{"id":129381,"date":"2024-10-26T21:12:21","date_gmt":"2024-10-26T13:12:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129381\/"},"modified":"2024-10-26T21:12:22","modified_gmt":"2024-10-26T13:12:22","slug":"redis%e9%8e%96%e6%a9%9f%e5%88%b6%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e7%9a%84%e4%b8%a6%e7%99%bc%e6%8e%a7%e5%88%b6%ef%bc%88redis%e9%8e%96%e6%a9%9f%e5%88%b6%e6%8e%a7%e5%88%b6%e4%b8%a6%e7%99%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129381\/","title":{"rendered":"Redis\u9396\u6a5f\u5236\u5be6\u73fe\u6709\u6548\u7684\u4e26\u767c\u63a7\u5236\uff08redis\u9396\u6a5f\u5236\u63a7\u5236\u4e26\u767c\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e6%a9%9f%e5%88%b6%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e7%9a%84%e4%b8%a6%e7%99%bc%e6%8e%a7%e5%88%b6-wIbJIeinpU\">Redis\u9396\u6a5f\u5236\u5be6\u73fe\u6709\u6548\u7684\u4e26\u767c\u63a7\u5236<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4e26\u767c\u63a7\u5236\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u554f\u984c\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u64f4\u5c55\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u8b8a\u5f97\u6108\u52a0\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u6a5f\u5236\u4f86\u5be6\u73fe\u4e26\u767c\u63a7\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u6a5f\u5236\u7684\u539f\u7406\u53ca\u5176\u5be6\u73fe\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%e6%a9%9f%e5%88%b6%ef%bc%9f-wIbJIeinpU\">\u4ec0\u9ebc\u662fRedis\u9396\u6a5f\u5236\uff1f<\/h2>\n<p>Redis\u9396\u6a5f\u5236\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6280\u8853\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u540c\u6642\u4fee\u6539\u540c\u4e00\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002Redis\u9396\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u539f\u5b50\u64cd\u4f5c\u548c\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-wIbJIeinpU\">Redis\u9396\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>Redis\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u4f7f\u7528\u4e00\u500b\u9375\u4f86\u8868\u793a\u9396\u7684\u72c0\u614b\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u9019\u500b\u9375\u3002\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u7372\u53d6\uff1b\u5982\u679c\u8a2d\u7f6e\u5931\u6557\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\u3002<\/p>\n<h3 id=\"setnx%e5%91%bd%e4%bb%a4-wIbJIeinpU\">SETNX\u547d\u4ee4<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86SETNX\uff08Set if Not eXists\uff09\u547d\u4ee4\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u3002\u9019\u500b\u547d\u4ee4\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u7528\u65bc\u9396\u7684\u5be6\u73fe\u3002<\/p>\n<pre><code>SETNX lock_key unique_lock_value\n<\/code><\/pre>\n<p>\u5728\u9019\u88e1\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\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h3 id=\"%e9%8e%96%e7%9a%84%e9%87%8b%e6%94%be-wIbJIeinpU\">\u9396\u7684\u91cb\u653e<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u540c\u6a23\u91cd\u8981\u3002\u70ba\u4e86\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u80fd\u5920\u91cb\u653e\u9396\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Lua\u8173\u672c\u4f86\u9032\u884c\u539f\u5b50\u64cd\u4f5c\u3002<\/p>\n<pre><code>\nif redis.call(\"get\", KEYS[1]) == ARGV[1] then\n    return redis.call(\"del\", KEYS[1])\nelse\n    return 0\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5Lua\u8173\u672c\u9996\u5148\u6aa2\u67e5\u7576\u524d\u9396\u7684\u503c\u662f\u5426\u8207\u6301\u6709\u8005\u7684\u552f\u4e00\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-wIbJIeinpU\">Redis\u9396\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e5%84%aa%e9%bb%9e-wIbJIeinpU\">\u512a\u9ede<\/h3>\n<ul>\n<li>\u9ad8\u6548\uff1aRedis\u7684\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u652f\u6301\u9ad8\u4e26\u767c\u7684\u9396\u8acb\u6c42\u3002<\/li>\n<li>\u7c21\u55ae\uff1a\u4f7f\u7528Redis\u5be6\u73fe\u9396\u7684\u908f\u8f2f\u76f8\u5c0d\u7c21\u55ae\uff0c\u6613\u65bc\u7406\u89e3\u548c\u5be6\u73fe\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-wIbJIeinpU\">\u7f3a\u9ede<\/h3>\n<ul>\n<li>\u53ef\u80fd\u51fa\u73fe\u6b7b\u9396\uff1a\u5982\u679c\u9032\u7a0b\u5728\u6301\u6709\u9396\u7684\u60c5\u6cc1\u4e0b\u5d29\u6f70\uff0c\u9396\u5c07\u7121\u6cd5\u91cb\u653e\u3002<\/li>\n<li>\u9700\u8981\u984d\u5916\u7684\u7ba1\u7406\uff1a\u9700\u8981\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-wIbJIeinpU\">\u7d50\u8ad6<\/h2>\n<p>Redis\u9396\u6a5f\u5236\u662f\u4e00\u7a2e\u6709\u6548\u7684\u4e26\u767c\u63a7\u5236\u624b\u6bb5\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u4f7f\u7528SETNX\u547d\u4ee4\u548cLua\u8173\u672c\uff0c\u6211\u5011\u53ef\u4ee5\u5be6\u73fe\u9ad8\u6548\u4e14\u5b89\u5168\u7684\u9396\u6a5f\u5236\u3002\u7136\u800c\uff0c\u958b\u767c\u8005\u5728\u4f7f\u7528Redis\u9396\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u6f5b\u5728\u7684\u554f\u984c\uff0c\u5982\u6b7b\u9396\u548c\u9396\u7684\u7ba1\u7406\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u4e26\u767c\u63a7\u5236\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u67b6\u69cb\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u6a5f\u5236\u5982\u4f55\u5be6\u73fe\u6709\u6548\u7684\u4e26\u767c\u63a7\u5236\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\u6027\uff0c\u78ba\u4fdd\u591a\u7dda\u7a0b\u74b0\u5883\u4e0b\u7684\u5b89\u5168\u64cd\u4f5c\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-129381","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129381","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=129381"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129381\/revisions"}],"predecessor-version":[{"id":129382,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129381\/revisions\/129382"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}