随笔分类 -  java

arrayList add
摘要：arrayList add方法只是引用对象地址 List<Map<Stirng,Object>> list = new ArrayList(); Map<String, Object> map = new HashMap<>(); map.put("counter_id", "1"); map.pu 阅读全文
posted @ 2021-09-07 16:24 卟萌 阅读(64) 评论(0) 推荐(0)
java 通过map根据list某个字段进行合并
摘要：List<WarehouseStockItemBean> warehouseStockItemBeanLists = new ArrayList<>(); List<WarehouseStockItemBean> warehouseStockItemBeans = new ArrayList<>() 阅读全文
posted @ 2021-01-19 11:24 卟萌 阅读(1576) 评论(0) 推荐(1)