{"id":169113,"date":"2024-11-06T18:28:22","date_gmt":"2024-11-06T10:28:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169113\/"},"modified":"2024-11-06T18:28:23","modified_gmt":"2024-11-06T10:28:23","slug":"%e7%a7%92%e6%ae%ba%e5%a0%b4%e6%99%af%e4%b8%8b%e7%9a%84redis%e5%84%aa%e5%8c%96%e6%96%b9%e6%b3%95%ef%bc%88redis%e7%a7%92%e6%ae%ba%e6%96%b9%e6%b3%95%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169113\/","title":{"rendered":"\u79d2\u6bba\u5834\u666f\u4e0b\u7684Redis\u512a\u5316\u65b9\u6cd5\uff08redis\u79d2\u6bba\u65b9\u6cd5\uff09"},"content":{"rendered":"<h1 id=\"%e7%a7%92%e6%ae%ba%e5%a0%b4%e6%99%af%e4%b8%8b%e7%9a%84redis%e5%84%aa%e5%8c%96%e6%96%b9%e6%b3%95%ef%bc%88redis%e7%a7%92%e6%ae%ba%e6%96%b9%e6%b3%95%ef%bc%89-GebULCSVUR\">\u79d2\u6bba\u5834\u666f\u4e0b\u7684Redis\u512a\u5316\u65b9\u6cd5\uff08redis\u79d2\u6bba\u65b9\u6cd5\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u96fb\u5b50\u5546\u52d9\u74b0\u5883\u4e2d\uff0c\u79d2\u6bba\u6d3b\u52d5\u5df2\u6210\u70ba\u5438\u5f15\u9867\u5ba2\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7136\u800c\uff0c\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u9ad8\u4e26\u767c\u8acb\u6c42\u6210\u70ba\u4e86\u5546\u5bb6\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\u800c\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u79d2\u6bba\u5834\u666f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728\u79d2\u6bba\u5834\u666f\u4e0b\uff0c\u5982\u4f55\u5c0dRedis\u9032\u884c\u512a\u5316\uff0c\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e5%89%87-GebULCSVUR\">1. \u4f7f\u7528Redis\u7684\u57fa\u672c\u539f\u5247<\/h2>\n<p>\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\uff0cRedis\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u4f5c\u70ba\u7de9\u5b58\u5c64\uff0c\u5b58\u5132\u5546\u54c1\u7684\u5eab\u5b58\u6578\u91cf\u548c\u7528\u6236\u7684\u8acb\u6c42\u72c0\u614b\u3002\u70ba\u4e86\u78ba\u4fdd\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u539f\u5247\uff1a<\/p>\n<ul>\n<li>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\uff1a\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684Redis\u6578\u64da\u7d50\u69cb\uff0c\u5982\u4f7f\u7528\u5217\u8868\uff08List\uff09\u4f86\u5b58\u5132\u7528\u6236\u8acb\u6c42\uff0c\u4f7f\u7528\u54c8\u5e0c\uff08Hash\uff09\u4f86\u5b58\u5132\u5546\u54c1\u4fe1\u606f\u3002<\/li>\n<li>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff1a\u5c0d\u65bc\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u61c9\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u4ee5\u91cb\u653e\u5167\u5b58\u3002<\/li>\n<li>\u4f7f\u7528\u6301\u4e45\u5316\u6a5f\u5236\uff1a\u96d6\u7136Redis\u4e3b\u8981\u7528\u65bc\u7de9\u5b58\uff0c\u4f46\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\uff0c\u6578\u64da\u7684\u6301\u4e45\u5316\u4e5f\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e9%99%90%e6%b5%81%e8%88%87%e6%8e%92%e9%9a%8a%e6%a9%9f%e5%88%b6-GebULCSVUR\">2. \u9650\u6d41\u8207\u6392\u968a\u6a5f\u5236<\/h2>\n<p>\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\uff0c\u70ba\u4e86\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\uff0c\u53ef\u4ee5\u63a1\u7528\u9650\u6d41\u548c\u6392\u968a\u6a5f\u5236\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\n# \u4f7f\u7528Redis\u7684INCR\u547d\u4ee4\u4f86\u9650\u5236\u8acb\u6c42\u6578\u91cf\nlocal limit = redis.call('INCR', 'request_count')\nif limit &gt; max_requests then\n    return false -- \u8d85\u904e\u9650\u5236\nend\nreturn true -- \u5141\u8a31\u8acb\u6c42\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u901a\u904eINCR\u547d\u4ee4\u4f86\u8a08\u7b97\u7576\u524d\u8acb\u6c42\u6578\u91cf\uff0c\u7576\u8acb\u6c42\u6578\u91cf\u8d85\u904e\u8a2d\u5b9a\u7684\u6700\u5927\u503c\u6642\uff0c\u62d2\u7d55\u5f8c\u7e8c\u8acb\u6c42\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u540c\u4e00\u6642\u9593\u5167\u7684\u8acb\u6c42\u6578\u91cf\uff0c\u6e1b\u5c11\u7cfb\u7d71\u58d3\u529b\u3002<\/p>\n<h2 id=\"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-GebULCSVUR\">3. \u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u539f\u5b50\u64cd\u4f5c<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528Lua\u8173\u672c\u53ef\u4ee5\u78ba\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal stock = redis.call('GET', 'product_stock')\nif tonumber(stock) &gt; 0 then\n    redis.call('DECR', 'product_stock')\n    return true -- \u8cfc\u8cb7\u6210\u529f\nelse\n    return false -- \u5eab\u5b58\u4e0d\u8db3\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5Lua\u8173\u672c\u9996\u5148\u6aa2\u67e5\u5eab\u5b58\u662f\u5426\u5927\u65bc0\uff0c\u5982\u679c\u662f\uff0c\u5247\u6e1b\u5c11\u5eab\u5b58\u4e26\u8fd4\u56de\u6210\u529f\uff1b\u5426\u5247\u8fd4\u56de\u5eab\u5b58\u4e0d\u8db3\u7684\u63d0\u793a\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\uff0c\u5eab\u5b58\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<h2 id=\"4-%e6%95%b8%e6%93%9a%e5%88%86%e7%89%87%e8%88%87%e9%9b%86%e7%be%a4%e9%83%a8%e7%bd%b2-GebULCSVUR\">4. \u6578\u64da\u5206\u7247\u8207\u96c6\u7fa4\u90e8\u7f72<\/h2>\n<p>\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u55ae\u4e00Redis\u5be6\u4f8b\u53ef\u80fd\u7121\u6cd5\u627f\u53d7\u6240\u6709\u8acb\u6c42\u3002\u6b64\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528Redis\u96c6\u7fa4\u6216\u6578\u64da\u5206\u7247\u6280\u8853\u3002\u901a\u904e\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500bRedis\u5be6\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e8%88%87%e8%aa%bf%e5%84%aa-GebULCSVUR\">5. \u76e3\u63a7\u8207\u8abf\u512a<\/h2>\n<p>\u6700\u5f8c\uff0c\u5c0dRedis\u7684\u76e3\u63a7\u548c\u8abf\u512a\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u81ea\u5e36\u7684\u76e3\u63a7\u5de5\u5177\u6216\u7b2c\u4e09\u65b9\u5de5\u5177\u4f86\u76e3\u63a7\u6027\u80fd\u6307\u6a19\uff0c\u5982\u5167\u5b58\u4f7f\u7528\u7387\u3001\u8acb\u6c42\u5ef6\u9072\u7b49\u3002\u6839\u64da\u76e3\u63a7\u6578\u64da\uff0c\u53ca\u6642\u8abf\u6574Redis\u7684\u914d\u7f6e\u53c3\u6578\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GebULCSVUR\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u79d2\u6bba\u5834\u666f\u4e0b\uff0cRedis\u7684\u512a\u5316\u65b9\u6cd5\u5305\u62ec\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u3001\u5be6\u65bd\u9650\u6d41\u8207\u6392\u968a\u6a5f\u5236\u3001\u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u539f\u5b50\u64cd\u4f5c\u3001\u90e8\u7f72Redis\u96c6\u7fa4\u4ee5\u53ca\u9032\u884c\u6301\u7e8c\u7684\u76e3\u63a7\u8207\u8abf\u512a\u3002\u9019\u4e9b\u65b9\u6cd5\u80fd\u5920\u6709\u6548\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\uff0c\u78ba\u4fdd\u79d2\u6bba\u6d3b\u52d5\u7684\u9806\u5229\u9032\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">VPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u79d2\u6bba\u5834\u666f\u4e0b\u7684Redis\u512a\u5316\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u9ad8\u4e26\u767c\u4e0b\u7684\u7a69\u5b9a\u6027\u8207\u97ff\u61c9\u901f\u5ea6\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-169113","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169113","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=169113"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169113\/revisions"}],"predecessor-version":[{"id":169114,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169113\/revisions\/169114"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}