hibernate同时保存一对多的两张表发生异常:Cannot add or update a child row
两张表:users(用户) orders(订单) 一个用户对应多个订单。
String msgUsersSave = userDao.save(users);
Users users2 = userDao.get(msgUsersSave );
orders.setUsers(users2);
ordersDao.save(orders);
抛出异常:Cannot add or update a child row: a foreign key constraint fails (`iscm`.`orders`, CONSTRAINT `FK404172792206059` FOREIGN KEY (`users_id`) REFERENCES `users` (`id`))
SSH 注解模式。service内有事务。