{"id":159107,"date":"2024-11-03T11:36:19","date_gmt":"2024-11-03T03:36:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159107\/"},"modified":"2024-11-03T11:36:20","modified_gmt":"2024-11-03T03:36:20","slug":"%e7%b4%85%e8%89%b2%e7%9a%84-redis-%e7%b7%a9%e5%ad%98%e7%b7%a0%e9%80%a0%e4%ba%92%e6%96%a5%e7%9a%84%e8%81%af%e7%b9%ab%ef%bc%88redis-%e7%b7%a9%e5%ad%98%e4%ba%92%e6%96%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159107\/","title":{"rendered":"\u7d05\u8272\u7684 Redis \u7de9\u5b58\u7de0\u9020\u4e92\u65a5\u7684\u806f\u7e6b\uff08Redis \u7de9\u5b58\u4e92\u65a5\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%85%e8%89%b2%e7%9a%84-redis-%e7%b7%a9%e5%ad%98%e7%b7%a0%e9%80%a0%e4%ba%92%e6%96%a5%e7%9a%84%e8%81%af%e7%b9%ab%ef%bc%88redis-%e7%b7%a9%e5%ad%98%e4%ba%92%e6%96%a5%ef%bc%89-LEjdBoZMpx\">\u7d05\u8272\u7684 Redis \u7de9\u5b58\u7de0\u9020\u4e92\u65a5\u7684\u806f\u7e6b\uff08Redis \u7de9\u5b58\u4e92\u65a5\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u958b\u767c\u8005\u5011\u9700\u8981\u5c0b\u627e\u66f4\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u6578\u64da\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u9996\u9078\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u7de9\u5b58\u7684\u4e92\u65a5\u7279\u6027\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e7%b7%a9%e5%ad%98%ef%bc%9f-LEjdBoZMpx\">\u4ec0\u9ebc\u662f Redis \u7de9\u5b58\uff1f<\/h2>\n<p>Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5b83\u901a\u5e38\u7528\u4f5c\u6578\u64da\u5eab\u3001\u7de9\u5b58\u548c\u6d88\u606f\u4ee3\u7406\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u6578\u64da\u5b58\u53d6\u7684\u5834\u666f\u3002<\/p>\n<h2 id=\"redis-%e7%b7%a9%e5%ad%98%e7%9a%84%e4%ba%92%e6%96%a5%e7%89%b9%e6%80%a7-LEjdBoZMpx\">Redis \u7de9\u5b58\u7684\u4e92\u65a5\u7279\u6027<\/h2>\n<p>\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis \u7de9\u5b58\u7684\u4e92\u65a5\u7279\u6027\u4f7f\u5f97\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u9019\u7a2e\u7279\u6027\u4e3b\u8981\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u5b9a\u6a5f\u5236\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 SETNX \u547d\u4ee4\u4f86\u5be6\u73fe\u4e92\u65a5\u9396\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u5fc5\u9808\u7b49\u5f85\uff0c\u76f4\u5230\u9396\u88ab\u91cb\u653e\u3002<\/li>\n<li><strong>\u904e\u671f\u6642\u9593\uff1a<\/strong>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0cRedis \u5141\u8a31\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u67d0\u500b\u9032\u7a0b\u56e0\u6545\u969c\u672a\u80fd\u91cb\u653e\u9396\uff0c\u5176\u4ed6\u9032\u7a0b\u4e5f\u80fd\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u7372\u5f97\u9396\u3002<\/li>\n<li><strong>Lua \u8173\u672c\uff1a<\/strong>Redis \u652f\u6301 Lua \u8173\u672c\uff0c\u9019\u4f7f\u5f97\u591a\u500b\u64cd\u4f5c\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u539f\u5b50\u6027\u5730\u57f7\u884c\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u5728\u5ba2\u6236\u7aef\u548c\u670d\u52d9\u5668\u4e4b\u9593\u7684\u591a\u6b21\u5f80\u8fd4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%b8%ad%e7%9a%84%e7%a4%ba%e4%be%8b-LEjdBoZMpx\">\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Redis \u5be6\u73fe\u4e92\u65a5\u9396\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>local lock_key = \"my_lock\"\nlocal lock_value = \"locked\"\nlocal lock_timeout = 5000 -- \u9396\u7684\u8d85\u6642\u6642\u9593\uff08\u6beb\u79d2\uff09\n\n-- \u5617\u8a66\u7372\u53d6\u9396\nlocal result = redis.call(\"SETNX\", lock_key, lock_value)\nif result == 1 then\n    -- \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\n    redis.call(\"PEXPIRE\", lock_key, lock_timeout)\n    -- \u57f7\u884c\u9700\u8981\u4e92\u65a5\u7684\u64cd\u4f5c\n    -- ...\n    -- \u91cb\u653e\u9396\n    redis.call(\"DEL\", lock_key)\nelse\n    -- \u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u5f97\uff0c\u8655\u7406\u76f8\u61c9\u908f\u8f2f\nend\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 SETNX \u547d\u4ee4\u4f86\u5617\u8a66\u7372\u53d6\u9396\u3002\u5982\u679c\u6210\u529f\u7372\u53d6\u9396\uff0c\u5247\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u4e26\u57f7\u884c\u9700\u8981\u4e92\u65a5\u7684\u64cd\u4f5c\uff0c\u6700\u5f8c\u91cb\u653e\u9396\u3002\u5982\u679c\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u5f97\uff0c\u5247\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LEjdBoZMpx\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7de9\u5b58\u7684\u4e92\u65a5\u7279\u6027\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\u63d0\u4f9b\u4e86\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u9396\u5b9a\u6a5f\u5236\u3001\u904e\u671f\u6642\u9593\u548c Lua \u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u5408\u7406\u5229\u7528 Redis \u7684\u9019\u4e9b\u7279\u6027\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u7d05\u8272\u7684 Redis \u7de9\u5b58\u5982\u4f55\u5be6\u73fe\u4e92\u65a5\u806f\u7e6b\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u78ba\u4fdd\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-159107","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159107","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=159107"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159107\/revisions"}],"predecessor-version":[{"id":159108,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159107\/revisions\/159108"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}