获取list集合中某一列字段，得到list，并将list以逗号分隔为字符串

获取list集合中某一列字段，得到list，并将list以逗号分隔为字符串

 QueryWrapper<WebUser> wrapper = new QueryWrapper<>();
 wrapper.eq("type", 1);
 wrapper.last(" limit 10");
 List<WebUser> members = webUserService.list(wrapper);

 List<String> orderNoList=members.stream().map(WebUser::getNickname).collect(Collectors.toList());
 System.out.println("输出单号集合："+orderNoList);

 //获取list集合中某一列字段，得到list，并将list以逗号分隔为字符串
 List<Long> idList= members.stream().map(WebUser::getId).collect(Collectors.toList());
 StringUtils.join(idList,",");