{"id":201744,"date":"2025-05-10T12:31:31","date_gmt":"2025-05-10T04:31:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201744\/"},"modified":"2025-05-10T12:31:31","modified_gmt":"2025-05-10T04:31:31","slug":"redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%99%90%e6%b5%81%e7%9a%84%e5%8e%9f%e7%90%86%e5%92%8c%e5%ae%9e%e7%8e%b0%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201744\/","title":{"rendered":"Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u5f0f"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u5f0f<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u5f0f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

\u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u5bf9\u5404\u79cd\u8bf7\u6c42\u8fdb\u884c\u9650\u6d41\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u7528\u7a0b\u5e8f\u4f1a\u906d\u53d7\u5927\u91cf\u8bf7\u6c42\u7684\u538b\u529b\uff0c\u5bfc\u81f4\u670d\u52a1\u5d29\u6e83\u6216\u54cd\u5e94\u53d8\u6162\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5f00\u53d1\u8005\u4eec\u901a\u5e38\u4f1a\u4f7f\u7528\u5206\u5e03\u5f0f\u9650\u6d41\u6280\u672f\u6765\u63a7\u5236\u8bf7\u6c42\u7684\u6d41\u91cf\uff0c\u4fdd\u8bc1\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\u548c\u7a33\u5b9a\u6027\u3002\u800cRedis\u4f5c\u4e3a\u4e00\u6b3e\u9ad8\u6027\u80fd\u5185\u5b58\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u662f\u5e38\u7528\u7684\u5206\u5e03\u5f0f\u9650\u6d41\u65b9\u6848\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecdRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n

\u4e00\u3001\u4ec0\u4e48\u662f\u5206\u5e03\u5f0f\u9650\u6d41<\/p>\n

\u5206\u5e03\u5f0f\u9650\u6d41\u662f\u6307\u5728\u591a\u53f0\u670d\u52a1\u5668\u4e4b\u95f4\uff0c\u901a\u8fc7\u534f\u4f5c\u63a7\u5236\u8bf7\u6c42\u6d41\u91cf\u7684\u8fc7\u7a0b\u3002\u9650\u6d41\u5668\u4f1a\u7edf\u8ba1\u8bf7\u6c42\u7684\u6570\u91cf\uff0c\u5c06\u4f20\u5165\u8bf7\u6c42\u7684\u901f\u7387\u4e0e\u5141\u8bb8\u7684\u901f\u7387\u8fdb\u884c\u6bd4\u8f83\uff0c\u7136\u540e\u6839\u636e\u6bd4\u7387\u7684\u7ed3\u679c\u6765\u63a5\u53d7\u6216\u62d2\u7edd\u8bf7\u6c42\u3002\u5728\u5206\u5e03\u5f0f\u9650\u6d41\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u5171\u4eab\u8bf7\u6c42\u901f\u7387\u548c\u8bf7\u6c42\u8ba1\u6570\u5668\uff0c\u8fd9\u6709\u52a9\u4e8e\u786e\u4fdd\u6240\u6709\u8282\u70b9\u7684\u901f\u7387\u90fd\u662f\u76f8\u7b49\u7684\uff0c\u5e76\u907f\u514d\u51fa\u73b0\u67d0\u4e2a\u8282\u70b9\u8fc7\u5ea6\u8d1f\u8f7d\u7684\u60c5\u51b5\u3002<\/p>\n

\u4e8c\u3001Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406<\/p>\n

Redis\u5229\u7528\u5176\u5185\u7f6e\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7279\u522b\u662fzset(sorted set)\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u3002zset\u662f\u4e00\u79cd\u6392\u5e8f\u7684\u96c6\u5408\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u552f\u4e00\u7684\uff0c\u5e76\u4e14\u5177\u6709\u4e00\u4e2a\u5206\u6570\u3002\u8be5\u5206\u6570\u7528\u4e8e\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\uff0c\u901a\u5e38\u662f\u6570\u5b57\u6216\u65f6\u95f4\u3002\u5728\u5206\u5e03\u5f0f\u9650\u6d41\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u7528\u6237\uff08\u6216IP\u5730\u5740\uff09\u8bbe\u7f6e\u4e00\u4e2azset\uff0c\u7136\u540e\u4f7f\u7528\u8fd9\u4e2azset\u6765\u5b58\u50a8\u8be5\u7528\u6237\u7684\u8bf7\u6c42\u8ba1\u6570\u5668\u3002\u5f53\u6bcf\u4e2a\u8bf7\u6c42\u5230\u8fbe\u65f6\uff0c\u6211\u4eec\u5c06\u5176\u5b58\u50a8\u5728zset\u4e2d\uff0c\u5e76\u4f7f\u7528Redis\u7684INCRBY\u547d\u4ee4\u5c06\u8ba1\u6570\u5668\u9012\u589e\u3002\u7136\u540e\uff0c\u6211\u4eec\u5c06\u8bf7\u6c42\u5206\u6570\u548c\u5f53\u524d\u65f6\u95f4\u6233\u4e00\u8d77\u89c6\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9zrangebyscore\u547d\u4ee4\uff0c\u4ee5\u8ba1\u7b97\u4e00\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bf7\u6c42\u7684\u901f\u7387\u3002\u5982\u679c\u901f\u7387\u8d85\u51fa\u4e86\u6211\u4eec\u6240\u5141\u8bb8\u7684\u901f\u7387\uff0c\u5c31\u62d2\u7edd\u8be5\u8bf7\u6c42\u3002<\/p>\n

\u4e09\u3001Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u5b9e\u73b0\u65b9\u5f0f<\/p>\n

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u521b\u5efa\u4e00\u4e2a\u5168\u5c40\u7684zset\u7528\u4e8e\u5b58\u50a8\u9650\u6d41\u5668\uff08\u4e00\u4e2a\u9650\u6d41\u5668\u4ee3\u8868\u4e00\u4e2a\u7528\u6237\u6216IP\u5730\u5740\uff09\u548c\u6bcf\u4e2a\u9650\u6d41\u5668\u7684\u8bf7\u6c42\u8ba1\u6570\u5668\u3002<\/li>\n
  2. \u6bcf\u5f53\u4e00\u4e2a\u8bf7\u6c42\u5230\u8fbe\u65f6\uff0c\u6211\u4eec\u5c06\u5176\u5b58\u50a8\u5728\u8be5\u9650\u6d41\u5668\u7684zset\u4e2d\uff0c\u5e76\u4f7f\u7528INCRBY\u547d\u4ee4\u5c06\u8ba1\u6570\u5668\u9012\u589e\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8be5\u547d\u4ee4\u6bcf\u6b21\u5c06\u8ba1\u6570\u5668\u9012\u589e1\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u5c06\u547d\u4ee4\u7684\u53c2\u6570\u8bbe\u7f6e\u4e3a\u66f4\u9ad8\u7684\u503c\u6765\u589e\u52a0\u9012\u589e\u91cf\u3002<\/li>\n
  3. \u4f7f\u7528zrangebyscore\u547d\u4ee4\u6765\u67e5\u627e\u8bf7\u6c42\u8ba1\u6570\u5668\u5728\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u5e76\u8ba1\u7b97\u8bf7\u6c42\u901f\u7387\u3002<\/li>\n
  4. \u5982\u679c\u8bf7\u6c42\u901f\u7387\u8d85\u51fa\u5141\u8bb8\u7684\u901f\u7387\uff0c\u5219\u62d2\u7edd\u8bf7\u6c42\uff0c\u5e76\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n
  5. \u5982\u679c\u8bf7\u6c42\u901f\u7387\u6ca1\u6709\u8d85\u51fa\u5141\u8bb8\u7684\u901f\u7387\uff0c\u5219\u63a5\u53d7\u8bf7\u6c42\uff0c\u5e76\u66f4\u65b0zset\u4e2d\u7684\u8bf7\u6c42\u8ba1\u6570\u5668\u3002<\/li>\n<\/ol>\n

    \u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u3002\u5176\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u4e00\u4e2a\u5168\u5c40zset\u6765\u5b58\u50a8\u6bcf\u4e2aIP\u5730\u5740\u7684\u8bf7\u6c42\u8ba1\u6570\u5668\uff0c\u5e76\u4f7f\u7528\u4e86zrangebyscore\u547d\u4ee4\u6765\u8ba1\u7b97\u6bcf\u79d2\u7684\u8bf7\u6c42\u901f\u7387\u3002<\/p>\n

    import redis\nimport time\n\nclass RateLimiter(object):\n    def __init__(self, redis_client, rate, key_prefix='limiter'):\n        self.redis = redis_client\n        self.rate = rate\n        self.key_prefix = key_prefix\n\n    def allow_request(self, ip):\n        key = '%s:%s' % (self.key_prefix, ip)\n        now = time.time()\n        count = self.redis.zcount(key, now - 1, now)\n        if count < self.rate:\n            self.redis.zadd(key, now, now)\n            return True\n        return False\n\nif __name__ == '__main__':\n    redis_client = redis.Redis()\n    limiter = RateLimiter(redis_client, 5)\n    for i in range(10):\n        print(limiter.allow_request('192.168.1.1'))\n        time.sleep(1)<\/pre>\n
    \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aRateLimiter\u7684\u7c7b\uff0c\u8be5\u7c7b\u4f7f\u7528Redis\u4f5c\u4e3a\u540e\u7aef\u5b58\u50a8\u3002\u6784\u9020\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1aRedis\u5ba2\u6237\u7aef\u5b9e\u4f8b\u548c\u901f\u7387\u9650\u5236\u3002\u6bcf\u5f53\u6211\u4eec\u8c03\u7528allow_request\u65b9\u6cd5\u65f6\uff0c\u5b83\u5c06\u63a5\u53d7\u4e00\u4e2a\u8868\u793aIP\u5730\u5740\u7684\u53c2\u6570\uff0c\u7136\u540e\u68c0\u67e5\u8be5IP\u5730\u5740\u7684\u8bf7\u6c42\u6570\u662f\u5426\u8d85\u8fc7\u4e86\u901f\u7387\u9650\u5236\u3002\u5982\u679c\u6ca1\u6709\u8d85\u8fc7\uff0c\u5b83\u5c06\u6536\u96c6\u8bf7\u6c42\u5e76\u8fd4\u56deTrue\uff1b\u5426\u5219\uff0c\u5b83\u5c06\u62d2\u7edd\u8bf7\u6c42\u5e76\u8fd4\u56deFalse\u3002<\/p>\n
    \u5728main\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u79f0\u4e3alimiter\u7684\u5b9e\u4f8b\uff0c\u8bbe\u7f6e\u4e86\u901f\u7387\u9650\u5236\u4e3a5\uff08\u5373\u6bcf\u79d2\u6700\u591a\u63a5\u53d75\u4e2a\u8bf7\u6c42\uff09\uff0c\u7136\u540e\u6a21\u62df\u4e8610\u4e2a\u8fde\u7eed\u7684\u8bf7\u6c42\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u4e4b\u95f4\u95f4\u96941\u79d2\u3002\u5728\u7b2c6\u4e2a\u8bf7\u6c42\u5f00\u59cb\u65f6\uff0c\u7531\u4e8e\u901f\u7387\u9650\u5236\u5df2\u7ecf\u8fbe\u5230\uff0c\u6240\u6709\u8bf7\u6c42\u90fd\u5c06\u88ab\u62d2\u7edd\uff0c\u5e76\u8fd4\u56deFalse\u3002<\/p>\n
    \u56db\u3001\u603b\u7ed3<\/p>\n
    Redis\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5185\u5b58\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7279\u522b\u662fzset\uff08Sorted Set\uff09\u662f\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u7406\u60f3\u9009\u62e9\u3002\u901a\u8fc7\u4f7f\u7528Redis\u7684zset\u3001INCRBY\u548czrangebyscore\u547d\u4ee4\u7b49\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\uff0c\u4ece\u800c\u63a7\u5236\u8bf7\u6c42\u7684\u6d41\u91cf\uff0c\u4fdd\u8bc1\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n
    \n
    \n <\/dt>\n
    \n   Redis\u5728\u667a\u80fd\u5bb6\u5c45\u4e2d\u7684\u5e94\u7528\u5b9e\u4f8b\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   Redis\u7684\u4e3b\u4ece\u540c\u6b65\u5ef6\u8fdf\u95ee\u9898\u5206\u6790\u4e0e\u89e3\u51b3\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9650\u6d41\u7684\u539f\u7406\u548c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201744","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201744"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201744\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}