code: public static String getRandomUid() {
          int[] val = Utils.split(System.currentTimeMillis(), ValueConsts.NINE_INT);
          String uid = Utils.toUidString(val[0]) + Utils.toUidString(val[1]);
          return uid + RandomUtil.simpleUUID().substring(0, ValueConsts.SIXTEEN_INT - uid.length());
      }
docs: 获取一个Uid（简化版UUID）
  
  @return {@link String}
  
  @since 1.0.9