访问jar中的文件

public void initIcons() {
        try
        {
            InputStream ins = this.getClass().getResourceAsStream(ICON_LIST_FILE);
            byte[] data = new byte[ins.available()];
            int count = ins.read(data);
            String list = new String(data, 0, count);
            StringTokenizer tokens = new StringTokenizer(list);
            while (tokens.hasMoreTokens())
            {
                String icon = tokens.nextToken();
                ......
            }
        }
        catch (Exception e)
        {
        }
    }