1.查询应该用不着起事务的吧
2.List temp = session.createQuery("from Student q where q.user.Id=:userId order by q.studentId desc").setParameter("userId",user.getId()).list();
2.List temp = session.createQuery("from Student q where q.user.Id=:userId order by q.studentId desc").setParameter("userId",user.getId()).list();
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