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try
  {
      pstmt = con.prepareStatement(sql);
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      FileInputStream in = new FileInputStream(f);
      pstmt.setBinaryStream(1, in, (int) (f.length()));
      pstmt.executeUpdate();£½£½£½£½ÕâÀﱨÁËÒì³£
    }
catch (Exception e)
    {
      e.printStackTrace(System.out);
      throw new DataAccessResourceFailureException(e.getMessage());
    }


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