Hibernate有关问题.大家帮帮小弟我

Hibernate问题...大家帮帮我啊

        <set name="MForums" inverse="true" order-by="adddate DESC">            <key>                <column name="threadid" length="2" not-null="true" />            </key>            <one-to-many name="code">ThreadMoudle tm = new ThreadMoudle ();Session session = HibernateSessionFactory.getSession();Transaction tran = session.beginTransaction();MThreads threads = (MThreads)session.get(MThreads.class, id);tm.threads = threads;for (MForum mf : threads.getMForums()) {tm.forum.add(mf);}tran.commit();HibernateSessionFactory.closeSession();