Get contents of cached jar

From: Robert Sullivan (r_sulliv_at_bellsouth.net)
Date: 03/29/04

  • Next message: David J Bush: "Re: Making an exe" 
    Date: Sun, 28 Mar 2004 19:17:38 -0500

    Here is a method that will access the contents of a cached jar if you are
    running as an applet.
    You can easily adapt it to return a collection or apply a filter on the
    filenames to return a
    collection of sound files or image files.

    public void getJarContents()
    {
          try
          {
             // Bootstrap access to the jar contents
             // get this class name from the class loader.
             URL thisURL = getClass().getResource("xxxxxx.class");
             System.out.println(thisURL);

             URLConnection connection = thisURL.openConnection();
             System.out.println(connection);

             if (connection instanceof JarURLConnection)
             {
                JarFile jar = ((JarURLConnection)connection).getJarFile();
                System.out.println("Jar: " + jar);
                Enumeration jarEntries = jar.entries();
                while(jarEntries.hasMoreElements())
                {
                   JarEntry e = (JarEntry) jarEntries.nextElement();
                   System.out.println("Jar entry: " + e.getName());
                }
             }
          }
          catch (Exception e)
          {
             e.printStackTrace();
          }
    }

  • Next message: David J Bush: "Re: Making an exe"