场景：我的NodeJS服务器上有一个端点来编辑订单文档上的退货地址。客户端和端点通信很好，当我通过控制台记录更新的订单文档时，地址甚至会更改，但它实际上从未保存在数据库中。以下是终结点：

const editShipsFromAddress = async (req, res) => {
  const { orderId, address, country, city, state, zipcode } = req.body;

  try {
    const order = await Order.findById(orderId);

    order.item.shipsFrom.address = address;
    order.item.shipsFrom.country = country;
    order.item.shipsFrom.state = state;
    order.item.shipsFrom.city = city;
    order.item.shipsFrom.zipcode = zipcode;

    const savedOrder = await order.save();

    console.log(savedOrder);

    return res.json('Address updated');
  } catch (err) {
    console.log(err);
    return res.status(500).json('Server error');
  }
};

所有订单都以order.Item作为空Obj开头。