{"id":129335,"date":"2024-10-26T20:51:22","date_gmt":"2024-10-26T12:51:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129335\/"},"modified":"2024-10-26T20:51:23","modified_gmt":"2024-10-26T12:51:23","slug":"redis%e9%8e%96%e5%ae%9a%e8%a8%ad%e7%bd%ae%e6%8c%87%e5%8d%97%ef%bc%88redis%e9%8e%96%e6%80%8e%e9%ba%bc%e8%a8%ad%e7%bd%ae%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129335\/","title":{"rendered":"Redis\u9396\u5b9a\u8a2d\u7f6e\u6307\u5357\uff08redis\u9396\u600e\u9ebc\u8a2d\u7f6e\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e5%ae%9a%e8%a8%ad%e7%bd%ae%e6%8c%87%e5%8d%97%ef%bc%88redis%e9%8e%96%e6%80%8e%e9%ba%bc%e8%a8%ad%e7%bd%ae%ef%bc%89-tbplKyRuiL\">Redis\u9396\u5b9a\u8a2d\u7f6e\u6307\u5357\uff08redis\u9396\u600e\u9ebc\u8a2d\u7f6e\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u4e00\u81f4\u6027\u548c\u4e26\u767c\u63a7\u5236\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\u9396\u5b9a\u6a5f\u5236\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u4e26\u767c\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u9396\u7684\u8a2d\u7f6e\u65b9\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-tbplKyRuiL\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\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\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u662f\u57fa\u65bcSETNX\u547d\u4ee4\u7684\u9396\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-tbplKyRuiL\">Redis\u9396\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>Redis\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u4f7f\u7528\u4e00\u500b\u9375\u4f86\u8868\u793a\u9396\u7684\u72c0\u614b\u3002\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u9019\u500b\u9375\u3002\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u7372\u53d6\uff1b\u5982\u679c\u8a2d\u7f6e\u5931\u6557\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u5ba2\u6236\u7aef\u6301\u6709\u3002<\/p>\n<h3 id=\"setnx%e5%91%bd%e4%bb%a4-tbplKyRuiL\">SETNX\u547d\u4ee4<\/h3>\n<p>SETNX\uff08Set if Not eXists\uff09\u547d\u4ee4\u662fRedis\u4e2d\u7528\u65bc\u8a2d\u7f6e\u9375\u7684\u547d\u4ee4\uff0c\u53ea\u6709\u7576\u9375\u4e0d\u5b58\u5728\u6642\u624d\u6703\u8a2d\u7f6e\u6210\u529f\u3002\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u5be6\u73fe\u9396\u7684\u7406\u60f3\u9078\u64c7\u3002\u4ee5\u4e0b\u662fSETNX\u7684\u57fa\u672c\u7528\u6cd5\uff1a<\/p>\n<pre><code>SETNX lock_key unique_identifier<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>lock_key<\/code>\u662f\u9396\u7684\u540d\u7a31\uff0c\u800c<code>unique_identifier<\/code>\u662f\u7528\u65bc\u6a19\u8b58\u9396\u7684\u552f\u4e00\u503c\uff0c\u901a\u5e38\u662f\u5ba2\u6236\u7aef\u7684ID\u6216\u96a8\u6a5f\u751f\u6210\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%aeredis%e9%8e%96%e7%9a%84%e6%ad%a5%e9%a9%9f-tbplKyRuiL\">\u8a2d\u7f6eRedis\u9396\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e7%8d%b2%e5%8f%96%e9%8e%96-tbplKyRuiL\">1. \u7372\u53d6\u9396<\/h3>\n<p>\u9996\u5148\uff0c\u5ba2\u6236\u7aef\u9700\u8981\u5617\u8a66\u7372\u53d6\u9396\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>\nfunction acquireLock($redis, $lockKey, $uniqueId, $expireTime) {\n    $result = $redis-&gt;set($lockKey, $uniqueId, ['nx', 'ex' =&gt; $expireTime]);\n    return $result;\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c<code>$expireTime<\/code>\u662f\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002<\/p>\n<h3 id=\"2-%e9%87%8b%e6%94%be%e9%8e%96-tbplKyRuiL\">2. \u91cb\u653e\u9396<\/h3>\n<p>\u7576\u64cd\u4f5c\u5b8c\u6210\u5f8c\uff0c\u5ba2\u6236\u7aef\u9700\u8981\u91cb\u653e\u9396\u3002\u91cb\u653e\u9396\u7684\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nfunction releaseLock($redis, $lockKey, $uniqueId) {\n    if ($redis-&gt;get($lockKey) === $uniqueId) {\n        $redis-&gt;del($lockKey);\n    }\n}\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u5ba2\u6236\u7aef\u624d\u80fd\u91cb\u653e\u9396\u3002<\/p>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e8%99%95%e7%90%86-tbplKyRuiL\">3. \u9396\u7684\u904e\u671f\u8655\u7406<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u5ba2\u6236\u7aef\u5728\u6301\u6709\u9396\u7684\u671f\u9593\u5d29\u6f70\uff0c\u9396\u5c07\u5728\u904e\u671f\u5f8c\u81ea\u52d5\u91cb\u653e\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5176\u4ed6\u5ba2\u6236\u7aef\u80fd\u5920\u7372\u53d6\u9396\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-tbplKyRuiL\">Redis\u9396\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u64cd\u4f5c\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5eab\u5beb\u5165\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528Redis\u9396\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u4efb\u52d9\u8abf\u5ea6\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u4efb\u52d9\u8abf\u5ea6\u4e2d\uff0c\u9396\u53ef\u4ee5\u78ba\u4fdd\u540c\u4e00\u4efb\u52d9\u4e0d\u6703\u88ab\u591a\u500b\u5be6\u4f8b\u540c\u6642\u57f7\u884c\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5728\u8cc7\u6e90\u6709\u9650\u7684\u60c5\u6cc1\u4e0b\uff0c\u9396\u53ef\u4ee5\u63a7\u5236\u5c0d\u8cc7\u6e90\u7684\u8a2a\u554f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tbplKyRuiL\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u6709\u6548\u7684\u4e26\u767c\u63a7\u5236\u6a5f\u5236\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u4f7f\u7528SETNX\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\uff0c\u4e26\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u4f86\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0cRedis\u9396\u63d0\u4f9b\u4e86\u4e00\u500b\u53ef\u9760\u7684\u89e3\u6c7a\u65b9\u6848\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\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f <a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Redis\u4e2d\u8a2d\u7f6e\u9396\u5b9a\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u5be6\u7528\u6307\u5357\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-129335","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129335","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=129335"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129335\/revisions"}],"predecessor-version":[{"id":129336,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129335\/revisions\/129336"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}