{"id":168211,"date":"2024-11-06T10:27:19","date_gmt":"2024-11-06T02:27:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168211\/"},"modified":"2024-11-06T10:27:19","modified_gmt":"2024-11-06T02:27:19","slug":"%e7%b6%a0%e8%89%b2%e4%b8%8a%e8%b7%afredis%e6%88%90%e5%8a%9f%e7%8d%b2%e5%8f%96%e9%8e%96%ef%bc%88redis%e7%8d%b2%e5%8f%96%e5%88%b0%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168211\/","title":{"rendered":"\u7da0\u8272\u4e0a\u8defRedis\u6210\u529f\u7372\u53d6\u9396\uff08redis\u7372\u53d6\u5230\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e7%b6%a0%e8%89%b2%e4%b8%8a%e8%b7%afredis%e6%88%90%e5%8a%9f%e7%8d%b2%e5%8f%96%e9%8e%96%ef%bc%88redis%e7%8d%b2%e5%8f%96%e5%88%b0%e9%8e%96%ef%bc%89-TMintWcvAr\">\u7da0\u8272\u4e0a\u8defRedis\u6210\u529f\u7372\u53d6\u9396\uff08redis\u7372\u53d6\u5230\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u4e00\u81f4\u6027\u548c\u8cc7\u6e90\u7ba1\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u5be6\u73fe\u9396\u7684\u529f\u80fd\uff0c\u5f9e\u800c\u4fdd\u8b49\u5728\u591a\u500b\u5ba2\u6236\u7aef\u4e4b\u9593\u7684\u6578\u64da\u4e00\u81f4\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u6210\u529f\u7372\u53d6\u9396\uff0c\u4e26\u4ecb\u7d39\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u548c\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-TMintWcvAr\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5617\u8a66\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\u6642\uff0c\u9396\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u3002Redis\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u6709\u6548\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u901a\u5e38\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8redis%e4%b8%ad%e7%8d%b2%e5%8f%96%e9%8e%96-TMintWcvAr\">\u5982\u4f55\u5728Redis\u4e2d\u7372\u53d6\u9396<\/h2>\n<p>\u5728Redis\u4e2d\u7372\u53d6\u9396\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528SETNX\u547d\u4ee4\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u9396\u9375\u3002<\/li>\n<li>\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u7372\u53d6\u9396\uff1b\u5982\u679c\u5931\u6557\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u5ba2\u6236\u7aef\u6301\u6709\u3002<\/li>\n<li>\u5728\u7372\u53d6\u9396\u5f8c\uff0c\u57f7\u884c\u9700\u8981\u4fdd\u8b77\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u64cd\u4f5c\u5b8c\u6210\u5f8c\uff0c\u522a\u9664\u9396\u9375\u4ee5\u91cb\u653e\u9396\u3002<\/li>\n<\/ol>\n<h3 id=\"setnx%e5%91%bd%e4%bb%a4%e7%a4%ba%e4%be%8b-TMintWcvAr\">SETNX\u547d\u4ee4\u793a\u4f8b<\/h3>\n<pre><code>SETNX lock_key 1\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u5617\u8a66\u8a2d\u7f6e\u540d\u70balock_key\u7684\u9396\u3002\u5982\u679c\u8fd4\u56de\u503c\u70ba1\uff0c\u5247\u8868\u793a\u9396\u5df2\u6210\u529f\u7372\u53d6\uff1b\u5982\u679c\u8fd4\u56de\u503c\u70ba0\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u5ba2\u6236\u7aef\u6301\u6709\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-TMintWcvAr\">\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593<\/h2>\n<p>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u5efa\u8b70\u5728\u7372\u53d6\u9396\u6642\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u6301\u9396\u7684\u5ba2\u6236\u7aef\u5d29\u6f70\uff0c\u9396\u4e5f\u6703\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u91cb\u653e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SET lock_key 1 EX 10 NX\n<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u5728\u7372\u53d6\u9396\u7684\u540c\u6642\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba10\u79d2\u3002\u5982\u679c\u9396\u572810\u79d2\u5167\u672a\u88ab\u91cb\u653e\uff0c\u5247\u6703\u81ea\u52d5\u5931\u6548\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e7%8d%b2%e5%8f%96%e9%8e%96-TMintWcvAr\">\u4f7f\u7528Lua\u8173\u672c\u7372\u53d6\u9396<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fdd\u7372\u53d6\u9396\u548c\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u539f\u5b50\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528Lua\u8173\u672c\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>local 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>\u9019\u6bb5Lua\u8173\u672c\u5c07\u5617\u8a66\u7372\u53d6\u9396\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u78ba\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-TMintWcvAr\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li>\u59cb\u7d42\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<li>\u4f7f\u7528Lua\u8173\u672c\u4f86\u78ba\u4fdd\u7372\u53d6\u9396\u548c\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u539f\u5b50\u6027\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u6642\uff0c\u78ba\u4fdd\u53ea\u6709\u6301\u9396\u7684\u5ba2\u6236\u7aef\u624d\u80fd\u91cb\u653e\u9396\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528Redlock\u7b97\u6cd5\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\uff0c\u7279\u5225\u662f\u5728\u591a\u500bRedis\u5be6\u4f8b\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-TMintWcvAr\">\u7d50\u8ad6<\/h2>\n<p>\u5728Redis\u4e2d\u6210\u529f\u7372\u53d6\u9396\u662f\u4e00\u500b\u91cd\u8981\u7684\u6280\u8853\u6311\u6230\uff0c\u4f46\u901a\u904e\u6b63\u78ba\u7684\u5be6\u73fe\u548c\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u4e26\u4fdd\u8b49\u6578\u64da\u4e00\u81f4\u6027\u3002\u7121\u8ad6\u662f\u5728\u55ae\u500bRedis\u5be6\u4f8b\u9084\u662f\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\uff0c\u7406\u89e3\u548c\u61c9\u7528\u9019\u4e9b\u9396\u5b9a\u6a5f\u5236\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u5be6\u73feRedis\u9396\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u7da0\u8272\u4e0a\u8def\u5982\u4f55\u6210\u529f\u7372\u53d6Redis\u9396\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u80fd\u8207\u8cc7\u6e90\u7ba1\u7406\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u5b89\u5168\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-168211","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168211","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=168211"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168211\/revisions"}],"predecessor-version":[{"id":168212,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168211\/revisions\/168212"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}