{"id":202188,"date":"2025-05-10T09:14:11","date_gmt":"2025-05-10T01:14:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202188\/"},"modified":"2025-05-10T09:14:11","modified_gmt":"2025-05-10T01:14:11","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%92%8clua%e5%bc%80%e5%8f%91%e5%88%86%e5%b8%83%e5%bc%8f%e7%bc%93%e5%ad%98%e6%9b%b4%e6%96%b0%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202188\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5206\u5e03\u5f0f\u7f13\u5b58\u66f4\u65b0\u529f\u80fd"},"content":{"rendered":"

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

\u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5206\u5e03\u5f0f\u7f13\u5b58\u66f4\u65b0\u529f\u80fd<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5206\u5e03\u5f0f\u7f13\u5b58\u66f4\u65b0\u529f\u80fd\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

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\u4e3a\u4e86\u6f14\u793a\u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5206\u5e03\u5f0f\u7f13\u5b58\u66f4\u65b0\u529f\u80fd\uff0c\u6211\u4eec\u5c06\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7535\u5b50\u5546\u52a1\u7f51\u7ad9\uff0c\u6bcf\u4e2a\u5546\u54c1\u7684\u8be6\u7ec6\u4fe1\u606f\u90fd\u5b58\u50a8\u5728MySQL\u6570\u636e\u5e93\u4e2d\u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u6211\u4eec\u5c06\u5546\u54c1\u4fe1\u606f\u7f13\u5b58\u5728Redis\u4e2d\uff0c\u540c\u65f6\u5b9a\u671f\u4eceMySQL\u4e2d\u540c\u6b65\u66f4\u65b0\u5546\u54c1\u4fe1\u606f\u3002<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Redis\u4e2d\u521b\u5efa\u4e00\u4e2a\u5546\u54c1\u4fe1\u606f\u7684\u7f13\u5b58\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Hash\u7c7b\u578b\u6765\u5b58\u50a8\u6bcf\u4e2a\u5546\u54c1\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5176\u4e2d\u952e\u4e3a\u5546\u54c1ID\uff0c\u503c\u4e3a\u4e00\u4e2a\u5305\u542b\u5546\u54c1\u5404\u4e2a\u5c5e\u6027\u7684\u54c8\u5e0c\u8868\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9009\u62e9\u5c06\u5546\u54c1\u7684\u540d\u79f0\u548c\u4ef7\u683c\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u3002<\/p>\n

local productId = ARGV[1]\nlocal productName = redis.call('HGET', 'product:' .. productId, 'name')\nlocal productPrice = redis.call('HGET', 'product:' .. productId, 'price')\n\nif not productName or not productPrice then\n    -- \u4eceMySQL\u4e2d\u67e5\u8be2\u5546\u54c1\u4fe1\u606f\n    -- ...\n    -- \u5c06\u5546\u54c1\u4fe1\u606f\u5b58\u50a8\u5230Redis\u7f13\u5b58\u4e2d\n    redis.call('HSET', 'product:' .. productId, 'name', 'iPhone')\n    redis.call('HSET', 'product:' .. productId, 'price', '9999')\nend\n\nreturn {\n    name = productName,\n    price = productPrice\n}<\/pre>\n
\u5728\u8fd9\u6bb5Lua\u811a\u672c\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u6839\u636e\u5546\u54c1ID\u67e5\u8be2Redis\u7f13\u5b58\u4e2d\u7684\u5546\u54c1\u540d\u79f0\u548c\u4ef7\u683c\u3002\u5982\u679c\u7f13\u5b58\u4e2d\u4e0d\u5b58\u5728\u8be5\u5546\u54c1\u7684\u4fe1\u606f\uff0c\u5219\u4eceMySQL\u4e2d\u67e5\u8be2\uff0c\u5e76\u5c06\u67e5\u8be2\u7ed3\u679c\u5b58\u50a8\u5230Redis\u7f13\u5b58\u4e2d\u3002\u6700\u540e\uff0c\u6211\u4eec\u5c06\u5546\u54c1\u7684\u540d\u79f0\u548c\u4ef7\u683c\u4f5c\u4e3a\u8fd4\u56de\u7ed3\u679c\u8fd4\u56de\u3002<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u8c03\u7528\u8fd9\u6bb5Lua\u811a\u672c\u6765\u83b7\u53d6\u5546\u54c1\u4fe1\u606f\u3002\u5728\u5927\u90e8\u5206\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u4f7f\u7528Redis\u5ba2\u6237\u7aef\u5e93\u6765\u6267\u884cLua\u811a\u672c\u3002\u4e0b\u9762\u662f\u4f7f\u7528Python Redis\u5e93\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
import redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef get_product_info(product_id):\n    script = '''\n    local productId = ARGV[1]\n    local productName = redis.call('HGET', 'product:' .. productId, 'name')\n    local productPrice = redis.call('HGET', 'product:' .. productId, 'price')\n    \n    if not productName or not productPrice then\n        -- \u4eceMySQL\u4e2d\u67e5\u8be2\u5546\u54c1\u4fe1\u606f\n        -- ...\n        -- \u5c06\u5546\u54c1\u4fe1\u606f\u5b58\u50a8\u5230Redis\u7f13\u5b58\u4e2d\n        redis.call('HSET', 'product:' .. productId, 'name', 'iPhone')\n        redis.call('HSET', 'product:' .. productId, 'price', '9999')\n    end\n    \n    return {\n        name = productName,\n        price = productPrice\n    }\n    '''\n\n    result = r.eval(script, 0, product_id)\n    return result<\/pre>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Python Redis\u5e93\u8fde\u63a5Redis\uff0c\u5e76\u5b9a\u4e49\u4e86\u4e00\u4e2aget_product_info\u51fd\u6570\u6765\u83b7\u53d6\u5546\u54c1\u4fe1\u606f\u3002\u6211\u4eec\u5c06\u4e4b\u524d\u7684Lua\u811a\u672c\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u4f20\u9012\u7ed9eval\u65b9\u6cd5\uff0c\u5e76\u5c06\u5546\u54c1ID\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9Lua\u811a\u672c\u3002\u6700\u540e\uff0c\u6211\u4eec\u5c06\u5546\u54c1\u4fe1\u606f\u4f5c\u4e3a\u5b57\u5178\u7c7b\u578b\u8fd4\u56de\u3002<\/p>\n
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\u603b\u7ed3\u8d77\u6765\uff0cRedis\u548cLua\u7684\u7ed3\u5408\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7684\u66f4\u65b0\u529f\u80fd\u3002\u901a\u8fc7\u7f16\u5199Lua\u811a\u672c\u5e76\u4e0eRedis\u8fdb\u884c\u4ea4\u4e92\uff0c\u6211\u4eec\u53ef\u4ee5\u9ad8\u6548\u5730\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u7f13\u5b58\u7684\u66f4\u65b0\uff0c\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u4f7f\u7528MySQL\u548cJava\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u6e05\u6d17\u529f\u80fd\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528PHP\u5b9e\u73b0\u6570\u636e\u7684\u589e\u5220\u6539\u67e5\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5206...<\/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-202188","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202188","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=202188"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202188\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}