The selected data encode by base64

[????????????]

hi,
 
  I select data from hbase, the result show like this:


+--------------+----------------------------------------------------------------------------+
|   row_key    |                                    dvb                         
            |
+--------------+----------------------------------------------------------------------------+
| [B@753e5e51  | 
{"ProgramName":"5rKz5YyX5Y2r6KeG","UserCheckIO":"MA==","watchLen":"Nw=="}  |
+--------------+----------------------------------------------------------------------------+



I save the data to hbase without base64.  The drill why show me base64 data? 
How can solve this problem?


Thank you very much!