DBOperator.update("update candidate_exam set exam_image_face = ? where zkz_num = ? and exam_connection_code = ?",newObject[]{faceImage,zkzNum,examConnectionCode});
List<String>alreadyExistStudentIdCards=DBOperator.queryForList("select id_card from candidate_exam where exam_connection_code = ?",newObject[]{examConnectionCode},String.class);
DBOperator.update("update candidate_exam set candidate_connect_code = ? where id_card = ? and exam_connection_code = ?",newObject[]{data.get("candidateConnectCode").toString(),candidateExam.getIdCard(),candidateExam.getExamConnectionCode()});