{"id":161517,"date":"2024-11-04T07:05:28","date_gmt":"2024-11-03T23:05:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161517\/"},"modified":"2024-11-04T07:05:29","modified_gmt":"2024-11-03T23:05:29","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%94%a8%e6%88%b6%e8%a8%aa%e5%95%8f%e9%99%90%e6%b5%81%e7%ad%96%e7%95%a5%ef%bc%88redis-%e7%94%a8%e6%88%b6%e9%99%90%e6%b5%81%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161517\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\uff08redis \u7528\u6236\u9650\u6d41\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%94%a8%e6%88%b6%e8%a8%aa%e5%95%8f%e9%99%90%e6%b5%81%e7%ad%96%e7%95%a5%ef%bc%88redis-%e7%94%a8%e6%88%b6%e9%99%90%e6%b5%81%ef%bc%89-TwzPLnXVNG\">\u57fa\u65bc Redis \u7684\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\uff08redis \u7528\u6236\u9650\u6d41\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u7528\u6236\u8a2a\u554f\u6210\u70ba\u4e86\u8a31\u591a\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\uff0c\u4fdd\u8b77\u670d\u52d9\u5668\u8cc7\u6e90\uff0c\u4e26\u78ba\u4fdd\u6240\u6709\u7528\u6236\u90fd\u80fd\u7372\u5f97\u826f\u597d\u7684\u4f7f\u7528\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u57fa\u65bc Redis \u7684\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\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%94%a8%e6%88%b6%e8%a8%aa%e5%95%8f%e9%99%90%e6%b5%81%ef%bc%9f-TwzPLnXVNG\">\u4ec0\u9ebc\u662f\u7528\u6236\u8a2a\u554f\u9650\u6d41\uff1f<\/h2>\n<p>\u7528\u6236\u8a2a\u554f\u9650\u6d41\u662f\u6307\u5c0d\u7528\u6236\u5728\u7279\u5b9a\u6642\u9593\u5167\u7684\u8acb\u6c42\u6578\u91cf\u9032\u884c\u9650\u5236\u7684\u6280\u8853\u3002\u9019\u7a2e\u6280\u8853\u53ef\u4ee5\u9632\u6b62\u55ae\u500b\u7528\u6236\u6216 IP \u5730\u5740\u767c\u9001\u904e\u591a\u8acb\u6c42\uff0c\u5f9e\u800c\u5c0e\u81f4\u670d\u52d9\u5668\u904e\u8f09\u6216\u5d29\u6f70\u3002\u9650\u6d41\u7b56\u7565\u901a\u5e38\u7528\u65bc API \u63a5\u53e3\u3001\u7db2\u7ad9\u767b\u9304\u3001\u6578\u64da\u67e5\u8a62\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-TwzPLnXVNG\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\u548c\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u4f7f\u7528 Redis \u9032\u884c\u7528\u6236\u8a2a\u554f\u9650\u6d41\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5176\u80fd\u5920\u5feb\u901f\u8655\u7406\u5927\u91cf\u8acb\u6c42\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684 API\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u5be6\u73fe\u9650\u6d41\u908f\u8f2f\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis \u652f\u6301\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e9%99%90%e6%b5%81%e7%ad%96%e7%95%a5%e5%af%a6%e7%8f%be-TwzPLnXVNG\">\u57fa\u65bc Redis \u7684\u9650\u6d41\u7b56\u7565\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u65bc Redis \u7684\u7c21\u55ae\u7528\u6236\u8a2a\u554f\u9650\u6d41\u5be6\u73fe\u793a\u4f8b\u3002\u9019\u500b\u793a\u4f8b\u4f7f\u7528\u4e86 Redis \u7684\u5b57\u7b26\u4e32\u6578\u64da\u985e\u578b\u4f86\u8a18\u9304\u7528\u6236\u7684\u8acb\u6c42\u6b21\u6578\u3002<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e9%99%90%e6%b5%81%e5%8f%83%e6%95%b8-TwzPLnXVNG\">1. \u8a2d\u7f6e\u9650\u6d41\u53c3\u6578<\/h3>\n<pre><code>\nconst RATE_LIMIT = 100; \/\/ \u6bcf\u5206\u9418\u6700\u591a\u8acb\u6c42\u6b21\u6578\nconst TIME_WINDOW = 60; \/\/ \u6642\u9593\u7a97\u53e3\uff08\u79d2\uff09\n<\/code><\/pre>\n<h3 id=\"2-%e5%af%a6%e7%8f%be%e9%99%90%e6%b5%81%e9%82%8f%e8%bc%af-TwzPLnXVNG\">2. \u5be6\u73fe\u9650\u6d41\u908f\u8f2f<\/h3>\n<pre><code>\nasync function rateLimit(userId) {\n    const currentTime = Math.floor(Date.now() \/ 1000); \/\/ \u7576\u524d\u6642\u9593\uff08\u79d2\uff09\n    const key = `rate_limit:${userId}`;\n\n    \/\/ \u4f7f\u7528 Redis \u7684 MULTI\/EXEC \u4e8b\u52d9\u4f86\u78ba\u4fdd\u539f\u5b50\u6027\n    const pipeline = redisClient.pipeline();\n    pipeline.zremrangebyscore(key, 0, currentTime - TIME_WINDOW); \/\/ \u522a\u9664\u904e\u671f\u8acb\u6c42\n    pipeline.zcard(key); \/\/ \u7372\u53d6\u7576\u524d\u8acb\u6c42\u6578\n    pipeline.zadd(key, currentTime, currentTime); \/\/ \u6dfb\u52a0\u7576\u524d\u8acb\u6c42\n    pipeline.expire(key, TIME_WINDOW); \/\/ \u8a2d\u7f6e\u904e\u671f\u6642\u9593\n    const results = await pipeline.exec();\n\n    const requestCount = results[1][1]; \/\/ \u7372\u53d6\u8acb\u6c42\u6578\n\n    if (requestCount &gt; RATE_LIMIT) {\n        throw new Error('\u8acb\u6c42\u904e\u65bc\u983b\u7e41\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002');\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 Redis \u7684\u6709\u5e8f\u96c6\u5408\u4f86\u8a18\u9304\u7528\u6236\u7684\u8acb\u6c42\u6642\u9593\u6233\u3002\u6bcf\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u6211\u5011\u6703\u6aa2\u67e5\u8a72\u7528\u6236\u5728\u904e\u53bb\u4e00\u5206\u9418\u5167\u7684\u8acb\u6c42\u6b21\u6578\u3002\u5982\u679c\u8acb\u6c42\u6b21\u6578\u8d85\u904e\u8a2d\u5b9a\u7684\u9650\u5236\uff0c\u5247\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TwzPLnXVNG\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u7528\u6236\u8acb\u6c42\uff0c\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\u3002\u901a\u904e\u7c21\u55ae\u7684\u4ee3\u78bc\u5be6\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u9650\u6d41\u529f\u80fd\u96c6\u6210\u5230\u81ea\u5df1\u7684\u61c9\u7528\u4e2d\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\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\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u7684\u7528\u6236\u8a2a\u554f\u9650\u6d41\u7b56\u7565\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\uff0c\u9632\u6b62\u904e\u8f09\uff0c\u78ba\u4fdd\u516c\u5e73\u8cc7\u6e90\u5206\u914d\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-161517","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161517","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=161517"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161517\/revisions"}],"predecessor-version":[{"id":161518,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161517\/revisions\/161518"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}