Students is not mapped [from Students]
按老师的代码写的，
Session session = MyHibernateSessionFactory.getSessionFactory().getCurrentSession();
tx = session.beginTransaction();
hql = "from Students";
// hql = "select * from Students";
Query query = session.createQuery(hql);
// Query query = session.createSQLQuery(hql);
list = query.list();
tx.commit();
return list;
会报错：Students is not mapped [from Students]，求助
