Vue3.0高阶实战：开发高质量音乐Web app

V: ititit111222333

    @ApiOperation(value = "根据一级分类最新商品六条数据", notes = "根据一级分类最新商品六条数据", httpMethod = "GET")
    @GetMapping("/getNewSixItems/{root}")
    public IMOOCJSONResult getNewSixItems(@ApiParam(name = "root", value = "一级分类id", required = true)
                                          @PathVariable("root") Integer root) {
        if (Objects.isNull(root)) {
            return IMOOCJSONResult.errorMsg("一级分类id不能为空");
        }
        List<NewItemsVO> newSixItems;
        String rootCategory = redisOperator.get("newSixItems");
        if (StringUtils.isBlank(rootCategory)) {
            newSixItems = categoryService.getNewSixItems(root);
            redisOperator.set("firstCategory", JsonUtils.objectToJson(newSixItems));
        } else {
            newSixItems = JsonUtils.jsonToList(rootCategory, NewItemsVO.class);
        }
        return IMOOCJSONResult.ok(newSixItems);
    }