{"id":33536,"date":"2023-08-17T18:49:45","date_gmt":"2023-10-29T00:55:31","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%83%b3%e5%9c%a8rails%e4%b8%ad%e4%bd%bf%e7%94%a8redis%e8%bf%9b%e8%a1%8c%e4%ba%92%e6%96%a5%e6%8e%a7%e5%88%b6%e3%80%82\/"},"modified":"2024-04-30T18:57:52","modified_gmt":"2024-04-30T10:57:52","slug":"%e6%83%b3%e5%9c%a8rails%e4%b8%ad%e4%bd%bf%e7%94%a8redis%e8%bf%9b%e8%a1%8c%e4%ba%92%e6%96%a5%e6%8e%a7%e5%88%b6%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%83%b3%e5%9c%a8rails%e4%b8%ad%e4%bd%bf%e7%94%a8redis%e8%bf%9b%e8%a1%8c%e4%ba%92%e6%96%a5%e6%8e%a7%e5%88%b6%e3%80%82\/","title":{"rendered":"\u60f3\u5728Rails\u4e2d\u4f7f\u7528Redis\u8fdb\u884c\u4e92\u65a5\u63a7\u5236"},"content":{"rendered":"<h2>\u7ed9\u5b9a\u80cc\u666f<\/h2>\n<p>\u5728\u7528\u6237\u767b\u5f55\u65f6\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u4e00\u9879\u66f4\u65b0\u5927\u91cf\u6570\u636e\u7684\u5904\u7406\u3002\u8fd9\u4e2a\u66f4\u65b0\u5904\u7406\u53ef\u4ee5\u4fdd\u6301\u6700\u65b0\u72b6\u6001\uff0c\u53ea\u9700\u8981\u5927\u7ea6\u6bcf\u9694\u51e0\u4e2a\u5c0f\u65f6\u6267\u884c\u4e00\u6b21\u3002\u7136\u800c\uff0c\u9664\u4e86\u767b\u5f55\u65f6\uff0c\u8fd8\u53ef\u80fd\u540c\u65f6\u4ece\u591a\u4e2a\u5730\u65b9\u8bbf\u95ee\u5230\u66f4\u65b0\u5904\u7406\uff0c\u4e3a\u4e86\u9632\u6b62\u5e76\u884c\u6267\u884c\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u6392\u4ed6\u63a7\u5236\u3002\u7136\u800c\uff0c\u7531\u4e8e\u66f4\u65b0\u5904\u7406\u7684\u9519\u8bef\u65e5\u5fd7\u7b49\u56e0\u7d20\uff0c\u6709\u4eba\u6000\u7591\u6392\u4ed6\u63a7\u5236\u662f\u5426\u8fd0\u4f5c\u6b63\u5e38\u3002\u56e0\u6b64\uff0c\u51b3\u5b9a\u8fdb\u884c\u8c03\u67e5\u548c\u6539\u8fdb\u3002<\/p>\n<h2>\u73af\u5883<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby 3.1<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Rails 7.0.2<\/ul>\n<h2>\u4f20\u7edf\u7684\u4e92\u65a5\u63a7\u5236<\/h2>\n<p>\u5728\u8fc7\u53bb\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Rails.cache\u6765\u8fdb\u884c\u6392\u4ed6\u63a7\u5236\u3002Rails.cache\u5df2\u7ecf\u914d\u7f6e\u4e3a\u4f7f\u7528Redis\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\"># \u66f4\u65b0\u51e6\u7406\u51e6\u7406\u30af\u30e9\u30b9<\/span>\r\n\r\n<span class=\"c1\"># \u66f4\u65b0\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u969b\u306b\u6392\u4ed6\u5236\u5fa1\u3059\u308b<\/span>\r\n<span class=\"c1\"># value\u306e\u5024\u304ctrue\u306a\u3089\u30ed\u30c3\u30af\u4e2d\u3001false\u306a\u3089\u89e3\u9664\u4e2d\u3068\u3059\u308b<\/span>\r\n<span class=\"c1\"># \u30ed\u30c3\u30af\u3059\u308b<\/span>\r\n<span class=\"n\">key<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'locking_id:1'<\/span>\r\n<span class=\"no\">Rails<\/span><span class=\"p\">.<\/span><span class=\"nf\">cache<\/span><span class=\"p\">.<\/span><span class=\"nf\">write<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">,<\/span> <span class=\"kp\">true<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"c1\"># \u301c\u301c\u66f4\u65b0\u51e6\u7406\u301c\u301c<\/span>\r\n\r\n<span class=\"c1\"># \u30ed\u30c3\u30af\u3092\u89e3\u9664\u3059\u308b<\/span>\r\n<span class=\"no\">Rails<\/span><span class=\"p\">.<\/span><span class=\"nf\">cache<\/span><span class=\"p\">.<\/span><span class=\"nf\">write<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">,<\/span> <span class=\"kp\">false<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c1\"># \u66f4\u65b0\u51e6\u7406\u3092\u547c\u3073\u51fa\u3059\u524d\u306b\u30ed\u30c3\u30af\u304c\u639b\u304b\u3063\u3066\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b<\/span>\r\n<span class=\"c1\"># \u30ed\u30c3\u30af\u304c\u304b\u304b\u3063\u3066\u3044\u308c\u3070true, \u89e3\u9664\u4e2d\u306a\u3089false, \u53d6\u5f97\u3067\u304d\u306a\u3044\u3068\u304d\u306fnil\u306a\u306e\u3067false\u3092\u8fd4\u3059\u3088\u3046\u306b\u3059\u308b<\/span>\r\n<span class=\"n\">key<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'locking_id:1'<\/span>\r\n<span class=\"n\">is_lock<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Rails<\/span><span class=\"p\">.<\/span><span class=\"nf\">cache<\/span><span class=\"p\">.<\/span><span class=\"nf\">read<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">)<\/span> <span class=\"o\">||<\/span> <span class=\"kp\">false<\/span> \r\n\r\n<span class=\"k\">unless<\/span> <span class=\"n\">is_lock<\/span>\r\n\r\n\t<span class=\"c1\"># \u301c\u301c\u66f4\u65b0\u51e6\u7406\u30af\u30e9\u30b9\u3092\u547c\u3073\u51fa\u3059\u301c\u301c<\/span>\r\n\r\n<span class=\"k\">end<\/span>\r\n<\/code><\/pre>\n<p>\u8d77\u521d\u770b\u8d77\u6765\u5e76\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u5728\u786e\u8ba4\u4e92\u65a5\u72b6\u6001\u5e76\u8fdb\u884c\u52a0\u9501\u4e4b\u524d\uff0c\u5728\u4ee3\u7801\u4e2d\u6709\u51e0\u5341\u884c\u7684\u95f4\u9694\uff0c\u51e0\u4e4e\u540c\u65f6\u6267\u884c\u7684\u4e24\u6b21\u8bbf\u95ee\u7b49\uff0c\u5728\u5b9e\u9645\u60c5\u51b5\u4e0b\uff0c\u91cd\u590d\u7684\u66f4\u65b0\u5904\u7406\u6b63\u5728\u901a\u8fc7\u8fd9\u4e2a\u95f4\u9694\u6267\u884c\u591a\u6b21\u3002<\/p>\n<h2>\u4f18\u5316\u7684\u4e92\u65a5\u63a7\u5236<\/h2>\n<p>\u4e3a\u4e86\u540c\u65f6\u8fdb\u884c\u786e\u8ba4\u548c\u72ec\u5360\u72b6\u6001\u7684\u66f4\u65b0\uff0c\u6211\u4eec\u51b3\u5b9a\u4f7f\u7528Redis\u7684SETNX\u65b9\u6cd5\u3002<\/p>\n<h3>\u4f7f\u7528SETNX\u65b9\u6cd5<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Set not exists \u306e\u7565\u3067\u3001key\u304c\u5b58\u5728\u3057\u3066\u306a\u3051\u308c\u3070\u305d\u306e\u5024\u3092\u30bb\u30c3\u30c8\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30bb\u30c3\u30c8\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u30891\u3001\u30bb\u30c3\u30c8\u3067\u304d\u306a\u304b\u3063\u305f\u30890\u3092\u8fd4\u3057\u3066\u304f\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u73fe\u5728\u306fSet\u30e1\u30bd\u30c3\u30c9\u306b\u3042\u308bnx\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u3082\u540c\u3058\u3053\u3068\u304c\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u53c2\u8003\uff1ahttps:\/\/redis.io\/commands\/setnx\/<\/ul>\n<h3>\u5b9e\u65bd\u540e\u7684\u7ed3\u679c<\/h3>\n<pre class=\"post-pre\"><code><span class=\"c1\"># \u66f4\u65b0\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u969b\u306b\u6392\u4ed6\u5236\u5fa1\u3059\u308b<\/span>\r\n\r\n<span class=\"c1\"># Redis\u3068\u63a5\u7d9a\u3059\u308b<\/span>\r\n<span class=\"n\">redis<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Redis<\/span><span class=\"p\">.<\/span><span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"o\">...<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"c1\"># \u30ed\u30c3\u30af\u3059\u308b<\/span>\r\n<span class=\"n\">key<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'locking_id:1'<\/span>\r\n<span class=\"n\">is_set<\/span> <span class=\"o\">=<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"nf\">set<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">,<\/span> <span class=\"kp\">true<\/span><span class=\"p\">,<\/span> <span class=\"n\">nx<\/span><span class=\"ss\">:true<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"c1\"># \u30bb\u30c3\u30c8\u3067\u304d\u306a\u304b\u3063\u305f\u3089\u30ed\u30c3\u30af\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u66f4\u65b0\u51e6\u7406\u305b\u305a\u306b\u51e6\u7406\u3092\u629c\u3051\u308b<\/span>\r\n<span class=\"k\">return<\/span> <span class=\"k\">unless<\/span> <span class=\"n\">is_set<\/span>\r\n\r\n<span class=\"c1\"># \u301c\u301c\u66f4\u65b0\u51e6\u7406\u301c\u301c<\/span>\r\n\r\n<span class=\"c1\"># \u30ed\u30c3\u30af\u3092\u89e3\u9664\u3059\u308b<\/span>\r\n<span class=\"c1\"># \u89e3\u9664\u3059\u308b\u969b\u306f\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u3066\u304a\u304f<\/span>\r\n<span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"nf\">del<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u6837\u7684\u5b9e\u73b0\uff0c\u786e\u8ba4\u548c\u9501\u5b9a\u540c\u65f6\u8fdb\u884c\uff0c\u56e0\u6b64\u5373\u4f7f\u5728\u51e0\u4e4e\u540c\u65f6\u88ab\u8bbf\u95ee\u65f6\u4e5f\u80fd\u5b9e\u73b0\u6392\u4ed6\u63a7\u5236\u3002<\/p>\n<h3>\u5728Rails\u7684\u7f13\u5b58\u4e2d\u4e0d\u53ef\u7528\u5417\uff1f<\/h3>\n<p>\u6211\u6700\u521d\u8003\u8651\u662f\u5426\u53ef\u4ee5\u901a\u8fc7Rails.cache\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u4e0e\u4f20\u7edf\u65b9\u5f0f\u76f8\u540c\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u5c1d\u8bd5\u4f7f\u7528Rails.cache.write\u5e76\u4f20\u9012\u9009\u9879\u3002\u4f46\u8bd5\u9a8c\u4e0b\u6765\u53d1\u73b0\uff0c\u5373\u4f7f\u8fd9\u6837\u5199\u5e76\u5c1d\u8bd5\u4f7f\u7528nx\u9009\u9879\uff0c\u529f\u80fd\u4e5f\u65e0\u6cd5\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\"># \u5e38\u306b\u30bb\u30c3\u30c8\u3055\u308c\u3066\u304a\u308anx\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u6a5f\u80fd\u3057\u3066\u306a\u3044<\/span>\r\n<span class=\"n\">is_lock<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Rails<\/span><span class=\"p\">.<\/span><span class=\"nf\">cache<\/span><span class=\"p\">.<\/span><span class=\"nf\">write<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"ss\">nx: <\/span><span class=\"kp\">true<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u7ed3\u675f<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u8fdb\u884c\u6392\u4ed6\u63a7\u5236\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528nx\u9009\u9879\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed9\u5b9a\u80cc\u666f \u5728\u7528\u6237\u767b\u5f55\u65f6\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u4e00\u9879\u66f4\u65b0\u5927\u91cf\u6570\u636e\u7684\u5904\u7406\u3002\u8fd9\u4e2a\u66f4\u65b0\u5904\u7406\u53ef\u4ee5\u4fdd\u6301\u6700\u65b0\u72b6\u6001\uff0c\u53ea\u9700\u8981\u5927\u7ea6\u6bcf\u9694\u51e0\u4e2a\u5c0f\u65f6 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33536","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u60f3\u5728Rails\u4e2d\u4f7f\u7528Redis\u8fdb\u884c\u4e92\u65a5\u63a7\u5236 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u60f3\u5728rails\u4e2d\u4f7f\u7528redis\u8fdb\u884c\u4e92\u65a5\u63a7\u5236\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u60f3\u5728Rails\u4e2d\u4f7f\u7528Redis\u8fdb\u884c\u4e92\u65a5\u63a7\u5236\" \/>\n<meta property=\"og:description\" content=\"\u7ed9\u5b9a\u80cc\u666f \u5728\u7528\u6237\u767b\u5f55\u65f6\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u4e00\u9879\u66f4\u65b0\u5927\u91cf\u6570\u636e\u7684\u5904\u7406\u3002\u8fd9\u4e2a\u66f4\u65b0\u5904\u7406\u53ef\u4ee5\u4fdd\u6301\u6700\u65b0\u72b6\u6001\uff0c\u53ea\u9700\u8981\u5927\u7ea6\u6bcf\u9694\u51e0\u4e2a\u5c0f\u65f6 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u60f3\u5728rails\u4e2d\u4f7f\u7528redis\u8fdb\u884c\u4e92\u65a5\u63a7\u5236\u3002\/\" \/>\n<meta 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