{"id":172275,"date":"2024-11-07T11:46:20","date_gmt":"2024-11-07T03:46:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172275\/"},"modified":"2024-11-07T11:46:21","modified_gmt":"2024-11-07T03:46:21","slug":"%e8%ae%93redis%e9%8e%96%e5%8f%96%e5%be%97%e6%9b%b4%e9%ab%98%e7%a9%a9%e5%ae%9a%e6%80%a7%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%ef%bc%88redis%e9%8e%96%e8%a8%ad","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172275\/","title":{"rendered":"\u8b93Redis\u9396\u53d6\u5f97\u66f4\u9ad8\u7a69\u5b9a\u6027\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff08redis\u9396\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff09"},"content":{"rendered":"<h1 id=\"%e8%ae%93redis%e9%8e%96%e5%8f%96%e5%be%97%e6%9b%b4%e9%ab%98%e7%a9%a9%e5%ae%9a%e6%80%a7%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-ayArbfacRk\">\u8b93Redis\u9396\u53d6\u5f97\u66f4\u9ad8\u7a69\u5b9a\u6027\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u7ba1\u7406\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u5f37\u5927\u7684\u9396\u6a5f\u5236\u3002\u7136\u800c\uff0c\u82e5\u9396\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u7684\u7a69\u5b9a\u6027\u4e0b\u964d\uff0c\u9032\u800c\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5408\u7406\u8a2d\u7f6eRedis\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u63d0\u9ad8\u5176\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ayArbfacRk\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u9396\u901a\u5e38\u662f\u901a\u904eSETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u7684\u3002\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u9375\uff0c\u53ea\u6709\u7576\u8a72\u9375\u4e0d\u5b58\u5728\u6642\uff0c\u8a2d\u7f6e\u624d\u6703\u6210\u529f\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u5ba2\u6236\u7aef\u80fd\u5920\u7372\u53d6\u9396\u3002<\/p>\n<pre><code>SETNX lock_key unique_lock_value\n<\/code><\/pre>\n<p>\u4e00\u65e6\u9396\u88ab\u7372\u53d6\uff0c\u5ba2\u6236\u7aef\u53ef\u4ee5\u57f7\u884c\u9700\u8981\u4fdd\u8b77\u7684\u64cd\u4f5c\u3002\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u901a\u5e38\u6703\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u5ba2\u6236\u7aef\u5728\u64cd\u4f5c\u904e\u7a0b\u4e2d\u5d29\u6f70\uff0c\u9396\u4e5f\u4e0d\u6703\u6c38\u4e45\u5b58\u5728\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u4ecd\u7136\u53ef\u4ee5\u7372\u53d6\u9396\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-ayArbfacRk\">\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593<\/h2>\n<p>\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u662f\u4e00\u500b\u95dc\u9375\u7684\u6c7a\u7b56\uff0c\u904e\u671f\u6642\u9593\u904e\u77ed\u53ef\u80fd\u5c0e\u81f4\u9396\u5728\u64cd\u4f5c\u672a\u5b8c\u6210\u6642\u81ea\u52d5\u91cb\u653e\uff0c\u800c\u904e\u671f\u6642\u9593\u904e\u9577\u5247\u53ef\u80fd\u5c0e\u81f4\u5176\u4ed6\u5ba2\u6236\u7aef\u7121\u6cd5\u7372\u53d6\u9396\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u8003\u91cf\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u64cd\u4f5c\u7684\u9810\u671f\u6642\u9593\uff1a<\/strong>\u6839\u64da\u64cd\u4f5c\u7684\u8907\u96dc\u6027\u548c\u57f7\u884c\u6642\u9593\u4f86\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u5982\u679c\u64cd\u4f5c\u901a\u5e38\u9700\u89815\u79d2\u9418\uff0c\u90a3\u9ebc\u53ef\u4ee5\u8003\u616e\u5c07\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u70ba10\u79d2\u9418\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u91cd\u8a66\u6a5f\u5236\uff1a<\/strong>\u5728\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u6642\uff0c\u8003\u616e\u5230\u91cd\u8a66\u6a5f\u5236\u7684\u5b58\u5728\u3002\u5982\u679c\u9396\u5728\u904e\u671f\u5f8c\u88ab\u91cb\u653e\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u61c9\u80fd\u5920\u5feb\u901f\u7372\u53d6\u9396\u4e26\u91cd\u8a66\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u8ca0\u8f09\uff1a<\/strong>\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u66f4\u9577\u7684\u6642\u9593\u4f86\u5b8c\u6210\uff0c\u56e0\u6b64\u61c9\u9069\u7576\u5ef6\u9577\u904e\u671f\u6642\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e7%9a%84redlock%e7%ae%97%e6%b3%95-ayArbfacRk\">\u4f7f\u7528Redis\u7684Redlock\u7b97\u6cd5<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8\u9396\u7684\u7a69\u5b9a\u6027\uff0cRedis\u9084\u63d0\u4f9b\u4e86\u4e00\u7a2e\u540d\u70baRedlock\u7684\u5206\u4f48\u5f0f\u9396\u7b97\u6cd5\u3002Redlock\u7b97\u6cd5\u901a\u904e\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e0a\u8a2d\u7f6e\u9396\u4f86\u78ba\u4fdd\u9396\u7684\u53ef\u9760\u6027\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u55ae\u9ede\u6545\u969c\uff0c\u4e26\u63d0\u9ad8\u9396\u7684\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5728\u4f7f\u7528Redlock\u6642\uff0c\u904e\u671f\u6642\u9593\u7684\u8a2d\u7f6e\u540c\u6a23\u91cd\u8981\u3002\u6839\u64daRedlock\u7684\u8a2d\u8a08\uff0c\u904e\u671f\u6642\u9593\u61c9\u8a72\u8a2d\u7f6e\u70ba\u64cd\u4f5c\u9810\u671f\u6642\u9593\u7684\u5169\u500d\uff0c\u4ee5\u78ba\u4fdd\u5728\u64cd\u4f5c\u904e\u7a0b\u4e2d\u9396\u4e0d\u6703\u88ab\u610f\u5916\u91cb\u653e\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-ayArbfacRk\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Redis\u4e2d\u8a2d\u7f6e\u9396\u53ca\u5176\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>\nfunction acquireLock($redis, $lockKey, $lockValue, $expire) {\n    $result = $redis-&gt;set($lockKey, $lockValue, ['nx', 'ex' =&gt; $expire]);\n    return $result;\n}\n\n$redis = new Redis();\n$redis-&gt;connect('127.0.0.1', 6379);\n$lockKey = 'my_lock';\n$lockValue = uniqid();\n$expire = 10; \/\/ \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba10\u79d2\n\nif (acquireLock($redis, $lockKey, $lockValue, $expire)) {\n    \/\/ \u7372\u53d6\u9396\u6210\u529f\uff0c\u57f7\u884c\u64cd\u4f5c\n} else {\n    \/\/ \u7372\u53d6\u9396\u5931\u6557\uff0c\u8655\u7406\u908f\u8f2f\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-ayArbfacRk\">\u7d50\u8ad6<\/h2>\n<p>\u5408\u7406\u8a2d\u7f6eRedis\u9396\u7684\u904e\u671f\u6642\u9593\u5c0d\u65bc\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u8003\u616e\u64cd\u4f5c\u7684\u9810\u671f\u6642\u9593\u3001\u91cd\u8a66\u6a5f\u5236\u548c\u7cfb\u7d71\u8ca0\u8f09\u7b49\u56e0\u7d20\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5f9e\u800c\u907f\u514d\u6b7b\u9396\u548c\u8cc7\u6e90\u6d6a\u8cbb\u3002\u6b64\u5916\uff0c\u4f7f\u7528Redlock\u7b97\u6cd5\u53ef\u4ee5\u9032\u4e00\u6b65\u589e\u5f37\u9396\u7684\u53ef\u9760\u6027\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\u9748\u6d3b\u8abf\u6574\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u6548\u679c\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u70baRedis\u9396\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u63d0\u9ad8\u9396\u7684\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\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-172275","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172275","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=172275"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172275\/revisions"}],"predecessor-version":[{"id":172276,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172275\/revisions\/172276"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}