百万数据迁移的线程分组

comtroller层开启线程：

　　　　new Thread(() -> oracleQueryService.findOfficeList(oracleListRequestModel)).start();

service执行查询和插入操作
    public ResultModel findOfficeList(OracleListRequestModel oracleListRequestModel) {
        ResultModel resultModel = new ResultModel();
        try {
            int subSize = migrationConfig.getSubsize();// 引配置文件 临时10个测试

            resultModel.setSuccess(true);
            List<OfficeCustomerEntity> officeList = oracleQueryRepository.findOfficeList(oracleListRequestModel);
            int size = officeList.size();
            logger.info("本次官网帐号迁移数量：" + size + " 起始时间：" + oracleListRequestModel.getStartDate() + " 截止时间：" + oracleListRequestModel.getEndDate());
            int length;
            if (size % subSize == 0) {
                length = size / subSize;
            } else {
                length = size / subSize + 1;
            }
            int start = 0;
            int end = 0;
            for (int i = 0; i < length; i++) {
                List<OfficeCustomerEntity> newOfficeList;
                if (i * subSize + subSize <= size) {
                    newOfficeList = officeList.subList(i * subSize, i * subSize + subSize);
                    start = i * subSize;
                    end = i * subSize + subSize;
                } else {
                    newOfficeList = officeList.subList(i * subSize, size);
                    start = i * subSize;
                    end = size;
                }
                migExecutorPool.officeMigBatch(newOfficeList, start, end, oracleListRequestModel.getStartDate(), oracleListRequestModel.getEndDate());
            }
        } catch (Exception e) {
            logger.error("迁移出错：" + e.getMessage(), e);
            resultModel.setMessage("迁移出错：" + e + " "  + e.getMessage());
            return resultModel;
        }