{"id":202269,"date":"2025-05-10T15:19:54","date_gmt":"2025-05-10T07:19:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202269\/"},"modified":"2025-05-10T15:19:54","modified_gmt":"2025-05-10T07:19:54","slug":"redis%ef%bc%9a%e6%9e%84%e5%bb%ba%e5%ae%9e%e6%97%b6%e6%8e%92%e8%a1%8c%e6%a6%9c%e7%b3%bb%e7%bb%9f%e7%9a%84%e5%85%b3%e9%94%ae%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202269\/","title":{"rendered":"Redis\uff1a\u6784\u5efa\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u5173\u952e\u6280\u672f"},"content":{"rendered":"

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

Redis\uff1a\u6784\u5efa\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u5173\u952e\u6280\u672f<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587\u300aRedis\uff1a\u6784\u5efa\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u5173\u952e\u6280\u672f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728golang\u5b66\u4e60\u7f51\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

Redis \u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u9ad8\u6027\u80fd\u952e\u503c\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u56e0\u5176\u5feb\u901f\u8bfb\u5199\u901f\u5ea6\u3001\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3001\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\u7b49\u7279\u70b9\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u4e2d\u3002\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u662f\u6307\u6309\u4e00\u5b9a\u6761\u4ef6\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\u7684\u7cfb\u7edf\uff0c\u4f8b\u5982\u6e38\u620f\u4e2d\u7684\u79ef\u5206\u6392\u884c\u699c\u3001\u7535\u5546\u4e2d\u7684\u9500\u91cf\u6392\u540d\u7b49\u3002<\/p>\n

\u672c\u6587\u5c06\u4ecb\u7ecd Redis \u5728\u6784\u5efa\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u4e2d\u6240\u7528\u5230\u7684\u5173\u952e\u6280\u672f\uff0c\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u5185\u5bb9\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n

    \n
  1. Redis \u7684\u6570\u636e\u7c7b\u578b<\/li>\n
  2. \u6392\u5e8f\u7b97\u6cd5<\/li>\n
  3. Redis \u4e2d\u7684\u6392\u884c\u699c\u5b9e\u73b0<\/li>\n
  4. \u53ef\u6269\u5c55\u6027<\/li>\n
  5. Redis \u7684\u6570\u636e\u7c7b\u578b<\/li>\n<\/ol>\n

    Redis \u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u8868\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002<\/p>\n

    \u6709\u5e8f\u96c6\u5408\u662f\u5b9e\u73b0\u6392\u884c\u699c\u7684\u5173\u952e\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5c06\u6570\u636e\u6309\u7167\u67d0\u4e2a\u5b57\u6bb5\u7684\u503c\u8fdb\u884c\u6392\u5e8f\u3002\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u5206\u6570\uff08score\uff09\uff0c\u6839\u636e\u5206\u6570\u8fdb\u884c\u6392\u5e8f\u3002\u5f53\u5206\u6570\u76f8\u540c\u65f6\uff0c\u6309\u7167\u5b57\u5178\u5e8f\u8fdb\u884c\u6392\u5e8f\u3002\u6709\u5e8f\u96c6\u5408\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6210\u5458\uff08member\uff09\u503c\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8be5\u5143\u7d20\u3002<\/p>\n

    \u5177\u4f53\u7684\u6709\u5e8f\u96c6\u5408\u76f8\u5173\u547d\u4ee4\u6709\uff1aZADD\u3001ZREM\u3001ZRANGE \u7b49\u3002<\/p>\n

      \n
    1. \u6392\u5e8f\u7b97\u6cd5<\/li>\n<\/ol>\n

      \u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u9700\u8981\u8fdb\u884c\u5feb\u901f\u800c\u51c6\u786e\u7684\u6392\u5e8f\uff0c\u56e0\u6b64\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u6392\u5e8f\u7b97\u6cd5\u3002Redis \u4e2d\u4f7f\u7528\u7684\u662f\u8df3\u8dc3\u8868\uff08skip list\uff09\u7b97\u6cd5\u6765\u5b9e\u73b0\u6709\u5e8f\u96c6\u5408\u3002<\/p>\n

      \u8df3\u8dc3\u8868\u662f\u4e00\u79cd\u968f\u673a\u5316\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7c7b\u4f3c\u4e8e\u94fe\u8868\uff0c\u4f46\u662f\u6bcf\u4e2a\u8282\u70b9\u6709\u591a\u4e2a\u6307\u9488\uff0c\u4f7f\u5f97\u67e5\u627e\u6548\u7387\u66f4\u9ad8\u3002\u8df3\u8dc3\u8868\u4e2d\u7684\u8282\u70b9\u6309\u7167\u9012\u589e\u987a\u5e8f\u6392\u5217\uff0c\u5e76\u4e14\u6bcf\u4e2a\u8282\u70b9\u90fd\u6709\u4e00\u4e2a\u968f\u673a\u7684\u201c\u5c42\u6570\u201d\uff0c\u6bcf\u5c42\u90fd\u6709\u4e00\u4e2a\u6307\u5411\u4e0b\u4e00\u5c42\u8282\u70b9\u7684\u6307\u9488\u3002\u8fd9\u4e2a\u201c\u5c42\u6570\u201d\u662f\u968f\u673a\u751f\u6210\u7684\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n

      \u8df3\u8dc3\u8868\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f O(log n)\uff0c\u7a7a\u95f4\u590d\u6742\u5ea6\u662f O(n)\uff0c\u53ef\u4ee5\u5f88\u597d\u5730\u6ee1\u8db3\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u9700\u6c42\u3002<\/p>\n

        \n
      1. Redis \u4e2d\u7684\u6392\u884c\u699c\u5b9e\u73b0<\/li>\n<\/ol>\n

        \u4f7f\u7528 Redis \u5b9e\u73b0\u6392\u884c\u699c\u9700\u8981\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n

        1\uff09\u521b\u5efa\u6709\u5e8f\u96c6\u5408<\/p>\n

        \u4f7f\u7528 ZADD \u547d\u4ee4\u521b\u5efa\u4e00\u4e2a\u6709\u5e8f\u96c6\u5408\uff0c\u5e76\u5411\u5176\u4e2d\u6dfb\u52a0\u5143\u7d20\uff08\u6210\u5458\u548c\u5206\u6570\uff09\u3002\u6bcf\u4e2a\u6210\u5458\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u8bc6\u7b26\uff0c\u4f8b\u5982\uff0c\u5728\u6e38\u620f\u4e2d\u53ef\u4ee5\u4f7f\u7528\u7528\u6237 ID\uff0c\u7535\u5546\u4e2d\u53ef\u4ee5\u4f7f\u7528\u5546\u54c1\u7f16\u53f7\u3002<\/p>\n

        2\uff09\u83b7\u53d6\u6392\u884c\u699c\u6570\u636e<\/p>\n

        \u6839\u636e\u6392\u540d\u83b7\u53d6\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u5143\u7d20\uff0c\u4f7f\u7528 ZRANGE \u547d\u4ee4\u53ef\u4ee5\u5bf9\u6709\u5e8f\u96c6\u5408\u8fdb\u884c\u533a\u95f4\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u8981\u83b7\u53d6\u524d 10 \u540d\u7684\u7528\u6237\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528 ZRANGE command 0 9 WITHSCORES \u547d\u4ee4\u3002<\/p>\n

        3\uff09\u66f4\u65b0\u5206\u6570<\/p>\n

        \u5f53\u7528\u6237\u79ef\u5206\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u9700\u8981\u66f4\u65b0\u6709\u5e8f\u96c6\u5408\u4e2d\u5bf9\u5e94\u7684\u5206\u6570\u3002\u53ef\u4ee5\u4f7f\u7528 ZADD \u547d\u4ee4\u8fdb\u884c\u66f4\u65b0\u3002<\/p>\n

        4\uff09\u83b7\u53d6\u6240\u5904\u6392\u540d<\/p>\n

        \u6839\u636e\u7528\u6237 ID \u83b7\u53d6\u5176\u5728\u6392\u884c\u699c\u4e0a\u7684\u6392\u540d\u3002\u53ef\u4ee5\u4f7f\u7528 ZRANK \u547d\u4ee4\u83b7\u53d6\u7528\u6237 ID \u6240\u5bf9\u5e94\u7684\u6392\u540d\u3002<\/p>\n

        \u4ee5\u4e0b\u662f\u4e00\u4e2a\u57fa\u4e8e Redis \u7684\u6392\u884c\u699c\u5b9e\u73b0\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u5176\u4e2d\u4f7f\u7528\u7684\u662f\u8df3\u8dc3\u8868\u7b97\u6cd5\uff1a<\/p>\n

        import redis\n\n# \u8fde\u63a5 Redis \u6570\u636e\u5e93\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u521b\u5efa\u6392\u884c\u699c\ndef create_leaderboard():\n    r.zadd('leaderboard', {'Tom': 100, 'Jerry': 90, 'Peter': 80, 'Lucy': 70})\n\n# \u83b7\u53d6\u6392\u884c\u699c\u524d N \u540d\u7684\u6570\u636e\ndef get_topN(n):\n    data = r.zrevrange('leaderboard', 0, n - 1, withscores=True)\n    return data\n\n# \u66f4\u65b0\u7528\u6237\u79ef\u5206\ndef update_score(username, score):\n    r.zadd('leaderboard', {username: score})\n\n# \u83b7\u53d6\u6307\u5b9a\u7528\u6237\u5728\u6392\u884c\u699c\u4e2d\u7684\u6392\u540d\ndef get_rank(username):\n    rank = r.zrank('leaderboard', username)\n    return rank\n\n# \u6d4b\u8bd5\u4ee3\u7801\nif __name__ == '__main__':\n    create_leaderboard()\n    print(get_topN(3))  # \u8f93\u51fa\u524d 3 \u540d\u7684\u6570\u636e\n    update_score('Tom', 95)  # Tom \u7684\u79ef\u5206\u53d8\u4e3a 95\n    print(get_topN(3))  # \u518d\u6b21\u8f93\u51fa\u524d 3 \u540d\u7684\u6570\u636e\uff0c\u5e94\u8be5\u4f1a\u6709\u53d8\u5316\n    print(get_rank('Tom'))  # Tom \u76ee\u524d\u7684\u6392\u540d\u662f\u7b2c 2 \u540d<\/pre>\n
          \n
        1. \u53ef\u6269\u5c55\u6027<\/li>\n<\/ol>\n
          \u968f\u7740\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u6570\u636e\u91cf\u8d8a\u6765\u8d8a\u5927\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u7cfb\u7edf\u6027\u80fd\u74f6\u9888\u3002\u4e3a\u4e86\u4fdd\u8bc1\u7cfb\u7edf\u7684\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528 Redis \u96c6\u7fa4\u6765\u6a2a\u5411\u6269\u5c55\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u3002<\/p>\n
          Redis \u96c6\u7fa4\u662f\u6307\u5728\u591a\u53f0\u670d\u52a1\u5668\u4e0a\u5206\u5e03\u5f0f\u8fd0\u884c\u7684 Redis \u5b9e\u4f8b\uff0c\u5c06\u5927\u91cf\u6570\u636e\u5206\u6563\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u9ad8\u53ef\u7528\u6027\u548c\u8d1f\u8f7d\u5747\u8861\u3002\u53ef\u4ee5\u4f7f\u7528 Redis Cluster \u6216\u8005 Redis Sentinel \u5b9e\u73b0 Redis \u96c6\u7fa4\u3002<\/p>\n
          \u5728\u5b9e\u73b0 Redis \u96c6\u7fa4\u65f6\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n
          1\uff09\u6570\u636e\u5206\u533a\uff1a\u5c06\u6570\u636e\u5206\u6563\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a\uff0c\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u5355\u4e2a\u8282\u70b9\u7684\u8d1f\u8f7d\u538b\u529b\u3002<\/p>\n
          2\uff09\u8bfb\u5199\u5206\u79bb\uff1a\u4f7f\u7528\u4e3b\u4ece\u67b6\u6784\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\uff0c\u53ef\u4ee5\u5c06\u8bfb\u64cd\u4f5c\u5206\u644a\u5230\u591a\u4e2a\u8282\u70b9\u4e0a\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u8bfb\u53d6\u6548\u7387\u3002<\/p>\n
          3\uff09\u5bb9\u9519\u673a\u5236\uff1a\u4f7f\u7528 Redis Sentinel \u6216\u8005\u5176\u4ed6\u5bb9\u9519\u673a\u5236\u5b9e\u73b0\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\uff0c\u4fdd\u8bc1\u7cfb\u7edf\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n
          \u603b\u7ed3\uff1a<\/p>\n
          Redis \u662f\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u5f3a\u6709\u529b\u5de5\u5177\uff0c\u5176\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\u548c\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5b9e\u73b0\u6570\u636e\u7684\u6392\u5e8f\u548c\u67e5\u8be2\u3002\u4f7f\u7528\u8df3\u8dc3\u8868\u7b97\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u7684\u6392\u5e8f\uff0c\u52a0\u4e0a Redis \u96c6\u7fa4\u7684\u6a2a\u5411\u6269\u5c55\uff0c\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u6570\u636e\u5e76\u4fdd\u8bc1\u7cfb\u7edf\u7684\u9ad8\u53ef\u7528\u6027\u3002\u672c\u6587\u4e2d\u63d0\u4f9b\u7684\u4ee3\u7801\u793a\u4f8b\u53ef\u4ee5\u4f5c\u4e3a\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u7cfb\u7edf\u7684\u57fa\u7840\u6784\u4ef6\uff0c\u8bfb\u8005\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8fdb\u884c\u4fee\u6539\u548c\u4f18\u5316\u3002<\/p>\n
          \n
          \n <\/dt>\n
          \n   PHP\u5f00\u53d1\u7f13\u5b58\u7684\u6570\u636e\u4e00\u81f4\u6027\u4e0e\u5e76\u53d1\u63a7\u5236\n <\/dd>\n<\/dl>\n
          \n
          \n <\/dt>\n
          \n   \u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5730\u7406\u4f4d\u7f6e\u67e5\u8be2\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
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