基于Redis zSet实现滑动窗口对短信进行防刷限流的问题

public void checkCurrentWindowValue(String telNum) {
        
        String windowKey = CommonConstant.getNnSmsWindowKey(telNum);
        //获取当前时间戳
        long currentTime = System.currentTimeMillis();
        //1小时，默认只能发5次，参数smsWindowMax做成可配置项，配置到Nacos配置中心，可以动态调整
        if (RedisUtil.hasKey(windowKey)) {
            //参数smsWindowTime表示限制的窗口时间
            //这里获取当前时间与限制窗口时间之间的短信发送次数
            Optional<Long> optional = Optional.ofNullable(RedisUtil.zCount(windowKey, currentTime - smsWindowTime, currentTime));
            if (optional.isPresent()) {
                long count = optional.get();
                if (count >= smsWindowMax) {
                    log.error("==========>当前号码：{} 短信发送太频繁，{}", telNum, count);
                    throw new ServiceException(MidRetCode.umid_10060);
                }
            }
        }
        StringBuilder sb =new StringBuilder();
        String windowEle = sb.append(telNum).append(":").append(currentTime).toString();
        //添加当前发送元素到zSet中(由于保证元素唯一，这里将元素加上了当前时间戳)
        RedisUtil.zAdd(windowKey, windowEle, currentTime);
        //设置2倍窗口Key：windowKey 的过期时间
        RedisUtil.expire(windowKey, smsWindowTime*2, TimeUnit.MILLISECONDS);
    }

<?PHP

//IP规则
$ipRules=array(
    60=>5,
    600=>30,
    3600=>50
);
//手机号规则
$phoneRules=array(
    60=>1,
    600=>5,
    3600=>10
);

$r = checkLimits($ipRules,$_SERVER["REMOTE_ADDR"],$_GET['tel']);
var_dump($r);

$r = checkLimits($phoneRules,$_GET['tel'],$_GET['tel']);
var_dump($r);

function checkLimits($rules,$key,$tel){
    $redis = new Redis();
    $redis->connect('115.159.28.111', 1991);
    foreach($rules as $ruleTime=>$rule) {
        $redisKey=$key."_".$ruleTime;
        $score=time();
        $member=$tel.'_'.$score;
        $redis->multi();
        $redis->zRemRangeByScore($redisKey, 0, $score - $ruleTime);//移除窗口以外的数据
        $redis->zAdd($redisKey, $score, $member);
        $redis->expire($redisKey, $ruleTime);
        $redis->zRange($redisKey, 0, -1, true);
        $members = $redis->exec();
        if (empty($members[3])) {
            break;
        }
        $nums=count($members[3]);
        var_dump($nums);

        if($nums>$rule){
            return false;
        }
    }
    return true;
}