{"id":183564,"date":"2024-11-10T05:52:19","date_gmt":"2024-11-09T21:52:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183564\/"},"modified":"2024-11-10T05:52:20","modified_gmt":"2024-11-09T21:52:20","slug":"%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e9%8d%b5%e7%9a%84%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%ef%bc%88redis%e9%8d%b5%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%e7%ad%96%e7%95%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183564\/","title":{"rendered":"\u4f7f\u7528 Redis \u5be6\u73fe\u9375\u7684\u81ea\u52d5\u904e\u671f\u522a\u9664\uff08redis\u9375\u904e\u671f\u522a\u9664\u7b56\u7565\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e9%8d%b5%e7%9a%84%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%ef%bc%88redis%e9%8d%b5%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%e7%ad%96%e7%95%a5-RAwpKqJPXC\">\u4f7f\u7528 Redis \u5be6\u73fe\u9375\u7684\u81ea\u52d5\u904e\u671f\u522a\u9664\uff08redis\u9375\u904e\u671f\u522a\u9664\u7b56\u7565\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u7ba1\u7406\u6578\u64da\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u9375\u7684\u81ea\u52d5\u904e\u671f\u522a\u9664\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u7684\u9375\u904e\u671f\u522a\u9664\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u5229\u7528\u9019\u4e00\u7279\u6027\u3002<\/p>\n<h2 id=\"redis-%e9%8d%b5%e9%81%8e%e6%9c%9f%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-RAwpKqJPXC\">Redis \u9375\u904e\u671f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u5141\u8a31\u7528\u6236\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u9019\u610f\u5473\u8457\u5728\u6307\u5b9a\u7684\u6642\u9593\u5f8c\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u529f\u80fd\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u6703\u8a71\u7ba1\u7406\u3001\u7de9\u5b58\u7cfb\u7d71\u7b49\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e9%8d%b5%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-RAwpKqJPXC\">\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u500b\u547d\u4ee4\u63a5\u53d7\u5169\u500b\u53c3\u6578\uff1a\u9375\u540d\u548c\u904e\u671f\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c07\u9375 <code>mykey<\/code> \u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u70ba 60 \u79d2\uff1a<\/p>\n<pre><code>EXPIRE mykey 60<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528 <code>SETEX<\/code> \u547d\u4ee4\u4f86\u540c\u6642\u8a2d\u7f6e\u9375\u7684\u503c\u548c\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SETEX mykey 60 \"some value\"<\/code><\/pre>\n<h2 id=\"%e9%8d%b5%e7%9a%84%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%e7%ad%96%e7%95%a5-RAwpKqJPXC\">\u9375\u7684\u904e\u671f\u522a\u9664\u7b56\u7565<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u522a\u9664\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u522a\u9664\uff08Passive Expiration\uff09<\/strong>\uff1a\u7576\u7528\u6236\u8a2a\u554f\u4e00\u500b\u9375\u6642\uff0cRedis \u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\u3002\u5982\u679c\u904e\u671f\uff0c\u5247\u522a\u9664\u8a72\u9375\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u512a\u9ede\u662f\u7c21\u55ae\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u4e3b\u52d5\u522a\u9664\uff08Active Expiration\uff09<\/strong>\uff1aRedis \u6703\u5b9a\u671f\u96a8\u6a5f\u6aa2\u67e5\u4e00\u90e8\u5206\u9375\uff0c\u4e26\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u904e\u671f\u9375\u7684\u6578\u91cf\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002Redis \u7684\u9ed8\u8a8d\u914d\u7f6e\u662f\u6bcf 100 \u6beb\u79d2\u6aa2\u67e5 20 \u500b\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e9%8d%b5%e7%9a%84%e5%89%a9%e9%a4%98%e7%94%9f%e5%ad%98%e6%99%82%e9%96%93-RAwpKqJPXC\">\u5982\u4f55\u67e5\u770b\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593<\/h2>\n<p>\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 <code>TTL<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u67d0\u500b\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\u3002\u9019\u500b\u547d\u4ee4\u8fd4\u56de\u9375\u7684\u5269\u9918\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\uff0c\u5982\u679c\u9375\u4e0d\u5b58\u5728\u6216\u6c92\u6709\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5247\u8fd4\u56de -1\uff1a<\/p>\n<pre><code>TTL mykey<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-RAwpKqJPXC\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0cRedis \u7684\u904e\u671f\u522a\u9664\u7b56\u7565\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u5834\u666f\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 Redis \u5b58\u5132\u7528\u6236\u7684\u8cfc\u7269\u8eca\u4fe1\u606f\uff0c\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u4ee5\u4fbf\u5728\u7528\u6236\u9577\u6642\u9593\u672a\u8a2a\u554f\u6642\u81ea\u52d5\u6e05\u7406\u8cfc\u7269\u8eca\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 Redis \u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst client = redis.createClient();\n\nclient.setex('cart:123', 3600, JSON.stringify(cartItems), (err, reply) =&gt; {\n    if (err) {\n        console.error('Error setting cart:', err);\n    } else {\n        console.log('Cart set with expiration:', reply);\n    }\n});\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RAwpKqJPXC\">\u7e3d\u7d50<\/h2>\n<p>Redis \u7684\u9375\u904e\u671f\u522a\u9664\u7b56\u7565\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u65b9\u5f0f\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u548c\u9078\u64c7\u5408\u9069\u7684\u522a\u9664\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u5167\u5b58\u4f7f\u7528\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\u3002\u7121\u8ad6\u662f\u5728\u6703\u8a71\u7ba1\u7406\u9084\u662f\u7de9\u5b58\u7cfb\u7d71\u4e2d\uff0c\u5408\u7406\u5229\u7528 Redis \u7684\u904e\u671f\u529f\u80fd\u90fd\u80fd\u5e36\u4f86\u986f\u8457\u7684\u6548\u76ca\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u548c\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u9375\u7684\u81ea\u52d5\u904e\u671f\u522a\u9664\uff0c\u4e86\u89e3\u6709\u6548\u7684\u9375\u904e\u671f\u522a\u9664\u7b56\u7565\u4ee5\u512a\u5316\u6578\u64da\u7ba1\u7406\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-183564","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183564","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=183564"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183564\/revisions"}],"predecessor-version":[{"id":183565,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183564\/revisions\/183565"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}