{"id":184550,"date":"2024-11-10T14:09:17","date_gmt":"2024-11-10T06:09:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/184550\/"},"modified":"2024-11-10T14:09:19","modified_gmt":"2024-11-10T06:09:19","slug":"%e4%bd%bf%e7%94%a8redis%e8%85%b3%e6%9c%aceval%e6%87%89%e7%94%a8%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%ef%bc%88redis%e8%85%b3%e6%9c%aceval%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/184550\/","title":{"rendered":"\u4f7f\u7528Redis\u8173\u672ceval\u61c9\u7528\u5206\u5e03\u5f0f\u9396\uff08redis\u8173\u672ceval\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e8%85%b3%e6%9c%aceval%e6%87%89%e7%94%a8%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-pqAOIEJQYM\">\u4f7f\u7528Redis\u8173\u672ceval\u61c9\u7528\u5206\u5e03\u5f0f\u9396<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u6280\u8853\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5728\u591a\u500b\u5be6\u4f8b\u4e4b\u9593\u5354\u8abf\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u7684\u8173\u672c\u529f\u80fd\uff08eval\uff09\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%ef%bc%9f-pqAOIEJQYM\">\u4ec0\u9ebc\u662f\u5206\u5e03\u5f0f\u9396\uff1f<\/h2>\n<p>\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u5fc5\u9808\u7b49\u5f85\uff0c\u76f4\u5230\u9396\u88ab\u91cb\u653e\u3002\u9019\u5728\u8655\u7406\u9700\u8981\u539f\u5b50\u6027\u64cd\u4f5c\u7684\u60c5\u6cc1\u4e0b\u7279\u5225\u91cd\u8981\uff0c\u4f8b\u5982\u5728\u6578\u64da\u5eab\u4e2d\u66f4\u65b0\u8a18\u9304\u6216\u57f7\u884c\u6279\u91cf\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%84%aa%e5%8b%a2-pqAOIEJQYM\">Redis\u7684\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li>\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\uff0c\u9069\u5408\u9ad8\u4e26\u767c\u5834\u666f\u3002<\/li>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002<\/li>\n<li>\u63d0\u4f9b\u539f\u5b50\u64cd\u4f5c\uff0c\u80fd\u5920\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e8%85%b3%e6%9c%aceval%e5%af%a6%e7%8f%be%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-pqAOIEJQYM\">\u4f7f\u7528Redis\u8173\u672ceval\u5be6\u73fe\u5206\u5e03\u5f0f\u9396<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86Lua\u8173\u672c\u7684\u652f\u6301\uff0c\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u8907\u96dc\u7684\u908f\u8f2f\uff0c\u800c\u4e0d\u5fc5\u5c07\u6578\u64da\u50b3\u8f38\u5230\u5ba2\u6236\u7aef\u3002\u9019\u5c0d\u65bc\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u975e\u5e38\u6709\u7528\uff0c\u56e0\u70ba\u6211\u5011\u53ef\u4ee5\u5c07\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u908f\u8f2f\u5c01\u88dd\u5728\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\u4e2d\u3002<\/p>\n<h3 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e9%82%8f%e8%bc%af-pqAOIEJQYM\">\u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u908f\u8f2f<\/h3>\n<p>\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u908f\u8f2f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5617\u8a66\u7372\u53d6\u9396\uff0c\u5982\u679c\u6210\u529f\u5247\u57f7\u884c\u64cd\u4f5c\u3002<\/li>\n<li>\u5982\u679c\u7372\u53d6\u9396\u5931\u6557\uff0c\u5247\u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u5f8c\u91cd\u8a66\u3002<\/li>\n<li>\u64cd\u4f5c\u5b8c\u6210\u5f8c\u91cb\u653e\u9396\u3002<\/li>\n<\/ol>\n<h3 id=\"lua%e8%85%b3%e6%9c%ac%e7%a4%ba%e4%be%8b-pqAOIEJQYM\">Lua\u8173\u672c\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u8173\u672ceval\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal lock_key = KEYS[1]\nlocal lock_value = ARGV[1]\nlocal expire_time = ARGV[2]\n\nif redis.call(\"SETNX\", lock_key, lock_value) == 1 then\n    redis.call(\"EXPIRE\", lock_key, expire_time)\n    return 1\nelse\n    return 0\nend\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86SETNX\u547d\u4ee4\u4f86\u5617\u8a66\u7372\u53d6\u9396\u3002\u5982\u679c\u9396\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u9396\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1b\u5982\u679c\u9396\u5df2\u5b58\u5728\uff0c\u5247\u8fd4\u56de0\u8868\u793a\u7372\u53d6\u5931\u6557\u3002<\/p>\n<h3 id=\"%e9%87%8b%e6%94%be%e9%8e%96%e7%9a%84lua%e8%85%b3%e6%9c%ac-pqAOIEJQYM\">\u91cb\u653e\u9396\u7684Lua\u8173\u672c<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e5f\u9700\u8981\u78ba\u4fdd\u539f\u5b50\u6027\uff0c\u4ee5\u4e0b\u662f\u91cb\u653e\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal lock_key = KEYS[1]\nlocal lock_value = ARGV[1]\n\nif redis.call(\"GET\", lock_key) == lock_value then\n    return redis.call(\"DEL\", lock_key)\nelse\n    return 0\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u9996\u5148\u6aa2\u67e5\u7576\u524d\u9396\u7684\u503c\u662f\u5426\u8207\u91cb\u653e\u9396\u6642\u7684\u503c\u76f8\u540c\uff0c\u53ea\u6709\u76f8\u540c\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u522a\u9664\u9396\uff0c\u5f9e\u800c\u907f\u514d\u8aa4\u91cb\u653e\u5176\u4ed6\u9032\u7a0b\u7684\u9396\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-pqAOIEJQYM\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u9396\u7684\u904e\u671f\u6642\u9593\u61c9\u6839\u64da\u696d\u52d9\u9700\u6c42\u5408\u7406\u8a2d\u7f6e\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u6642\uff0c\u5fc5\u9808\u78ba\u8a8d\u9396\u7684\u64c1\u6709\u8005\uff0c\u4ee5\u907f\u514d\u8aa4\u91cb\u653e\u3002<\/li>\n<li>\u8003\u616e\u5230\u7db2\u7d61\u5ef6\u9072\u548c\u6545\u969c\u60c5\u6cc1\uff0c\u61c9\u8a2d\u8a08\u91cd\u8a66\u6a5f\u5236\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pqAOIEJQYM\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u8173\u672ceval\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u53ef\u9760\u7684\u65b9\u6cd5\u3002\u901a\u904e\u5c07\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u908f\u8f2f\u5c01\u88dd\u5728Lua\u8173\u672c\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u78ba\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u548c\u4e00\u81f4\u6027\u3002\u9019\u5c0d\u65bc\u9700\u8981\u9ad8\u4e26\u767c\u548c\u6578\u64da\u4e00\u81f4\u6027\u7684\u61c9\u7528\u5834\u666f\u5c24\u70ba\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u8173\u672ceval\u5be6\u73fe\u9ad8\u6548\u7684\u5206\u5e03\u5f0f\u9396\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\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-184550","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184550","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=184550"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184550\/revisions"}],"predecessor-version":[{"id":184551,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184550\/revisions\/184551"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=184550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=184550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=184550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}