{"id":201955,"date":"2025-05-10T13:21:38","date_gmt":"2025-05-10T05:21:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201955\/"},"modified":"2025-05-10T13:21:38","modified_gmt":"2025-05-10T05:21:38","slug":"redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e8%87%aa%e5%a2%9eid%e6%96%b9%e6%a1%88%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201955\/","title":{"rendered":"Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u5bf9\u6bd4"},"content":{"rendered":"

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

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u5bf9\u6bd4<\/h1>\n

\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929golang\u5b66\u4e60\u7f51\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u5bf9\u6bd4\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6570\u636e\u5e93<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n

\u5206\u5e03\u5f0f\u5e94\u7528\u5f00\u53d1\u4e2d\uff0c\u81ea\u589eID\u7684\u751f\u6210\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\u3002\u5728\u5355\u673a\u73af\u5883\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u636e\u5e93\u7684\u81ea\u589e\u4e3b\u952e\u6765\u5b9e\u73b0\u81ea\u589eID\uff0c\u4f46\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\uff0c\u4f7f\u7528\u81ea\u589e\u4e3b\u952e\u4f1a\u51fa\u73b0\u91cd\u590d\u7684\u60c5\u51b5\uff0c\u56e0\u6b64\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u7684\u65b9\u6848\u6765\u4fdd\u8bc1\u81ea\u589eID\u7684\u552f\u4e00\u6027\u3002<\/p>\n

Redis\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e09\u79cd\u5e38\u89c1\u7684Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\uff0c\u5e76\u5bf9\u5b83\u4eec\u8fdb\u884c\u6bd4\u8f83\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u9009\u62e9\u9002\u5408\u81ea\u5df1\u9879\u76ee\u7684\u65b9\u6848\u3002<\/p>\n

\u57fa\u4e8eredis incr\u547d\u4ee4<\/p>\n

Redis\u63d0\u4f9b\u4e86\u4e00\u4e2aincr\u547d\u4ee4\uff0c\u53ef\u4ee5\u5bf9\u6307\u5b9a\u7684key\u8fdb\u884c\u81ea\u589e\u64cd\u4f5c\uff0c\u5e76\u8fd4\u56de\u81ea\u589e\u540e\u7684\u503c\u3002\u5728\u4f7f\u7528incr\u547d\u4ee4\u751f\u6210\u81ea\u589eID\u65f6\uff0c\u53ef\u4ee5\u5c06key\u8bbe\u7f6e\u4e3a\u67d0\u4e2a\u56fa\u5b9a\u5b57\u7b26\u4e32\uff0c\u6bcf\u6b21\u64cd\u4f5c\u5bf9\u8fd9\u4e2a\u5b57\u7b26\u4e32\u8fdb\u884c\u81ea\u589e\u5373\u53ef\u3002<\/p>\n

\u4f7f\u7528Redis\u751f\u6210\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u7684\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

from redis import StrictRedis\n\nredis = StrictRedis(host='localhost', port=6379, db=0)\n\ndef get_next_id():\n    return redis.incr('id_generator')<\/pre>\n
\u7531\u4e8eRedis\u7684incr\u547d\u4ee4\u662f\u539f\u5b50\u64cd\u4f5c\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u5728\u591a\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u8bbf\u95ee\u65f6\uff0c\u751f\u6210\u7684ID\u662f\u552f\u4e00\u7684\u3002<\/p>\n
\u57fa\u4e8eredis incr\u547d\u4ee4\u7684\u65b9\u6848\u975e\u5e38\u7b80\u5355\uff0c\u4f46\u6709\u4e00\u4e2a\u81f4\u547d\u7684\u7f3a\u70b9\uff1aID\u4f1a\u4e00\u76f4\u81ea\u589e\u4e0b\u53bb\uff0c\u5f53\u8fbe\u5230Redis\u7684\u6700\u5927\u53ef\u7528\u503c\u65f6\uff08\u9ed8\u8ba4\u4e3a2^31-1\uff09\uff0c\u4f1a\u8fd4\u56de\u9519\u8bef\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u5728\u7cfb\u7edf\u4e0a\u7ebf\u540e\u957f\u65f6\u95f4\u4e0d\u91cd\u542f\u670d\u52a1\uff0cID\u4f1a\u4e0d\u53ef\u7528\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u6216\u6570\u636e\u4e0d\u8fde\u7eed\u3002<\/p>\n
\u57fa\u4e8eredis\u811a\u672c Lua\u811a\u672c<\/p>\n
\u4e3a\u4e86\u907f\u514dRedis\u81ea\u589eID\u957f\u65f6\u95f4\u4e0d\u53ef\u7528\u7684\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Lua\u811a\u672c\u6765\u63a7\u5236\u81ea\u589eID\u7684\u8303\u56f4\u3002Lua\u811a\u672c\u53ef\u4ee5\u5728\u4e00\u4e2a\u539f\u5b50\u6027\u64cd\u4f5c\u4e2d\u5b8c\u6210\u591a\u4e2a\u64cd\u4f5c\uff0c\u8fd9\u4f7f\u5f97\u5728\u751f\u6210\u81ea\u589eID\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u6765\u89c4\u5b9a\u5728\u54ea\u4e2a\u8303\u56f4\u5185\u751f\u6210\u81ea\u589eID\uff0c\u800c\u4e0d\u662f\u4e00\u76f4\u81ea\u589e\u4e0b\u53bb\u3002<\/p>\n
\u4e0b\u9762\u662f\u57fa\u4e8eLua\u811a\u672c\u5b9e\u73b0\u7684Redis\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u7684\u4ee3\u7801\uff1a<\/p>\n
from redis import StrictRedis\n\nredis = StrictRedis(host='localhost', port=6379, db=0)\n\nSCRIPT = \"\"\"\nlocal name = KEYS[1]\nlocal start = tonumber(ARGV[1])\nlocal stop = tonumber(ARGV[2])\nif redis.call('exists', name) == 0 then\n    redis.call('set', name, start)\n    return tonumber(start)\nend\nlocal id = redis.call('incr', name)\nif id < stop then\n    return tonumber(id)\nelse\n    redis.call('set', name, start)\n    return tonumber(start)\nend\n\"\"\"\n\ndef get_next_id(start, stop):\n    result = redis.eval(script=SCRIPT, keys=['id_generator'], args=[start, stop])\n    return result<\/pre>\n
\u5728\u8fd9\u4e2aLua\u811a\u672c\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e24\u4e2a\u53c2\u6570start\u548cstop\uff0c\u7528\u4e8e\u63a7\u5236\u81ea\u589eID\u7684\u751f\u6210\u8303\u56f4\u3002\u5982\u679cRedis\u4e2d\u4e0d\u5b58\u5728id_generator\u8fd9\u4e2akey\uff0c\u5219\u5c06\u5176\u521d\u59cb\u5316\u4e3astart\uff0c\u8fd4\u56destart\uff1b\u5426\u5219\u901a\u8fc7Redis\u7684incr\u547d\u4ee4\u5bf9id_generator\u8fdb\u884c\u81ea\u589e\uff0c\u5e76\u5224\u65ad\u81ea\u589e\u540e\u7684\u503c\u662f\u5426\u8d85\u8fc7\u4e86stop\u7684\u503c\u3002\u5982\u679c\u8d85\u8fc7\u4e86\uff0c\u5c31\u5c06id_generator\u7684\u503c\u91cd\u7f6e\u4e3astart\uff0c\u8fd4\u56destart\uff1b\u5426\u5219\uff0c\u8fd4\u56de\u751f\u6210\u7684\u65b0\u7684ID\u3002<\/p>\n
\u8fd9\u79cd\u57fa\u4e8eLua\u811a\u672c\u7684\u5b9e\u73b0\u65b9\u6848\u53ef\u4ee5\u7075\u6d3b\u63a7\u5236\u81ea\u589eID\u7684\u751f\u6210\u8303\u56f4\uff0c\u4f46\u5b9e\u73b0\u8d77\u6765\u6bd4\u8f83\u590d\u6742\uff0c\u9700\u8981\u4f7f\u7528Redis\u7684eval\u547d\u4ee4\u6765\u6267\u884cLua\u811a\u672c\uff0c\u5e76\u4f20\u9012\u53c2\u6570\u3002<\/p>\n
\u57fa\u4e8eredis Redlock<\/p>\n
Redlock\u662fRedis\u63d0\u4f9b\u7684\u4e00\u79cd\u5206\u5e03\u5f0f\u9501\u65b9\u6848\uff0c\u53ef\u4ee5\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u4fdd\u8bc1\u540c\u4e00\u4e2a\u8d44\u6e90\u5728\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u88ab\u4e00\u4e2a\u5ba2\u6237\u7aef\u8bbf\u95ee\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Redlock\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\uff0c\u4fdd\u8bc1\u751f\u6210\u7684\u81ea\u589eID\u662f\u552f\u4e00\u7684\u3002<\/p>\n
\u4f7f\u7528Redlock\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u7684\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
from redis import StrictRedis\nfrom redlock import Redlock\n\nredis = StrictRedis(host='localhost', port=6379, db=0)\nredlock = Redlock([{\"host\": \"localhost\", \"port\": 6379, \"db\": 0}], retry_times=3)\n\ndef get_next_id():\n    with redlock.lock('id_lock', 1000):\n        return redis.incr('id_generator')<\/pre>\n
\u901a\u8fc7\u4f7f\u7528Redlock\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\uff0c\u6211\u4eec\u53ef\u4ee5\u907f\u514d\u5728\u591a\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u8bbf\u95ee\u65f6ID\u751f\u6210\u91cd\u590d\u7684\u95ee\u9898\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u751f\u6210\u81ea\u589eID\u65f6\u52a0\u9501\uff0c\u9632\u6b62\u51fa\u73b0\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002<\/p>\n
\u4f46\u662f\uff0c\u7531\u4e8e\u52a0\u9501\u64cd\u4f5c\u9700\u8981\u6d88\u8017\u5927\u91cf\u7684\u65f6\u95f4\u548c\u8d44\u6e90\uff0c\u56e0\u6b64\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\uff0cRedlock\u7684\u6027\u80fd\u53ef\u80fd\u4f1a\u6709\u6240\u4e0b\u964d\u3002<\/p>\n
\u5bf9\u6bd4\u5206\u6790<\/p>\n
\u4e09\u79cdRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u6211\u4eec\u6765\u5206\u6790\u4e00\u4e0b\u5b83\u4eec\u7684\u5bf9\u6bd4\uff1a<\/p>\n
    \n
  1. \u57fa\u4e8eredis incr\u547d\u4ee4<\/li>\n<\/ol>\n
    \u4f18\u70b9\uff1a\u5b9e\u73b0\u7b80\u5355\uff0c\u65b9\u4fbf\u5feb\u6377\u3002<\/p>\n
    \u7f3a\u70b9\uff1aID\u4f1a\u4e00\u76f4\u81ea\u589e\u4e0b\u53bb\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0ID\u4e0d\u53ef\u7528\u3001\u6570\u636e\u4e22\u5931\u6216\u6570\u636e\u4e0d\u8fde\u7eed\u7684\u95ee\u9898\u3002<\/p>\n
    \u9002\u7528\u573a\u666f\uff1a\u7b80\u5355\u4e1a\u52a1\u573a\u666f\uff0c\u5bf9\u6570\u636eID\u7684\u8fde\u7eed\u6027\u8981\u6c42\u4e0d\u9ad8\u3002<\/p>\n
      \n
    1. \u57fa\u4e8eredis\u811a\u672cLua\u811a\u672c<\/li>\n<\/ol>\n
      \u4f18\u70b9\uff1a\u53ef\u4ee5\u7075\u6d3b\u63a7\u5236\u81ea\u589eID\u7684\u751f\u6210\u8303\u56f4\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u8fde\u7eed\u6027\u3002<\/p>\n
      \u7f3a\u70b9\uff1a\u5b9e\u73b0\u590d\u6742\uff0c\u9700\u8981\u4f7f\u7528Redis\u7684eval\u547d\u4ee4\u6765\u6267\u884cLua\u811a\u672c\uff0c\u5e76\u4f20\u9012\u53c2\u6570\u3002<\/p>\n
      \u9002\u7528\u573a\u666f\uff1a\u5bf9\u6570\u636eID\u7684\u8fde\u7eed\u6027\u3001\u4e1a\u52a1\u903b\u8f91\u8981\u6c42\u6bd4\u8f83\u4e25\u683c\u7684\u573a\u666f\uff0c\u4f8b\u5982\u7535\u5546\u3001\u91d1\u878d\u7b49\u3002<\/p>\n
        \n
      1. \u57fa\u4e8eredis Redlock<\/li>\n<\/ol>\n
        \u4f18\u70b9\uff1a\u52a0\u9501\u64cd\u4f5c\u4fdd\u8bc1\u4e86\u7ebf\u7a0b\u5b89\u5168\uff0c\u907f\u514d\u4e86\u6570\u636e\u91cd\u590d\u751f\u6210\u7684\u95ee\u9898\u3002<\/p>\n
        \u7f3a\u70b9\uff1a\u7531\u4e8e\u52a0\u9501\u64cd\u4f5c\u9700\u8981\u6d88\u8017\u5927\u91cf\u7684\u65f6\u95f4\u548c\u8d44\u6e90\uff0c\u56e0\u6b64\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\uff0c\u6027\u80fd\u53ef\u80fd\u4f1a\u4e0b\u964d\u3002<\/p>\n
        \u9002\u7528\u573a\u666f\uff1a\u9ad8\u5e76\u53d1\u3001\u5206\u5e03\u5f0f\u3001\u5bf9\u6570\u636eID\u7684\u8fde\u7eed\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\u3002<\/p>\n
        \u7ed3\u8bba<\/p>\n
        \u6839\u636e\u4ee5\u4e0a\u5bf9\u6bd4\u5206\u6790\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u51fa\u4ee5\u4e0b\u7ed3\u8bba\uff1a<\/p>\n
          \n
        1. \u57fa\u4e8eredis incr\u547d\u4ee4\u548c\u57fa\u4e8eredis Redlock\u4e24\u79cd\u65b9\u6848\u9002\u7528\u8303\u56f4\u6bd4\u8f83\u72ed\u7a84\uff0c\u5e76\u4e0d\u9002\u7528\u4e8e\u6240\u6709\u573a\u666f\u3002<\/li>\n
        2. \u57fa\u4e8eredis\u811a\u672cLua\u811a\u672c\u65b9\u6848\u53ef\u4ee5\u7075\u6d3b\u63a7\u5236\u81ea\u589eID\u7684\u751f\u6210\u8303\u56f4\uff0c\u9002\u7528\u4e8e\u8981\u6c42\u6570\u636eID\u8fde\u7eed\u6027\u3001\u4e1a\u52a1\u903b\u8f91\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\u3002<\/li>\n<\/ol>\n
          \u56e0\u6b64\uff0c\u5728\u9009\u62e9Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u81ea\u589eID\u65b9\u6848\u65f6\uff0c\u9700\u8981\u8003\u8651\u4e1a\u52a1\u573a\u666f\u7684\u5177\u4f53\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6848\u3002<\/p>\n
          \n
          \n <\/dt>\n
          \n   \u4f7f\u7528Gin\u6846\u67b6\u5b9e\u73b0API\u6587\u6863\u81ea\u52a8\u751f\u6210\u548c\u6587\u6863\u4e2d\u5fc3\u529f\u80fd\n <\/dd>\n<\/dl>\n
          \n
          \n <\/dt>\n
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