{"id":161567,"date":"2024-11-04T07:30:24","date_gmt":"2024-11-03T23:30:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161567\/"},"modified":"2024-11-04T07:30:25","modified_gmt":"2024-11-03T23:30:25","slug":"%e5%9f%ba%e6%96%bc-redis-%e6%a7%8b%e5%bb%ba%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e9%9b%86%e7%be%a4%ef%bc%88redis-%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e9%9b%86%e7%be%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161567\/","title":{"rendered":"\u57fa\u65bc Redis \u69cb\u5efa\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4\uff08redis \u7684\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e6%a7%8b%e5%bb%ba%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e9%9b%86%e7%be%a4-EaNrQhUQsq\">\u57fa\u65bc Redis \u69cb\u5efa\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7684\u7af6\u722d\u548c\u5354\u8abf\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u70ba\u4e86\u78ba\u4fdd\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u4e4b\u9593\u7684\u5354\u4f5c\uff0c\u5206\u5e03\u5f0f\u9396\u7684\u6982\u5ff5\u61c9\u904b\u800c\u751f\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u7406\u60f3\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u57fa\u65bc Redis \u69cb\u5efa\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u5be6\u73fe\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%ef%bc%9f-EaNrQhUQsq\">\u4ec0\u9ebc\u662f\u5206\u5e03\u5f0f\u9396\uff1f<\/h2>\n<p>\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\uff0c\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7af6\u722d\u689d\u4ef6\u7684\u767c\u751f\u3002\u5206\u5e03\u5f0f\u9396\u901a\u5e38\u7528\u65bc\u9700\u8981\u5354\u8abf\u7684\u5834\u666f\uff0c\u4f8b\u5982\u5728\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\uff0c\u7576\u591a\u500b\u670d\u52d9\u9700\u8981\u8a2a\u554f\u540c\u4e00\u6578\u64da\u5eab\u6216\u6587\u4ef6\u6642\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-EaNrQhUQsq\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\u548c\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u4f7f\u7528 Redis \u4f5c\u70ba\u5206\u5e03\u5f0f\u9396\u7684\u5f8c\u7aef\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u7684\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u652f\u6301\u9ad8\u4e26\u767c\u7684\u9396\u8acb\u6c42\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u547d\u4ee4\u4f86\u8a2d\u7f6e\u548c\u91cb\u653e\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u4e0a\u624b\u3002<\/li>\n<li><strong>\u652f\u6301\u6301\u4e45\u5316\uff1a<\/strong>Redis \u652f\u6301\u6578\u64da\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u9396\u7684\u72c0\u614b\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be-EaNrQhUQsq\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe<\/h2>\n<p>\u5728 Redis \u4e2d\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u601d\u8def\u662f\u4f7f\u7528 SETNX \u547d\u4ee4\u3002SETNX \u547d\u4ee4\u7684\u5168\u540d\u662f &#8220;SET if Not eXists&#8221;\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u7576\u9375\u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u4e26\u8fd4\u56de 1\uff1b\u5982\u679c\u9375\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u8fd4\u56de 0\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002<\/p>\n<h3 id=\"%e7%8d%b2%e5%8f%96%e9%8e%96-EaNrQhUQsq\">\u7372\u53d6\u9396<\/h3>\n<pre><code>\nfunction acquireLock($redis, $lockKey, $expire) {\n    $result = $redis-&gt;set($lockKey, 1, ['nx', 'ex' =&gt; $expire]);\n    return $result === true;\n}\n<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba <code>acquireLock<\/code> \u7684\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u63a5\u53d7 Redis \u5be6\u4f8b\u3001\u9396\u7684\u9375\u540d\u548c\u9396\u7684\u904e\u671f\u6642\u9593\u4f5c\u70ba\u53c3\u6578\u3002\u7576\u9396\u6210\u529f\u7372\u53d6\u6642\uff0c\u51fd\u6578\u8fd4\u56de true\u3002<\/p>\n<h3 id=\"%e9%87%8b%e6%94%be%e9%8e%96-EaNrQhUQsq\">\u91cb\u653e\u9396<\/h3>\n<pre><code>\nfunction releaseLock($redis, $lockKey) {\n    return $redis-&gt;del($lockKey);\n}\n<\/code><\/pre>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u53ea\u9700\u522a\u9664\u9396\u7684\u9375\u5373\u53ef\u3002\u4e0a\u9762\u7684 <code>releaseLock<\/code> \u51fd\u6578\u5be6\u73fe\u4e86\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e8%99%95%e7%90%86%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e5%95%8f%e9%a1%8c-EaNrQhUQsq\">\u8655\u7406\u9396\u7684\u904e\u671f\u554f\u984c<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u9396\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u975e\u5e38\u91cd\u8981\u3002\u5982\u679c\u9396\u7684\u6301\u6709\u8005\u5728\u6301\u6709\u9396\u7684\u904e\u7a0b\u4e2d\u5d29\u6f70\uff0c\u5247\u9396\u53ef\u80fd\u6703\u6c38\u9060\u7121\u6cd5\u91cb\u653e\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u7a2e\u7a31\u70ba &#8220;\u9396\u7e8c\u671f&#8221; \u7684\u6280\u8853\uff0c\u5b9a\u671f\u66f4\u65b0\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u78ba\u4fdd\u9396\u5728\u6301\u6709\u8005\u6b63\u5e38\u904b\u884c\u6642\u4e0d\u6703\u904e\u671f\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-EaNrQhUQsq\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bc Redis \u69cb\u5efa\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u5730\u5354\u8abf\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u4e4b\u9593\u7684\u8cc7\u6e90\u8a2a\u554f\u3002\u901a\u904e\u4f7f\u7528 Redis \u7684 SETNX \u547d\u4ee4\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\uff0c\u4e26\u901a\u904e\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u4f86\u907f\u514d\u9396\u7684\u6b7b\u9396\u554f\u984c\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\u90e8\u7f72\u60a8\u7684 Redis \u96c6\u7fa4\uff0cServer.HK \u63d0\u4f9b\u4e86\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\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u69cb\u5efa\u7684\u5206\u5e03\u5f0f\u9396\u96c6\u7fa4\uff0c\u5be6\u73fe\u9ad8\u6548\u7684\u8cc7\u6e90\u7ba1\u7406\u8207\u5354\u4f5c\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\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-161567","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161567","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=161567"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161567\/revisions"}],"predecessor-version":[{"id":161568,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161567\/revisions\/161568"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}