janburse@fastmail.fm>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 14 Sep 2014 01:48:43 +0200
Message-ID:
<lv2l4r$ofo$1@news.albasani.net>
Thx, was doing the other route for ages, i.e. picking a
resources path and unpacking the jar path, i.e.
lastIndexOf('!/'). Now consider changing my code.

I guess the topic is also discuss here:
http://stackoverflow.com/questions/320542/how-to-get-the-path-of-a-running-jar-file

Arne Vajh??j schrieb:

Something like:

import java.io.IOException;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

public class Available {
     private static String getLocation(Class<?> clz) {
         return
clz.getProtectionDomain().getCodeSource().getLocation().getPath();
     }
     public static void main(String[] args) throws IOException {
         String jarnam = getLocation(Available.class);
         System.out.println(jarnam);
         JarFile jarf = new JarFile(jarnam);
         Enumeration<JarEntry> e = jarf.entries();
         while(e.hasMoreElements()) {
             JarEntry je = e.nextElement();
             String clznam = je.getName().replace('/', '.');
             if(clznam.endsWith(".class")) {
                 System.out.println(clznam);
             }
         }
         jarf.close();
     }
}

Arne

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