{"id":129329,"date":"2024-10-26T20:48:21","date_gmt":"2024-10-26T12:48:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129329\/"},"modified":"2024-10-26T20:48:22","modified_gmt":"2024-10-26T12:48:22","slug":"redis%e9%8e%96%e7%9a%84%e5%88%86%e9%a1%9e%e5%8f%8a%e5%85%b6%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f%ef%bc%88redis%e9%8e%96%e7%9a%84%e9%a1%9e%e5%9e%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129329\/","title":{"rendered":"Redis\u9396\u7684\u5206\u985e\u53ca\u5176\u4f7f\u7528\u65b9\u5f0f\uff08redis\u9396\u7684\u985e\u578b\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e7%9a%84%e5%88%86%e9%a1%9e%e5%8f%8a%e5%85%b6%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f%ef%bc%88redis%e9%8e%96%e7%9a%84%e9%a1%9e%e5%9e%8b%ef%bc%89-eFBWeuFTzK\">Redis\u9396\u7684\u5206\u985e\u53ca\u5176\u4f7f\u7528\u65b9\u5f0f\uff08redis\u9396\u7684\u985e\u578b\uff09<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u4f7f\u7528\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u7684\u5206\u985e\u53ca\u5176\u4f7f\u7528\u65b9\u5f0f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9078\u64c7\u5408\u9069\u7684\u9396\u4f86\u89e3\u6c7a\u7279\u5b9a\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-eFBWeuFTzK\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>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\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\u901a\u5e38\u57fa\u65bcSETNX\u547d\u4ee4\uff0c\u8a72\u547d\u4ee4\u53ef\u4ee5\u5728\u9375\u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u5f9e\u800c\u5be6\u73fe\u9396\u7684\u7372\u53d6\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%88%86%e9%a1%9e-eFBWeuFTzK\">Redis\u9396\u7684\u5206\u985e<\/h2>\n<h3 id=\"1-%e7%b0%a1%e5%96%ae%e9%8e%96-eFBWeuFTzK\">1. \u7c21\u55ae\u9396<\/h3>\n<p>\u7c21\u55ae\u9396\u662f\u6700\u57fa\u672c\u7684\u9396\u985e\u578b\uff0c\u901a\u5e38\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u9375\uff0c\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u7372\u5f97\u9396\uff1b\u5982\u679c\u9375\u5df2\u5b58\u5728\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u53d6\u3002<\/p>\n<pre><code>SETNX lock_key 1\n<\/code><\/pre>\n<p>\u7c21\u55ae\u9396\u7684\u7f3a\u9ede\u5728\u65bc\u5b83\u4e0d\u652f\u6301\u9396\u7684\u81ea\u52d5\u91cb\u653e\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\u7684\u60c5\u6cc1\u3002\u56e0\u6b64\uff0c\u901a\u5e38\u9700\u8981\u624b\u52d5\u91cb\u653e\u9396\u3002<\/p>\n<h3 id=\"2-%e4%ba%92%e6%96%a5%e9%8e%96-eFBWeuFTzK\">2. \u4e92\u65a5\u9396<\/h3>\n<p>\u4e92\u65a5\u9396\u662f\u5c0d\u7c21\u55ae\u9396\u7684\u64f4\u5c55\uff0c\u901a\u5e38\u6703\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002\u9019\u53ef\u4ee5\u901a\u904eSET\u547d\u4ee4\u7684EX\u548cNX\u9078\u9805\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>SET lock_key 1 EX 10 NX\n<\/code><\/pre>\n<p>\u9019\u6a23\u8a2d\u7f6e\u5f8c\uff0c\u9396\u6703\u572810\u79d2\u5f8c\u81ea\u52d5\u91cb\u653e\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u6b7b\u9396\u7684\u98a8\u96aa\u3002<\/p>\n<h3 id=\"3-%e5%8f%af%e9%87%8d%e5%85%a5%e9%8e%96-eFBWeuFTzK\">3. \u53ef\u91cd\u5165\u9396<\/h3>\n<p>\u53ef\u91cd\u5165\u9396\u5141\u8a31\u540c\u4e00\u500b\u9032\u7a0b\u591a\u6b21\u7372\u53d6\u9396\u800c\u4e0d\u6703\u9020\u6210\u6b7b\u9396\u3002\u9019\u901a\u5e38\u9700\u8981\u5728\u9396\u4e2d\u8a18\u9304\u7372\u53d6\u9396\u7684\u6b21\u6578\uff0c\u4e26\u5728\u91cb\u653e\u9396\u6642\u6aa2\u67e5\u6b21\u6578\u3002<\/p>\n<pre><code>if (lock_count == 0) {\n    SET lock_key 1 EX 10 NX\n}\nlock_count++\n<\/code><\/pre>\n<p>\u7576\u9032\u7a0b\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u53ea\u6709\u7576lock_count\u6e1b\u5c11\u52300\u6642\uff0c\u624d\u6703\u91cb\u653e\u9396\u3002<\/p>\n<h3 id=\"4-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-eFBWeuFTzK\">4. \u5206\u5e03\u5f0f\u9396<\/h3>\n<p>\u5206\u5e03\u5f0f\u9396\u662f\u70ba\u4e86\u89e3\u6c7a\u591a\u500b\u9032\u7a0b\u5728\u4e0d\u540c\u4f3a\u670d\u5668\u4e0a\u904b\u884c\u6642\u7684\u9396\u554f\u984c\u3002Redis\u63d0\u4f9b\u4e86Redisson\u7b49\u5eab\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff0c\u9019\u4e9b\u5eab\u901a\u5e38\u6703\u4f7f\u7528ZSET\u4f86\u7ba1\u7406\u9396\u7684\u72c0\u614b\u3002<\/p>\n<pre><code>RLock lock = redisson.getLock(\"lock_key\");\nlock.lock();\ntry {\n    \/\/ \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n} finally {\n    lock.unlock();\n}\n<\/code><\/pre>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f-eFBWeuFTzK\">Redis\u9396\u7684\u4f7f\u7528\u65b9\u5f0f<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u9396\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7684\u7c92\u5ea6\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9396\u7c92\u5ea6\uff0c\u904e\u65bc\u7d30\u7c92\u5ea6\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u800c\u904e\u65bc\u7c97\u7c92\u5ea6\u5247\u53ef\u80fd\u5f71\u97ff\u4e26\u767c\u6027\u3002<\/li>\n<li><strong>\u9396\u7684\u904e\u671f\u6642\u9593\uff1a<\/strong>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u4ee5\u9632\u6b62\u6b7b\u9396\uff0c\u4e26\u6839\u64da\u696d\u52d9\u908f\u8f2f\u8abf\u6574\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u7372\u53d6\u9396\u5931\u6557\u6642\uff0c\u61c9\u6709\u76f8\u61c9\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4f8b\u5982\u91cd\u8a66\u6216\u5831\u8b66\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eFBWeuFTzK\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u7684\u4f7f\u7528\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u4e00\u81f4\u6027\u554f\u984c\u3002\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9078\u64c7\u7c21\u55ae\u9396\u3001\u4e92\u65a5\u9396\u3001\u53ef\u91cd\u5165\u9396\u6216\u5206\u5e03\u5f0f\u9396\u7b49\u4e0d\u540c\u985e\u578b\u7684\u9396\u3002\u4e86\u89e3\u9019\u4e9b\u9396\u7684\u7279\u6027\u548c\u4f7f\u7528\u65b9\u5f0f\uff0c\u5c07\u6709\u52a9\u65bc\u5728\u958b\u767c\u904e\u7a0b\u4e2d\u66f4\u597d\u5730\u7ba1\u7406\u8cc7\u6e90\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u7684\u5206\u985e\u53ca\u4f7f\u7528\u65b9\u5f0f\uff0c\u4e86\u89e3\u4e0d\u540c\u985e\u578b\u7684\u9396\u5982\u4f55\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-129329","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129329","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=129329"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129329\/revisions"}],"predecessor-version":[{"id":129330,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129329\/revisions\/129330"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}