{"id":175367,"date":"2024-11-08T05:17:18","date_gmt":"2024-11-07T21:17:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175367\/"},"modified":"2024-11-08T05:17:19","modified_gmt":"2024-11-07T21:17:19","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%8e%96%e6%a9%9f%e5%88%b6%ef%bc%88redis%e9%8e%96%e6%ad%a3%e7%a2%ba%e5%af%ab%e6%b3%95%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175367\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9396\u6a5f\u5236\uff08redis\u9396\u6b63\u78ba\u5beb\u6cd5\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%8e%96%e6%a9%9f%e5%88%b6%ef%bc%88redis%e9%8e%96%e6%ad%a3%e7%a2%ba%e5%af%ab%e6%b3%95%ef%bc%89-EQzKCHlHdJ\">\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9396\u6a5f\u5236\uff08redis\u9396\u6b63\u78ba\u5beb\u6cd5\uff09<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u6a5f\u5236\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\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9396\u6a5f\u5236\uff0c\u4e26\u63d0\u4f9b\u6b63\u78ba\u7684\u5beb\u6cd5\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-EQzKCHlHdJ\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u901a\u904e\u8a2d\u7f6e\u4e00\u500b\u9375\u4f86\u8868\u793a\u9396\u7684\u72c0\u614b\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5728Redis\u4e2d\u8a2d\u7f6e\u9019\u500b\u9375\uff0c\u4e26\u5728\u5b8c\u6210\u4efb\u52d9\u5f8c\u522a\u9664\u9019\u500b\u9375\u3002\u9019\u6a23\uff0c\u5176\u4ed6\u9032\u7a0b\u5728\u5617\u8a66\u7372\u53d6\u9396\u6642\uff0c\u53ef\u4ee5\u6aa2\u67e5\u9019\u500b\u9375\u662f\u5426\u5b58\u5728\uff0c\u4ee5\u6c7a\u5b9a\u662f\u5426\u53ef\u4ee5\u7e7c\u7e8c\u57f7\u884c\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e6%ad%a5%e9%a9%9f-EQzKCHlHdJ\">Redis\u9396\u7684\u5be6\u73fe\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e7%8d%b2%e5%8f%96%e9%8e%96-EQzKCHlHdJ\">1. \u7372\u53d6\u9396<\/h3>\n<p>\u7372\u53d6\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u6211\u5011\u9700\u8981\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u3002SETNX\u547d\u4ee4\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u6642\u624d\u6703\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u9396\u7684\u552f\u4e00\u6027\u3002<\/p>\n<pre><code>SETNX lock_key unique_lock_value<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>lock_key<\/code>\u662f\u9396\u7684\u540d\u7a31\uff0c<code>unique_lock_value<\/code>\u662f\u7528\u65bc\u6a19\u8b58\u9396\u7684\u552f\u4e00\u503c\u3002\u9019\u500b\u552f\u4e00\u503c\u53ef\u4ee5\u662f\u9032\u7a0bID\u6216UUID\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-EQzKCHlHdJ\">2. \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u6211\u5011\u9700\u8981\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528<code>EXPIRE<\/code>\u547d\u4ee4\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>EXPIRE lock_key 10<\/code><\/pre>\n<p>\u9019\u88e1\u7684<code>10<\/code>\u8868\u793a\u9396\u7684\u6709\u6548\u6642\u9593\u70ba10\u79d2\u3002\u5982\u679c\u5728\u9019\u6bb5\u6642\u9593\u5167\u9396\u6c92\u6709\u88ab\u91cb\u653e\uff0c\u5247\u6703\u81ea\u52d5\u904e\u671f\u3002<\/p>\n<h3 id=\"3-%e9%87%8b%e6%94%be%e9%8e%96-EQzKCHlHdJ\">3. \u91cb\u653e\u9396<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u6211\u5011\u9700\u8981\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u624d\u80fd\u91cb\u653e\u5b83\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u9396\u7684\u552f\u4e00\u503c\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>\nif (GET(lock_key) == unique_lock_value) {\n    DEL(lock_key);\n}\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u9996\u5148\u6aa2\u67e5\u7576\u524d\u9032\u7a0b\u662f\u5426\u6301\u6709\u9396\uff0c\u5982\u679c\u662f\uff0c\u5247\u522a\u9664\u9396\u3002<\/p>\n<h2 id=\"%e5%ae%8c%e6%95%b4%e7%9a%84%e9%8e%96%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-EQzKCHlHdJ\">\u5b8c\u6574\u7684\u9396\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684Redis\u9396\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nfunction acquireLock($redis, $lockKey, $timeout) {\n    $uniqueValue = uniqid(); \/\/ \u751f\u6210\u552f\u4e00\u503c\n    if ($redis-&gt;set($lockKey, $uniqueValue, ['nx', 'ex' =&gt; $timeout])) {\n        return $uniqueValue; \/\/ \u7372\u53d6\u9396\u6210\u529f\n    }\n    return false; \/\/ \u7372\u53d6\u9396\u5931\u6557\n}\n\nfunction releaseLock($redis, $lockKey, $uniqueValue) {\n    if ($redis-&gt;get($lockKey) === $uniqueValue) {\n        $redis-&gt;del($lockKey); \/\/ \u91cb\u653e\u9396\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-EQzKCHlHdJ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u9396\u7684\u552f\u4e00\u6027\uff1a\u4f7f\u7528\u552f\u4e00\u503c\u4f86\u6a19\u8b58\u9396\uff0c\u907f\u514d\u4e0d\u540c\u9032\u7a0b\u4e4b\u9593\u7684\u5e72\u64fe\u3002<\/li>\n<li>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff1a\u6839\u64da\u696d\u52d9\u9700\u6c42\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u907f\u514d\u6b7b\u9396\u3002<\/li>\n<li>\u8003\u616e\u9396\u7684\u91cd\u5165\u6027\uff1a\u5982\u679c\u9700\u8981\u652f\u6301\u91cd\u5165\u9396\uff0c\u5247\u9700\u8981\u9032\u4e00\u6b65\u7684\u908f\u8f2f\u4f86\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EQzKCHlHdJ\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u5be6\u73fe\u9396\u6a5f\u5236\u662f\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7ba1\u7406\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u6b63\u78ba\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u7af6\u722d\u689d\u4ef6\u548c\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u548c\u7a69\u5b9a\u7684\u9396\u6a5f\u5236\u7684\u61c9\u7528\uff0cRedis\u7121\u7591\u662f\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u65b9\u6848\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9396\u6a5f\u5236\uff0c\u638c\u63e1\u6b63\u78ba\u7684Redis\u9396\u5beb\u6cd5\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-175367","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175367","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=175367"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175367\/revisions"}],"predecessor-version":[{"id":175368,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175367\/revisions\/175368"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}