{"id":97510,"date":"2024-10-20T18:37:21","date_gmt":"2024-10-20T10:37:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97510\/"},"modified":"2024-10-20T18:37:22","modified_gmt":"2024-10-20T10:37:22","slug":"redis-%e9%8e%96%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af%e5%88%86%e6%9e%90%ef%bc%88redis-%e9%8e%96%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97510\/","title":{"rendered":"Redis \u9396\u7684\u5be6\u969b\u61c9\u7528\u5834\u666f\u5206\u6790\uff08redis \u9396\u61c9\u7528\u5834\u666f\uff09"},"content":{"rendered":"

Redis \u9396\u7684\u5be6\u969b\u61c9\u7528\u5834\u666f\u5206\u6790<\/h1>\n

\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u4e00\u81f4\u6027\u548c\u4e26\u767c\u63a7\u5236\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5728\u591a\u7dda\u7a0b\u6216\u591a\u9032\u7a0b\u74b0\u5883\u4e2d\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u9396\u7684\u5be6\u969b\u61c9\u7528\u5834\u666f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5177\u9ad4\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

\u4ec0\u9ebc\u662f Redis \u9396\uff1f<\/h2>\n

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\u4fee\u6539\u540c\u4e00\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u662f\u57fa\u65bc SETNX \u547d\u4ee4\u7684\u9396\u3002<\/p>\n

Redis \u9396\u7684\u61c9\u7528\u5834\u666f<\/h2>\n

1. \u5206\u4f48\u5f0f\u4efb\u52d9\u8abf\u5ea6<\/h3>\n

\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4efb\u52d9\u8abf\u5ea6\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u5047\u8a2d\u6709\u591a\u500b\u5de5\u4f5c\u7bc0\u9ede\u9700\u8981\u57f7\u884c\u67d0\u500b\u4efb\u52d9\uff0c\u4f46\u53ea\u5e0c\u671b\u6709\u4e00\u500b\u7bc0\u9ede\u80fd\u5920\u57f7\u884c\u8a72\u4efb\u52d9\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528 Redis \u9396\u4f86\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u7bc0\u9ede\u80fd\u5920\u7372\u53d6\u9396\u4e26\u57f7\u884c\u4efb\u52d9\u3002<\/p>\n

\nfunction executeTask() {\n    $lockKey = \"task_lock\";\n    $lockValue = uniqid();\n    $lockExpire = 10; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\n\n    \/\/ \u5617\u8a66\u7372\u53d6\u9396\n    if (redis()->set($lockKey, $lockValue, ['nx', 'ex' => $lockExpire])) {\n        \/\/ \u57f7\u884c\u4efb\u52d9\n        performTask();\n\n        \/\/ \u91cb\u653e\u9396\n        if (redis()->get($lockKey) === $lockValue) {\n            redis()->del($lockKey);\n        }\n    }\n}\n<\/code><\/pre>\n
2. \u8cfc\u7269\u8eca\u7d50\u7b97<\/h3>\n
\u5728\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u7576\u7528\u6236\u7d50\u7b97\u8cfc\u7269\u8eca\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u591a\u500b\u7528\u6236\u540c\u6642\u5617\u8a66\u8cfc\u8cb7\u76f8\u540c\u5546\u54c1\u7684\u60c5\u6cc1\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528 Redis \u9396\u4f86\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u7528\u6236\u80fd\u5920\u6210\u529f\u7d50\u7b97\uff0c\u5f9e\u800c\u907f\u514d\u8d85\u8ce3\u7684\u554f\u984c\u3002<\/p>\n
\nfunction checkout($userId, $productId) {\n    $lockKey = \"checkout_lock_{$productId}\";\n    $lockValue = uniqid();\n    $lockExpire = 5; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\n\n    if (redis()->set($lockKey, $lockValue, ['nx', 'ex' => $lockExpire])) {\n        \/\/ \u6aa2\u67e5\u5eab\u5b58\n        if (checkStock($productId)) {\n            \/\/ \u8655\u7406\u7d50\u7b97\n            processCheckout($userId, $productId);\n        }\n\n        \/\/ \u91cb\u653e\u9396\n        if (redis()->get($lockKey) === $lockValue) {\n            redis()->del($lockKey);\n        }\n    }\n}\n<\/code><\/pre>\n
3. \u6578\u64da\u66f4\u65b0<\/h3>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u5c0d\u6578\u64da\u9032\u884c\u66f4\u65b0\u64cd\u4f5c\uff0c\u4f8b\u5982\u7528\u6236\u8cc7\u6599\u7684\u4fee\u6539\u3002\u70ba\u4e86\u9632\u6b62\u6578\u64da\u7af6\u722d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 Redis \u9396\u4f86\u78ba\u4fdd\u5728\u66f4\u65b0\u904e\u7a0b\u4e2d\u4e0d\u6703\u6709\u5176\u4ed6\u9032\u7a0b\u5e72\u64fe\u3002<\/p>\n
\nfunction updateUserProfile($userId, $data) {\n    $lockKey = \"user_profile_lock_{$userId}\";\n    $lockValue = uniqid();\n    $lockExpire = 10; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\n\n    if (redis()->set($lockKey, $lockValue, ['nx', 'ex' => $lockExpire])) {\n        \/\/ \u66f4\u65b0\u7528\u6236\u8cc7\u6599\n        saveUserProfile($userId, $data);\n\n        \/\/ \u91cb\u653e\u9396\n        if (redis()->get($lockKey) === $lockValue) {\n            redis()->del($lockKey);\n        }\n    }\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
Redis \u9396\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\uff0c\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u6578\u64da\u4e00\u81f4\u6027\u548c\u4e26\u767c\u63a7\u5236\u7684\u554f\u984c\u3002\u7121\u8ad6\u662f\u5728\u4efb\u52d9\u8abf\u5ea6\u3001\u8cfc\u7269\u8eca\u7d50\u7b97\u9084\u662f\u6578\u64da\u66f4\u65b0\u7b49\u5834\u666f\u4e2d\uff0c\u5408\u7406\u4f7f\u7528 Redis \u9396\u90fd\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7ba1\u7406\u8cc7\u6e90\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u548c\u638c\u63e1 Redis \u9396\u7684\u61c9\u7528\u5834\u666f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u548c\u6578\u64da\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f \u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Redis\u9396\u7684\u5be6\u969b\u61c9\u7528\u5834\u666f\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u4f75\u767c\u64cd\u4f5c\uff0c\u63d0\u5347\u7cfb\u7d71\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-97510","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97510","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=97510"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97510\/revisions"}],"predecessor-version":[{"id":97511,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97510\/revisions\/97511"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}