{"id":127226,"date":"2024-10-26T09:18:18","date_gmt":"2024-10-26T01:18:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/127226\/"},"modified":"2024-10-26T09:18:19","modified_gmt":"2024-10-26T01:18:19","slug":"redis-%e7%86%b1%e9%bb%9e-key-%e7%9a%84%e7%99%bc%e7%8f%be%e8%88%87%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/127226\/","title":{"rendered":"Redis \u71b1\u9ede Key \u7684\u767c\u73fe\u8207\u61c9\u7528"},"content":{"rendered":"<h1 id=\"redis-%e7%86%b1%e9%bb%9e-key-%e7%9a%84%e7%99%bc%e7%8f%be%e8%88%87%e6%87%89%e7%94%a8-EdDKxGhVXB\">Redis \u71b1\u9ede Key \u7684\u767c\u73fe\u8207\u61c9\u7528<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u71b1\u9ede Key \u6642\uff0cRedis \u7684\u6027\u80fd\u512a\u52e2\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u71b1\u9ede Key \u7684\u767c\u73fe\u8207\u61c9\u7528\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u5229\u7528\u9019\u4e00\u6280\u8853\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%86%b1%e9%bb%9e-key%ef%bc%9f-EdDKxGhVXB\">\u4ec0\u9ebc\u662f\u71b1\u9ede Key\uff1f<\/h2>\n<p>\u71b1\u9ede Key \u662f\u6307\u5728\u4e00\u6bb5\u6642\u9593\u5167\u88ab\u983b\u7e41\u8a2a\u554f\u7684\u9375\u3002\u9019\u4e9b\u9375\u7684\u8a2a\u554f\u91cf\u9060\u9ad8\u65bc\u5176\u4ed6\u9375\uff0c\u5c0e\u81f4\u7cfb\u7d71\u8cc7\u6e90\u7684\u96c6\u4e2d\u4f7f\u7528\uff0c\u53ef\u80fd\u5f15\u767c\u6027\u80fd\u74f6\u9838\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\u4e2d\uff0c\u67d0\u4e00\u71b1\u9580\u5546\u54c1\u7684\u5eab\u5b58\u4fe1\u606f\u53ef\u80fd\u6210\u70ba\u71b1\u9ede Key\uff0c\u56e0\u70ba\u5927\u91cf\u7528\u6236\u540c\u6642\u67e5\u8a62\u8a72\u5546\u54c1\u7684\u72c0\u614b\u3002<\/p>\n<h2 id=\"%e7%86%b1%e9%bb%9e-key-%e7%9a%84%e7%99%bc%e7%8f%be-EdDKxGhVXB\">\u71b1\u9ede Key \u7684\u767c\u73fe<\/h2>\n<p>\u767c\u73fe\u71b1\u9ede Key \u7684\u65b9\u6cd5\u6709\u591a\u7a2e\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u6280\u8853\uff1a<\/p>\n<ul>\n<li><strong>\u76e3\u63a7\u5de5\u5177\uff1a<\/strong>\u4f7f\u7528 Redis \u63d0\u4f9b\u7684\u76e3\u63a7\u5de5\u5177\uff0c\u5982 <code>MONITOR<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u5be6\u6642\u67e5\u770b\u6240\u6709\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u8b58\u5225\u51fa\u8a2a\u554f\u983b\u7387\u8f03\u9ad8\u7684\u9375\u3002<\/li>\n<li><strong>\u65e5\u8a8c\u5206\u6790\uff1a<\/strong>\u901a\u904e\u5206\u6790\u61c9\u7528\u7a0b\u5e8f\u7684\u65e5\u8a8c\uff0c\u7d71\u8a08\u5404\u500b\u9375\u7684\u8a2a\u554f\u6b21\u6578\uff0c\u627e\u51fa\u71b1\u9ede Key\u3002<\/li>\n<li><strong>\u6027\u80fd\u6307\u6a19\uff1a<\/strong>\u5229\u7528 Redis \u7684 <code>INFO<\/code> \u547d\u4ee4\uff0c\u67e5\u770b\u5404\u500b\u9375\u7684\u547d\u4e2d\u7387\u548c\u8a2a\u554f\u6b21\u6578\uff0c\u9032\u4e00\u6b65\u78ba\u5b9a\u71b1\u9ede Key\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%86%b1%e9%bb%9e-key-%e7%9a%84%e6%87%89%e7%94%a8-EdDKxGhVXB\">\u71b1\u9ede Key \u7684\u61c9\u7528<\/h2>\n<p>\u4e00\u65e6\u8b58\u5225\u51fa\u71b1\u9ede Key\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u591a\u7a2e\u7b56\u7565\u4f86\u512a\u5316\u7cfb\u7d71\u6027\u80fd\uff1a<\/p>\n<h3 id=\"1-%e7%b7%a9%e5%ad%98%e7%ad%96%e7%95%a5-EdDKxGhVXB\">1. \u7de9\u5b58\u7b56\u7565<\/h3>\n<p>\u5c0d\u65bc\u71b1\u9ede Key\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u7de9\u5b58\u7b56\u7565\u4f86\u6e1b\u5c11\u5c0d Redis \u7684\u76f4\u63a5\u8a2a\u554f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c07\u71b1\u9ede Key \u7684\u6578\u64da\u7de9\u5b58\u5728\u61c9\u7528\u5c64\uff0c\u5b9a\u671f\u66f4\u65b0\uff0c\u5f9e\u800c\u964d\u4f4e Redis \u7684\u8ca0\u64d4\u3002<\/p>\n<pre><code>function getHotKeyData(key) {\n    if (cache.exists(key)) {\n        return cache.get(key);\n    } else {\n        const data = redis.get(key);\n        cache.set(key, data);\n        return data;\n    }\n}\n<\/code><\/pre>\n<h3 id=\"2-%e5%88%86%e7%89%87%e6%8a%80%e8%a1%93-EdDKxGhVXB\">2. \u5206\u7247\u6280\u8853<\/h3>\n<p>\u5c0d\u65bc\u9ad8\u4e26\u767c\u7684\u71b1\u9ede Key\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u7247\u6280\u8853\uff0c\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b Redis \u5be6\u4f8b\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u8acb\u6c42\uff0c\u6e1b\u5c11\u55ae\u500b\u5be6\u4f8b\u7684\u58d3\u529b\u3002<\/p>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e7%ad%96%e7%95%a5-EdDKxGhVXB\">3. \u9650\u6d41\u7b56\u7565<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u5c0d\u71b1\u9ede Key \u7684\u8a2a\u554f\u9032\u884c\u9650\u6d41\uff0c\u907f\u514d\u7cfb\u7d71\u56e0\u904e\u8f09\u800c\u5d29\u6f70\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u8a2a\u554f\u983b\u7387\u9650\u5236\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>function rateLimit(key) {\n    const currentTime = Date.now();\n    const windowTime = 60000; \/\/ 1 minute\n    const limit = 100; \/\/ max requests\n\n    const requests = redis.get(key) || [];\n    requests.push(currentTime);\n\n    \/\/ Filter out requests outside the time window\n    const filteredRequests = requests.filter(requestTime =&gt; currentTime - requestTime  limit) {\n        throw new Error(\"Rate limit exceeded\");\n    }\n\n    redis.set(key, filteredRequests);\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-EdDKxGhVXB\">\u7d50\u8ad6<\/h2>\n<p>Redis \u71b1\u9ede Key \u7684\u767c\u73fe\u8207\u61c9\u7528\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u904e\u6709\u6548\u7684\u76e3\u63a7\u548c\u512a\u5316\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6e1b\u5c11\u71b1\u9ede Key \u5c0d\u7cfb\u7d71\u7684\u5f71\u97ff\uff0c\u78ba\u4fdd\u61c9\u7528\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5b58\u5132\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u70ba Redis \u63d0\u4f9b\u7a69\u5b9a\u7684\u904b\u884c\u74b0\u5883\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 Redis \u71b1\u9ede Key \u7684\u767c\u73fe\u8207\u61c9\u7528\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u7684\u6578\u64da\u7ba1\u7406\u7b56\u7565\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-127226","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127226","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=127226"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127226\/revisions"}],"predecessor-version":[{"id":127227,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127226\/revisions\/127227"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=127226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=127226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=127226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}