{"id":189174,"date":"2024-11-12T05:18:20","date_gmt":"2024-11-11T21:18:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189174\/"},"modified":"2024-11-12T05:18:22","modified_gmt":"2024-11-11T21:18:22","slug":"%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd%ef%bc%8c%e5%80%9f%e5%8a%a9redis%e5%bf%ab%e5%8f%96%e6%b1%a0%ef%bc%8c%e5%bb%b6%e9%95%b7%e6%99%82%e9%96%93%ef%bc%88redis%e5%bf%ab%e5%8f%96%e6%b1%a0%e5%ad%98%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189174\/","title":{"rendered":"\u63d0\u5347\u6027\u80fd\uff0c\u501f\u52a9Redis\u5feb\u53d6\u6c60\uff0c\u5ef6\u9577\u6642\u9593\uff08redis\u5feb\u53d6\u6c60\u5b58\u5728\u6642\u9593\uff09"},"content":{"rendered":"<h1 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Live\uff09\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002TTL\u6c7a\u5b9a\u4e86\u6578\u64da\u5728\u5feb\u53d6\u4e2d\u5b58\u6d3b\u7684\u6642\u9593\uff0c\u904e\u671f\u5f8c\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u5408\u7406\u7684TTL\u8a2d\u5b9a\u53ef\u4ee5\u6709\u6548\u5730\u5e73\u8861\u6578\u64da\u7684\u65b0\u9bae\u5ea6\u548c\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8a2d\u5b9aTTL\u7684\u8003\u91cf\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u66f4\u65b0\u983b\u7387\uff1a<\/strong>\u5982\u679c\u6578\u64da\u7d93\u5e38\u8b8a\u66f4\uff0c\u5247\u61c9\u8a72\u8a2d\u5b9a\u8f03\u77ed\u7684TTL\uff0c\u4ee5\u78ba\u4fdd\u7528\u6236\u7372\u53d6\u5230\u6700\u65b0\u7684\u4fe1\u606f\u3002<\/li>\n<li><strong>\u6578\u64da\u8a2a\u554f\u983b\u7387\uff1a<\/strong>\u5c0d\u65bc\u8a2a\u554f\u983b\u7387\u8f03\u9ad8\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u8a2d\u5b9a\u8f03\u9577\u7684TTL\uff0c\u4ee5\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u8cc7\u6e90\uff1a<\/strong>\u5982\u679c\u7cfb\u7d71\u8cc7\u6e90\u6709\u9650\uff0c\u5247\u61c9\u8a72\u5b9a\u671f\u6e05\u7406\u904e\u671f\u7684\u5feb\u53d6\u6578\u64da\uff0c\u4ee5\u91cb\u653e\u5167\u5b58\u3002<\/li>\n<\/ul>\n<h3 id=\"redis%e5%bf%ab%e5%8f%96%e6%b1%a0%e7%9a%84%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-OJnfTGuFFg\">Redis\u5feb\u53d6\u6c60\u7684\u5be6\u73fe\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Node.js\u4e2d\u4f7f\u7528Redis\u5feb\u53d6\u6c60\uff1a<\/p>\n<pre><code>\nconst redis = require('redis');\nconst client = redis.createClient();\n\nclient.on('error', (err) =&gt; {\n    console.log('Redis error: ' + err);\n});\n\n\/\/ \u8a2d\u5b9a\u5feb\u53d6\nfunction setCache(key, value, ttl) {\n    client.setex(key, ttl, JSON.stringify(value));\n}\n\n\/\/ \u7372\u53d6\u5feb\u53d6\nfunction getCache(key, callback) {\n    client.get(key, (err, data) =&gt; {\n        if (err) throw err;\n        if (data) {\n            callback(null, JSON.parse(data));\n        } else {\n            callback(null, null);\n        }\n    });\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\nconst key = 'user:1000';\nconst ttl = 3600; \/\/ 1\u5c0f\u6642\n\ngetCache(key, (err, data) =&gt; {\n    if (data) {\n        console.log('\u5f9e\u5feb\u53d6\u4e2d\u7372\u53d6\u6578\u64da:', data);\n    } else {\n        \/\/ \u5047\u8a2d\u5f9e\u6578\u64da\u5eab\u7372\u53d6\u6578\u64da\n        const userData = { id: 1000, name: 'John Doe' };\n        setCache(key, userData, ttl);\n        console.log('\u5f9e\u6578\u64da\u5eab\u7372\u53d6\u6578\u64da\u4e26\u5b58\u5165\u5feb\u53d6:', userData);\n    }\n});\n<\/code><\/pre>\n<h2 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