如果進(jìn)入登入界面，點(diǎn)學(xué)生信息，學(xué)生信息模塊出現(xiàn)500錯(cuò)誤，并且報(bào)

org.hibernate.TransactionException: nested transactions not supported

這是因?yàn)門ransaction嵌套了，在程序的別的地方已經(jīng)開(kāi)啟了事務(wù)，不要重新開(kāi)啟，把開(kāi)啟的那個(gè)代碼注釋掉即可

????????????Session session = HibernateSessionFactory.getCurrentSession();
?? ??? ??? ?//tx = session.beginTransaction();
?? ??? ??? ?hql = "from Students";
?? ??? ??? ?Query query = session.createQuery(hql);
?? ??? ??? ?list = query.list();
?? ??? ??? ?session.getTransaction().commit();