10.商品详情

修改本机 hosts 文件：

# guli mall #
192.168.163.131		gulimall.com
192.168.163.131		search.gulimall.com
192.168.163.131		item.gulimall.com

        - id: mall_host_route 
          uri: lb://mall-product
          predicates:
            - Host=gulimall.com, item.gulimall.com

将 item.html 放在templates 目录下，静态文件可以选择放在 nginx 目录下实现动静分离，我这里还选择放在项目的 static 目录下。

@Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {

        SkuItemVo skuItemVo = new SkuItemVo();

        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            //1、sku基本信息的获取  pms_sku_info
            SkuInfoEntity info = this.getById(skuId);
            skuItemVo.setInfo(info);
            return info;
        }, executor);


        CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //3、获取spu的销售属性组合
            List<SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSaleAttrBySpuId(res.getSpuId());
            skuItemVo.setSaleAttr(saleAttrVos);
        }, executor);


        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync((res) -> {
            //4、获取spu的介绍    pms_spu_info_desc
            SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesc(spuInfoDescEntity);
        }, executor);


        CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //5、获取spu的规格参数信息
            List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        }, executor);


        // Long spuId = info.getSpuId();
        // Long catalogId = info.getCatalogId();

        //2、sku的图片信息    pms_sku_images
        CompletableFuture<Void> imageFuture = CompletableFuture.runAsync(() -> {
            List<SkuImagesEntity> imagesEntities = skuImagesService.getImagesBySkuId(skuId);
            skuItemVo.setImages(imagesEntities);
        }, executor);

        CompletableFuture<Void> seckillFuture = CompletableFuture.runAsync(() -> {
            //3、远程调用查询当前sku是否参与秒杀优惠活动
            R skuSeckilInfo = seckillFeignService.getSkuSeckilInfo(skuId);
            if (skuSeckilInfo.getCode() == 0) {
                //查询成功
                SeckillSkuVo seckilInfoData = skuSeckilInfo.getData("data", new TypeReference<SeckillSkuVo>() {
                });
                skuItemVo.setSeckillSkuVo(seckilInfoData);

                if (seckilInfoData != null) {
                    long currentTime = System.currentTimeMillis();
                    if (currentTime > seckilInfoData.getEndTime()) {
                        skuItemVo.setSeckillSkuVo(null);
                    }
                }
            }
        }, executor);


        //等到所有任务都完成
        CompletableFuture.allOf(saleAttrFuture,descFuture,baseAttrFuture,imageFuture,seckillFuture).get();

        return skuItemVo;
    }

 @Override
    public List<SkuItemSaleAttrVo> getSaleAttrBySpuId(Long spuId) {

        SkuSaleAttrValueDao baseMapper = this.getBaseMapper();
        List<SkuItemSaleAttrVo> saleAttrVos = baseMapper.getSaleAttrBySpuId(spuId);

        return saleAttrVos;
    }

/*   List<SkuItemSaleAttrVo> getSaleAttrBySpuId(@Param("spuId") Long spuId);*/
<select id="getSaleAttrBySpuId" resultMap="skuItemSaleAttrVo">
        SELECT
            ssav.attr_id attr_id,
            ssav.attr_name attr_name,
            ssav.attr_value,
            group_concat( DISTINCT info.sku_id ) sku_ids
        FROM
            pms_sku_info info
                LEFT JOIN pms_sku_sale_attr_value ssav ON ssav.sku_id = info.sku_id
        WHERE
            info.spu_id = #{spuId}
        GROUP BY
            ssav.attr_id,
            ssav.attr_name,
            ssav.attr_value

    </select>

   @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {

        //1、查出当前spu对应的所有属性的分组信息以及当前分组下的所有属性对应的值
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catalogId);

        return vos;
    }

/* List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(@Param("spuId") Long spuId, @Param("catalogId") Long catalogId);*/
 <select id="getAttrGroupWithAttrsBySpuId" resultMap="spuAttrGroup">

        SELECT
            product.spu_id,
            pag.attr_group_id,
            pag.attr_group_name,
            product.attr_id,
            product.attr_name,
            product.attr_value
        FROM
            pms_product_attr_value product
                LEFT JOIN pms_attr_attrgroup_relation paar ON product.attr_id = paar.attr_id
                LEFT JOIN pms_attr_group pag ON paar.attr_group_id = pag.attr_group_id
        WHERE
            product.spu_id = #{spuId}
          AND pag.catelog_id = #{catalogId}

    </select>

 @Override
    public List<SkuImagesEntity> getImagesBySkuId(Long skuId) {

        List<SkuImagesEntity> imagesEntities = this.baseMapper.selectList(new QueryWrapper<SkuImagesEntity>().eq("sku_id", skuId));

        return imagesEntities;
    }