code: public GetUserReadResponse getUserRead(Date beginDate, Date endDate) {
          BeanUtil.requireNonNull(beginDate, "beginDate is null");
          BeanUtil.requireNonNull(endDate, "endDate is null");
          GetUserReadResponse response = null;
          String url = BASE_API_URL + "datacube/getuserread?access_token=#";
          Map<String, String> param = new HashMap<String, String>();
          param.put("begin_date", DATE_FORMAT.format(beginDate));
          param.put("end_date", DATE_FORMAT.format(endDate));
          String json = JSONUtil.toJson(param);
          BaseResponse r = executePost(url, json);
          String resultJson = isSuccess(r.getErrcode()) ? r.getErrmsg() : r.toJsonString();
          response = JSONUtil.toBean(resultJson, GetUserReadResponse.class);
          return response;
      }
docs: 获取图文统计数据，最大跨度为3天
  
  @param beginDate 开始时间
  @param endDate   结束时间
  @return 图文统计数据