{"id":168063,"date":"2024-11-06T09:12:27","date_gmt":"2024-11-06T01:12:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168063\/"},"modified":"2024-11-06T09:12:27","modified_gmt":"2024-11-06T01:12:27","slug":"%e9%9d%88%e6%b4%bb%e7%9a%84redis-%e7%aa%81%e7%a0%b4%e6%a2%9d%e4%bb%b6%e7%9a%84%e9%99%90%e5%88%b6%ef%bc%88redis-%e6%a2%9d%e4%bb%b6%e8%ae%8a%e6%9b%b4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168063\/","title":{"rendered":"\u9748\u6d3b\u7684Redis \u7a81\u7834\u689d\u4ef6\u7684\u9650\u5236\uff08redis \u689d\u4ef6\u8b8a\u66f4\uff09"},"content":{"rendered":"<h1 id=\"%e9%9d%88%e6%b4%bb%e7%9a%84redis-%e7%aa%81%e7%a0%b4%e6%a2%9d%e4%bb%b6%e7%9a%84%e9%99%90%e5%88%b6%ef%bc%88redis-%e6%a2%9d%e4%bb%b6%e8%ae%8a%e6%9b%b4%ef%bc%89-YxqURTJmBF\">\u9748\u6d3b\u7684Redis \u7a81\u7834\u689d\u4ef6\u7684\u9650\u5236\uff08redis \u689d\u4ef6\u8b8a\u66f4\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u5b83\u7684\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u8868\u73fe\u51fa\u8272\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u958b\u767c\u8005\u5e38\u5e38\u9700\u8981\u5c0d Redis \u4e2d\u7684\u689d\u4ef6\u9032\u884c\u8b8a\u66f4\uff0c\u4ee5\u9069\u61c9\u65b0\u7684\u696d\u52d9\u908f\u8f2f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u9748\u6d3b\u5730\u7a81\u7834 Redis \u7684\u689d\u4ef6\u9650\u5236\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-YxqURTJmBF\">Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\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\u3002\u5b83\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6027\u80fd\uff1aRedis \u53ef\u4ee5\u6bcf\u79d2\u8655\u7406\u6578\u767e\u842c\u6b21\u8acb\u6c42\u3002<\/li>\n<li>\u6301\u4e45\u6027\uff1a\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\u3002<\/li>\n<li>\u9748\u6d3b\u6027\uff1a\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9069\u5408\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e7%9a%84%e6%a2%9d%e4%bb%b6%e9%99%90%e5%88%b6-YxqURTJmBF\">Redis \u7684\u689d\u4ef6\u9650\u5236<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u689d\u4ef6\u9650\u5236\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u985e\u578b\u7684\u9650\u5236\uff1a\u4e0d\u540c\u7684\u6578\u64da\u7d50\u69cb\u6709\u4e0d\u540c\u7684\u64cd\u4f5c\u9650\u5236\u3002<\/li>\n<li>\u539f\u5b50\u6027\u64cd\u4f5c\uff1a\u67d0\u4e9b\u64cd\u4f5c\u9700\u8981\u5728\u55ae\u4e00\u539f\u5b50\u64cd\u4f5c\u4e2d\u5b8c\u6210\uff0c\u5426\u5247\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<li>\u904e\u671f\u6642\u9593\u7684\u8a2d\u7f6e\uff1aRedis \u652f\u6301\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u4f46\u9019\u4e5f\u53ef\u80fd\u5f71\u97ff\u6578\u64da\u7684\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%9d%88%e6%b4%bb%e7%9a%84%e6%a2%9d%e4%bb%b6%e8%ae%8a%e6%9b%b4%e6%96%b9%e6%b3%95-YxqURTJmBF\">\u9748\u6d3b\u7684\u689d\u4ef6\u8b8a\u66f4\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u9748\u6d3b\u5730\u7a81\u7834\u9019\u4e9b\u689d\u4ef6\u9650\u5236\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-lua-%e8%85%b3%e6%9c%ac-YxqURTJmBF\">1. \u4f7f\u7528 Lua \u8173\u672c<\/h3>\n<p>Redis \u652f\u6301\u4f7f\u7528 Lua \u8173\u672c\u4f86\u57f7\u884c\u8907\u96dc\u7684\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u5c07\u591a\u500b\u64cd\u4f5c\u5408\u4f75\u70ba\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Lua \u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal current_value = redis.call('GET', KEYS[1])\nif current_value then\n    local new_value = tonumber(current_value) + tonumber(ARGV[1])\n    redis.call('SET', KEYS[1], new_value)\n    return new_value\nelse\n    return nil\nend\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5f9e Redis \u4e2d\u7372\u53d6\u4e00\u500b\u9375\u7684\u503c\uff0c\u7136\u5f8c\u5c07\u5176\u589e\u52a0\u4e00\u500b\u6307\u5b9a\u7684\u6578\u91cf\uff0c\u6700\u5f8c\u5c07\u65b0\u503c\u5b58\u56de Redis\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-redis-%e4%ba%8b%e5%8b%99-YxqURTJmBF\">2. \u4f7f\u7528 Redis \u4e8b\u52d9<\/h3>\n<p>Redis \u7684\u4e8b\u52d9\u529f\u80fd\u5141\u8a31\u958b\u767c\u8005\u5c07\u591a\u500b\u547d\u4ee4\u6253\u5305\u5728\u4e00\u8d77\uff0c\u78ba\u4fdd\u5b83\u5011\u4ee5\u539f\u5b50\u65b9\u5f0f\u57f7\u884c\u3002\u9019\u53ef\u4ee5\u901a\u904e MULTI \u548c EXEC \u547d\u4ee4\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\nMULTI\nSET key1 \"value1\"\nSET key2 \"value2\"\nEXEC\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u8981\u9ebc\u6240\u6709\u547d\u4ee4\u90fd\u57f7\u884c\u6210\u529f\uff0c\u8981\u9ebc\u90fd\u4e0d\u57f7\u884c\uff0c\u5f9e\u800c\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e6%9b%b4%e6%96%b0-YxqURTJmBF\">3. \u4f7f\u7528\u689d\u4ef6\u66f4\u65b0<\/h3>\n<p>Redis \u4e5f\u652f\u6301\u689d\u4ef6\u66f4\u65b0\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u6839\u64da\u7576\u524d\u503c\u4f86\u6c7a\u5b9a\u662f\u5426\u57f7\u884c\u66f4\u65b0\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 WATCH \u547d\u4ee4\u4f86\u76e3\u8996\u4e00\u500b\u9375\u7684\u503c\uff0c\u7136\u5f8c\u5728\u57f7\u884c\u66f4\u65b0\u4e4b\u524d\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u672a\u6539\u8b8a\uff1a<\/p>\n<pre><code>\nWATCH key\nlocal current_value = redis.call('GET', key)\nif current_value == \"expected_value\" then\n    redis.call('SET', key, \"new_value\")\nend\nUNWATCH\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-YxqURTJmBF\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u8655\u7406\u5404\u7a2e\u6578\u64da\u9700\u6c42\u7684\u7406\u60f3\u9078\u64c7\u3002\u901a\u904e\u4f7f\u7528 Lua \u8173\u672c\u3001\u4e8b\u52d9\u548c\u689d\u4ef6\u66f4\u65b0\u7b49\u6280\u8853\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7a81\u7834 Redis \u7684\u689d\u4ef6\u9650\u5236\uff0c\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u696d\u52d9\u908f\u8f2f\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\uff0c\u9084\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u670d\u52d9\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u9748\u6d3b\u7684Redis\u689d\u4ef6\u8b8a\u66f4\uff0c\u7a81\u7834\u50b3\u7d71\u9650\u5236\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u5be6\u73fe\u66f4\u667a\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-168063","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168063","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=168063"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168063\/revisions"}],"predecessor-version":[{"id":168064,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168063\/revisions\/168064"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}