循环分页获取全部数据

/**
 * 循环分页获取北森出差数据,当最后一次调用获取的数据量不足pageSize则表明是最后一页
 * @param travelDataRequest 出差数据Http请求Request
 */
private List<BusinessData> getAllPageDate(TravelDataRequest travelDataRequest)  {
    List<BusinessData> businessDataList = Lists.newArrayList();
    try {
        int i = ONE;
        while (true) {
            travelDataRequest.setPageIndex(i);
            travelDataRequest.setPageSize(PAGE_SIZE);
            Config config = ConfigService.getConfig(ConstantsUtil.NAME_SPACE_KEY);
            String url = config.getProperty(URL,"");
            logger.info("从阿波罗获取到出差数据接口URL为:[{}]", url);
            String result = HttpClientUtil.httpPostJson(url, JSON.toJSONString(travelDataRequest) , null).getResult();
            TravelDataResponse travelDataResponse = JSON.parseObject(result, TravelDataResponse.class);
            TravelDataResponse.Data data = Optional.ofNullable(travelDataResponse).map(TravelDataResponse::getData)
                    .orElseThrow(() -> new IllegalStateException("获取数据为空"));
            List<BusinessData> businessList = data.getBusinessList();
            Integer total = data.getTotal();
            businessDataList.addAll(businessList);

            //如果获取当前页的数据总量小于每页大小,则表明是最后一页跳出循环
            if (CollectionUtil.size(businessList) < PAGE_SIZE) {
                logger.info("从北森获取出差数据总共[{}]页", i);
                break;
            }

            //如果获取到的数据总量大于等于total则跳出循环
            if (businessDataList.size() >= total) {
                break;
            }

            i++;
        }
        return businessDataList;
    } catch (Exception e) {
        logger.error("调用北森接口获取出差数据出现异常", e);
        return Lists.newArrayList();
    }
}