{"id":162781,"date":"2024-11-04T17:57:20","date_gmt":"2024-11-04T09:57:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162781\/"},"modified":"2024-11-04T17:57:21","modified_gmt":"2024-11-04T09:57:21","slug":"%e8%85%b3%e6%9c%ac%e5%9f%ba%e6%96%bcredis%e9%9b%86%e7%be%a4%e7%9a%84lua%e8%85%b3%e6%9c%ac%e7%a0%94%e7%a9%b6%ef%bc%88redis%e9%9b%86%e7%be%a4%e7%9a%84lua%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162781\/","title":{"rendered":"\u8173\u672c\u57fa\u65bcRedis\u96c6\u7fa4\u7684Lua\u8173\u672c\u7814\u7a76\uff08Redis\u96c6\u7fa4\u7684Lua\uff09"},"content":{"rendered":"<h1 id=\"%e8%85%b3%e6%9c%ac%e5%9f%ba%e6%96%bcredis%e9%9b%86%e7%be%a4%e7%9a%84lua%e8%85%b3%e6%9c%ac%e7%a0%94%e7%a9%b6%ef%bc%88redis%e9%9b%86%e7%be%a4%e7%9a%84lua%ef%bc%89-pSEPFPpAwm\">\u8173\u672c\u57fa\u65bcRedis\u96c6\u7fa4\u7684Lua\u8173\u672c\u7814\u7a76\uff08Redis\u96c6\u7fa4\u7684Lua\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u8655\u7406\u74b0\u5883\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u4e2d\uff0cRedis\u96c6\u7fa4\u7684\u4f7f\u7528\u8d8a\u4f86\u8d8a\u666e\u904d\u3002Lua\u8173\u672c\u7684\u5f15\u5165\u4f7f\u5f97Redis\u7684\u64cd\u4f5c\u66f4\u52a0\u9748\u6d3b\u548c\u9ad8\u6548\uff0c\u7279\u5225\u662f\u5728\u96c6\u7fa4\u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u57fa\u65bcRedis\u96c6\u7fa4\u7684Lua\u8173\u672c\u7684\u7279\u6027\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"redis%e9%9b%86%e7%be%a4%e6%a6%82%e8%bf%b0-pSEPFPpAwm\">Redis\u96c6\u7fa4\u6982\u8ff0<\/h2>\n<p>Redis\u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u67b6\u69cb\uff0c\u5141\u8a31\u6578\u64da\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e4b\u9593\u9032\u884c\u5206\u7247\u3002\u9019\u7a2e\u67b6\u69cb\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u5920\u64f4\u5c55\u7cfb\u7d71\u7684\u8655\u7406\u80fd\u529b\u3002Redis\u96c6\u7fa4\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u81ea\u52d5\u5206\u7247\uff1a\u6578\u64da\u81ea\u52d5\u5206\u4f48\u5230\u4e0d\u540c\u7684\u7bc0\u9ede\u4e0a\u3002<\/li>\n<li>\u9ad8\u53ef\u7528\u6027\uff1a\u652f\u6301\u4e3b\u5f9e\u8907\u88fd\uff0c\u7576\u4e3b\u7bc0\u9ede\u6545\u969c\u6642\uff0c\u5f9e\u7bc0\u9ede\u53ef\u4ee5\u81ea\u52d5\u63d0\u5347\u70ba\u4e3b\u7bc0\u9ede\u3002<\/li>\n<li>\u7121\u4e2d\u5fc3\u5316\uff1a\u6bcf\u500b\u7bc0\u9ede\u90fd\u662f\u7368\u7acb\u7684\uff0c\u6c92\u6709\u55ae\u9ede\u6545\u969c\u3002<\/li>\n<\/ul>\n<h2 id=\"lua%e8%85%b3%e6%9c%ac%e5%9c%a8redis%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-pSEPFPpAwm\">Lua\u8173\u672c\u5728Redis\u4e2d\u7684\u61c9\u7528<\/h2>\n<p>Lua\u662f\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u8173\u672c\u8a9e\u8a00\uff0cRedis\u5167\u5efa\u4e86\u5c0dLua\u7684\u652f\u6301\uff0c\u5141\u8a31\u7528\u6236\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u8173\u672c\u3002\u9019\u6a23\u505a\u7684\u597d\u8655\u5728\u65bc\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\uff0c\u56e0\u70ba\u6240\u6709\u7684\u64cd\u4f5c\u90fd\u5728\u670d\u52d9\u5668\u7aef\u5b8c\u6210\u3002\u4f7f\u7528Lua\u8173\u672c\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u539f\u5b50\u6027\uff1aLua\u8173\u672c\u5728Redis\u4e2d\u662f\u539f\u5b50\u57f7\u884c\u7684\uff0c\u9019\u610f\u5473\u8457\u5728\u8173\u672c\u57f7\u884c\u671f\u9593\uff0c\u5176\u4ed6\u547d\u4ee4\u4e0d\u6703\u5e72\u64fe\u3002<\/li>\n<li>\u6027\u80fd\u512a\u5316\uff1a\u901a\u904e\u6279\u91cf\u8655\u7406\u591a\u500b\u547d\u4ee4\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li>\u7c21\u5316\u908f\u8f2f\uff1a\u53ef\u4ee5\u5c07\u8907\u96dc\u7684\u908f\u8f2f\u5c01\u88dd\u5728\u4e00\u500b\u8173\u672c\u4e2d\uff0c\u6e1b\u5c11\u5ba2\u6236\u7aef\u7684\u8ca0\u64d4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8redis%e9%9b%86%e7%be%a4%e4%b8%ad%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-pSEPFPpAwm\">\u5728Redis\u96c6\u7fa4\u4e2d\u4f7f\u7528Lua\u8173\u672c<\/h2>\n<p>\u5728Redis\u96c6\u7fa4\u4e2d\u4f7f\u7528Lua\u8173\u672c\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u7279\u5b9a\u7684\u6311\u6230\u3002\u7531\u65bc\u6578\u64da\u5206\u4f48\u5728\u4e0d\u540c\u7684\u7bc0\u9ede\u4e0a\uff0c\u8173\u672c\u7684\u57f7\u884c\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u9ede\uff1a<\/p>\n<h3 id=\"1-%e9%8e%96%e5%ae%9a%e9%8d%b5-pSEPFPpAwm\">1. \u9396\u5b9a\u9375<\/h3>\n<p>\u5728\u96c6\u7fa4\u74b0\u5883\u4e2d\uff0cLua\u8173\u672c\u53ea\u80fd\u64cd\u4f5c\u540c\u4e00\u500b\u7bc0\u9ede\u4e0a\u7684\u9375\u3002\u5982\u679c\u8173\u672c\u9700\u8981\u64cd\u4f5c\u591a\u500b\u9375\uff0c\u9019\u4e9b\u9375\u5fc5\u9808\u4f4d\u65bc\u540c\u4e00\u500b\u54c8\u5e0c\u69fd\u4e2d\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528\u76f8\u540c\u7684\u54c8\u5e0c\u6a19\u7c64\u4f86\u5be6\u73fe\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>local key1 = \"user:1000\"\nlocal key2 = \"user:1000:profile\"\nif redis.call(\"exists\", key1) == 1 then\n    return redis.call(\"get\", key2)\nelse\n    return nil\nend\n<\/code><\/pre>\n<h3 id=\"2-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-pSEPFPpAwm\">2. \u932f\u8aa4\u8655\u7406<\/h3>\n<p>\u5728\u57f7\u884cLua\u8173\u672c\u6642\uff0c\u5fc5\u9808\u8003\u616e\u5230\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u3002\u53ef\u4ee5\u4f7f\u7528`pcall`\u4f86\u6355\u7372\u932f\u8aa4\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\uff1a<\/p>\n<pre><code>local status, err = pcall(function()\n    -- \u4f60\u7684\u908f\u8f2f\nend)\nif not status then\n    return \"Error: \" .. err\nend\n<\/code><\/pre>\n<h3 id=\"3-%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-pSEPFPpAwm\">3. \u6027\u80fd\u8003\u91cf<\/h3>\n<p>\u96d6\u7136Lua\u8173\u672c\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u4f46\u5728\u8a2d\u8a08\u8173\u672c\u6642\u4ecd\u9700\u8003\u616e\u5176\u57f7\u884c\u6548\u7387\u3002\u907f\u514d\u5728\u8173\u672c\u4e2d\u9032\u884c\u904e\u591a\u7684\u8a08\u7b97\u6216IO\u64cd\u4f5c\uff0c\u4ee5\u514d\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-pSEPFPpAwm\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bcRedis\u96c6\u7fa4\u7684Lua\u8173\u672c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5145\u5206\u5229\u7528Redis\u7684\u7279\u6027\uff0c\u5be6\u73fe\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u3002\u96a8\u8457\u5c0d\u6578\u64da\u8655\u7406\u9700\u6c42\u7684\u589e\u52a0\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u8853\u5c07\u5c0d\u958b\u767c\u8005\u7684\u5de5\u4f5c\u5927\u6709\u88e8\u76ca\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bcRedis\u96c6\u7fa4\u7684Lua\u8173\u672c\uff0c\u6df1\u5165\u7814\u7a76\u5176\u6027\u80fd\u512a\u5316\u3001\u61c9\u7528\u5834\u666f\u53ca\u5be6\u73fe\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-162781","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162781","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=162781"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162781\/revisions"}],"predecessor-version":[{"id":162782,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162781\/revisions\/162782"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}