{"id":185204,"date":"2024-11-10T19:36:16","date_gmt":"2024-11-10T11:36:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185204\/"},"modified":"2024-11-10T19:36:17","modified_gmt":"2024-11-10T11:36:17","slug":"%e4%bd%bf%e7%94%a8redis%e8%87%aa%e5%b8%b6%e7%9a%84%e9%8e%96%e6%a9%9f%e5%88%b6%e8%a7%a3%e6%b1%ba%e7%b3%bb%e7%b5%b1%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c%ef%bc%88redis%e8%87%aa%e5%b8%b6%e7%9a%84%e9%8e%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185204\/","title":{"rendered":"\u4f7f\u7528Redis\u81ea\u5e36\u7684\u9396\u6a5f\u5236\u89e3\u6c7a\u7cfb\u7d71\u4e26\u767c\u554f\u984c\uff08redis\u81ea\u5e36\u7684\u9396\u6a5f\u5236\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e8%87%aa%e5%b8%b6%e7%9a%84%e9%8e%96%e6%a9%9f%e5%88%b6%e8%a7%a3%e6%b1%ba%e7%b3%bb%e7%b5%b1%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c-WHnIBhoHqB\">\u4f7f\u7528Redis\u81ea\u5e36\u7684\u9396\u6a5f\u5236\u89e3\u6c7a\u7cfb\u7d71\u4e26\u767c\u554f\u984c<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4e26\u767c\u554f\u984c\u662f\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u500b\u4e3b\u8981\u6311\u6230\u3002\u7576\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7cfb\u7d71\u5d29\u6f70\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\uff0cRedis\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u9396\u6a5f\u5236\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u4e26\u767c\u8a2a\u554f\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-WHnIBhoHqB\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u57fa\u65bc\u9375\u503c\u5b58\u5132\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u901a\u5e38\u7528\u65bc\u4fdd\u8b77\u5171\u4eab\u8cc7\u6e90\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u5fc5\u9808\u7b49\u5f85\uff0c\u76f4\u5230\u9396\u88ab\u91cb\u653e\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\u3002<\/p>\n<h3 id=\"redis%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-WHnIBhoHqB\">Redis\u9396\u7684\u5be6\u73fe\u65b9\u5f0f<\/h3>\n<p>Redis\u9396\u7684\u5be6\u73fe\u901a\u5e38\u4f7f\u7528SETNX\u547d\u4ee4\u3002SETNX\u547d\u4ee4\u7684\u5168\u540d\u662f\u201cSET if Not eXists\u201d\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u8a2d\u7f6e\u9375\u7684\u503c\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002<\/p>\n<pre><code>SETNX lock_key unique_lock_value\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c<code>lock_key<\/code>\u662f\u9396\u7684\u540d\u7a31\uff0c\u800c<code>unique_lock_value<\/code>\u662f\u7528\u65bc\u6a19\u8b58\u9396\u7684\u552f\u4e00\u503c\u3002\u7576\u4e00\u500b\u9032\u7a0b\u6210\u529f\u57f7\u884c\u9019\u689d\u547d\u4ee4\u6642\uff0c\u8868\u793a\u5b83\u7372\u5f97\u4e86\u9396\uff1b\u5982\u679c\u8fd4\u56de\u503c\u70ba0\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u5f97\u3002<\/p>\n<h3 id=\"%e9%8e%96%e7%9a%84%e9%87%8b%e6%94%be-WHnIBhoHqB\">\u9396\u7684\u91cb\u653e<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e5f\u9700\u8981\u8b39\u614e\uff0c\u4ee5\u907f\u514d\u51fa\u73fe\u6b7b\u9396\u7684\u60c5\u6cc1\u3002\u91cb\u653e\u9396\u7684\u6642\u5019\uff0c\u5fc5\u9808\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\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<p>\u9019\u6bb5\u4ee3\u78bc\u9996\u5148\u6aa2\u67e5\u7576\u524d\u9032\u7a0b\u6301\u6709\u7684\u9396\u503c\u662f\u5426\u8207Redis\u4e2d\u5b58\u5132\u7684\u9396\u503c\u76f8\u540c\uff0c\u53ea\u6709\u76f8\u540c\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u91cb\u653e\u9396\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-WHnIBhoHqB\">Redis\u9396\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e5%84%aa%e9%bb%9e-WHnIBhoHqB\">\u512a\u9ede<\/h3>\n<ul>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis\u7684\u9396\u6a5f\u5236\u5be6\u73fe\u7c21\u55ae\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u3002<\/li>\n<li><strong>\u6027\u80fd\u9ad8\u6548\uff1a<\/strong>Redis\u4f5c\u70ba\u5167\u5b58\u6578\u64da\u5eab\uff0c\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u9069\u5408\u9ad8\u4e26\u767c\u5834\u666f\u3002<\/li>\n<li><strong>\u652f\u6301\u5206\u4f48\u5f0f\uff1a<\/strong>Redis\u53ef\u4ee5\u5728\u591a\u500b\u670d\u52d9\u5668\u4e4b\u9593\u5171\u4eab\u9396\uff0c\u9069\u5408\u5206\u4f48\u5f0f\u7cfb\u7d71\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-WHnIBhoHqB\">\u7f3a\u9ede<\/h3>\n<ul>\n<li><strong>\u53ef\u80fd\u51fa\u73fe\u6b7b\u9396\uff1a<\/strong>\u5982\u679c\u9032\u7a0b\u5728\u6301\u6709\u9396\u7684\u60c5\u6cc1\u4e0b\u5d29\u6f70\uff0c\u9396\u5c07\u7121\u6cd5\u91cb\u653e\uff0c\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\u3002<\/li>\n<li><strong>\u9700\u8981\u984d\u5916\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\uff1a<\/strong>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u901a\u5e38\u9700\u8981\u70ba\u9396\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u9019\u589e\u52a0\u4e86\u5be6\u73fe\u7684\u8907\u96dc\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e9%8e%96%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-WHnIBhoHqB\">\u4f7f\u7528Redis\u9396\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u5730\u4f7f\u7528Redis\u9396\uff0c\u958b\u767c\u8005\u61c9\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5728\u7372\u53d6\u9396\u6642\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u4e4b\u524d\uff0c\u59cb\u7d42\u6aa2\u67e5\u9396\u7684\u64c1\u6709\u8005\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528Redlock\u7b97\u6cd5\u4f86\u63d0\u9ad8\u9396\u7684\u53ef\u9760\u6027\uff0c\u7279\u5225\u662f\u5728\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-WHnIBhoHqB\">\u7e3d\u7d50<\/h2>\n<p>Redis\u81ea\u5e36\u7684\u9396\u6a5f\u5236\u70ba\u89e3\u6c7a\u7cfb\u7d71\u4e26\u767c\u554f\u984c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528Redis\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5171\u4eab\u8cc7\u6e90\uff0c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u7121\u8ad6\u662f\u5728\u55ae\u6a5f\u9084\u662f\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0cRedis\u9396\u90fd\u80fd\u5920\u63d0\u4f9b\u9ad8\u6548\u7684\u4e26\u767c\u63a7\u5236\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u81ea\u5e36\u7684\u9396\u6a5f\u5236\u6709\u6548\u89e3\u6c7a\u7cfb\u7d71\u4e2d\u7684\u4e26\u767c\u554f\u984c\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\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-185204","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185204","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=185204"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185204\/revisions"}],"predecessor-version":[{"id":185205,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185204\/revisions\/185205"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}