public int addCombinationSku(CombinationSku combinationSku) {
logger.debug("addCombinationSku and combinationSku :{}", combinationSku);
List<String> list = combinationSkuMapper.querySkuIdWithAdd(combinationSku);
if (!CollectionUtils.isEmpty(list)) {
if (list.stream().filter(id -> id.equals(combinationSku.getSkuId())).count() != 0) {
return 0;
}
}
return combinationSkuMapper.addCombinationSku(combinationSku);
}麻烦解读下这方法,lambda表达式好难,看不懂
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