JAVA lambda 分組隨筆瑣記

Map> groupMap = goodsStockModelNew.getSkus_list().stream().
collect(Collectors.groupingBy(GoodsStockModel::getSkuid));

for (Map.Entry<String, List<GoodsStockModel>> map : groupMap.entrySet()) {
if (map.getValue().size() > 1) {
//處理業務
GoodsStockModelResponse response=new GoodsStockModelResponse();
System.out.println(map.getKey());
response.setSkuid(map.getKey());
response.setWarehouse_id("");
//response.setWarehouse_id(menu.getWarehouse_id());
response.setFail_info("商品編碼不能重複,請檢查參數中sku_id");
responseList.add(response);

System.out.println("------>" + map.getKey());
}
}