{"id":193819,"date":"2024-11-13T01:22:19","date_gmt":"2024-11-12T17:22:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193819\/"},"modified":"2024-11-13T01:22:21","modified_gmt":"2024-11-12T17:22:21","slug":"%e7%a0%94%e7%a9%b6redis%e4%b8%ad%e7%9a%84%e4%ba%8b%e5%8b%99%e5%92%8c%e9%8e%96%e6%a9%9f%e5%88%b6%ef%bc%88redis%e7%9a%84%e4%ba%8b%e5%8b%99%e5%92%8c%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193819\/","title":{"rendered":"\u7814\u7a76Redis\u4e2d\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\uff08redis\u7684\u4e8b\u52d9\u548c\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e7%a0%94%e7%a9%b6redis%e4%b8%ad%e7%9a%84%e4%ba%8b%e5%8b%99%e5%92%8c%e9%8e%96%e6%a9%9f%e5%88%b6%ef%bc%88redis%e7%9a%84%e4%ba%8b%e5%8b%99%e5%92%8c%e9%8e%96%ef%bc%89-cixxYtfFrG\">\u7814\u7a76Redis\u4e2d\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\uff08redis\u7684\u4e8b\u52d9\u548c\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u8655\u7406\u74b0\u5883\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u5176\u652f\u6301\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u5b89\u5168\u5730\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u4e2d\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u53ca\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e4%ba%8b%e5%8b%99-cixxYtfFrG\">Redis\u4e2d\u7684\u4e8b\u52d9<\/h2>\n<p>Redis\u7684\u4e8b\u52d9\u662f\u901a\u904eMULTI\u3001EXEC\u3001WATCH\u7b49\u547d\u4ee4\u4f86\u5be6\u73fe\u7684\u3002\u4e8b\u52d9\u7684\u57fa\u672c\u6982\u5ff5\u662f\u5c07\u4e00\u7d44\u547d\u4ee4\u6253\u5305\u5728\u4e00\u8d77\uff0c\u78ba\u4fdd\u9019\u4e9b\u547d\u4ee4\u8981\u9ebc\u5168\u90e8\u57f7\u884c\uff0c\u8981\u9ebc\u5168\u90e8\u4e0d\u57f7\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u51fa\u73fe\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-cixxYtfFrG\">\u4e8b\u52d9\u7684\u57fa\u672c\u64cd\u4f5c<\/h3>\n<ul>\n<li><code>MULTI<\/code>: \u958b\u59cb\u4e00\u500b\u4e8b\u52d9\u3002<\/li>\n<li><code>EXEC<\/code>: \u57f7\u884c\u4e8b\u52d9\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u3002<\/li>\n<li><code>DISCARD<\/code>: \u653e\u68c4\u4e8b\u52d9\u3002<\/li>\n<li><code>WATCH<\/code>: \u76e3\u8996\u4e00\u500b\u6216\u591a\u500b\u9375\uff0c\u7576\u9019\u4e9b\u9375\u88ab\u4fee\u6539\u6642\uff0c\u4e8b\u52d9\u5c07\u4e0d\u6703\u57f7\u884c\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e7%a4%ba%e4%be%8b-cixxYtfFrG\">\u4e8b\u52d9\u7684\u793a\u4f8b<\/h3>\n<pre><code>\nMULTI\nSET key1 \"value1\"\nSET key2 \"value2\"\nEXEC\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u7576\u57f7\u884c<code>EXEC<\/code>\u547d\u4ee4\u6642\uff0c<code>key1<\/code>\u548c<code>key2<\/code>\u7684\u8a2d\u7f6e\u5c07\u88ab\u8996\u70ba\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\u3002\u5982\u679c\u5728<code>MULTI<\/code>\u548c<code>EXEC<\/code>\u4e4b\u9593\u6709\u5176\u4ed6\u5ba2\u6236\u7aef\u4fee\u6539\u4e86\u9019\u4e9b\u9375\uff0c\u5247\u4e8b\u52d9\u5c07\u4e0d\u6703\u57f7\u884c\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e9%8e%96%e6%a9%9f%e5%88%b6-cixxYtfFrG\">Redis\u4e2d\u7684\u9396\u6a5f\u5236<\/h2>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u7684\u91cd\u8981\u624b\u6bb5\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<h3 id=\"%e5%9f%ba%e6%96%bcsetnx%e7%9a%84%e9%8e%96-cixxYtfFrG\">\u57fa\u65bcSETNX\u7684\u9396<\/h3>\n<p>SETNX\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\u4e00\u7279\u6027\u4f7f\u5f97SETNX\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u7c21\u55ae\u7684\u9396\u6a5f\u5236\u3002<\/p>\n<h4 id=\"%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-cixxYtfFrG\">\u9396\u7684\u5be6\u73fe\u793a\u4f8b<\/h4>\n<pre><code>\nSETNX lock_key \"locked\"\nEXPIRE lock_key 10\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576\u57f7\u884c<code>SETNX<\/code>\u547d\u4ee4\u6642\uff0c\u5982\u679c<code>lock_key<\/code>\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u6210\u529f\uff0c\u8868\u793a\u7372\u5f97\u9396\u3002\u63a5\u8457\u4f7f\u7528<code>EXPIRE<\/code>\u547d\u4ee4\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h3 id=\"%e8%a7%a3%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be-cixxYtfFrG\">\u89e3\u9396\u7684\u5be6\u73fe<\/h3>\n<p>\u89e3\u9396\u7684\u904e\u7a0b\u9700\u8981\u8b39\u614e\u8655\u7406\uff0c\u4ee5\u907f\u514d\u8aa4\u89e3\u9396\u7684\u60c5\u6cc1\u3002\u901a\u5e38\u7684\u505a\u6cd5\u662f\u6aa2\u67e5\u7576\u524d\u9396\u7684\u64c1\u6709\u8005\uff0c\u53ea\u6709\u7576\u64c1\u6709\u8005\u6b63\u78ba\u6642\u624d\u9032\u884c\u89e3\u9396\u3002<\/p>\n<pre><code>\nif (GET lock_key == \"locked\") {\n    DEL lock_key\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-cixxYtfFrG\">\u7d50\u8ad6<\/h2>\n<p>Redis\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u5de5\u5177\u4f86\u7ba1\u7406\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u9019\u4e9b\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u4e8b\u52d9\u548c\u9396\u7b56\u7565\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca\u5176\u4ed6<code>\u4e91\u670d\u52a1\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2d\u7684\u4e8b\u52d9\u548c\u9396\u6a5f\u5236\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u6578\u64da\u4e00\u81f4\u6027\u548c\u4e26\u767c\u63a7\u5236\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\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-193819","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193819","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=193819"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193819\/revisions"}],"predecessor-version":[{"id":193820,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193819\/revisions\/193820"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}