{"id":183044,"date":"2024-11-10T01:28:20","date_gmt":"2024-11-09T17:28:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183044\/"},"modified":"2024-11-10T01:28:21","modified_gmt":"2024-11-09T17:28:21","slug":"%e5%af%a6%e7%8f%beredis%e8%a8%aa%e5%95%8f%e9%87%8f%e6%8e%a7%e5%88%b6%e7%9a%84%e7%ad%96%e7%95%a5%e7%a0%94%e7%a9%b6%ef%bc%88redis%e8%a8%aa%e5%95%8f%e9%87%8f%e6%80%8e%e9%ba%bc%e8%a8%ad%e5%ae%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183044\/","title":{"rendered":"\u5be6\u73feRedis\u8a2a\u554f\u91cf\u63a7\u5236\u7684\u7b56\u7565\u7814\u7a76\uff08redis\u8a2a\u554f\u91cf\u600e\u9ebc\u8a2d\u5b9a\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%beredis%e8%a8%aa%e5%95%8f%e9%87%8f%e6%8e%a7%e5%88%b6%e7%9a%84%e7%ad%96%e7%95%a5%e7%a0%94%e7%a9%b6%ef%bc%88redis%e8%a8%aa%e5%95%8f%e9%87%8f%e6%80%8e%e9%ba%bc%e8%a8%ad%e5%ae%9a%ef%bc%89-AOGxtOPBTb\">\u5be6\u73feRedis\u8a2a\u554f\u91cf\u63a7\u5236\u7684\u7b56\u7565\u7814\u7a76\uff08redis\u8a2a\u554f\u91cf\u600e\u9ebc\u8a2d\u5b9a\uff09<\/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\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u8a2a\u554f\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u63a7\u5236Redis\u7684\u8a2a\u554f\u91cf\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u5be6\u73feRedis\u8a2a\u554f\u91cf\u63a7\u5236\u7684\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u5176\u8cc7\u6e90\u3002<\/p>\n<h2 id=\"1-%e8%a8%aa%e5%95%8f%e9%87%8f%e6%8e%a7%e5%88%b6%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-AOGxtOPBTb\">1. \u8a2a\u554f\u91cf\u63a7\u5236\u7684\u5fc5\u8981\u6027<\/h2>\n<p>Redis\u7684\u9ad8\u6027\u80fd\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\uff0c\u4f46\u9019\u4e5f\u610f\u5473\u8457\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u8cc7\u6e90\u8017\u76e1\u7684\u554f\u984c\u3002\u8a2a\u554f\u91cf\u63a7\u5236\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\uff1a<\/p>\n<ul>\n<li>\u9632\u6b62\u670d\u52d9\u5668\u904e\u8f09\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u3002<\/li>\n<li>\u63d0\u9ad8\u8cc7\u6e90\u7684\u4f7f\u7528\u6548\u7387\uff0c\u964d\u4f4e\u904b\u884c\u6210\u672c\u3002<\/li>\n<li>\u4fdd\u8b77\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u907f\u514d\u56e0Redis\u7684\u9ad8\u8a2a\u554f\u91cf\u800c\u5c0e\u81f4\u7684\u6578\u64da\u4e00\u81f4\u6027\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e8%a8%aa%e5%95%8f%e9%87%8f%e6%8e%a7%e5%88%b6%e7%9a%84%e7%ad%96%e7%95%a5-AOGxtOPBTb\">2. \u8a2a\u554f\u91cf\u63a7\u5236\u7684\u7b56\u7565<\/h2>\n<h3 id=\"2-1-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%85%a7%e5%bb%ba%e9%99%90%e6%b5%81%e5%8a%9f%e8%83%bd-AOGxtOPBTb\">2.1 \u4f7f\u7528Redis\u7684\u5167\u5efa\u9650\u6d41\u529f\u80fd<\/h3>\n<p>Redis\u672c\u8eab\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9650\u6d41\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u4f7f\u7528<code>INCR<\/code>\u548c<code>EXPIRE<\/code>\u547d\u4ee4\u4f86\u5be6\u73fe\u7c21\u55ae\u7684\u8a2a\u554f\u91cf\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u9650\u6d41\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET user:123:limit 10\nEXPIRE user:123:limit 60\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u70ba\u7528\u6236123\u8a2d\u7f6e\u4e86\u4e00\u500b60\u79d2\u5167\u6700\u591a\u53ea\u80fd\u8a2a\u554f10\u6b21\u7684\u9650\u5236\u3002\u6bcf\u6b21\u7528\u6236\u8a2a\u554f\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u6aa2\u67e5\u8a2a\u554f\u6b21\u6578\uff1a<\/p>\n<pre><code>if (INCR user:123:count &gt; 10) {\n    \/\/ \u8d85\u904e\u9650\u5236\uff0c\u62d2\u7d55\u8a2a\u554f\n} else {\n    \/\/ \u5141\u8a31\u8a2a\u554f\n}\n<\/code><\/pre>\n<h3 id=\"2-2-%e4%bd%bf%e7%94%a8%e4%bb%a4%e7%89%8c%e6%a1%b6%e7%ae%97%e6%b3%95-AOGxtOPBTb\">2.2 \u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5<\/h3>\n<p>\u4ee4\u724c\u6876\u7b97\u6cd5\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\uff0c\u9069\u5408\u65bc\u9700\u8981\u5e73\u6ed1\u6d41\u91cf\u7684\u5834\u666f\u3002\u5176\u57fa\u672c\u539f\u7406\u662f\uff1a\u6bcf\u7576\u8acb\u6c42\u5230\u4f86\u6642\uff0c\u6aa2\u67e5\u6876\u4e2d\u662f\u5426\u6709\u4ee4\u724c\uff0c\u5982\u679c\u6709\u5247\u5141\u8a31\u8acb\u6c42\uff0c\u5426\u5247\u62d2\u7d55\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u57fa\u672c\u601d\u8def\uff1a<\/p>\n<pre><code>SET token_bucket 10\nEXPIRE token_bucket 60\n<\/code><\/pre>\n<p>\u6bcf\u7576\u8acb\u6c42\u5230\u4f86\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528<code>DECR<\/code>\u547d\u4ee4\u4f86\u6e1b\u5c11\u6876\u4e2d\u7684\u4ee4\u724c\u6578\u91cf\uff1a<\/p>\n<pre><code>if (DECR token_bucket &lt; 0) {\n    \/\/ \u62d2\u7d55\u8acb\u6c42\n    INCR token_bucket \/\/ \u6062\u5fa9\u4ee4\u724c\n} else {\n    \/\/ \u5141\u8a31\u8acb\u6c42\n}\n<\/code><\/pre>\n<h3 id=\"2-3-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e9%80%b2%e8%a1%8c%e5%8e%9f%e5%ad%90%e6%93%8d%e4%bd%9c-AOGxtOPBTb\">2.3 \u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u539f\u5b50\u64cd\u4f5c<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\u51fa\u73fe\u7af6\u722d\u689d\u4ef6\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Redis\u7684Lua\u8173\u672c\u4f86\u5be6\u73fe\u539f\u5b50\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u6aa2\u67e5\u548c\u66f4\u65b0\u8a2a\u554f\u6b21\u6578\u6642\u4e0d\u6703\u51fa\u73fe\u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>local current\ncurrent = redis.call('INCR', KEYS[1])\nif current == 1 then\n    redis.call('EXPIRE', KEYS[1], ARGV[1])\nend\nreturn current\n<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u53ef\u4ee5\u7528\u4f86\u539f\u5b50\u6027\u5730\u589e\u52a0\u8a2a\u554f\u8a08\u6578\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002<\/p>\n<h2 id=\"3-%e7%b8%bd%e7%b5%90-AOGxtOPBTb\">3. \u7e3d\u7d50<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u5c0dRedis\u7684\u8a2a\u554f\u91cf\u9032\u884c\u6709\u6548\u63a7\u5236\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u4f7f\u7528Redis\u7684\u5167\u5efa\u529f\u80fd\u3001\u4ee4\u724c\u6876\u7b97\u6cd5\u4ee5\u53caLua\u8173\u672c\u7b49\u7b56\u7565\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8a2a\u554f\u91cf\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u9019\u4e9b\u7b56\u7565\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u8cc7\u6e90\u7684\u4f7f\u7528\u6548\u7387\uff0c\u9084\u80fd\u4fdd\u8b77\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u548c\u9748\u6d3b\u7684\u8cc7\u6e90\u914d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u8a2a\u554f\u91cf\u63a7\u5236\u7b56\u7565\uff0c\u4e86\u89e3\u5982\u4f55\u8a2d\u5b9a\u8a2a\u554f\u91cf\u4ee5\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u7ba1\u7406\uff0c\u63d0\u5347\u7cfb\u7d71\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-183044","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183044","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=183044"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183044\/revisions"}],"predecessor-version":[{"id":183045,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183044\/revisions\/183045"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}