{"id":153039,"date":"2024-11-02T04:07:23","date_gmt":"2024-11-01T20:07:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153039\/"},"modified":"2024-11-02T04:07:24","modified_gmt":"2024-11-01T20:07:24","slug":"%e7%aa%97%e5%8f%a3%e7%9a%84%e7%b7%a9%e5%ad%98-redis-%e7%9a%84%e5%af%a6%e7%8f%be%ef%bc%88window-%e7%9a%84-redis%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153039\/","title":{"rendered":"\u7a97\u53e3\u7684\u7de9\u5b58 Redis \u7684\u5be6\u73fe\uff08Window \u7684 Redis\uff09"},"content":{"rendered":"<h1 id=\"%e7%aa%97%e5%8f%a3%e7%9a%84%e7%b7%a9%e5%ad%98-redis-%e7%9a%84%e5%af%a6%e7%8f%be%ef%bc%88window-%e7%9a%84-redis%ef%bc%89-IlHurIYJpx\">\u7a97\u53e3\u7684\u7de9\u5b58 Redis \u7684\u5be6\u73fe\uff08Window \u7684 Redis\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u958b\u767c\u8005\u9700\u8981\u5c0b\u627e\u66f4\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u6578\u64da\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u7a97\u53e3\u7684\u7de9\u5b58\uff08Window Cache\uff09\u5728 Redis \u4e2d\u7684\u5be6\u73fe\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%aa%97%e5%8f%a3%e7%9a%84%e7%b7%a9%e5%ad%98%ef%bc%9f-IlHurIYJpx\">\u4ec0\u9ebc\u662f\u7a97\u53e3\u7684\u7de9\u5b58\uff1f<\/h2>\n<p>\u7a97\u53e3\u7684\u7de9\u5b58\u662f\u4e00\u7a2e\u7de9\u5b58\u7b56\u7565\uff0c\u901a\u5e38\u7528\u65bc\u9650\u5236\u5728\u7279\u5b9a\u6642\u9593\u7a97\u53e3\u5167\u7684\u8acb\u6c42\u6578\u91cf\u3002\u9019\u7a2e\u7b56\u7565\u5728\u9632\u6b62\u6feb\u7528\u548c\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\u65b9\u9762\u975e\u5e38\u6709\u6548\u3002\u4f8b\u5982\uff0c\u7576\u4e00\u500b API \u63a5\u53e3\u9700\u8981\u9650\u5236\u6bcf\u500b\u7528\u6236\u5728\u4e00\u5206\u9418\u5167\u7684\u8acb\u6c42\u6b21\u6578\u6642\uff0c\u7a97\u53e3\u7684\u7de9\u5b58\u53ef\u4ee5\u5e6b\u52a9\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e7%89%b9%e6%80%a7-IlHurIYJpx\">Redis \u7684\u7279\u6027<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002<\/li>\n<li>\u63d0\u4f9b\u6301\u4e45\u5316\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u6578\u64da\u4fdd\u5b58\u5728\u78c1\u789f\u4e0a\u3002<\/li>\n<li>\u652f\u6301\u9ad8\u4f75\u767c\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u9069\u5408\u7528\u65bc\u7de9\u5b58\u548c\u5373\u6642\u6578\u64da\u8655\u7406\u3002<\/li>\n<li>\u5177\u5099\u539f\u5b50\u64cd\u4f5c\uff0c\u80fd\u5920\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-redis-%e4%b8%ad%e5%af%a6%e7%8f%be%e7%aa%97%e5%8f%a3%e7%9a%84%e7%b7%a9%e5%ad%98-IlHurIYJpx\">\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u7a97\u53e3\u7684\u7de9\u5b58<\/h2>\n<p>\u5728 Redis \u4e2d\u5be6\u73fe\u7a97\u53e3\u7684\u7de9\u5b58\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528\u9375\u503c\u5c0d\u4f86\u5b58\u5132\u8acb\u6c42\u8a08\u6578\u548c\u6642\u9593\u6233\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-1%ef%bc%9a%e8%a8%ad%e7%bd%ae%e8%ab%8b%e6%b1%82%e8%a8%88%e6%95%b8-IlHurIYJpx\">\u6b65\u9a5f 1\uff1a\u8a2d\u7f6e\u8acb\u6c42\u8a08\u6578<\/h3>\n<p>\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u8a72\u7528\u6236\u5728\u7576\u524d\u6642\u9593\u7a97\u53e3\u5167\u7684\u8acb\u6c42\u6b21\u6578\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684 <code>INCR<\/code> \u547d\u4ee4\u4f86\u589e\u52a0\u8a08\u6578\uff1a<\/p>\n<pre><code>INCR user:123:requests<\/code><\/pre>\n<p>\u9019\u88e1\u7684 <code>user:123:requests<\/code> \u662f\u7528\u6236 ID \u7684\u552f\u4e00\u6a19\u8b58\u7b26\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-2%ef%bc%9a%e8%a8%ad%e7%bd%ae%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-IlHurIYJpx\">\u6b65\u9a5f 2\uff1a\u8a2d\u7f6e\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u78ba\u4fdd\u8a08\u6578\u5728\u7279\u5b9a\u6642\u9593\u7a97\u53e3\u5167\u6709\u6548\uff0c\u6211\u5011\u9700\u8981\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>EXPIRE user:123:requests 60<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u8a08\u6578\u5c07\u5728 60 \u79d2\u5f8c\u81ea\u52d5\u91cd\u7f6e\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-3%ef%bc%9a%e6%aa%a2%e6%9f%a5%e8%ab%8b%e6%b1%82%e6%ac%a1%e6%95%b8-IlHurIYJpx\">\u6b65\u9a5f 3\uff1a\u6aa2\u67e5\u8acb\u6c42\u6b21\u6578<\/h3>\n<p>\u5728\u6bcf\u6b21\u8acb\u6c42\u6642\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u8acb\u6c42\u6b21\u6578\u662f\u5426\u8d85\u904e\u9650\u5236\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u5e0c\u671b\u9650\u5236\u6bcf\u500b\u7528\u6236\u6bcf\u5206\u9418\u6700\u591a\u53ea\u80fd\u767c\u9001 10 \u6b21\u8acb\u6c42\uff0c\u53ef\u4ee5\u9019\u6a23\u6aa2\u67e5\uff1a<\/p>\n<pre><code>\nif (GET user:123:requests &gt; 10) {\n    return \"\u8acb\u6c42\u904e\u591a\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002\";\n}\n<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-IlHurIYJpx\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 Redis \u5be6\u73fe\u7a97\u53e3\u7684\u7de9\u5b58\uff1a<\/p>\n<pre><code>\nconst redis = require('redis');\nconst client = redis.createClient();\n\nconst RATE_LIMIT = 10; \/\/ \u6bcf\u5206\u9418\u6700\u591a\u8acb\u6c42\u6b21\u6578\nconst WINDOW_SIZE = 60; \/\/ \u7a97\u53e3\u5927\u5c0f\uff08\u79d2\uff09\n\nfunction rateLimiter(userId) {\n    const key = `user:${userId}:requests`;\n\n    client.incr(key, (err, requests) =&gt; {\n        if (err) throw err;\n\n        if (requests === 1) {\n            client.expire(key, WINDOW_SIZE);\n        }\n\n        if (requests &gt; RATE_LIMIT) {\n            console.log(\"\u8acb\u6c42\u904e\u591a\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002\");\n        } else {\n            console.log(\"\u8acb\u6c42\u6210\u529f\u3002\");\n        }\n    });\n}\n\n\/\/ \u6e2c\u8a66\nrateLimiter(123);\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-IlHurIYJpx\">\u7d50\u8ad6<\/h2>\n<p>\u7a97\u53e3\u7684\u7de9\u5b58\u662f\u4e00\u7a2e\u6709\u6548\u7684\u7b56\u7565\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u7528\u6236\u8acb\u6c42\uff0c\u9632\u6b62\u6feb\u7528\u4e26\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\u3002\u901a\u904e\u4f7f\u7528 Redis \u7684\u9ad8\u6548\u6578\u64da\u7d50\u69cb\u548c\u547d\u4ee4\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u7121\u8ad6\u662f\u7528\u65bc API \u9650\u6d41\u9084\u662f\u5176\u4ed6\u5834\u666f\uff0cRedis \u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u611f\u8208\u8da3\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u7a97\u53e3\u7de9\u5b58\u7684Redis\u5be6\u73fe\uff0c\u4e86\u89e3\u5982\u4f55\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u6d41\u548c\u63d0\u5347\u61c9\u7528\u6027\u80fd\uff0c\u512a\u5316\u7cfb\u7d71\u8cc7\u6e90\u4f7f\u7528\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-153039","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153039","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=153039"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153039\/revisions"}],"predecessor-version":[{"id":153040,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153039\/revisions\/153040"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}