毕业设计｜基于Spring Boot和Vue.js的前后端分离商城系统（二）

@Service
public class CartService extends BaseService<Cart,Long,CartRepository>  {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired
    private GoodsSkuRepository goodsSkuRepository;
    @Autowired
    private GoodsRepository goodsRepository;
    /**
     * 添加到购物车<br>
     * 1,这里需要考虑库存管控的问题
     * 2，实际项目中如果需要部署服务集群，那么下面synchronized关键字一点用是没有的，可以考虑使用分布式锁（zookeeper，redis等）来处理
     * @param cartVo
     * @return，添加新商品，返回1，添加购物车已经存在的商品，返回0
     */
    @Transactional
    public synchronized  Integer add(CartVo cartVo) {
        Integer count = cartVo.getCount();
        Long idSku = cartVo.getIdSku();
        List<SearchFilter> searchFilters = Lists.newArrayList(
                SearchFilter.build("idUser",cartVo.getIdUser()),
                SearchFilter.build("idGoods",cartVo.getIdGoods())
        );
        if(idSku!=null){
            searchFilters.add(SearchFilter.build("idSku",idSku));
        }
        Cart old  = get(searchFilters);
        Integer result = 0;
        if(old!=null){
            //判断之前是否添加到购物车，如果已添加，则在原有基础上增加购买数量即可
            old.setCount(old.getCount()+count);
            update(old);
        }else {
            //购物车新增商品
            Cart cart = new Cart();
            cart.setIdGoods(cartVo.getIdGoods());
            cart.setCount(count);
            cart.setIdUser(cartVo.getIdUser());
            cart.setIdSku(idSku);
            insert(cart);
            result = 1;
        }
        return result;
    }
}

@Service
public class GoodsService extends BaseService<Goods,Long,GoodsRepository>  {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired
    private GoodsRepository goodsRepository;
    @Autowired
    private GoodsSkuService goodsSkuService;
    @Autowired
    private FileInfoRepository fileInfoRepository;
    @Override
    public void deleteById(Long id) {
        Goods goods = get(id);
        goods.setIsDelete(true);
        update(goods);
    }
    public GoodsVo getDetail(Long id){
        Goods goods = get(id);
        List<GoodsSku> skuList = goodsSkuService.queryAll(Lists.newArrayList(
                SearchFilter.build("idGoods",id),
                SearchFilter.build("isDeleted",false)
        ));
        GoodsVo vo = new GoodsVo();
        vo.setGoods(goods);
        vo.setSkuList(skuList);
        return vo;
    }
    /**
     * 商品上架或者下架
     * @param id
     * @param isOnSale
     */
    public void changeIsOnSale(Long id, Boolean isOnSale) {
        Goods goods = get(id);
        goods.setIsOnSale(isOnSale);
        update(goods);
    }
}