hibernate通过HibernateCallback()调用底层session

    public List<Object[]> findElecCommonMsgListByCurrentDate(String currentDate) {        final String sql = "SELECT o.StationRun as stationRun,o.DevRun as devRun " +                     "FROM Elec_CommonMsg o " +                      "WHERE o.CreateDate = '" + currentDate + "'";        List<Object[]> list = (List<Object[]>)this.getHibernateTemplate().execute(new HibernateCallback(){            public Object doInHibernate(Session session)                    throws HibernateException, SQLException {                Query query = session.createSQLQuery(sql);                //也可以createSQLQuery(sql).addScalar("stationRun",Hibernate.STRING)                         //.addScalar("devRun",Hibernate.STRING);                //其中"addScalar"确定返回类型，值的注意的是，不管sql语句中选择返回多少的数据，一旦使用了addScalar方法，其它没有申明返回类型的数据都不会被返回                return query.list();            }        });        return list;    }