hibernate修改and删除

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  //修改    public static void main(String[] args) {        Configuration cfg = new Configuration().configure();        //session对象        SessionFactory factory = cfg.buildSessionFactory();        Session session = factory.openSession();        Transaction tx=session.beginTransaction();        Dog dog =new Dog();        dog.setId(1);        dog.setName("盼盼2222");        session.merge(dog);        tx.commit();        System.out.println("update ok!");        session.close();}

 //删除    public static void main(String[] args) {        Configuration cfg = new Configuration().configure();        //session对象        SessionFactory factory = cfg.buildSessionFactory();        Session session = factory.openSession();        Transaction tx=session.beginTransaction();        Dog dog=new Dog();        dog.setId(1);        session.delete(dog);        tx.commit();        session.close();}

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