code: public int queryObjJoinCountByCondition(String sql){
  		/*		JdbcTemplate jdbcTemplate = (JdbcTemplate) MicroDbHolder
  		.getDbSource(dbName);*/
  		JdbcTemplate jdbcTemplate = getMicroJdbcTemplate();
  		logger.debug(sql);
  		Integer total=jdbcTemplate.queryForObject(sql,Integer.class);
  		return total;
  	}
docs: /*
  锟斤拷锟絪ql锟斤拷询锟斤拷录锟斤拷