{"id":117234,"date":"2024-10-24T20:24:04","date_gmt":"2024-10-24T12:24:04","guid":{"rendered":"https:\/\/server.hk\/cnblog\/117234\/"},"modified":"2024-10-24T20:24:05","modified_gmt":"2024-10-24T12:24:05","slug":"redis-%e5%bf%ab%e5%8f%96%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e6%9b%b4%e6%96%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/117234\/","title":{"rendered":"Redis \u5feb\u53d6\u5982\u4f55\u5be6\u73fe\u6709\u6548\u66f4\u65b0"},"content":{"rendered":"<h1 id=\"redis-%e5%bf%ab%e5%8f%96%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e6%9b%b4%e6%96%b0-KLZLSPALbN\">Redis \u5feb\u53d6\u5982\u4f55\u5be6\u73fe\u6709\u6548\u66f4\u65b0<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u61c9\u7528\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u8a18\u61b6\u9ad4\u8cc7\u6599\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5feb\u53d6\u7cfb\u7d71\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u6709\u6548\u7684\u5feb\u53d6\u66f4\u65b0\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7b56\u7565\u548c\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"redis-%e5%bf%ab%e5%8f%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-KLZLSPALbN\">Redis \u5feb\u53d6\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u8cc7\u6599\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u8cc7\u6599\u7d50\u69cb\uff0c\u5982\u5b57\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u5728\u8a18\u61b6\u9ad4\u4e2d\u64cd\u4f5c\u8cc7\u6599\uff0cRedis 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id=\"%e8%b3%87%e6%96%99%e4%b8%80%e8%87%b4%e6%80%a7-KLZLSPALbN\">\u8cc7\u6599\u4e00\u81f4\u6027<\/h3>\n<p>\u8cc7\u6599\u4e00\u81f4\u6027\u662f\u6307\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u5fc5\u9808\u8207\u5f8c\u7aef\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\u4fdd\u6301\u4e00\u81f4\u3002\u82e5\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u904e\u671f\u6216\u672a\u53ca\u6642\u66f4\u65b0\uff0c\u5c07\u5c0e\u81f4\u7528\u6236\u7372\u53d6\u5230\u904e\u6642\u7684\u8cc7\u8a0a\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u52d5\u66f4\u65b0\uff1a<\/strong>\u7576\u5f8c\u7aef\u8cc7\u6599\u767c\u751f\u8b8a\u66f4\u6642\uff0c\u4e3b\u52d5\u66f4\u65b0 Redis \u4e2d\u7684\u5feb\u53d6\u8cc7\u6599\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u66f4\u65b0\u5176\u500b\u4eba\u8cc7\u6599\u6642\uff0c\u53ef\u4ee5\u7acb\u5373\u5c07\u65b0\u8cc7\u6599\u5beb\u5165 Redis\u3002<\/li>\n<li><strong>\u88ab\u52d5\u66f4\u65b0\uff1a<\/strong>\u5728\u8b80\u53d6\u5feb\u53d6\u8cc7\u6599\u6642\uff0c\u6aa2\u67e5\u8cc7\u6599\u7684\u6709\u6548\u6027\u3002\u5982\u679c\u8cc7\u6599\u904e\u671f\uff0c\u5247\u5f9e\u5f8c\u7aef\u8cc7\u6599\u5eab\u91cd\u65b0\u52a0\u8f09\u4e26\u66f4\u65b0\u5feb\u53d6\u3002<\/li>\n<li><strong>\u5b9a\u671f\u66f4\u65b0\uff1a<\/strong>\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\uff0c\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u5feb\u53d6\u8cc7\u6599\uff0c\u78ba\u4fdd\u8cc7\u6599\u7684\u6642\u6548\u6027\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%bf%ab%e5%8f%96%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5-KLZLSPALbN\">\u5feb\u53d6\u5931\u6548\u7b56\u7565<\/h3>\n<p>\u5feb\u53d6\u5931\u6548\u662f\u6307\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u56e0\u70ba\u904e\u671f\u6216\u5176\u4ed6\u539f\u56e0\u800c\u7121\u6cd5\u4f7f\u7528\u3002\u70ba\u4e86\u6709\u6548\u7ba1\u7406\u5feb\u53d6\u5931\u6548\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/strong>\u5728\u5c07\u8cc7\u6599\u5beb\u5165 Redis \u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\uff0c\u8b93\u8cc7\u6599\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u5931\u6548\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5feb\u53d6\u4e2d\u5b58\u5728\u904e\u6642\u7684\u8cc7\u6599\u3002<\/li>\n<li><strong>\u4f7f\u7528 LRU \u7b97\u6cd5\uff1a<\/strong>Redis \u652f\u6301 LRU\uff08Least Recently Used\uff09\u7b97\u6cd5\uff0c\u7576\u5feb\u53d6\u7a7a\u9593\u4e0d\u8db3\u6642\uff0c\u81ea\u52d5\u522a\u9664\u6700\u5c11\u4f7f\u7528\u7684\u8cc7\u6599\uff0c\u4fdd\u6301\u5feb\u53d6\u7684\u6709\u6548\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e4%bd%9c%e7%af%84%e4%be%8b-KLZLSPALbN\">\u5be6\u4f5c\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 Redis \u9032\u884c\u5feb\u53d6\u66f4\u65b0\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst client = redis.createClient();\n\nfunction getUserData(userId) {\n    \/\/ \u5617\u8a66\u5f9e\u5feb\u53d6\u4e2d\u7372\u53d6\u8cc7\u6599\n    client.get(`user:${userId}`, (err, data) =&gt; {\n        if (data) {\n            console.log('\u5f9e\u5feb\u53d6\u4e2d\u7372\u53d6\u8cc7\u6599:', data);\n        } else {\n            \/\/ \u82e5\u5feb\u53d6\u4e2d\u7121\u8cc7\u6599\uff0c\u5247\u5f9e\u8cc7\u6599\u5eab\u4e2d\u7372\u53d6\n            const userData = fetchFromDatabase(userId); \/\/ \u5047\u8a2d\u9019\u662f\u4e00\u500b\u5f9e\u8cc7\u6599\u5eab\u7372\u53d6\u8cc7\u6599\u7684\u51fd\u6578\n            client.setex(`user:${userId}`, 3600, JSON.stringify(userData)); \/\/ \u8a2d\u7f6e\u5feb\u53d6\uff0c\u904e\u671f\u6642\u9593\u70ba3600\u79d2\n            console.log('\u5f9e\u8cc7\u6599\u5eab\u7372\u53d6\u8cc7\u6599:', userData);\n        }\n    });\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-KLZLSPALbN\">\u7d50\u8ad6<\/h2>\n<p>Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u986f\u8457\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u3002\u7136\u800c\uff0c\u70ba\u4e86\u5be6\u73fe\u6709\u6548\u7684\u5feb\u53d6\u66f4\u65b0\uff0c\u958b\u767c\u8005\u9700\u8981\u8003\u616e\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5feb\u53d6\u5931\u6548\u7b49\u6311\u6230\u3002\u901a\u904e\u4e3b\u52d5\u66f4\u65b0\u3001\u88ab\u52d5\u66f4\u65b0\u548c\u5b9a\u671f\u66f4\u65b0\u7b49\u7b56\u7565\uff0c\u53ef\u4ee5\u78ba\u4fdd\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u59cb\u7d42\u4fdd\u6301\u6700\u65b0\u72c0\u614b\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0cRedis \u7684\u61c9\u7528\u5834\u666f\u5c07\u6703\u66f4\u52a0\u5ee3\u6cdb\uff0c\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u5feb\u53d6\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u5feb\u53d6\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u5feb\u53d6\u4e2d\u5be6\u73fe\u6709\u6548\u66f4\u65b0\uff0c\u63d0\u5347\u6578\u64da\u4e00\u81f4\u6027\u8207\u6027\u80fd\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u9ad8\u6548\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-117234","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117234","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=117234"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117234\/revisions"}],"predecessor-version":[{"id":117235,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117234\/revisions\/117235"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=117234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=117234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=117234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}