public ErrorResponse addCategory(List<Categories> categories) { for (Categories category : categories) { if (categoriesMapper.checkCategories(category).size() != 0) { return new ErrorResponse.Builder(1, "类别已存在").build(); } categoriesMapper.addCategoory(category); } logger.info("插入数据成功,共" + categories.size() + "条"); return new ErrorResponse.Builder(0, "OK").build(); }