springBoot+ssm餐厅店内点餐系统javaweb外卖配送餐馆饭店收银系统实现记录一下「代码实过程]

 @Transactional
    public int updateorder(Order order,String fids) {
        //删除订单中的所用菜品
        int i = orderMapper.deleteOrderDetail(order.getId());
        //建立新的关系
        String[] split = fids.split(",");
        for(String fid : split){
            orderMapper.saveFoodAndDetail(order.getId(),Integer.parseInt(fid));
        }
        return orderMapper.updateByPrimaryKeySelective(order);
    }

    public List findorderAllwjs() {
        Order o=new Order();
        o.setStatus(0);
        List orders = orderMapper.select(o);
        for(Order order : orders){
            order.setMember(memberMapper.selectByPrimaryKey(order.getMid()));
            order.setFoods(foodMapper.findFoodByOid(order.getId()));
        }
        return orders;