把实体从一个数据库复制到另一个数据库

方法1: 写代码从sessionFactory1中取实体,然后在sessionFactory2中保存实体 方法2: Session session1 = sessionFacory1.openSession(); Transaction tx1 = session1.beginTransaction(); Customer customer = (Customer)session1.get(Customer.class, 1L)); tx1.commit(); session1.close(); Session session2 = sessio