{"id":163799,"date":"2024-11-05T02:31:28","date_gmt":"2024-11-04T18:31:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163799\/"},"modified":"2024-11-05T02:31:29","modified_gmt":"2024-11-04T18:31:29","slug":"%e8%a7%a3%e6%b1%ba%e9%9b%86%e7%be%a4%e4%b8%8bredis%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e6%8c%91%e6%88%b0%ef%bc%88%e9%9b%86%e7%be%a4%e4%b8%8bredis%e9%8e%96%e7%9a%84%e5%95%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163799\/","title":{"rendered":"\u89e3\u6c7a\u96c6\u7fa4\u4e0bRedis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6311\u6230\uff08\u96c6\u7fa4\u4e0bredis\u9396\u7684\u554f\u984c\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%ba%e9%9b%86%e7%be%a4%e4%b8%8bredis%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e6%8c%91%e6%88%b0-btTAdovKhx\">\u89e3\u6c7a\u96c6\u7fa4\u4e0bRedis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6311\u6230<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7de9\u5b58\u548c\u6d88\u606f\u968a\u5217\u7b49\u5834\u666f\u3002\u7279\u5225\u662f\u5728\u9700\u8981\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u60c5\u6cc1\u4e0b\uff0cRedis\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u7136\u800c\uff0c\u7576Redis\u904b\u884c\u5728\u96c6\u7fa4\u6a21\u5f0f\u4e0b\u6642\uff0c\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u537b\u9762\u81e8\u8457\u4e00\u7cfb\u5217\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e9b\u6311\u6230\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-btTAdovKhx\">Redis\u5206\u4f48\u5f0f\u9396\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u5206\u4f48\u5f0f\u9396\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u4e4b\u9593\u5354\u8abf\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002Redis\u7684\u5206\u4f48\u5f0f\u9396\u901a\u5e38\u57fa\u65bcSETNX\u547d\u4ee4\uff08Set if Not eXists\uff09\u4f86\u5be6\u73fe\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u552f\u4e00\u7684\u9375\uff0c\u82e5\u6210\u529f\u5247\u7372\u5f97\u9396\uff0c\u5426\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\u3002<\/p>\n<pre><code>SET lock_key unique_value NX PX 30000\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u4e2d\uff0c<code>NX<\/code>\u8868\u793a\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u6642\u624d\u8a2d\u7f6e\uff0c<code>PX<\/code>\u5247\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h2 id=\"%e9%9b%86%e7%be%a4%e6%a8%a1%e5%bc%8f%e4%b8%8b%e7%9a%84%e6%8c%91%e6%88%b0-btTAdovKhx\">\u96c6\u7fa4\u6a21\u5f0f\u4e0b\u7684\u6311\u6230<\/h2>\n<p>\u5728Redis\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6311\u6230\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9375\u7684\u5206\u4f48\uff1a<\/strong>\u5728Redis\u96c6\u7fa4\u4e2d\uff0c\u9375\u662f\u6839\u64da\u54c8\u5e0c\u69fd\u5206\u4f48\u5230\u4e0d\u540c\u7684\u7bc0\u9ede\u4e0a\u7684\u3002\u9019\u610f\u5473\u8457\u5982\u679c\u9396\u7684\u9375\u548c\u9700\u8981\u8a2a\u554f\u7684\u8cc7\u6e90\u4e0d\u5728\u540c\u4e00\u500b\u54c8\u5e0c\u69fd\u4e2d\uff0c\u5247\u7121\u6cd5\u4fdd\u8b49\u9396\u7684\u6709\u6548\u6027\u3002<\/li>\n<li><strong>\u7db2\u7d61\u5ef6\u9072\u548c\u6545\u969c\uff1a<\/strong>\u96c6\u7fa4\u4e2d\u7684\u7bc0\u9ede\u4e4b\u9593\u7684\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u5c0e\u81f4\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u51fa\u73fe\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002\u6b64\u5916\uff0c\u7bc0\u9ede\u6545\u969c\u53ef\u80fd\u5c0e\u81f4\u9396\u7684\u6301\u6709\u8005\u7121\u6cd5\u6b63\u5e38\u91cb\u653e\u9396\u3002<\/li>\n<li><strong>\u9396\u7684\u904e\u671f\u554f\u984c\uff1a<\/strong>\u5728\u96c6\u7fa4\u74b0\u5883\u4e2d\uff0c\u9396\u7684\u904e\u671f\u6642\u9593\u9700\u8981\u8b39\u614e\u8a2d\u7f6e\u3002\u5982\u679c\u904e\u671f\u6642\u9593\u904e\u77ed\uff0c\u53ef\u80fd\u5c0e\u81f4\u9396\u88ab\u610f\u5916\u91cb\u653e\uff1b\u5982\u679c\u904e\u671f\u6642\u9593\u904e\u9577\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6e90\u7684\u9577\u6642\u9593\u4f54\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-btTAdovKhx\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u4e0a\u8ff0\u6311\u6230\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8redisson%e7%ad%89%e9%ab%98%e7%b4%9a%e5%ba%ab-btTAdovKhx\">1. \u4f7f\u7528Redisson\u7b49\u9ad8\u7d1a\u5eab<\/h3>\n<p>Redisson\u662f\u4e00\u500b\u57fa\u65bcRedis\u7684Java\u5ba2\u6236\u7aef\uff0c\u63d0\u4f9b\u4e86\u5206\u4f48\u5f0f\u9396\u7684\u9ad8\u7d1a\u62bd\u8c61\u3002\u5b83\u80fd\u5920\u81ea\u52d5\u8655\u7406\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\uff0c\u4e26\u4e14\u652f\u6301\u9396\u7684\u81ea\u52d5\u7e8c\u671f\u529f\u80fd\uff0c\u5f9e\u800c\u6e1b\u5c11\u4e86\u624b\u52d5\u7ba1\u7406\u9396\u7684\u8907\u96dc\u6027\u3002<\/p>\n<h3 id=\"2-%e9%8e%96%e7%9a%84%e5%94%af%e4%b8%80%e6%80%a7%e5%92%8c%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%ae%a1%e7%90%86-btTAdovKhx\">2. \u9396\u7684\u552f\u4e00\u6027\u548c\u904e\u671f\u6642\u9593\u7ba1\u7406<\/h3>\n<p>\u5728\u96c6\u7fa4\u74b0\u5883\u4e2d\uff0c\u61c9\u78ba\u4fdd\u9396\u7684\u552f\u4e00\u6027\uff0c\u4e26\u5408\u7406\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u53ef\u4ee5\u4f7f\u7528UUID\u4f5c\u70ba\u9396\u7684\u552f\u4e00\u6a19\u8b58\uff0c\u4e26\u6839\u64da\u696d\u52d9\u9700\u6c42\u52d5\u614b\u8abf\u6574\u904e\u671f\u6642\u9593\u3002<\/p>\n<pre><code>SET lock_key unique_uuid NX PX 30000\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-btTAdovKhx\">3. \u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>Redis\u652f\u6301Lua\u8173\u672c\uff0c\u53ef\u4ee5\u5c07\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u908f\u8f2f\u5c01\u88dd\u5728\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\u4e2d\uff0c\u5f9e\u800c\u907f\u514d\u56e0\u7db2\u7d61\u5ef6\u9072\u5c0e\u81f4\u7684\u9396\u4e0d\u4e00\u81f4\u554f\u984c\u3002<\/p>\n<pre><code>\nlocal lock_key = KEYS[1]\nlocal unique_value = ARGV[1]\nif redis.call(\"SETNX\", lock_key, unique_value) == 1 then\n    redis.call(\"PEXPIRE\", lock_key, ARGV[2])\n    return 1\nelse\n    return 0\nend\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-btTAdovKhx\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u96c6\u7fa4\u6a21\u5f0f\u4e0b\u5be6\u73feRedis\u7684\u5206\u4f48\u5f0f\u9396\u96d6\u7136\u9762\u81e8\u8af8\u591a\u6311\u6230\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u4f7f\u7528\u9ad8\u7d1a\u5eab\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u548c\u7b56\u7565\uff0c\u80fd\u5920\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u8cc7\u6e90\u7684\u6709\u6548\u5229\u7528\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8a0e\u5728Redis\u96c6\u7fa4\u74b0\u5883\u4e2d\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6311\u6230\uff0c\u5206\u6790\u9396\u7684\u554f\u984c\u53ca\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\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-163799","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163799","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=163799"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163799\/revisions"}],"predecessor-version":[{"id":163800,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163799\/revisions\/163800"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}