{"id":128291,"date":"2024-10-26T13:04:14","date_gmt":"2024-10-26T05:04:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128291\/"},"modified":"2024-10-26T13:04:15","modified_gmt":"2024-10-26T05:04:15","slug":"redis-%e5%af%a6%e7%8f%be%e8%b6%85%e6%99%82%e8%a8%82%e5%96%ae%e8%87%aa%e5%8b%95%e9%97%9c%e9%96%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128291\/","title":{"rendered":"Redis \u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u81ea\u52d5\u95dc\u9589"},"content":{"rendered":"<h1 id=\"redis-%e5%af%a6%e7%8f%be%e8%b6%85%e6%99%82%e8%a8%82%e5%96%ae%e8%87%aa%e5%8b%95%e9%97%9c%e9%96%89-tAymCrhrlr\">Redis \u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u81ea\u52d5\u95dc\u9589<\/h1>\n<p>\u5728\u73fe\u4ee3\u96fb\u5b50\u5546\u52d9\u4e2d\uff0c\u8a02\u55ae\u7ba1\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u74b0\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u8d85\u6642\u8a02\u55ae\u6210\u70ba\u4e86\u5546\u5bb6\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\u529f\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u7684\u81ea\u52d5\u95dc\u9589\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528 Redis \u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%b6%85%e6%99%82%e8%a8%82%e5%96%ae%ef%bc%9f-tAymCrhrlr\">\u4ec0\u9ebc\u662f\u8d85\u6642\u8a02\u55ae\uff1f<\/h2>\n<p>\u8d85\u6642\u8a02\u55ae\u662f\u6307\u5728\u4e00\u5b9a\u6642\u9593\u5167\u672a\u5b8c\u6210\u652f\u4ed8\u6216\u672a\u88ab\u8655\u7406\u7684\u8a02\u55ae\u3002\u9019\u985e\u8a02\u55ae\u5982\u679c\u4e0d\u53ca\u6642\u95dc\u9589\uff0c\u53ef\u80fd\u6703\u5f71\u97ff\u5546\u5bb6\u7684\u5eab\u5b58\u7ba1\u7406\u548c\u7528\u6236\u9ad4\u9a57\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u95dc\u9589\u8d85\u6642\u8a02\u55ae\u662f\u63d0\u5347\u696d\u52d9\u6548\u7387\u7684\u91cd\u8981\u63aa\u65bd\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e7%89%b9%e6%80%a7-tAymCrhrlr\">Redis \u7684\u7279\u6027<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\uff1a<\/strong>Redis \u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>\u652f\u6301 RDB \u548c AOF \u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u4fdd\u8b49\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u904e\u671f\u9375\u529f\u80fd\uff1a<\/strong>\u53ef\u4ee5\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u81ea\u52d5\u522a\u9664\u904e\u671f\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e8%b6%85%e6%99%82%e8%a8%82%e5%96%ae%e8%87%aa%e5%8b%95%e9%97%9c%e9%96%89%e7%9a%84%e6%ad%a5%e9%a9%9f-tAymCrhrlr\">\u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u81ea\u52d5\u95dc\u9589\u7684\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5229\u7528 Redis \u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u81ea\u52d5\u95dc\u9589\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e8%a8%82%e5%96%ae%e6%95%b8%e6%93%9a-tAymCrhrlr\">1. \u8a2d\u7f6e\u8a02\u55ae\u6578\u64da<\/h3>\n<p>\u5728\u7528\u6236\u4e0b\u55ae\u6642\uff0c\u5c07\u8a02\u55ae\u4fe1\u606f\u5b58\u5132\u5230 Redis \u4e2d\uff0c\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SET order:12345 \"order details\" EX 3600<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u78bc\u5c07\u8a02\u55ae ID \u70ba 12345 \u7684\u8a02\u55ae\u4fe1\u606f\u5b58\u5132\u5728 Redis \u4e2d\uff0c\u4e26\u8a2d\u7f6e\u5176\u5728 3600 \u79d2\u5f8c\u904e\u671f\u3002<\/p>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e6%aa%a2%e6%9f%a5%e8%b6%85%e6%99%82%e8%a8%82%e5%96%ae-tAymCrhrlr\">2. \u5b9a\u671f\u6aa2\u67e5\u8d85\u6642\u8a02\u55ae<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5b9a\u6642\u4efb\u52d9\u4f86\u5b9a\u671f\u6aa2\u67e5\u8d85\u6642\u8a02\u55ae\u3002\u9019\u53ef\u4ee5\u901a\u904e Redis \u7684\u904e\u671f\u9375\u529f\u80fd\u4f86\u5be6\u73fe\u3002\u7576\u4e00\u500b\u9375\u904e\u671f\u6642\uff0cRedis \u6703\u81ea\u52d5\u522a\u9664\u8a72\u9375\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u522a\u9664\u6642\u89f8\u767c\u76f8\u61c9\u7684\u696d\u52d9\u908f\u8f2f\uff0c\u4f8b\u5982\u95dc\u9589\u8a02\u55ae\u3002<\/p>\n<pre><code>if (GET order:12345 == nil) {\n    \/\/ \u8d85\u6642\uff0c\u57f7\u884c\u95dc\u9589\u8a02\u55ae\u7684\u908f\u8f2f\n    closeOrder(12345);\n}<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-pub-sub-%e6%a9%9f%e5%88%b6-tAymCrhrlr\">3. \u4f7f\u7528 Pub\/Sub \u6a5f\u5236<\/h3>\n<p>Redis \u7684 Pub\/Sub \u6a5f\u5236\u53ef\u4ee5\u7528\u4f86\u5be6\u6642\u901a\u77e5\u7cfb\u7d71\u4e2d\u5176\u4ed6\u90e8\u5206\u95dc\u65bc\u8d85\u6642\u8a02\u55ae\u7684\u4e8b\u4ef6\u3002\u7576\u8a02\u55ae\u8d85\u6642\u4e26\u88ab\u95dc\u9589\u6642\uff0c\u53ef\u4ee5\u767c\u9001\u4e00\u500b\u6d88\u606f\uff0c\u8b93\u5176\u4ed6\u670d\u52d9\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<pre><code>PUBLISH order:timeout \"Order 12345 has been closed.\"<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-tAymCrhrlr\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u4f86\u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u7684\u81ea\u52d5\u95dc\u9589\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst client = redis.createClient();\n\nfunction createOrder(orderId) {\n    client.set(`order:${orderId}`, \"order details\", 'EX', 3600);\n}\n\nfunction checkExpiredOrders() {\n    client.keys('order:*', (err, keys) =&gt; {\n        keys.forEach(key =&gt; {\n            client.get(key, (err, value) =&gt; {\n                if (value === null) {\n                    \/\/ \u8d85\u6642\uff0c\u57f7\u884c\u95dc\u9589\u8a02\u55ae\u7684\u908f\u8f2f\n                    const orderId = key.split(':')[1];\n                    closeOrder(orderId);\n                }\n            });\n        });\n    });\n}\n\nfunction closeOrder(orderId) {\n    console.log(`Order ${orderId} has been closed.`);\n}\n\n\/\/ \u5275\u5efa\u4e00\u500b\u8a02\u55ae\ncreateOrder(12345);\n\n\/\/ \u5b9a\u671f\u6aa2\u67e5\u8d85\u6642\u8a02\u55ae\nsetInterval(checkExpiredOrders, 60000); \/\/ \u6bcf\u5206\u9418\u6aa2\u67e5\u4e00\u6b21\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tAymCrhrlr\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528 Redis \u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u7684\u81ea\u52d5\u95dc\u9589\uff0c\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u6548\u7387\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u9375\u3001\u5b9a\u671f\u6aa2\u67e5\u548c\u4f7f\u7528 Pub\/Sub \u6a5f\u5236\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u8a02\u55ae\u72c0\u614b\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u696d\u52d9\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528 Redis \u5be6\u73fe\u8d85\u6642\u8a02\u55ae\u81ea\u52d5\u95dc\u9589\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u7387\uff0c\u6e1b\u5c11\u8cc7\u6e90\u6d6a\u8cbb\uff0c\u78ba\u4fdd\u696d\u52d9\u904b\u884c\u6d41\u66a2\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-128291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128291","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=128291"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128291\/revisions"}],"predecessor-version":[{"id":128292,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128291\/revisions\/128292"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}