生成时间戳的订单编号

原创于 2025-07-28 14:02:57 发布 · 145 阅读

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#java #开发语言

1     public static final Integer ORDER_SN_INCR_LIMIT = 999999;
 public static final String ORDER_SN_INCR_KEY = CACHE_PREFIX + "order_sn_incr_key";
    public String generateOrderSn() {
        long now = LocalDateTime.now().toEpochSecond(ZoneOffset.of("+8"));
        Integer orderSnIncrLimit = Constants.ORDER_SN_INCR_LIMIT;
        Long incrKey = redisCache.luaIncrKey(CacheConstants.ORDER_SN_INCR_KEY, orderSnIncrLimit);
        if (incrKey > (long) orderSnIncrLimit) {
            throw new BadRequestException("订单编号生成失败");
        }
        return now + String.format("%06d", incrKey);
    }