{"id":163761,"date":"2024-11-05T02:12:24","date_gmt":"2024-11-04T18:12:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163761\/"},"modified":"2024-11-05T02:12:25","modified_gmt":"2024-11-04T18:12:25","slug":"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%e8%a7%a3%e6%b1%ba%e4%b8%8d%e5%90%8credis%e7%b7%a9%e5%ad%98%e8%a1%9d%e7%aa%81%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88%e4%b8%8d%e5%90%8credis%e7%b7%a9%e5%ad%98%e8%a1%9d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163761\/","title":{"rendered":"\u89e3\u6c7a\u65b9\u6848\u89e3\u6c7a\u4e0d\u540cRedis\u7de9\u5b58\u885d\u7a81\u7684\u65b9\u6cd5\uff08\u4e0d\u540credis\u7de9\u5b58\u885d\u7a81\uff09"},"content":{"rendered":"<h1 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id=\"%e7%b7%a9%e5%ad%98%e8%a1%9d%e7%aa%81%e7%9a%84%e5%8e%9f%e5%9b%a0-EuqGlaQHPU\">\u7de9\u5b58\u885d\u7a81\u7684\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u591a\u5be6\u4f8b\u8a2a\u554f\uff1a<\/strong>\u7576\u591a\u500b\u61c9\u7528\u7a0b\u5e8f\u6216\u670d\u52d9\u540c\u6642\u8a2a\u554f\u540c\u4e00\u500bRedis\u5be6\u4f8b\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u7684\u7af6\u722d\u689d\u4ef6\u3002<\/li>\n<li><strong>\u9375\u540d\u885d\u7a81\uff1a<\/strong>\u4e0d\u540c\u7684\u61c9\u7528\u7a0b\u5e8f\u4f7f\u7528\u76f8\u540c\u7684\u9375\u540d\u4f86\u5b58\u5132\u6578\u64da\uff0c\u9019\u6703\u5c0e\u81f4\u6578\u64da\u88ab\u8986\u84cb\u3002<\/li>\n<li><strong>\u904e\u671f\u7b56\u7565\uff1a<\/strong>\u5982\u679c\u4e0d\u540c\u7684\u61c9\u7528\u7a0b\u5e8f\u5c0d\u540c\u4e00\u500b\u9375\u8a2d\u7f6e\u4e86\u4e0d\u540c\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u7684\u610f\u5916\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e8%a1%9d%e7%aa%81%e7%9a%84%e6%96%b9%e6%b3%95-EuqGlaQHPU\">\u89e3\u6c7aRedis\u7de9\u5b58\u885d\u7a81\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%91%bd%e5%90%8d%e7%a9%ba%e9%96%93-EuqGlaQHPU\">1. \u4f7f\u7528\u547d\u540d\u7a7a\u9593<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u9375\u540d\u885d\u7a81\uff0c\u53ef\u4ee5\u70ba\u6bcf\u500b\u61c9\u7528\u7a0b\u5e8f\u6216\u670d\u52d9\u4f7f\u7528\u7368\u7279\u7684\u547d\u540d\u7a7a\u9593\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u61c9\u7528A\uff0c\u53ef\u4ee5\u4f7f\u7528\u201cappA:user:123\u201d\u4f5c\u70ba\u9375\u540d\uff0c\u800c\u5c0d\u65bc\u61c9\u7528B\uff0c\u5247\u4f7f\u7528\u201cappB:user:123\u201d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u4e0d\u540c\u61c9\u7528\u4e4b\u9593\u7684\u9375\u540d\u885d\u7a81\u3002<\/p>\n<h3 id=\"2-%e5%af%a6%e7%8f%be%e9%8e%96%e6%a9%9f%e5%88%b6-EuqGlaQHPU\">2. \u5be6\u73fe\u9396\u6a5f\u5236<\/h3>\n<p>\u5728\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u5206\u4f48\u5f0f\u9396\u4f86\u9632\u6b62\u540c\u6642\u8a2a\u554f\u540c\u4e00\u500b\u9375\u3002\u53ef\u4ee5\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\uff0c\u4e26\u5728\u64cd\u4f5c\u5b8c\u6210\u5f8c\u91cb\u653e\u9396\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nSETNX lock_key 1\nEXPIRE lock_key 5\n# \u57f7\u884c\u64cd\u4f5c\nDEL lock_key\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e7%89%88%e6%9c%ac%e8%99%9f-EuqGlaQHPU\">3. \u4f7f\u7528\u7248\u672c\u865f<\/h3>\n<p>\u5728\u66f4\u65b0\u7de9\u5b58\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u7248\u672c\u865f\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u6bcf\u6b21\u66f4\u65b0\u6578\u64da\u6642\uff0c\u5c07\u7248\u672c\u865f\u52a01\uff0c\u4e26\u5728\u66f4\u65b0\u6642\u6aa2\u67e5\u7248\u672c\u865f\u662f\u5426\u5339\u914d\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u70ba\u6578\u64da\u88ab\u8986\u84cb\u800c\u5c0e\u81f4\u7684\u554f\u984c\u3002<\/p>\n<pre><code>\nif (current_version == stored_version) {\n    \/\/ \u66f4\u65b0\u6578\u64da\n    SET key new_value\n    SET version new_version\n}\n<\/code><\/pre>\n<h3 id=\"4-%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-EuqGlaQHPU\">4. \u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u6578\u64da\u7684\u610f\u5916\u4e1f\u5931\uff0c\u61c9\u6839\u64da\u696d\u52d9\u9700\u6c42\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u3002\u5c0d\u65bc\u7d93\u5e38\u8b8a\u52d5\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u8f03\u77ed\u7684\u904e\u671f\u6642\u9593\uff0c\u800c\u5c0d\u65bc\u975c\u614b\u6578\u64da\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u8f03\u9577\u7684\u904e\u671f\u6642\u9593\u3002<\/p>\n<h3 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e6%97%a5%e8%aa%8c%e8%a8%98%e9%8c%84-EuqGlaQHPU\">5. 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id=\"%e7%b8%bd%e7%b5%90-EuqGlaQHPU\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7de9\u5b58\u885d\u7a81\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9019\u4e9b\u885d\u7a81\u7684\u5f71\u97ff\u3002\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u3001\u5be6\u73fe\u9396\u6a5f\u5236\u3001\u4f7f\u7528\u7248\u672c\u865f\u3001\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u4ee5\u53ca\u76e3\u63a7\u548c\u65e5\u8a8c\u8a18\u9304\u90fd\u662f\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u904b\u884cRedis\u5be6\u4f8b\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6709\u6548\u89e3\u6c7a\u4e0d\u540cRedis\u7de9\u5b58\u885d\u7a81\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\u6027\uff0c\u78ba\u4fdd\u9ad8\u6548\u7684\u7de9\u5b58\u7ba1\u7406\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-163761","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163761","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=163761"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163761\/revisions"}],"predecessor-version":[{"id":163762,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163761\/revisions\/163762"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}