{"id":152441,"date":"2024-11-01T23:03:22","date_gmt":"2024-11-01T15:03:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152441\/"},"modified":"2024-11-01T23:03:23","modified_gmt":"2024-11-01T15:03:23","slug":"%e5%b1%a4%e5%b1%a4%e9%8e%96%e5%ae%9a%ef%bc%8c%e7%a9%a9%e5%81%a5%e6%87%89%e5%b0%8dredis%e9%9b%86%e7%be%a4%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c%ef%bc%88redis%e9%9b%86%e7%be%a4%e9%8e%96%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152441\/","title":{"rendered":"\u5c64\u5c64\u9396\u5b9a\uff0c\u7a69\u5065\u61c9\u5c0dRedis\u96c6\u7fa4\u4e26\u767c\u554f\u984c\uff08redis\u96c6\u7fa4\u9396\u8655\u7406\u4e26\u767c\uff09"},"content":{"rendered":"<h1 id=\"%e5%b1%a4%e5%b1%a4%e9%8e%96%e5%ae%9a%ef%bc%8c%e7%a9%a9%e5%81%a5%e6%87%89%e5%b0%8dredis%e9%9b%86%e7%be%a4%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c-IHGuBdaffQ\">\u5c64\u5c64\u9396\u5b9a\uff0c\u7a69\u5065\u61c9\u5c0dRedis\u96c6\u7fa4\u4e26\u767c\u554f\u984c<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u6027\u80fd\u548c\u4f4e\u5ef6\u9072\u7684\u61c9\u7528\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7684\u64f4\u5c55\uff0cRedis\u96c6\u7fa4\u7684\u4e26\u767c\u554f\u984c\u9010\u6f38\u6210\u70ba\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u91cd\u8981\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u5c64\u5c64\u9396\u5b9a\u6280\u8853\u4f86\u7a69\u5065\u61c9\u5c0dRedis\u96c6\u7fa4\u4e2d\u7684\u4e26\u767c\u554f\u984c\u3002<\/p>\n<h2 id=\"redis%e9%9b%86%e7%be%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-IHGuBdaffQ\">Redis\u96c6\u7fa4\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u5141\u8a31\u7528\u6236\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e4b\u9593\u5206\u914d\u6578\u64da\u3002\u9019\u7a2e\u67b6\u69cb\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u5920\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u4fdd\u6301\u826f\u597d\u7684\u6027\u80fd\u3002Redis\u96c6\u7fa4\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u5206\u7247\uff1a\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u6e1b\u5c11\u55ae\u500b\u7bc0\u9ede\u7684\u8ca0\u64d4\u3002<\/li>\n<li>\u9ad8\u53ef\u7528\u6027\uff1a\u901a\u904e\u4e3b\u5f9e\u8907\u88fd\u548c\u6545\u969c\u8f49\u79fb\u6a5f\u5236\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/li>\n<li>\u81ea\u52d5\u5206\u7247\uff1a\u6839\u64da\u54c8\u5e0c\u69fd\u81ea\u52d5\u5c07\u6578\u64da\u5206\u914d\u5230\u4e0d\u540c\u7684\u7bc0\u9ede\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c%e7%9a%84%e6%a0%b9%e6%ba%90-IHGuBdaffQ\">\u4e26\u767c\u554f\u984c\u7684\u6839\u6e90<\/h2>\n<p>\u5728Redis\u96c6\u7fa4\u4e2d\uff0c\u4e26\u767c\u554f\u984c\u4e3b\u8981\u6e90\u65bc\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5c0d\u540c\u4e00\u6578\u64da\u9032\u884c\u8b80\u5beb\u64cd\u4f5c\u3002\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3001\u7af6\u722d\u689d\u4ef6\u548c\u6b7b\u9396\u7b49\u554f\u984c\u3002\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e0b\uff0c\u9019\u4e9b\u554f\u984c\u6703\u66f4\u52a0\u660e\u986f\uff0c\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e5%b1%a4%e5%b1%a4%e9%8e%96%e5%ae%9a%e6%8a%80%e8%a1%93%e7%9a%84%e6%87%89%e7%94%a8-IHGuBdaffQ\">\u5c64\u5c64\u9396\u5b9a\u6280\u8853\u7684\u61c9\u7528<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7aRedis\u96c6\u7fa4\u4e2d\u7684\u4e26\u767c\u554f\u984c\uff0c\u5c64\u5c64\u9396\u5b9a\u6280\u8853\u662f\u4e00\u7a2e\u53ef\u884c\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u9019\u7a2e\u6280\u8853\u901a\u904e\u5728\u4e0d\u540c\u7684\u5c64\u7d1a\u4e0a\u5c0d\u8cc7\u6e90\u9032\u884c\u9396\u5b9a\uff0c\u4f86\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u4ee5\u4e0b\u662f\u5c64\u5c64\u9396\u5b9a\u7684\u5e7e\u500b\u95dc\u9375\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e9%8e%96%e5%ae%9a%e7%b2%92%e5%ba%a6%e7%9a%84%e9%81%b8%e6%93%87-IHGuBdaffQ\">1. \u9396\u5b9a\u7c92\u5ea6\u7684\u9078\u64c7<\/h3>\n<p>\u5728\u5be6\u65bd\u5c64\u5c64\u9396\u5b9a\u6642\uff0c\u9996\u5148\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u9396\u5b9a\u7c92\u5ea6\u3002\u9396\u5b9a\u7c92\u5ea6\u904e\u5927\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\uff0c\u800c\u9396\u5b9a\u7c92\u5ea6\u904e\u5c0f\u5247\u53ef\u80fd\u589e\u52a0\u9396\u7684\u7ba1\u7406\u958b\u92b7\u3002\u901a\u5e38\uff0c\u5efa\u8b70\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7c92\u5ea6\uff0c\u4f8b\u5982\u5c0d\u65bc\u7528\u6236\u8cc7\u6599\u7684\u66f4\u65b0\uff0c\u53ef\u4ee5\u9078\u64c7\u4ee5\u7528\u6236ID\u70ba\u7c92\u5ea6\u9032\u884c\u9396\u5b9a\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-IHGuBdaffQ\">2. \u4f7f\u7528Redis\u7684\u5206\u5e03\u5f0f\u9396<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u662f\u4f7f\u7528SETNX\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>function acquireLock(lockKey, lockValue, expireTime) {\n    if (redis.set(lockKey, lockValue, 'NX', 'EX', expireTime)) {\n        return true; \/\/ \u9396\u5b9a\u6210\u529f\n    }\n    return false; \/\/ \u9396\u5b9a\u5931\u6557\n}<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u53ea\u6709\u7576\u9396\u4e0d\u5b58\u5728\u6642\uff0cSETNX\u547d\u4ee4\u624d\u6703\u6210\u529f\uff0c\u5f9e\u800c\u5be6\u73fe\u9396\u5b9a\u3002<\/p>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e9%87%8b%e6%94%be-IHGuBdaffQ\">3. \u9396\u7684\u91cb\u653e<\/h3>\n<p>\u5728\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u5fc5\u9808\u53ca\u6642\u91cb\u653e\u9396\uff0c\u4ee5\u907f\u514d\u6b7b\u9396\u7684\u60c5\u6cc1\u3002\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e2d\u9700\u8981\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u5ba2\u6236\u7aef\u624d\u80fd\u91cb\u653e\u9396\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u91cb\u653e\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>function releaseLock(lockKey, lockValue) {\n    if (redis.get(lockKey) === lockValue) {\n        redis.del(lockKey); \/\/ \u91cb\u653e\u9396\n    }\n}<\/code><\/pre>\n<h2 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href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5c64\u5c64\u9396\u5b9a\u6280\u8853\u6709\u6548\u61c9\u5c0dRedis\u96c6\u7fa4\u7684\u4e26\u767c\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u7cfb\u7d71\u7a69\u5b9a\u6027\uff0c\u63d0\u5347\u6027\u80fd\u8207\u53ef\u9760\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-152441","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152441","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=152441"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152441\/revisions"}],"predecessor-version":[{"id":152442,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152441\/revisions\/152442"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}