Mysql 不用Json存储 List<Long>的方式

 public static void main(String[] args) {
        List<Long> idList = new ArrayList<>();
        for (int i = 0; i < 20; i++) {
            idList.add(Long.valueOf(i));
        }
        String ids = org.apache.commons.lang3.StringUtils.join(idList.toArray(), ",").toString();
        System.out.println(ids);
        String[] splitIds = org.apache.commons.lang3.StringUtils.split(ids, ",");
        for (int i = 0; i < splitIds.length; i++) {
            String splitId = splitIds[i];
            System.out.println(splitId);
        }
    }