{"id":160847,"date":"2024-11-04T01:30:25","date_gmt":"2024-11-03T17:30:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160847\/"},"modified":"2024-11-04T01:30:26","modified_gmt":"2024-11-03T17:30:26","slug":"%e4%ba%92%e8%81%af%e7%b6%b2%e5%a4%a7%e5%bb%a0%e9%9d%a2%e8%a9%a6%ef%bc%9a%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e5%85%a8%e5%b1%80%e6%8e%a5%e5%8f%a3%e9%99%90%e6%b5%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160847\/","title":{"rendered":"\u4e92\u806f\u7db2\u5927\u5ee0\u9762\u8a66\uff1a\u5982\u4f55\u5229\u7528 Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41"},"content":{"rendered":"<h1 id=\"%e4%ba%92%e8%81%af%e7%b6%b2%e5%a4%a7%e5%bb%a0%e9%9d%a2%e8%a9%a6%ef%bc%9a%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e5%85%a8%e5%b1%80%e6%8e%a5%e5%8f%a3%e9%99%90%e6%b5%81-jbbVFLBCzw\">\u4e92\u806f\u7db2\u5927\u5ee0\u9762\u8a66\uff1a\u5982\u4f55\u5229\u7528 Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u4e92\u806f\u7db2\u74b0\u5883\u4e2d\uff0c\u63a5\u53e3\u9650\u6d41\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u6280\u8853\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\u3002\u9762\u8a66\u4e2d\uff0c\u8a31\u591a\u5927\u5ee0\u6703\u8003\u5bdf\u5019\u9078\u4eba\u5c0d\u65bc\u63a5\u53e3\u9650\u6d41\u7684\u7406\u89e3\u548c\u5be6\u73fe\u80fd\u529b\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\u548c\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%8e%a5%e5%8f%a3%e9%99%90%e6%b5%81%ef%bc%9f-jbbVFLBCzw\">\u4ec0\u9ebc\u662f\u63a5\u53e3\u9650\u6d41\uff1f<\/h2>\n<p>\u63a5\u53e3\u9650\u6d41\u662f\u6307\u5c0d\u67d0\u4e00\u63a5\u53e3\u7684\u8acb\u6c42\u6578\u91cf\u9032\u884c\u9650\u5236\uff0c\u4ee5\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\u3002\u9019\u7a2e\u6280\u8853\u53ef\u4ee5\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\uff0c\u78ba\u4fdd\u5176\u5728\u9ad8\u6d41\u91cf\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u7a69\u5b9a\u904b\u884c\u3002\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41<\/li>\n<li>\u6ed1\u52d5\u7a97\u53e3\u9650\u6d41<\/li>\n<li>\u4ee4\u724c\u6876\u7b97\u6cd5<\/li>\n<li>\u6f0f\u6876\u7b97\u6cd5<\/li>\n<\/ul>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-jbbVFLBCzw\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5177\u6709\u4ee5\u4e0b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>Redis \u7684\u6578\u64da\u64cd\u4f5c\u901f\u5ea6\u6975\u5feb\uff0c\u80fd\u5920\u652f\u6301\u6bcf\u79d2\u6578\u5341\u842c\u6b21\u7684\u8acb\u6c42\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff1a<\/strong>\u652f\u6301\u6578\u64da\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5728\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u652f\u6301\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e5%af%a6%e7%8f%be%e5%85%a8%e5%b1%80%e6%8e%a5%e5%8f%a3%e9%99%90%e6%b5%81%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%80%9d%e8%b7%af-jbbVFLBCzw\">Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41\u7684\u57fa\u672c\u601d\u8def<\/h2>\n<p>\u4f7f\u7528 Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41\u7684\u57fa\u672c\u601d\u8def\u662f\u5229\u7528 Redis \u7684\u9375\u503c\u5b58\u5132\u7279\u6027\uff0c\u5c07\u6bcf\u500b\u7528\u6236\u7684\u8acb\u6c42\u6b21\u6578\u5b58\u5132\u5728 Redis \u4e2d\uff0c\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e8%ab%8b%e6%b1%82%e8%a8%88%e6%95%b8%e5%99%a8-jbbVFLBCzw\">1. \u8a2d\u7f6e\u8acb\u6c42\u8a08\u6578\u5668<\/h3>\n<p>\u6bcf\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u7cfb\u7d71\u6703\u5728 Redis \u4e2d\u589e\u52a0\u4e00\u500b\u8a08\u6578\u5668\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684 <code>INCR<\/code> \u547d\u4ee4\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>INCR user:123:request_count<\/code><\/pre>\n<p>\u9019\u88e1\u7684 <code>user:123:request_count<\/code> \u662f\u7528\u6236 ID \u7684\u8acb\u6c42\u8a08\u6578\u5668\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-jbbVFLBCzw\">2. \u8a2d\u7f6e\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u8a08\u6578\u5668\u7121\u9650\u589e\u9577\uff0c\u6211\u5011\u9700\u8981\u70ba\u8a08\u6578\u5668\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>EXPIRE user:123:request_count 60<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u8a08\u6578\u5668\u5728 60 \u79d2\u5f8c\u6703\u81ea\u52d5\u6e05\u9664\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e8%ab%8b%e6%b1%82%e6%ac%a1%e6%95%b8-jbbVFLBCzw\">3. \u6aa2\u67e5\u8acb\u6c42\u6b21\u6578<\/h3>\n<p>\u5728\u6bcf\u6b21\u8acb\u6c42\u5230\u4f86\u6642\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u8acb\u6c42\u6b21\u6578\u662f\u5426\u8d85\u904e\u9650\u5236\u3002\u5982\u679c\u8d85\u904e\u9650\u5236\uff0c\u5247\u62d2\u7d55\u8acb\u6c42\uff1b\u5426\u5247\uff0c\u5141\u8a31\u8acb\u6c42\u4e26\u66f4\u65b0\u8a08\u6578\u5668\uff1a<\/p>\n<pre><code>if (GET user:123:request_count &gt; limit) {\n    return \"Too many requests\";\n} else {\n    INCR user:123:request_count;\n}<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-jbbVFLBCzw\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Node.js \u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u63a5\u53e3\u9650\u6d41\uff1a<\/p>\n<pre><code>const redis = require('redis');\nconst client = redis.createClient();\n\nconst limit = 100; \/\/ \u6bcf\u5206\u9418\u6700\u591a\u8acb\u6c42\u6b21\u6578\n\napp.use((req, res, next) =&gt; {\n    const userId = req.user.id; \/\/ \u5047\u8a2d\u7528\u6236 ID \u5b58\u5728\u8acb\u6c42\u4e2d\n    const key = `user:${userId}:request_count`;\n\n    client.get(key, (err, count) =&gt; {\n        if (err) throw err;\n\n        count = parseInt(count) || 0;\n\n        if (count &gt;= limit) {\n            return res.status(429).send(\"Too many requests\");\n        }\n\n        client.multi()\n            .incr(key)\n            .expire(key, 60)\n            .exec();\n        \n        next();\n    });\n});<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jbbVFLBCzw\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u4e92\u806f\u7db2\u5927\u5ee0\u7684\u9762\u8a66\u4e2d\uff0c\u638c\u63e1\u5982\u4f55\u5229\u7528 Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41\u662f\u4e00\u9805\u91cd\u8981\u6280\u80fd\u3002\u901a\u904e\u8a2d\u7f6e\u8acb\u6c42\u8a08\u6578\u5668\u3001\u904e\u671f\u6642\u9593\u4ee5\u53ca\u6aa2\u67e5\u8acb\u6c42\u6b21\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u8b77\u7cfb\u7d71\u514d\u53d7\u904e\u8f09\u5f71\u97ff\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u5728\u9ad8\u6d41\u91cf\u61c9\u7528\u4e2d\u7684\u61c9\u7528\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728\u4e92\u806f\u7db2\u5927\u5ee0\u9762\u8a66\u4e2d\u5229\u7528 Redis \u5be6\u73fe\u5168\u5c40\u63a5\u53e3\u9650\u6d41\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-160847","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160847","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=160847"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160847\/revisions"}],"predecessor-version":[{"id":160848,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160847\/revisions\/160848"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}