{"id":179684,"date":"2024-11-09T03:56:21","date_gmt":"2024-11-08T19:56:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179684\/"},"modified":"2024-11-09T03:56:21","modified_gmt":"2024-11-08T19:56:21","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-redis-%e4%b8%ad%e5%9f%b7%e8%a1%8c-lua-%e8%85%b3%e6%9c%ac%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179684\/","title":{"rendered":"\u5982\u4f55\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-redis-%e4%b8%ad%e5%9f%b7%e8%a1%8c-lua-%e8%85%b3%e6%9c%ac%ef%bc%9f-GklxdTqgUh\">\u5982\u4f55\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c\uff1f<\/h1>\n<p>Redis \u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\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\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u958b\u767c\u8005\u8d8a\u4f86\u8d8a\u9700\u8981\u5728 Redis \u4e2d\u57f7\u884c\u8907\u96dc\u7684\u64cd\u4f5c\u3002\u70ba\u4e86\u6eff\u8db3\u9019\u4e00\u9700\u6c42\uff0cRedis \u63d0\u4f9b\u4e86\u5c0d Lua \u8173\u672c\u7684\u652f\u6301\uff0c\u4f7f\u5f97\u7528\u6236\u53ef\u4ee5\u5728\u4f3a\u670d\u5668\u7aef\u57f7\u884c\u81ea\u5b9a\u7fa9\u7684\u908f\u8f2f\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e4%bd%bf%e7%94%a8-lua-%e8%85%b3%e6%9c%ac%ef%bc%9f-GklxdTqgUh\">\u70ba\u4ec0\u9ebc\u4f7f\u7528 Lua \u8173\u672c\uff1f<\/h2>\n<p>\u4f7f\u7528 Lua \u8173\u672c\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u539f\u5b50\u6027\uff1a<\/strong>Lua \u8173\u672c\u5728 Redis \u4e2d\u662f\u539f\u5b50\u57f7\u884c\u7684\uff0c\u9019\u610f\u5473\u8457\u5728\u8173\u672c\u57f7\u884c\u671f\u9593\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u7121\u6cd5\u5c0d\u6578\u64da\u9032\u884c\u4fee\u6539\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\uff1a<\/strong>\u5c07\u591a\u500b\u64cd\u4f5c\u5c01\u88dd\u5728\u4e00\u500b\u8173\u672c\u4e2d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u5ba2\u6236\u7aef\u8207\u4f3a\u670d\u5668\u4e4b\u9593\u7684\u5f80\u8fd4\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>Lua \u8a9e\u8a00\u7c21\u55ae\u6613\u5b78\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u7de8\u5beb\u8907\u96dc\u7684\u908f\u8f2f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-redis-%e4%b8%ad%e5%9f%b7%e8%a1%8c-lua-%e8%85%b3%e6%9c%ac-GklxdTqgUh\">\u5982\u4f55\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c<\/h2>\n<h3 id=\"1-%e7%b7%a8%e5%af%ab-lua-%e8%85%b3%e6%9c%ac-GklxdTqgUh\">1. \u7de8\u5beb Lua \u8173\u672c<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u7de8\u5beb\u4e00\u500b Lua \u8173\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u8a72\u8173\u672c\u5c07\u5169\u500b\u9375\u7684\u503c\u76f8\u52a0\u4e26\u5c07\u7d50\u679c\u5b58\u5132\u5230\u53e6\u4e00\u500b\u9375\u4e2d\uff1a<\/p>\n<pre><code>\nlocal key1 = KEYS[1]\nlocal key2 = KEYS[2]\nlocal resultKey = KEYS[3]\n\nlocal value1 = tonumber(redis.call('GET', key1) or 0)\nlocal value2 = tonumber(redis.call('GET', key2) or 0)\n\nlocal result = value1 + value2\nredis.call('SET', resultKey, result)\n\nreturn result\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-eval-%e5%91%bd%e4%bb%a4%e5%9f%b7%e8%a1%8c%e8%85%b3%e6%9c%ac-GklxdTqgUh\">2. \u4f7f\u7528 EVAL \u547d\u4ee4\u57f7\u884c\u8173\u672c<\/h3>\n<p>\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EVAL<\/code> \u547d\u4ee4\u3002\u8a72\u547d\u4ee4\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nEVAL script numkeys key [key ...] arg [arg ...]\n<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>script<\/code> \u662f Lua \u8173\u672c\u7684\u5167\u5bb9\uff0c<code>numkeys<\/code> \u662f\u9375\u7684\u6578\u91cf\uff0c<code>key<\/code> \u662f\u8981\u64cd\u4f5c\u7684\u9375\uff0c<code>arg<\/code> \u662f\u50b3\u905e\u7d66\u8173\u672c\u7684\u53c3\u6578\u3002<\/p>\n<p>\u5047\u8a2d\u6211\u5011\u5c07\u4e0a\u9762\u7684 Lua \u8173\u672c\u4fdd\u5b58\u70ba\u4e00\u500b\u8b8a\u91cf\uff0c\u4e26\u5e0c\u671b\u5c07 <code>key1<\/code> \u548c <code>key2<\/code> \u7684\u503c\u76f8\u52a0\uff0c\u4e26\u5c07\u7d50\u679c\u5b58\u5132\u5230 <code>resultKey<\/code> \u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u9019\u6a23\u57f7\u884c\uff1a<\/p>\n<pre><code>\nEVAL \"local key1 = KEYS[1]; local key2 = KEYS[2]; local resultKey = KEYS[3]; local value1 = tonumber(redis.call('GET', key1) or 0); local value2 = tonumber(redis.call('GET', key2) or 0); local result = value1 + value2; redis.call('SET', resultKey, result); return result;\" 3 key1 key2 resultKey\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-script-load-%e5%91%bd%e4%bb%a4%e5%8a%a0%e8%bc%89%e8%85%b3%e6%9c%ac-GklxdTqgUh\">3. \u4f7f\u7528 SCRIPT LOAD \u547d\u4ee4\u52a0\u8f09\u8173\u672c<\/h3>\n<p>\u5982\u679c\u8173\u672c\u8f03\u9577\uff0c\u5efa\u8b70\u4f7f\u7528 <code>SCRIPT LOAD<\/code> \u547d\u4ee4\u5c07\u8173\u672c\u52a0\u8f09\u5230 Redis \u4e2d\uff0c\u7136\u5f8c\u4f7f\u7528 <code>EVALSHA<\/code> \u547d\u4ee4\u57f7\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\uff0c\u56e0\u70ba Redis \u53ea\u9700\u52a0\u8f09\u4e00\u6b21\u8173\u672c\uff1a<\/p>\n<pre><code>\nSCRIPT LOAD \"local key1 = KEYS[1]; local key2 = KEYS[2]; local resultKey = KEYS[3]; local value1 = tonumber(redis.call('GET', key1) or 0); local value2 = tonumber(redis.call('GET', key2) or 0); local result = value1 + value2; redis.call('SET', resultKey, result); return result;\"\n<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0cRedis \u6703\u8fd4\u56de\u4e00\u500b SHA1 \u54c8\u5e0c\u503c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u8a72\u54c8\u5e0c\u503c\u4f86\u57f7\u884c\u8173\u672c\uff1a<\/p>\n<pre><code>\nEVALSHA  3 key1 key2 resultKey\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GklxdTqgUh\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 Lua \u8173\u672c\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u8173\u672c\u7684\u57f7\u884c\u6642\u9593\u61c9\u8a72\u76e1\u91cf\u63a7\u5236\u5728\u5408\u7406\u7bc4\u570d\u5167\uff0c\u904e\u9577\u7684\u57f7\u884c\u6642\u9593\u53ef\u80fd\u6703\u5f71\u97ff Redis \u7684\u6027\u80fd\u3002<\/li>\n<li>Lua \u8173\u672c\u4e2d\u7684\u932f\u8aa4\u6703\u5c0e\u81f4\u6574\u500b\u64cd\u4f5c\u5931\u6557\uff0c\u56e0\u6b64\u5728\u7de8\u5beb\u8173\u672c\u6642\u9700\u8981\u8b39\u614e\u8655\u7406\u932f\u8aa4\u3002<\/li>\n<li>\u907f\u514d\u5728\u8173\u672c\u4e2d\u4f7f\u7528\u963b\u585e\u64cd\u4f5c\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4 Redis \u7684\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GklxdTqgUh\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5be6\u73fe\u8907\u96dc\u7684\u6578\u64da\u64cd\u4f5c\u3002\u901a\u904e\u4f7f\u7528 <code>EVAL<\/code> \u548c <code>SCRIPT LOAD<\/code> \u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u5728\u4f3a\u670d\u5668\u7aef\u57f7\u884c\u81ea\u5b9a\u7fa9\u908f\u8f2f\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u5730\u5340\uff0c<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u63d0\u4f9b\u4e86\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u57f7\u884c Lua \u8173\u672c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u5be6\u73fe\u539f\u5b50\u64cd\u4f5c\uff0c\u7c21\u5316\u8907\u96dc\u908f\u8f2f\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-179684","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179684","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=179684"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179684\/revisions"}],"predecessor-version":[{"id":179685,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179684\/revisions\/179685"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}