redisson令牌桶限流对短信服务的运用

  /**
     * 防止短信被刷,使用令牌桶限流算法
     */
    private void protectMessageService(MemberSendCodeReq memberSendCodeReq) {
        String mobile = memberSendCodeReq.getMobile();
        String rateKey = "member:sendCode:rate" + mobile;
        String lockKey = "member:sendCode:lock" + mobile;
        String s = stringRedisTemplate.opsForValue().get(lockKey);
        if (!CharSequenceUtil.isBlank(s)) {
            log.info("{}请求过于频繁，被拉黑15分钟", mobile);
            throw new BusinessException(MEMBER_SEND_CODE_TOO_MANY);
        }
        RRateLimiter rateLimiter = redissonClient.getRateLimiter(rateKey);
        rateLimiter.expire(Instant.now().plusSeconds(3600));
        //每60秒产生5个令牌
        rateLimiter.trySetRate(RateType.OVERALL, 5, 60, RateIntervalUnit.SECONDS);
        //尝试获取一个令牌
        boolean acquire = rateLimiter.tryAcquire(1);
        if (!acquire) {
            //如果一个号码1分钟内请求超过5次就封禁15分钟
            stringRedisTemplate.opsForValue().set(lockKey, mobile, 15, TimeUnit.MINUTES);
            throw new BusinessException(MEMBER_SEND_CODE_TOO_MANY);
        }
    }