try {
            Class.forName("org.postgresql.Driver");
            Connection con = DriverManager.getConnection("jdbc:postgresql://172.10.10.3:5432/stepup380qty","stepup380qty","stepup380qty");
            String query = "select binarydata from ad_image where ad_image_id =" + id;
            Statement stm = con.createStatement();
            ResultSet rs = stm.executeQuery(query);
            rs.next();
            String img = rs.getString("binarydata");
            byte[] img2 = new byte[img.length()];
            InputStream imgstream = rs.getBinaryStream("binarydata");
            int index = imgstream.read(img2, 0, img.length());
            stm.close();
            response.reset();
            response.setContentType("image/jpg");
            response.getOutputStream().write(img2,0,img2.length);
            response.getOutputStream().flush();
            imgstream.close();
    }
    catch (SQLException e) {
        e.printStackTrace();
        }
    catch (Exception e) {
        e.printStackTrace();
        }
}