{"id":202097,"date":"2025-05-10T10:00:06","date_gmt":"2025-05-10T02:00:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202097\/"},"modified":"2025-05-10T10:00:06","modified_gmt":"2025-05-10T02:00:06","slug":"redis%e4%b8%8elua%e5%bc%80%e5%8f%91%ef%bc%9a%e5%88%9b%e5%bb%ba%e7%81%b5%e6%b4%bb%e7%9a%84%e8%84%9a%e6%9c%ac%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202097\/","title":{"rendered":"Redis\u4e0eLua\u5f00\u53d1\uff1a\u521b\u5efa\u7075\u6d3b\u7684\u811a\u672c\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"

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

Redis\u4e0eLua\u5f00\u53d1\uff1a\u521b\u5efa\u7075\u6d3b\u7684\u811a\u672c\u89e3\u51b3\u65b9\u6848<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300aRedis\u4e0eLua\u5f00\u53d1\uff1a\u521b\u5efa\u7075\u6d3b\u7684\u811a\u672c\u89e3\u51b3\u65b9\u6848\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9…\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n

Redis\u4e0eLua\u5f00\u53d1\uff1a\u521b\u5efa\u7075\u6d3b\u7684\u811a\u672c\u89e3\u51b3\u65b9\u6848<\/p>\n

Redis\u662f\u4e00\u4e2a\u5feb\u901f\u3001\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u800cLua\u662f\u4e00\u79cd\u7b80\u5355\u3001\u8f7b\u91cf\u7ea7\u3001\u9ad8\u6548\u7684\u811a\u672c\u8bed\u8a00\u3002Redis\u4e0eLua\u7684\u7ed3\u5408\u4f7f\u5f97\u6211\u4eec\u80fd\u591f\u4f7f\u7528\u811a\u672c\u7684\u65b9\u5f0f\u5bf9Redis\u8fdb\u884c\u7075\u6d3b\u7684\u5f00\u53d1\uff0c\u4ece\u800c\u89e3\u51b3\u5404\u79cd\u95ee\u9898\u3002\u672c\u6587\u5c06\u4ecb\u7ecdRedis\u4e0eLua\u5f00\u53d1\u7684\u57fa\u672c\u539f\u7406\uff0c\u5e76\u901a\u8fc7\u5b9e\u9645\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5c55\u793a\u5982\u4f55\u521b\u5efa\u7075\u6d3b\u7684\u811a\u672c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

\u4e00\u3001\u4e3a\u4ec0\u4e48\u9009\u62e9Redis\u4e0eLua\u5f00\u53d1\uff1f<\/p>\n

    \n
  1. \u7075\u6d3b\u6027\uff1aRedis\u81ea\u5e26\u7684\u547d\u4ee4\u6bd4\u8f83\u6709\u9650\uff0c\u800c\u901a\u8fc7\u4f7f\u7528Lua\u811a\u672c\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u590d\u6742\u7684\u903b\u8f91\uff0c\u4f7f\u7528\u63a7\u5236\u6d41\u3001\u51fd\u6570\u7b49\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u7684\u529f\u80fd\u3002<\/li>\n
  2. \u6548\u7387\uff1a\u56e0\u4e3aLua\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u8bed\u8a00\uff0c\u5176\u8fd0\u884c\u6548\u7387\u975e\u5e38\u9ad8\u3002\u800cRedis\u5c06Lua\u811a\u672c\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u5e76\u76f4\u63a5\u5728\u5185\u5b58\u4e2d\u8fd0\u884c\uff0c\u907f\u514d\u4e86\u7f51\u7edc\u5f00\u9500\u548c\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u7684\u635f\u8017\uff0c\u56e0\u6b64\u6267\u884c\u6548\u7387\u76f8\u6bd4\u4e00\u822c\u7684Redis\u547d\u4ee4\u8981\u9ad8\u5f88\u591a\u3002<\/li>\n
  3. \u539f\u5b50\u6027\uff1a\u901a\u8fc7Redis\u7684EVAL\u547d\u4ee4\u6267\u884c\u811a\u672c\uff0cRedis\u4fdd\u8bc1\u4e86\u811a\u672c\u7684\u539f\u5b50\u6027\uff0c\u5373\u4f7f\u811a\u672c\u4e2d\u6709\u591a\u4e2a\u547d\u4ee4\uff0c\u4e5f\u80fd\u591f\u4fdd\u8bc1\u5b83\u4eec\u7684\u539f\u5b50\u6027\u6267\u884c\u3002<\/li>\n<\/ol>\n

    \u4e8c\u3001\u4f7f\u7528Lua\u811a\u672c\u6267\u884c\u547d\u4ee4<\/p>\n

    Redis\u63d0\u4f9b\u4e86EVAL\u547d\u4ee4\uff0c\u7528\u4e8e\u6267\u884cLua\u811a\u672c\u3002\u8be5\u547d\u4ee4\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fLua\u811a\u672c\u7684\u5185\u5bb9\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6267\u884c\u811a\u672c\u6240\u9700\u8981\u7684\u952e\u4e0e\u53c2\u6570\u3002<\/p>\n

    \u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7684Lua\u811a\u672c\u6765\u5b9e\u73b0\u5bf9\u67d0\u4e2a\u952e\u8fdb\u884c\u66f4\u65b0\u64cd\u4f5c\uff0c\u5e76\u8fd4\u56de\u66f4\u65b0\u540e\u7684\u503c\uff1a<\/p>\n

    local value = redis.call('get', KEYS[1])\nif value then\n    value = value + ARGV[1]\n    redis.call('set', KEYS[1], value)\nend\nreturn value<\/pre>\n
    \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7684\u65b9\u5f0f\u6765\u6267\u884c\u8be5\u811a\u672c\uff1a<\/p>\n
    redis-cli EVAL \"local value = redis.call('get', KEYS[1])\nif value then\n    value = value + ARGV[1]\n    redis.call('set', KEYS[1], value)\nend\nreturn value\" 1 mykey 10<\/pre>\n
    \u4e0a\u8ff0\u547d\u4ee4\u4e2d\uff0cKEYS[1]\u8868\u793a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0cARGV[1]\u8868\u793a\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff08\u5373\u589e\u52a0\u7684\u503c\uff09\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u6267\u884c\u590d\u6742\u7684\u903b\u8f91\uff0c\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u7684\u529f\u80fd\u3002<\/p>\n
    \u4e09\u3001\u811a\u672c\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c<\/p>\n
    \u5728Lua\u811a\u672c\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7KEYS\u548cARGV\u6765\u4f7f\u7528\u4f20\u5165\u7684\u53c2\u6570\uff0c\u5176\u4e2dKEYS\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u4fdd\u5b58\u4e86\u4f20\u5165\u7684\u952e\u7684\u5217\u8868\uff1bARGV\u4e5f\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u4fdd\u5b58\u4e86\u4f20\u5165\u7684\u53c2\u6570\u7684\u5217\u8868\u3002<\/p>\n
    \u811a\u672c\u6267\u884c\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528return\u8bed\u53e5\u6765\u8fd4\u56de\u7ed3\u679c\u3002\u53ef\u4ee5\u8fd4\u56de\u4efb\u4f55Redis\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b\uff0c\u6bd4\u5982\u5b57\u7b26\u4e32\u3001\u6574\u6570\u3001\u5217\u8868\u3001\u54c8\u5e0c\u3001\u96c6\u5408\u7b49\u3002<\/p>\n
    \u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7684Lua\u811a\u672c\u6765\u5b9e\u73b0\u83b7\u53d6\u67d0\u4e2a\u952e\u7684\u503c\uff0c\u5e76\u8fd4\u56de\u5176\u7c7b\u578b\uff1a<\/p>\n
    local value = redis.call('type', KEYS[1])\nreturn value<\/pre>\n
    \u56db\u3001\u811a\u672c\u7684\u590d\u7528\u548c\u7ba1\u7406<\/p>\n
    \u4e3a\u4e86\u65b9\u4fbf\u811a\u672c\u7684\u590d\u7528\u548c\u7ba1\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u811a\u672c\u4fdd\u5b58\u5728Redis\u4e2d\u3002Redis\u63d0\u4f9b\u4e86SCRIPT LOAD\u547d\u4ee4\uff0c\u7528\u4e8e\u5c06\u811a\u672c\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2aSHA1\u6821\u9a8c\u548c\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7SHA1\u6821\u9a8c\u548c\u6765\u6267\u884c\u811a\u672c\u3002<\/p>\n
    \u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7684Lua\u811a\u672c\u6765\u5b9e\u73b0\u5bf9\u67d0\u4e2a\u952e\u8fdb\u884c\u9012\u589e\u64cd\u4f5c\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n
    local value = redis.call('incrby', KEYS[1], ARGV[1])\nreturn value<\/pre>\n
    \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7684\u547d\u4ee4\u5c06\u8be5\u811a\u672c\u52a0\u8f7d\u5230Redis\u4e2d\uff0c\u5e76\u83b7\u53d6\u5230SHA1\u6821\u9a8c\u548c\uff1a<\/p>\n
    redis-cli SCRIPT LOAD \"local value = redis.call('incrby', KEYS[1], ARGV[1])\nreturn value\"<\/pre>\n
    \u52a0\u8f7d\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7684\u547d\u4ee4\u6765\u6267\u884c\u8be5\u811a\u672c\uff1a<\/p>\n
    redis-cli EVALSHA fae0a05ff12b0374cf37a2121c6e8873ada2f3a8 1 mykey 10<\/pre>\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u7ba1\u7406\u5927\u91cf\u7684\u811a\u672c\uff0c\u5e76\u51cf\u5c11\u7f51\u7edc\u5f00\u9500\u548c\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u7684\u635f\u8017\u3002<\/p>\n
    \u4e94\u3001\u603b\u7ed3<\/p>\n
    \u901a\u8fc7Redis\u4e0eLua\u7684\u7ed3\u5408\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Lua\u811a\u672c\u6765\u5bf9Redis\u8fdb\u884c\u7075\u6d3b\u7684\u5f00\u53d1\uff0c\u5b9e\u73b0\u5404\u79cd\u590d\u6742\u7684\u529f\u80fd\u3002Lua\u811a\u672c\u6267\u884c\u7684\u6548\u7387\u6bd4\u4e00\u822c\u7684Redis\u547d\u4ee4\u8981\u9ad8\u5f88\u591a\uff0c\u800c\u4e14\u80fd\u591f\u4fdd\u8bc1\u811a\u672c\u7684\u539f\u5b50\u6027\u6267\u884c\u3002\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u811a\u672c\u7684\u590d\u7528\u548c\u7ba1\u7406\u6765\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n
    \u5e0c\u671b\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u5bf9Redis\u4e0eLua\u5f00\u53d1\u6709\u66f4\u6df1\u5165\u7684\u7406\u89e3\uff0c\u5e76\u80fd\u591f\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7075\u6d3b\u5e94\u7528\u3002<\/p>\n
    \n
    \n <\/dt>\n
    \n   MySQL\u4e2d\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7684\u81ea\u52a8\u5316\u7ba1\u7406\u548c\u6545\u969c\u6062\u590d\uff1f\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   \u5229\u7528Python\u548cRedis\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u6536\u96c6\uff1a\u5982\u4f55\u76d1\u63a7\u7cfb\u7edf\u6027\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    Redis\u4e0eLua\u5f00\u53d1\uff1a\u521b\u5efa\u7075\u6d3b...<\/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-202097","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202097","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=202097"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202097\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}