winneryong

夢魘

test

public ? static ? void ?main(String?args) {

??????EntityManager?em? = ?emf.createEntityManager();

????????em.getTransaction().begin();

????????List < Teacher > ?allTeachers? = ?em.createQuery(

???????????????? " select?teacher?from?Teacher?teacher " ).getResultList();

???????? for ?( int ?i? = ? 0 ;?i? < ?allTeachers.size();?i ++ )? {

????????????Teacher?teacher? = ?allTeachers.get(i);

????????????System.out.println(teacher);

???????????? for ?( int ?j? = ? 0 ;?j? < ?teacher.getStudents().size();?j ++ )? {

????????????????System.out.println( " ???? " ? + ?teacher.getStudents().get(j));

????????????}

????????}

????????em.getTransaction().commit();

????????em.close();

}

posted on 2006-07-26 10:43 愛生活愛JAVA 閱讀(48) 評論(0) 編輯收藏