{"id":183342,"date":"2024-11-10T04:01:20","date_gmt":"2024-11-09T20:01:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183342\/"},"modified":"2024-11-10T04:01:21","modified_gmt":"2024-11-09T20:01:21","slug":"%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%e5%8a%9f%e8%83%bd%ef%bc%8c%e5%9f%ba%e6%96%bcredis%e8%a7%a3%e6%b1%ba%ef%bc%88%e5%9f%ba%e6%96%bcredis%e7%a7%92%e6%ae%ba%e5%8a%9f%e8%83%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183342\/","title":{"rendered":"\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\uff0c\u57fa\u65bcredis\u89e3\u6c7a\uff08\u57fa\u65bcredis\u79d2\u6bba\u529f\u80fd\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%e5%8a%9f%e8%83%bd%ef%bc%8c%e5%9f%ba%e6%96%bcredis%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-rqapKwFGRP\">\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\uff0c\u57fa\u65bcRedis\u89e3\u6c7a\u65b9\u6848<\/h1>\n<p>\u5728\u96fb\u5b50\u5546\u52d9\u7684\u4e16\u754c\u4e2d\uff0c\u79d2\u6bba\u6d3b\u52d5\u5df2\u6210\u70ba\u5438\u5f15\u9867\u5ba2\u7684\u91cd\u8981\u624b\u6bb5\u3002\u9019\u7a2e\u6d3b\u52d5\u901a\u5e38\u6d89\u53ca\u5728\u77ed\u6642\u9593\u5167\u4ee5\u6975\u4f4e\u7684\u50f9\u683c\u92b7\u552e\u6709\u9650\u7684\u5546\u54c1\uff0c\u5438\u5f15\u5927\u91cf\u7528\u6236\u540c\u6642\u6436\u8cfc\u3002\u7136\u800c\uff0c\u96a8\u8457\u53c3\u8207\u4eba\u6578\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u8655\u7406\u9019\u4e9b\u8acb\u6c42\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002Redis\uff0c\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7406\u60f3\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e7%a7%92%e6%ae%ba%e6%b4%bb%e5%8b%95%e7%9a%84%e6%8c%91%e6%88%b0-rqapKwFGRP\">\u79d2\u6bba\u6d3b\u52d5\u7684\u6311\u6230<\/h2>\n<p>\u79d2\u6bba\u6d3b\u52d5\u7684\u4e3b\u8981\u6311\u6230\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u4f75\u767c\u8acb\u6c42\uff1a\u5728\u79d2\u6bba\u6d3b\u52d5\u958b\u59cb\u7684\u77ac\u9593\uff0c\u6578\u4ee5\u5343\u8a08\u7684\u7528\u6236\u53ef\u80fd\u540c\u6642\u767c\u9001\u8acb\u6c42\uff0c\u9019\u5c0d\u7cfb\u7d71\u7684\u627f\u8f09\u80fd\u529b\u63d0\u51fa\u4e86\u6975\u9ad8\u7684\u8981\u6c42\u3002<\/li>\n<li>\u6578\u64da\u4e00\u81f4\u6027\uff1a\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u5982\u4f55\u78ba\u4fdd\u5eab\u5b58\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/li>\n<li>\u6027\u80fd\u74f6\u9838\uff1a\u5982\u679c\u7cfb\u7d71\u7121\u6cd5\u5feb\u901f\u97ff\u61c9\u7528\u6236\u8acb\u6c42\uff0c\u5c07\u5c0e\u81f4\u7528\u6236\u9ad4\u9a57\u4e0b\u964d\uff0c\u751a\u81f3\u53ef\u80fd\u9020\u6210\u7528\u6236\u6d41\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e7%9a%84%e5%84%aa%e5%8b%a2-rqapKwFGRP\">Redis\u7684\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff0c\u4f7f\u5176\u6210\u70ba\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u80fd\u5920\u6bcf\u79d2\u8655\u7406\u6578\u5341\u842c\u6b21\u8acb\u6c42\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u8f15\u9b06\u61c9\u5c0d\u79d2\u6bba\u6d3b\u52d5\u4e2d\u7684\u9ad8\u4f75\u767c\u8acb\u6c42\u3002<\/li>\n<li><strong>\u6578\u64da\u6301\u4e45\u5316\uff1a<\/strong>Redis\u652f\u6301\u591a\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u5d29\u6f70\u6642\u4fdd\u8b77\u6578\u64da\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis\u7684API\u7c21\u55ae\u660e\u77ad\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u4e26\u5be6\u73fe\u79d2\u6bba\u908f\u8f2f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%ba%e6%96%bcredis%e7%9a%84%e7%a7%92%e6%ae%ba%e5%af%a6%e7%8f%be%e6%96%b9%e6%a1%88-rqapKwFGRP\">\u57fa\u65bcRedis\u7684\u79d2\u6bba\u5be6\u73fe\u65b9\u6848<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u65bcRedis\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\u7684\u57fa\u672c\u6d41\u7a0b\uff1a<\/p>\n<h3 id=\"1-%e5%88%9d%e5%a7%8b%e5%8c%96%e5%ba%ab%e5%ad%98-rqapKwFGRP\">1. \u521d\u59cb\u5316\u5eab\u5b58<\/h3>\n<pre><code>SET stock 100<\/code><\/pre>\n<p>\u5728Redis\u4e2d\u8a2d\u7f6e\u5eab\u5b58\u6578\u91cf\uff0c\u9019\u88e1\u5047\u8a2d\u5eab\u5b58\u70ba100\u3002<\/p>\n<h3 id=\"2-%e8%99%95%e7%90%86%e8%ab%8b%e6%b1%82-rqapKwFGRP\">2. \u8655\u7406\u8acb\u6c42<\/h3>\n<p>\u7576\u7528\u6236\u767c\u9001\u79d2\u6bba\u8acb\u6c42\u6642\uff0c\u5f8c\u7aef\u670d\u52d9\u5668\u9700\u8981\u6aa2\u67e5\u5eab\u5b58\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\ndef seckill(request):\n    # \u6aa2\u67e5\u5eab\u5b58\n    stock = redis.get('stock')\n    if stock and int(stock) &gt; 0:\n        # \u5eab\u5b58\u8db3\u5920\uff0c\u57f7\u884c\u6263\u6e1b\n        redis.decr('stock')\n        return \"\u79d2\u6bba\u6210\u529f\uff01\"\n    else:\n        return \"\u79d2\u6bba\u5931\u6557\uff0c\u5eab\u5b58\u4e0d\u8db3\uff01\"\n<\/code><\/pre>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e6%8e%a7%e5%88%b6-rqapKwFGRP\">3. \u9650\u6d41\u63a7\u5236<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u9650\u6d41\u529f\u80fd\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u983b\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5\u4f86\u9650\u5236\u6bcf\u79d2\u7684\u8acb\u6c42\u6578\u91cf\u3002<\/p>\n<pre><code>\ndef rate_limit():\n    current = redis.get('current_requests')\n    if current and int(current) &gt;= MAX_REQUESTS_PER_SECOND:\n        return False\n    else:\n        redis.incr('current_requests')\n        return True\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-rqapKwFGRP\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bcRedis\u7684\u79d2\u6bba\u529f\u80fd\u5be6\u73fe\u65b9\u6848\u80fd\u5920\u6709\u6548\u61c9\u5c0d\u9ad8\u4f75\u767c\u8acb\u6c42\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u4f01\u696d\u53ef\u4ee5\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\u7372\u5f97\u66f4\u597d\u7684\u7528\u6236\u9ad4\u9a57\u548c\u92b7\u552e\u696d\u7e3e\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5be6\u73fe\u79d2\u6bba\u529f\u80fd\uff0c\u57fa\u65bcRedis\u6280\u8853\uff0c\u63d0\u4f9b\u9ad8\u6548\u80fd\u7684\u79d2\u6bba\u89e3\u6c7a\u65b9\u6848\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u8207\u7528\u6236\u9ad4\u9a57\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-183342","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183342","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=183342"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183342\/revisions"}],"predecessor-version":[{"id":183343,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183342\/revisions\/183343"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}