{"id":166745,"date":"2024-11-05T19:07:23","date_gmt":"2024-11-05T11:07:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166745\/"},"modified":"2024-11-05T19:07:24","modified_gmt":"2024-11-05T11:07:24","slug":"%e6%93%b4%e5%b1%95%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%a0%85%e7%9b%ae%e6%b5%b7%e9%87%8f%e6%93%b4%e5%b1%95%ef%bc%88%e5%a6%82%e4%bd%95%e6%8a%8a%e9%a0%85%e7%9b%ae%e6%b5%b7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166745\/","title":{"rendered":"\u64f4\u5c55\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9805\u76ee\u6d77\u91cf\u64f4\u5c55\uff08\u5982\u4f55\u628a\u9805\u76ee\u6d77\u7528redis\uff09"},"content":{"rendered":"<h1 id=\"%e6%93%b4%e5%b1%95%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%a0%85%e7%9b%ae%e6%b5%b7%e9%87%8f%e6%93%b4%e5%b1%95-fZtjmLTCAa\">\u64f4\u5c55\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9805\u76ee\u6d77\u91cf\u64f4\u5c55<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\u548c\u6578\u64da\u91cf\u7684\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u5730\u64f4\u5c55\u61c9\u7528\u7a0b\u5e8f\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u4e86\u8a31\u591a\u4f01\u696d\u5728\u5be6\u73fe\u9805\u76ee\u6d77\u91cf\u64f4\u5c55\u6642\u7684\u9996\u9078\u5de5\u5177\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u5be6\u73fe\u9805\u76ee\u7684\u64f4\u5c55\u6027\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%89%b9%e6%80%a7-fZtjmLTCAa\">Redis\u7684\u57fa\u672c\u7279\u6027<\/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\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002\u5176\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u80fd\u5920\u6bcf\u79d2\u8655\u7406\u6578\u5341\u842c\u6b21\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u9700\u8981\u9ad8\u541e\u5410\u91cf\u7684\u61c9\u7528\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\uff1a<\/strong>Redis\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u9019\u6a23\u5373\u4f7f\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u4e5f\u80fd\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u652f\u6301\uff1a<\/strong>Redis Cluster\u5141\u8a31\u7528\u6236\u5c07\u6578\u64da\u5206\u4f48\u5230\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u5f9e\u800c\u5be6\u73fe\u6c34\u5e73\u64f4\u5c55\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%a0%85%e7%9b%ae%e6%93%b4%e5%b1%95-fZtjmLTCAa\">\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9805\u76ee\u64f4\u5c55<\/h2>\n<h3 id=\"1-%e7%b7%a9%e5%ad%98%e6%a9%9f%e5%88%b6-fZtjmLTCAa\">1. \u7de9\u5b58\u6a5f\u5236<\/h3>\n<p>\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u8b80\u53d6\u58d3\u529b\u5f80\u5f80\u6703\u6210\u70ba\u74f6\u9838\u3002\u4f7f\u7528Redis\u4f5c\u70ba\u7de9\u5b58\u5c64\uff0c\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7de9\u5b58\u793a\u4f8b\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst client = redis.createClient();\n\nfunction getUserData(userId) {\n    client.get(userId, (err, result) =&gt; {\n        if (result) {\n            \/\/ \u5982\u679c\u7de9\u5b58\u4e2d\u6709\u6578\u64da\uff0c\u76f4\u63a5\u8fd4\u56de\n            return JSON.parse(result);\n        } else {\n            \/\/ \u5426\u5247\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\n            const userData = queryDatabase(userId);\n            \/\/ \u5c07\u6578\u64da\u5b58\u5165\u7de9\u5b58\n            client.setex(userId, 3600, JSON.stringify(userData));\n            return userData;\n        }\n    });\n}<\/code><\/pre>\n<h3 id=\"2-%e5%af%a6%e6%99%82%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86-fZtjmLTCAa\">2. \u5be6\u6642\u6578\u64da\u8655\u7406<\/h3>\n<p>Redis\u7684\u767c\u5e03\/\u8a02\u95b1\u529f\u80fd\u4f7f\u5f97\u5be6\u6642\u6578\u64da\u8655\u7406\u8b8a\u5f97\u7c21\u55ae\u3002\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528\u9019\u4e00\u7279\u6027\u4f86\u5be6\u73fe\u5373\u6642\u6d88\u606f\u63a8\u9001\u6216\u6578\u64da\u66f4\u65b0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst subscriber = redis.createClient();\nconst publisher = redis.createClient();\n\nsubscriber.on('message', (channel, message) =&gt; {\n    console.log(`Received message: ${message}`);\n});\n\nsubscriber.subscribe('updates');\n\n\/\/ \u767c\u5e03\u6d88\u606f\npublisher.publish('updates', 'New data available!');<\/code><\/pre>\n<h3 id=\"3-%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96-fZtjmLTCAa\">3. \u5206\u4f48\u5f0f\u9396<\/h3>\n<p>\u5728\u591a\u5be6\u4f8b\u74b0\u5883\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u81f3\u95dc\u91cd\u8981\u3002Redis\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\uff0c\u9632\u6b62\u591a\u500b\u5be6\u4f8b\u540c\u6642\u4fee\u6539\u540c\u4e00\u8cc7\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5206\u4f48\u5f0f\u9396\u5be6\u73fe\uff1a<\/p>\n<pre><code>function acquireLock(lockKey, callback) {\n    const lockValue = Date.now() + 10000; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\n    client.set(lockKey, lockValue, 'NX', 'PX', 10000, (err, result) =&gt; {\n        if (result) {\n            callback(); \/\/ \u7372\u53d6\u9396\u6210\u529f\n        } else {\n            \/\/ \u9396\u5df2\u5b58\u5728\uff0c\u7a0d\u5f8c\u91cd\u8a66\n            setTimeout(() =&gt; acquireLock(lockKey, callback), 100);\n        }\n    });\n}<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-fZtjmLTCAa\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u70ba\u9805\u76ee\u7684\u6d77\u91cf\u64f4\u5c55\u63d0\u4f9b\u4e86\u591a\u7a2e\u89e3\u6c7a\u65b9\u6848\u3002\u7121\u8ad6\u662f\u4f5c\u70ba\u7de9\u5b58\u5c64\u3001\u5be6\u6642\u6578\u64da\u8655\u7406\u9084\u662f\u5206\u4f48\u5f0f\u9396\uff0cRedis\u90fd\u80fd\u6709\u6548\u5730\u63d0\u5347\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u9078\u64c7\u5c07Redis\u7d0d\u5165\u5176\u6280\u8853\u68e7\u4e2d\uff0c\u4ee5\u61c9\u5c0d\u4e0d\u65b7\u589e\u9577\u7684\u7528\u6236\u9700\u6c42\u548c\u6578\u64da\u6311\u6230\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684Redis\u61c9\u7528\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9748\u6d3b\u7684\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u5be6\u73fe\u9805\u76ee\u7684\u64f4\u5c55\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9805\u76ee\u6d77\u91cf\u64f4\u5c55\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u8b93\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u8f15\u9b06\u61c9\u5c0d\u9ad8\u6d41\u91cf\u9700\u6c42\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-166745","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166745","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=166745"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166745\/revisions"}],"predecessor-version":[{"id":166746,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166745\/revisions\/166746"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=166745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=166745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=166745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}