{"id":161331,"date":"2024-11-04T05:32:36","date_gmt":"2024-11-03T21:32:36","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161331\/"},"modified":"2024-11-04T05:32:37","modified_gmt":"2024-11-03T21:32:37","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%e9%99%8d%e7%b4%9a%e7%ad%96%e7%95%a5%ef%bc%88redis-%e6%9c%8d%e5%8b%99%e9%99%8d%e7%b4%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161331\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565\uff08redis \u670d\u52d9\u964d\u7d1a\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%e9%99%8d%e7%b4%9a%e7%ad%96%e7%95%a5%ef%bc%88redis-%e6%9c%8d%e5%8b%99%e9%99%8d%e7%b4%9a%ef%bc%89-yPHCjnTUIk\">\u57fa\u65bc Redis \u7684\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565\uff08redis \u670d\u52d9\u964d\u7d1a\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u548c\u53ef\u7528\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u7cfb\u7d71\u7684\u8ca0\u8f09\u4e5f\u96a8\u4e4b\u4e0a\u5347\uff0c\u9019\u4f7f\u5f97\u670d\u52d9\u8cea\u91cf\u7684\u4fdd\u969c\u8b8a\u5f97\u6108\u52a0\u91cd\u8981\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u7136\u800c\uff0c\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u5982\u4f55\u6709\u6548\u5730\u9032\u884c\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u4e00\u500b\u6311\u6230\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%e9%99%8d%e7%b4%9a%ef%bc%9f-yPHCjnTUIk\">\u4ec0\u9ebc\u662f\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\uff1f<\/h2>\n<p>\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u662f\u6307\u5728\u7cfb\u7d71\u9762\u81e8\u9ad8\u8ca0\u8f09\u6216\u6545\u969c\u6642\uff0c\u901a\u904e\u964d\u4f4e\u67d0\u4e9b\u529f\u80fd\u7684\u53ef\u7528\u6027\u4f86\u7dad\u6301\u7cfb\u7d71\u7684\u6574\u9ad4\u904b\u884c\u3002\u9019\u7a2e\u7b56\u7565\u53ef\u4ee5\u5e6b\u52a9\u7cfb\u7d71\u5728\u9762\u5c0d\u7a81\u767c\u6d41\u91cf\u6216\u8cc7\u6e90\u4e0d\u8db3\u7684\u60c5\u6cc1\u4e0b\uff0c\u4fdd\u6301\u57fa\u672c\u7684\u670d\u52d9\u80fd\u529b\uff0c\u5f9e\u800c\u907f\u514d\u6574\u500b\u7cfb\u7d71\u7684\u5d29\u6f70\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e7%89%b9%e6%80%a7%e8%88%87%e6%8c%91%e6%88%b0-yPHCjnTUIk\">Redis \u7684\u7279\u6027\u8207\u6311\u6230<\/h2>\n<p>Redis \u4ee5\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u8457\u7a31\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u6027\u80fd\u74f6\u9838\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b Redis \u7684\u7279\u6027\u53ca\u5176\u53ef\u80fd\u9762\u81e8\u7684\u6311\u6230\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u80fd\u5920\u5728\u5167\u5b58\u4e2d\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\uff0c\u4f46\u7576\u8acb\u6c42\u91cf\u904e\u5927\u6642\uff0c\u4ecd\u7136\u53ef\u80fd\u5c0e\u81f4\u5ef6\u9072\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>Redis \u63d0\u4f9b RDB \u548c AOF \u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u4f46\u5728\u9ad8\u8ca0\u8f09\u4e0b\uff0c\u6301\u4e45\u5316\u904e\u7a0b\u53ef\u80fd\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u55ae\u7dda\u7a0b\u6a21\u578b\uff1a<\/strong>Redis \u4f7f\u7528\u55ae\u7dda\u7a0b\u8655\u7406\u8acb\u6c42\uff0c\u9019\u610f\u5473\u8457\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u8acb\u6c42\u7684\u8655\u7406\u901f\u5ea6\u53ef\u80fd\u53d7\u5230\u9650\u5236\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%e9%99%8d%e7%b4%9a%e7%ad%96%e7%95%a5-yPHCjnTUIk\">\u57fa\u65bc Redis \u7684\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u5730\u5be6\u65bd\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e9%99%8d%e4%bd%8e%e6%95%b8%e6%93%9a%e4%b8%80%e8%87%b4%e6%80%a7%e8%a6%81%e6%b1%82-yPHCjnTUIk\">1. \u964d\u4f4e\u6578\u64da\u4e00\u81f4\u6027\u8981\u6c42<\/h3>\n<p>\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u8003\u616e\u964d\u4f4e\u6578\u64da\u7684\u4e00\u81f4\u6027\u8981\u6c42\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u67d0\u4e9b\u975e\u95dc\u9375\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u9078\u64c7\u4f7f\u7528\u6700\u7d42\u4e00\u81f4\u6027\u6a21\u578b\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11 Redis \u7684\u5beb\u5165\u58d3\u529b\u3002<\/p>\n<pre><code>SET key value NX EX 60  \/\/ \u53ea\u5728 key \u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\uff0c\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\n<\/code><\/pre>\n<h3 id=\"2-%e9%99%90%e5%88%b6%e8%ab%8b%e6%b1%82%e9%80%9f%e7%8e%87-yPHCjnTUIk\">2. \u9650\u5236\u8acb\u6c42\u901f\u7387<\/h3>\n<p>\u901a\u904e\u5be6\u65bd\u8acb\u6c42\u901f\u7387\u9650\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u9032\u5165 Redis \u7684\u8acb\u6c42\u6578\u91cf\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4e2d\u9593\u4ef6\u6216 API \u7db2\u95dc\u4f86\u5be6\u73fe\uff0c\u5f9e\u800c\u907f\u514d Redis \u904e\u8f09\u3002<\/p>\n<pre><code>if (requestCount &gt; limit) {\n    return \"Too Many Requests\";\n}\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%e7%ad%96%e7%95%a5-yPHCjnTUIk\">3. \u4f7f\u7528\u7de9\u5b58\u7a7f\u900f\u7b56\u7565<\/h3>\n<p>\u7de9\u5b58\u7a7f\u900f\u662f\u6307\u8acb\u6c42\u7684\u6578\u64da\u5728\u7de9\u5b58\u548c\u6578\u64da\u5eab\u4e2d\u90fd\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668\u4f86\u6aa2\u67e5\u8acb\u6c42\u7684\u6709\u6548\u6027\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d Redis \u7684\u7121\u6548\u8acb\u6c42\u3002<\/p>\n<pre><code>if (bloomFilter.mightContain(key)) {\n    \/\/ \u67e5\u8a62 Redis\n} else {\n    \/\/ \u8fd4\u56de\u7a7a\u7d50\u679c\n}\n<\/code><\/pre>\n<h3 id=\"4-%e9%99%8d%e7%b4%9a%e5%8a%9f%e8%83%bd-yPHCjnTUIk\">4. \u964d\u7d1a\u529f\u80fd<\/h3>\n<p>\u5728\u7cfb\u7d71\u8ca0\u8f09\u904e\u9ad8\u6642\uff0c\u53ef\u4ee5\u9078\u64c7\u6027\u5730\u95dc\u9589\u67d0\u4e9b\u975e\u6838\u5fc3\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u67d0\u4e9b\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u67e5\u8a62\uff0c\u53ef\u4ee5\u8fd4\u56de\u9810\u8a2d\u503c\u6216\u7c21\u5316\u7684\u7d50\u679c\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d Redis \u7684\u8acb\u6c42\u3002<\/p>\n<pre><code>if (isHighLoad) {\n    return defaultResponse; \/\/ \u8fd4\u56de\u9810\u8a2d\u97ff\u61c9\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-yPHCjnTUIk\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565\u662f\u78ba\u4fdd\u7cfb\u7d71\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u7a69\u5b9a\u904b\u884c\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u904e\u964d\u4f4e\u6578\u64da\u4e00\u81f4\u6027\u8981\u6c42\u3001\u9650\u5236\u8acb\u6c42\u901f\u7387\u3001\u4f7f\u7528\u7de9\u5b58\u7a7f\u900f\u7b56\u7565\u4ee5\u53ca\u964d\u7d1a\u529f\u80fd\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11 Redis \u7684\u58d3\u529b\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5728\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u8003\u616e\u5230 Redis \u7684\u7279\u6027\u548c\u6311\u6230\uff0c\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u61c9\u5c0d\u9ad8\u4e26\u767c\u5834\u666f\uff0c\u78ba\u4fdd\u670d\u52d9\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u7684\u670d\u52d9\u8cea\u91cf\u964d\u7d1a\u7b56\u7565\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u5728\u9ad8\u8ca0\u8f09\u4e0b\u4ecd\u80fd\u63d0\u4f9b\u57fa\u672c\u670d\u52d9\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-161331","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161331","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=161331"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161331\/revisions"}],"predecessor-version":[{"id":161332,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161331\/revisions\/161332"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}