static   public   void  zipDir(String dirName, String zipName) {
         try  {
            ZipOutputStream zos =  new  ZipOutputStream( new  FileOutputStream(zipName));
            zipDir(dirName, zos);
            zos.close();
        }  catch  (Exception e) {
            e.printStackTrace();
        }
    }

     public   static   void  zipDir(String dir2zip, ZipOutputStream zos) {
         try  {
            File zipDir =  new  File(dir2zip);
            String[] dirList = zipDir.list();
             byte [] readBuffer =  new   byte [ 2156 ];
             int  bytesIn =  0 ;
             for  ( int  i =  0 ; i < dirList.length; i++) {
                File f =  new  File(zipDir, dirList[i]);
                 if  (f.isDirectory()) {
                    String filePath = f.getPath();
                    zipDir(filePath, zos);
                     continue ;
                }
                FileInputStream fis =  new  FileInputStream(f);
                ZipEntry anEntry =  new  ZipEntry(f.getPath().substring(f.getPath().indexOf(File.separatorChar) +  1 ));
                zos.putNextEntry(anEntry);
                 while  ((bytesIn = fis.read(readBuffer)) != - 1 ) {
                    zos.write(readBuffer,  0 , bytesIn);
                }
                fis.close();
            }
        }  catch  (Exception e) {
            e.printStackTrace();
        }
    }

String path =  f.getPath().substring(f.getPath().indexOf(File.separatorChar) +  1 );
                path=path.replace("\\","/");
               
                ZipEntry anEntry =  new  ZipEntry(path);