question: public static byte [ ] gzip ( String input ) { ByteArrayOutputStream baos = new ByteArrayOutputStream ( ) ; GZIPOutputStream gzos = null ; try { gzos = new GZIPOutputStream ( baos ) ; gzos . write ( input . getBytes ( "UTF-8" ) ) ; } catch ( IOException e ) { e . printStackTrace ( ) ; } finally { if ( gzos != null ) try { gzos . close ( ) ; } catch ( IOException ignore ) { } } return baos . toByteArray ( ) ; }
target:  GZip compress a string of bytes