@Scheduled(cron = "*/10 * * * * ? ")    
public void uploadSeckillSkuLatest3Days() {
    // 重復(fù)上架無(wú)需處理
    log.info("上架秒殺的商品...");
    // 分布式鎖（冪等性）
    RLock lock = redissonClient.getLock(SeckillConstant.UPLOAD_LOCK);
    try {
        lock.lock(10, TimeUnit.SECONDS);
        // 上架最近三天需要秒殺的商品
        seckillService.uploadSeckillSkuLatest3Days();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        lock.unlock();
    }
}

 Boolean hasKey = redisTemplate.hasKey(key);
 if (!hasKey) {
 }

private void saveSessionInfos(List<SeckillSessionWithSkusTO> sessions) {
        if (!CollectionUtils.isEmpty(sessions)) {
            sessions.stream().forEach(session -> {
                // 1.遍歷場(chǎng)次
                long startTime = session.getStartTime().getTime();// 場(chǎng)次開始時(shí)間戳
                long endTime = session.getEndTime().getTime();// 場(chǎng)次結(jié)束時(shí)間戳
                String key = SeckillConstant.SESSION_CACHE_PREFIX + startTime + "_" + endTime;// 場(chǎng)次的key
                // 2.判斷場(chǎng)次是否已上架（冪等性）
                Boolean hasKey = redisTemplate.hasKey(key);
                if (!hasKey) {
                    // 未上架
                    // 3.封裝場(chǎng)次信息
                    List<String> skuIds = session.getRelationSkus().stream()
                            .map(item -> item.getPromotionSessionId() + "_" + item.getSkuId().toString())
                            .collect(Collectors.toList());// skuId集合
                    // 4.上架
                    redisTemplate.opsForList().leftPushAll(key, skuIds);
                }
            });
        }
    }