{"id":184514,"date":"2024-11-10T13:51:24","date_gmt":"2024-11-10T05:51:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/184514\/"},"modified":"2024-11-10T13:51:25","modified_gmt":"2024-11-10T05:51:25","slug":"%e4%bd%bf%e7%94%a8redis%e7%9b%a3%e6%8e%a7key%e8%ae%8a%e5%8c%96%ef%bc%8c%e5%85%a8%e9%9d%a2%e6%8f%90%e5%8d%87%e7%b3%bb%e7%b5%b1%e6%80%a7%e8%83%bd%ef%bc%88redis%e7%9b%a3%e6%8e%a7key%e8%ae%8a%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/184514\/","title":{"rendered":"\u4f7f\u7528Redis\u76e3\u63a7Key\u8b8a\u5316\uff0c\u5168\u9762\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff08redis\u76e3\u63a7key\u8b8a\u5316\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e7%9b%a3%e6%8e%a7key%e8%ae%8a%e5%8c%96%ef%bc%8c%e5%85%a8%e9%9d%a2%e6%8f%90%e5%8d%87%e7%b3%bb%e7%b5%b1%e6%80%a7%e8%83%bd-RiUgHgaQxP\">\u4f7f\u7528Redis\u76e3\u63a7Key\u8b8a\u5316\uff0c\u5168\u9762\u63d0\u5347\u7cfb\u7d71\u6027\u80fd<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u7cfb\u7d71\u6027\u80fd\u7684\u512a\u5316\u6210\u70ba\u4e86\u4f01\u696d\u6210\u529f\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\u7684\u61c9\u7528\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u76e3\u63a7Key\u7684\u8b8a\u5316\uff0c\u4ee5\u5168\u9762\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-RiUgHgaQxP\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u5167\u5b58\u5b58\u53d6\u7279\u6027\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e7%9b%a3%e6%8e%a7key%e8%ae%8a%e5%8c%96-RiUgHgaQxP\">\u70ba\u4ec0\u9ebc\u9700\u8981\u76e3\u63a7Key\u8b8a\u5316<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u7684\u904e\u7a0b\u4e2d\uff0cKey\u7684\u8b8a\u5316\u53ef\u80fd\u6703\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u7576\u67d0\u500bKey\u7684\u503c\u983b\u7e41\u8b8a\u5316\u6642\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u7de9\u5b58\u5931\u6548\uff0c\u5f9e\u800c\u589e\u52a0\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002\u6b64\u5916\uff0c\u76e3\u63a7Key\u7684\u8b8a\u5316\u9084\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u554f\u984c\uff0c\u4e26\u9032\u884c\u512a\u5316\u3002<\/p>\n<h2 id=\"redis%e7%9a%84key%e7%9b%a3%e6%8e%a7%e6%96%b9%e6%b3%95-RiUgHgaQxP\">Redis\u7684Key\u76e3\u63a7\u65b9\u6cd5<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u76e3\u63a7Key\u7684\u8b8a\u5316\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8redis%e7%9a%84keyspace-notifications-RiUgHgaQxP\">1. \u4f7f\u7528Redis\u7684Keyspace Notifications<\/h3>\n<p>Redis\u7684Keyspace Notifications\u529f\u80fd\u5141\u8a31\u7528\u6236\u8a02\u95b1\u7279\u5b9aKey\u7684\u4e8b\u4ef6\u3002\u7576Key\u7684\u503c\u767c\u751f\u8b8a\u5316\u6642\uff0cRedis\u6703\u767c\u9001\u901a\u77e5\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u5be6\u73fe\uff1a<\/p>\n<pre><code>CONFIG SET notify-keyspace-events K$<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u555f\u7528Key\u7684\u904e\u671f\u4e8b\u4ef6\u901a\u77e5\u3002\u63a5\u4e0b\u4f86\uff0c\u7528\u6236\u53ef\u4ee5\u4f7f\u7528Pub\/Sub\u6a5f\u5236\u4f86\u63a5\u6536\u9019\u4e9b\u901a\u77e5\uff1a<\/p>\n<pre><code>SUBSCRIBE __keyevent@0__:set<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576Key\u88ab\u8a2d\u7f6e\u6642\uff0c\u8a02\u95b1\u8005\u5c07\u6536\u5230\u901a\u77e5\uff0c\u5f9e\u800c\u53ef\u4ee5\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8redis%e7%9a%84lua%e8%85%b3%e6%9c%ac-RiUgHgaQxP\">2. \u4f7f\u7528Redis\u7684Lua\u8173\u672c<\/h3>\n<p>Lua\u8173\u672c\u53ef\u4ee5\u5728Redis\u4e2d\u539f\u5b50\u6027\u5730\u57f7\u884c\u591a\u500b\u64cd\u4f5c\uff0c\u9019\u4f7f\u5f97\u5b83\u5011\u975e\u5e38\u9069\u5408\u7528\u65bc\u76e3\u63a7Key\u7684\u8b8a\u5316\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u8a72\u793a\u4f8b\u5728\u8a2d\u7f6eKey\u6642\u8a18\u9304\u8b8a\u5316\uff1a<\/p>\n<pre><code>local key = KEYS[1]\nlocal value = ARGV[1]\nredis.call('SET', key, value)\nredis.call('LPUSH', 'key_changes', key .. ' set to ' .. value)<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u5728\u8a2d\u7f6eKey\u7684\u540c\u6642\uff0c\u5c07\u8b8a\u5316\u8a18\u9304\u5230\u4e00\u500b\u5217\u8868\u4e2d\uff0c\u4fbf\u65bc\u5f8c\u7e8c\u5206\u6790\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%ae%a2%e6%88%b6%e7%ab%af%e5%ba%ab-RiUgHgaQxP\">3. \u4f7f\u7528Redis\u7684\u5ba2\u6236\u7aef\u5eab<\/h3>\n<p>\u8a31\u591aRedis\u5ba2\u6236\u7aef\u5eab\uff08\u5982Node.js\u7684ioredis\u3001Python\u7684redis-py\u7b49\uff09\u90fd\u63d0\u4f9b\u4e86\u76e3\u63a7Key\u8b8a\u5316\u7684\u529f\u80fd\u3002\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528\u9019\u4e9b\u5eab\u4f86\u5be6\u73fe\u81ea\u52d5\u76e3\u63a7\u3002\u4f8b\u5982\uff0c\u5728Node.js\u4e2d\uff0c\u53ef\u4ee5\u9019\u6a23\u5be6\u73fe\uff1a<\/p>\n<pre><code>const Redis = require('ioredis');\nconst redis = new Redis();\n\nredis.psubscribe('__keyevent@0__:set', (err, count) =&gt; {\n  \/\/ \u8a02\u95b1\u6210\u529f\n});\n\nredis.on('pmessage', (subscribed, channel, message) =&gt; {\n  console.log(`Key changed: ${message}`);\n});<\/code><\/pre>\n<h2 id=\"%e7%9b%a3%e6%8e%a7key%e8%ae%8a%e5%8c%96%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-RiUgHgaQxP\">\u76e3\u63a7Key\u8b8a\u5316\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u4e8b\u4ef6\u985e\u578b\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u9700\u8981\u76e3\u63a7\u7684\u4e8b\u4ef6\u985e\u578b\uff0c\u5982\u8a2d\u7f6e\u3001\u522a\u9664\u6216\u904e\u671f\u4e8b\u4ef6\u3002<\/li>\n<li><strong>\u5408\u7406\u8a2d\u7f6e\u901a\u77e5\u983b\u7387\uff1a<\/strong>\u907f\u514d\u904e\u65bc\u983b\u7e41\u7684\u901a\u77e5\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\uff0c\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/li>\n<li><strong>\u7d50\u5408\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5c07\u76e3\u63a7\u6578\u64da\u8207\u5176\u4ed6\u6027\u80fd\u6307\u6a19\u7d50\u5408\uff0c\u9032\u884c\u5168\u9762\u7684\u7cfb\u7d71\u6027\u80fd\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-RiUgHgaQxP\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528Redis\u76e3\u63a7Key\u8b8a\u5316\u662f\u4e00\u7a2e\u6709\u6548\u7684\u7cfb\u7d71\u6027\u80fd\u512a\u5316\u7b56\u7565\u3002\u901a\u904e\u5408\u7406\u914d\u7f6eKeyspace Notifications\u3001\u5229\u7528Lua\u8173\u672c\u548c\u5ba2\u6236\u7aef\u5eab\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u53ca\u6642\u7372\u53d6Key\u7684\u8b8a\u5316\u4fe1\u606f\uff0c\u5f9e\u800c\u9032\u884c\u76f8\u61c9\u7684\u512a\u5316\u548c\u8abf\u6574\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u9084\u80fd\u6e1b\u5c11\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u6700\u7d42\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u76e3\u63a7Key\u8b8a\u5316\uff0c\u5be6\u6642\u8ffd\u8e64\u6578\u64da\u8b8a\u52d5\uff0c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\uff0c\u63d0\u5347\u61c9\u7528\u6548\u7387\uff0c\u78ba\u4fdd\u7a69\u5b9a\u904b\u884c\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-184514","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184514","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=184514"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184514\/revisions"}],"predecessor-version":[{"id":184515,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184514\/revisions\/184515"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=184514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=184514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=184514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}