休眠不将对象保存在数据库中？

我没看到你这么忙

Session session = sessionFactory.openSession();session.save(mc);session.flush();session.close();

但最可取的是

Session session = factory.openSession();    Transaction tx = null;    try {        tx = session.beginTransaction();        session.save(mc);        tx.commit(); // Flush happens automatically    }    catch (RuntimeException e) {        tx.rollback();        throw e; // or display error message    }    finally {        session.close();    }