摘要:
一、分组(单个字段) 1、分组:Map<Integer,List<BaseOrganizationVO>> iuIdMap = list.stream().collect(Collectors.groupingBy(BaseOrganizationVO :: getOrgId)); 2、取值: if 阅读全文
摘要:
String auctionBlockIds="45,46,47"; 一、String 转List<String> List<String> auctionBlockId= Arrays.asList(auctionBlockIds.split(",")).stream().map(block -> 阅读全文