{"id":197492,"date":"2024-11-14T08:24:18","date_gmt":"2024-11-14T00:24:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/197492\/"},"modified":"2024-11-14T08:24:19","modified_gmt":"2024-11-14T00:24:19","slug":"%e5%88%a9%e7%94%a8redis%e9%9d%88%e6%b4%bb%e6%8e%a7%e5%88%b6%e5%af%a6%e6%99%82%e4%b8%a6%e7%99%bc%e9%87%8f%ef%bc%88%e4%bd%bf%e7%94%a8redis%e6%8e%a7%e5%88%b6%e4%b8%a6%e7%99%bc%e9%87%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/197492\/","title":{"rendered":"\u5229\u7528Redis\u9748\u6d3b\u63a7\u5236\u5be6\u6642\u4e26\u767c\u91cf\uff08\u4f7f\u7528redis\u63a7\u5236\u4e26\u767c\u91cf\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e9%9d%88%e6%b4%bb%e6%8e%a7%e5%88%b6%e5%af%a6%e6%99%82%e4%b8%a6%e7%99%bc%e9%87%8f-MusQSqPvvB\">\u5229\u7528Redis\u9748\u6d3b\u63a7\u5236\u5be6\u6642\u4e26\u767c\u91cf<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u5be6\u6642\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u4e0d\u65b7\u589e\u52a0\uff0c\u5c24\u5176\u662f\u5728\u96fb\u5b50\u5546\u52d9\u3001\u793e\u4ea4\u5a92\u9ad4\u548c\u5373\u6642\u901a\u8a0a\u7b49\u9818\u57df\u3002\u9019\u4e9b\u61c9\u7528\u7a0b\u5e8f\u901a\u5e38\u9700\u8981\u8655\u7406\u5927\u91cf\u7684\u4e26\u767c\u8acb\u6c42\uff0c\u9019\u5c0d\u65bc\u5f8c\u7aef\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u63d0\u51fa\u4e86\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u5de5\u5177\u4f86\u63a7\u5236\u5be6\u6642\u4e26\u767c\u91cf\uff0c\u5f9e\u800c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%ef%bc%9f-MusQSqPvvB\">\u4ec0\u9ebc\u662fRedis\uff1f<\/h2>\n<p>Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u56e0\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u5167\u5b58\u4e2d\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\u3002\u9019\u4f7f\u5f97Redis\u6210\u70ba\u8655\u7406\u9ad8\u4e26\u767c\u8acb\u6c42\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%8e%a7%e5%88%b6%e4%b8%a6%e7%99%bc%e9%87%8f%ef%bc%9f-MusQSqPvvB\">\u70ba\u4ec0\u9ebc\u9700\u8981\u63a7\u5236\u4e26\u767c\u91cf\uff1f<\/h2>\n<p>\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\uff0c\u904e\u591a\u7684\u4e26\u767c\u8acb\u6c42\u53ef\u80fd\u5c0e\u81f4\u7cfb\u7d71\u904e\u8f09\uff0c\u5f9e\u800c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002\u63a7\u5236\u4e26\u767c\u91cf\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\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\u5229\u7528\u7387\uff0c\u964d\u4f4e\u904b\u884c\u6210\u672c\u3002<\/li>\n<li>\u6539\u5584\u7528\u6236\u9ad4\u9a57\uff0c\u6e1b\u5c11\u8acb\u6c42\u5ef6\u9072\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e6%8e%a7%e5%88%b6%e4%b8%a6%e7%99%bc%e9%87%8f%e7%9a%84%e7%ad%96%e7%95%a5-MusQSqPvvB\">\u4f7f\u7528Redis\u63a7\u5236\u4e26\u767c\u91cf\u7684\u7b56\u7565<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5229\u7528Redis\u63a7\u5236\u4e26\u767c\u91cf\u7684\u5e38\u898b\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e8%a8%88%e6%95%b8%e5%99%a8-MusQSqPvvB\">1. \u4f7f\u7528\u8a08\u6578\u5668<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u8a08\u6578\u5668\u4f86\u8ddf\u8e2a\u7576\u524d\u7684\u4e26\u767c\u8acb\u6c42\u6578\u91cf\u3002\u7576\u8acb\u6c42\u9032\u4f86\u6642\uff0c\u589e\u52a0\u8a08\u6578\u5668\u7684\u503c\uff1b\u7576\u8acb\u6c42\u5b8c\u6210\u6642\uff0c\u6e1b\u5c11\u8a08\u6578\u5668\u7684\u503c\u3002\u5982\u679c\u8a08\u6578\u5668\u7684\u503c\u8d85\u904e\u9810\u8a2d\u7684\u95be\u503c\uff0c\u5247\u62d2\u7d55\u65b0\u7684\u8acb\u6c42\u6216\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<pre><code>\n# \u589e\u52a0\u8a08\u6578\u5668\nINCR concurrent_requests\n\n# \u6aa2\u67e5\u4e26\u767c\u91cf\nif (GET concurrent_requests &gt; MAX_CONCURRENT_REQUESTS) {\n    return \"Too many requests\";\n}\n\n# \u8acb\u6c42\u5b8c\u6210\u5f8c\u6e1b\u5c11\u8a08\u6578\u5668\nDECR concurrent_requests\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%8e%96-MusQSqPvvB\">2. \u4f7f\u7528\u9396<\/h3>\n<p>Redis\u7684\u5206\u5e03\u5f0f\u9396\u53ef\u4ee5\u7528\u4f86\u63a7\u5236\u5c0d\u7279\u5b9a\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u7576\u4e00\u500b\u8acb\u6c42\u9700\u8981\u8a2a\u554f\u67d0\u500b\u8cc7\u6e90\u6642\uff0c\u9996\u5148\u7372\u53d6\u9396\uff0c\u7136\u5f8c\u57f7\u884c\u64cd\u4f5c\uff0c\u6700\u5f8c\u91cb\u653e\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u80fd\u5920\u8a2a\u554f\u8a72\u8cc7\u6e90\u3002<\/p>\n<pre><code>\n# \u7372\u53d6\u9396\nSETNX resource_lock \"locked\"\n\n# \u57f7\u884c\u64cd\u4f5c\nif (GET resource_lock == \"locked\") {\n    \/\/ \u57f7\u884c\u8acb\u6c42\n}\n\n# \u91cb\u653e\u9396\nDEL resource_lock\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e4%bb%a4%e7%89%8c%e6%a1%b6%e7%ae%97%e6%b3%95-MusQSqPvvB\">3. \u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5<\/h3>\n<p>\u4ee4\u724c\u6876\u7b97\u6cd5\u662f\u4e00\u7a2e\u6d41\u91cf\u63a7\u5236\u7b97\u6cd5\uff0c\u53ef\u4ee5\u7528\u4f86\u9650\u5236\u8acb\u6c42\u7684\u901f\u7387\u3002\u6bcf\u7576\u8acb\u6c42\u9032\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\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u4e26\u767c\u91cf\uff0c\u4e26\u4e14\u80fd\u5920\u5e73\u6ed1\u6d41\u91cf\u3002<\/p>\n<pre><code>\n# \u6aa2\u67e5\u4ee4\u724c\nif (GET tokens &gt; 0) {\n    DECR tokens\n    \/\/ \u5141\u8a31\u8acb\u6c42\n} else {\n    \/\/ \u62d2\u7d55\u8acb\u6c42\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-MusQSqPvvB\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528Redis\u9748\u6d3b\u63a7\u5236\u5be6\u6642\u4e26\u767c\u91cf\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u61c9\u5c0d\u9ad8\u6d41\u91cf\u7684\u6311\u6230\u3002\u901a\u904e\u4f7f\u7528\u8a08\u6578\u5668\u3001\u9396\u548c\u4ee4\u724c\u6876\u7b97\u6cd5\u7b49\u6280\u8853\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u7684\u826f\u597d\u9ad4\u9a57\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u8853\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u60a8\u7684\u8cc7\u6e90\u548c\u6d41\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5229\u7528Redis\u9748\u6d3b\u63a7\u5236\u5be6\u6642\u4e26\u767c\u91cf\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u80fd\uff0c\u78ba\u4fdd\u8cc7\u6e90\u5408\u7406\u5206\u914d\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u7ba1\u7406\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-197492","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197492","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=197492"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197492\/revisions"}],"predecessor-version":[{"id":197493,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197492\/revisions\/197493"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=197492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=197492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=197492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}