{"id":192328,"date":"2024-11-12T18:50:21","date_gmt":"2024-11-12T10:50:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/192328\/"},"modified":"2024-11-12T18:50:22","modified_gmt":"2024-11-12T10:50:22","slug":"%e5%af%abredis%e9%8e%96%e5%af%a6%e7%8f%be%e6%a9%9f%e5%88%b6%e5%88%86%e6%9e%90%ef%bc%88redis%e9%8e%96%e7%9a%84%e6%9b%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/192328\/","title":{"rendered":"\u5bebRedis\u9396\u5be6\u73fe\u6a5f\u5236\u5206\u6790\uff08redis\u9396\u7684\u66f8\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%abredis%e9%8e%96%e5%af%a6%e7%8f%be%e6%a9%9f%e5%88%b6%e5%88%86%e6%9e%90%ef%bc%88redis%e9%8e%96%e7%9a%84%e6%9b%b8%ef%bc%89-VINQAjfScg\">\u5bebRedis\u9396\u5be6\u73fe\u6a5f\u5236\u5206\u6790\uff08redis\u9396\u7684\u66f8\uff09<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7684\u7af6\u722d\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u3002\u70ba\u4e86\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\uff0c\u9396\u7684\u6a5f\u5236\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u5c31\u662f\u57fa\u65bcRedis\u7684\u5206\u4f48\u5f0f\u9396\u3002\u672c\u6587\u5c07\u6df1\u5165\u5206\u6790Redis\u9396\u7684\u5be6\u73fe\u6a5f\u5236\uff0c\u4e26\u63a2\u8a0e\u5176\u512a\u7f3a\u9ede\u53ca\u4f7f\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-VINQAjfScg\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002Redis\u9396\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bcRedis\u7684\u539f\u5b50\u64cd\u4f5c\uff0c\u9019\u4f7f\u5f97\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u904e\u7a0b\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-VINQAjfScg\">Redis\u9396\u7684\u5be6\u73fe\u65b9\u5f0f<\/h2>\n<p>Redis\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\u6709\u591a\u7a2e\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u5be6\u73fe\u65b9\u5f0f\uff1a<\/p>\n<h3 id=\"1-%e5%9f%ba%e6%96%bcsetnx%e5%91%bd%e4%bb%a4%e7%9a%84%e9%8e%96-VINQAjfScg\">1. \u57fa\u65bcSETNX\u547d\u4ee4\u7684\u9396<\/h3>\n<p>\u6700\u57fa\u672c\u7684Redis\u9396\u5be6\u73fe\u662f\u4f7f\u7528SETNX\u547d\u4ee4\u3002SETNX\u547d\u4ee4\u7684\u5168\u540d\u662f\u201cSET if Not eXists\u201d\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u7576\u9375\u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u4e26\u8fd4\u56de1\uff1b\u5982\u679c\u9375\u5df2\u5b58\u5728\uff0c\u5247\u8fd4\u56de0\u3002\u9019\u500b\u7279\u6027\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u3002<\/p>\n<pre><code>SETNX lock_key unique_lock_value\n<\/code><\/pre>\n<p>\u7576\u4e00\u500b\u9032\u7a0b\u60f3\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u53ef\u4ee5\u57f7\u884c\u4e0a\u8ff0\u547d\u4ee4\u3002\u5982\u679c\u8fd4\u56de\u503c\u70ba1\uff0c\u5247\u8868\u793a\u7372\u53d6\u9396\u6210\u529f\uff1b\u5982\u679c\u8fd4\u56de\u503c\u70ba0\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\u3002<\/p>\n<h3 id=\"2-%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-VINQAjfScg\">2. \u9396\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\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\u5373\u4f7f\u6301\u9396\u7684\u9032\u7a0b\u5d29\u6f70\uff0c\u9396\u4e5f\u6703\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u91cb\u653e\u3002<\/p>\n<pre><code>SET lock_key unique_lock_value EX 10 NX\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u4e2d\uff0cEX 10\u8868\u793a\u9396\u7684\u904e\u671f\u6642\u9593\u70ba10\u79d2\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u907f\u514d\u56e0\u70ba\u9032\u7a0b\u7570\u5e38\u5c0e\u81f4\u7684\u6b7b\u9396\u554f\u984c\u3002<\/p>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e9%87%8b%e6%94%be-VINQAjfScg\">3. \u9396\u7684\u91cb\u653e<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e5f\u9700\u8981\u8b39\u614e\uff0c\u5fc5\u9808\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u624d\u80fd\u91cb\u653e\u9396\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u9396\u7684\u503c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>if (get(lock_key) == unique_lock_value) {\n    del(lock_key);\n}\n<\/code><\/pre>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-VINQAjfScg\">Redis\u9396\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e5%84%aa%e9%bb%9e-VINQAjfScg\">\u512a\u9ede<\/h3>\n<ul>\n<li>\u9ad8\u6548\uff1aRedis\u7684\u64cd\u4f5c\u662f\u539f\u5b50\u6027\u7684\uff0c\u7372\u53d6\u548c\u91cb\u653e\u9396\u7684\u901f\u5ea6\u975e\u5e38\u5feb\u3002<\/li>\n<li>\u7c21\u55ae\uff1a\u4f7f\u7528Redis\u5be6\u73fe\u9396\u7684\u4ee3\u78bc\u76f8\u5c0d\u7c21\u55ae\uff0c\u6613\u65bc\u7406\u89e3\u548c\u7dad\u8b77\u3002<\/li>\n<li>\u53ef\u64f4\u5c55\uff1aRedis\u652f\u6301\u5206\u4f48\u5f0f\u67b6\u69cb\uff0c\u53ef\u4ee5\u8f15\u9b06\u64f4\u5c55\u5230\u591a\u500b\u7bc0\u9ede\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-VINQAjfScg\">\u7f3a\u9ede<\/h3>\n<ul>\n<li>\u53ef\u9760\u6027\uff1a\u5982\u679c\u6301\u9396\u7684\u9032\u7a0b\u5d29\u6f70\uff0c\u9396\u53ef\u80fd\u4e0d\u6703\u88ab\u91cb\u653e\uff0c\u5c0e\u81f4\u5176\u4ed6\u9032\u7a0b\u7121\u6cd5\u7372\u53d6\u9396\u3002<\/li>\n<li>\u7cbe\u78ba\u6027\uff1a\u9700\u8981\u78ba\u4fdd\u9396\u7684\u552f\u4e00\u6027\uff0c\u5426\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u7af6\u722d\u689d\u4ef6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-VINQAjfScg\">\u4f7f\u7528\u5834\u666f<\/h2>\n<p>Redis\u9396\u9069\u7528\u65bc\u9700\u8981\u63a7\u5236\u8cc7\u6e90\u8a2a\u554f\u7684\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u5206\u4f48\u5f0f\u4efb\u52d9\u8abf\u5ea6\uff1a\u78ba\u4fdd\u540c\u4e00\u4efb\u52d9\u4e0d\u6703\u88ab\u591a\u500b\u9032\u7a0b\u540c\u6642\u57f7\u884c\u3002<\/li>\n<li>\u6578\u64da\u4e00\u81f4\u6027\uff1a\u5728\u591a\u500b\u9032\u7a0b\u5c0d\u540c\u4e00\u6578\u64da\u9032\u884c\u64cd\u4f5c\u6642\uff0c\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VINQAjfScg\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u7c21\u55ae\u7684\u5206\u4f48\u5f0f\u9396\u5be6\u73fe\u65b9\u5f0f\uff0c\u9069\u7528\u65bc\u591a\u7a2e\u5834\u666f\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u548c\u552f\u4e00\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u6b7b\u9396\u548c\u7af6\u722d\u689d\u4ef6\u7684\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0cRedis\u9396\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\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<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5206\u6790Redis\u9396\u7684\u5be6\u73fe\u6a5f\u5236\uff0c\u63a2\u8a0e\u5176\u539f\u7406\u3001\u61c9\u7528\u5834\u666f\u53ca\u512a\u7f3a\u9ede\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u7ba1\u7406\u5206\u4f48\u5f0f\u9396\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-192328","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192328","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=192328"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192328\/revisions"}],"predecessor-version":[{"id":192329,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192328\/revisions\/192329"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=192328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=192328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=192328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}