{"id":153125,"date":"2024-11-02T04:50:21","date_gmt":"2024-11-01T20:50:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153125\/"},"modified":"2024-11-02T04:50:22","modified_gmt":"2024-11-01T20:50:22","slug":"%e5%be%9e-0-%e5%88%b0-1-redis-%e8%ae%80%e6%95%b8%e6%93%9a%e7%9a%84%e5%ae%89%e5%85%a8%e4%b9%8b%e9%81%93%ef%bc%88redis-%e8%ae%80%e6%95%b8%e6%93%9a%e5%8a%a0%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153125\/","title":{"rendered":"\u5f9e 0 \u5230 1 Redis \u8b80\u6578\u64da\u7684\u5b89\u5168\u4e4b\u9053\uff08Redis \u8b80\u6578\u64da\u52a0\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e5%be%9e-0-%e5%88%b0-1-redis-%e8%ae%80%e6%95%b8%e6%93%9a%e7%9a%84%e5%ae%89%e5%85%a8%e4%b9%8b%e9%81%93%ef%bc%88redis-%e8%ae%80%e6%95%b8%e6%93%9a%e5%8a%a0%e9%8e%96%ef%bc%89-llhCkMyumE\">\u5f9e 0 \u5230 1 Redis \u8b80\u6578\u64da\u7684\u5b89\u5168\u4e4b\u9053\uff08Redis \u8b80\u6578\u64da\u52a0\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u6578\u64da\u5b89\u5168\u6027\u554f\u984c\u4e5f\u65e5\u76ca\u51f8\u986f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5b89\u5168\u5730\u8b80\u53d6\u6578\u64da\uff0c\u7279\u5225\u662f\u901a\u904e\u52a0\u9396\u6a5f\u5236\u4f86\u4fdd\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-llhCkMyumE\">Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u5834\u666f\u3002\u7136\u800c\uff0cRedis \u7684\u55ae\u7dda\u7a0b\u7279\u6027\u4f7f\u5f97\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e0b\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u4e00\u81f4\u6027\u6210\u70ba\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%8a%a0%e9%8e%96-llhCkMyumE\">\u70ba\u4ec0\u9ebc\u9700\u8981\u52a0\u9396<\/h2>\n<p>\u5728\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8a2a\u554f Redis \u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u6578\u64da\u7af6\u722d\u7684\u60c5\u6cc1\u3002\u4f8b\u5982\uff0c\u5169\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5617\u8a66\u66f4\u65b0\u540c\u4e00\u500b\u9375\u7684\u503c\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u4f7f\u7528\u52a0\u9396\u6a5f\u5236\u4f86\u4fdd\u8b77\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u904e\u7a0b\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e9%8e%96%e6%a9%9f%e5%88%b6-llhCkMyumE\">Redis \u7684\u9396\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u52a0\u9396\u7684\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u662f\u4f7f\u7528 SETNX \u547d\u4ee4\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u3002SETNX \u547d\u4ee4\u7684\u5168\u540d\u662f &#8220;SET if Not eXists&#8221;\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u8a2d\u7f6e\u9375\u7684\u503c\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u5be6\u73fe\u9396\u7684\u529f\u80fd\u3002<\/p>\n<h3 id=\"%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-llhCkMyumE\">\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u57fa\u672c\u6b65\u9a5f<\/h3>\n<ol>\n<li>\u5617\u8a66\u7372\u53d6\u9396\uff1a\u4f7f\u7528 SETNX \u547d\u4ee4\u8a2d\u7f6e\u4e00\u500b\u9396\u9375\u3002<\/li>\n<li>\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff1a\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u61c9\u8a72\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002<\/li>\n<li>\u57f7\u884c\u696d\u52d9\u908f\u8f2f\uff1a\u5728\u7372\u53d6\u9396\u5f8c\uff0c\u57f7\u884c\u9700\u8981\u4fdd\u8b77\u7684\u696d\u52d9\u908f\u8f2f\u3002<\/li>\n<li>\u91cb\u653e\u9396\uff1a\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u5b8c\u7562\u5f8c\uff0c\u522a\u9664\u9396\u9375\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-llhCkMyumE\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>function acquireLock($redis, $lockKey, $expire) {\n    $result = $redis-&gt;set($lockKey, 1, ['nx', 'ex' =&gt; $expire]);\n    return $result;\n}\n\nfunction releaseLock($redis, $lockKey) {\n    $redis-&gt;del($lockKey);\n}\n\n$redis = new Redis();\n$redis-&gt;connect('127.0.0.1', 6379);\n\n$lockKey = 'my_lock';\n$expire = 5; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\n\nif (acquireLock($redis, $lockKey, $expire)) {\n    \/\/ \u57f7\u884c\u696d\u52d9\u908f\u8f2f\n    \/\/ ...\n    \n    releaseLock($redis, $lockKey);\n} else {\n    echo \"\u7372\u53d6\u9396\u5931\u6557\uff0c\u8acb\u7a0d\u5f8c\u91cd\u8a66\u3002\";\n}<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-llhCkMyumE\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u9396\u6a5f\u5236\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u7279\u5225\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u9396\u7684\u904e\u671f\u6642\u9593\u61c9\u6839\u64da\u696d\u52d9\u908f\u8f2f\u7684\u57f7\u884c\u6642\u9593\u4f86\u8a2d\u7f6e\uff0c\u907f\u514d\u56e0\u70ba\u904e\u671f\u800c\u5c0e\u81f4\u7684\u6b7b\u9396\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u6642\uff0c\u61c9\u8a72\u78ba\u8a8d\u7576\u524d\u57f7\u884c\u7684\u9032\u7a0b\u662f\u6301\u6709\u9396\u7684\u9032\u7a0b\uff0c\u4ee5\u9632\u6b62\u8aa4\u522a\u9664\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528 Redlock \u7b97\u6cd5\u4f86\u5be6\u73fe\u66f4\u70ba\u53ef\u9760\u7684\u5206\u4f48\u5f0f\u9396\uff0c\u7279\u5225\u662f\u5728\u591a\u500b Redis \u5be6\u4f8b\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-llhCkMyumE\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Redis \u4e2d\u5b89\u5168\u5730\u8b80\u53d6\u6578\u64da\u662f\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7a69\u5b9a\u6027\u548c\u6578\u64da\u4e00\u81f4\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u4f7f\u7528\u52a0\u9396\u6a5f\u5236\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u57fa\u672c\u7684 SETNX \u547d\u4ee4\u9084\u662f\u66f4\u70ba\u8907\u96dc\u7684 Redlock \u7b97\u6cd5\uff0c\u9078\u64c7\u5408\u9069\u7684\u9396\u6a5f\u5236\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\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\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\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\u5f9e 0 \u5230 1 \u7684 Redis \u8b80\u6578\u64da\u5b89\u5168\u7b56\u7565\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u52a0\u9396\u4ee5\u4fdd\u8b77\u6578\u64da\u5b8c\u6574\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-153125","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153125","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=153125"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153125\/revisions"}],"predecessor-version":[{"id":153126,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153125\/revisions\/153126"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}