String,List与Split,

List<String> co2Names = new ArrayList<>();
String monitorNames = StringUtils.join(co2Names, ",");

List<Map<String, Object>> regionList = new ArrayList<>(16);

regionList.stream().map(e -> e.get("code").toString()).collect(Collectors.joining(","));

String[] ids = id.split(",");

String name = StringUtils.join(ids,"','");

List<IpsMaterial> ipsMaterials = page.getContent();

String codes = ipsMaterials.stream().map(IpsMaterial::getMaterialUseUnit).collect(Collectors.joining(","));