{"id":195133,"date":"2024-11-13T12:29:21","date_gmt":"2024-11-13T04:29:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195133\/"},"modified":"2024-11-13T12:29:22","modified_gmt":"2024-11-13T04:29:22","slug":"%e5%84%aa%e5%8c%96redis%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%ef%bc%8c%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd%ef%bc%88redis%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%e8%a8%ad%e7%bd%ae%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195133\/","title":{"rendered":"\u512a\u5316Redis\u9396\u7b49\u5f85\u6642\u9593\uff0c\u63d0\u5347\u6027\u80fd\uff08redis\u9396\u7b49\u5f85\u6642\u9593\u8a2d\u7f6e\uff09"},"content":{"rendered":"<h1 id=\"%e5%84%aa%e5%8c%96redis%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%ef%bc%8c%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd%ef%bc%88redis%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%e8%a8%ad%e7%bd%ae%ef%bc%89-wwvxNNsWzn\">\u512a\u5316Redis\u9396\u7b49\u5f85\u6642\u9593\uff0c\u63d0\u5347\u6027\u80fd\uff08redis\u9396\u7b49\u5f85\u6642\u9593\u8a2d\u7f6e\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u7136\u800c\uff0c\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u9396\u7684\u4f7f\u7528\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u5316Redis\u7684\u9396\u7b49\u5f85\u6642\u9593\uff0c\u4ee5\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-wwvxNNsWzn\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u9396\u901a\u5e38\u662f\u901a\u904e\u8a2d\u7f6e\u9375\u4f86\u5be6\u73fe\u7684\u3002\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u9700\u8981\u8a2a\u554f\u67d0\u500b\u8cc7\u6e90\u6642\uff0c\u5b83\u6703\u9996\u5148\u6aa2\u67e5\u8a72\u8cc7\u6e90\u7684\u9396\u662f\u5426\u88ab\u4f54\u7528\u3002\u5982\u679c\u9396\u672a\u88ab\u4f54\u7528\uff0c\u5ba2\u6236\u7aef\u5c07\u8a2d\u7f6e\u9396\u4e26\u9032\u884c\u64cd\u4f5c\uff1b\u5982\u679c\u9396\u5df2\u88ab\u4f54\u7528\uff0c\u5ba2\u6236\u7aef\u5247\u9700\u8981\u7b49\u5f85\u6216\u91cd\u8a66\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%e7%9a%84%e5%bd%b1%e9%9f%bf%e5%9b%a0%e7%b4%a0-wwvxNNsWzn\">\u9396\u7b49\u5f85\u6642\u9593\u7684\u5f71\u97ff\u56e0\u7d20<\/h2>\n<p>\u9396\u7b49\u5f85\u6642\u9593\u7684\u9577\u77ed\u76f4\u63a5\u5f71\u97ff\u5230\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u5f71\u97ff\u9396\u7b49\u5f85\u6642\u9593\u7684\u4e3b\u8981\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7684\u7c92\u5ea6\uff1a<\/strong>\u9396\u7684\u7c92\u5ea6\u8d8a\u5c0f\uff0c\u7af6\u722d\u7684\u53ef\u80fd\u6027\u8d8a\u4f4e\uff0c\u7b49\u5f85\u6642\u9593\u4e5f\u6703\u76f8\u61c9\u6e1b\u5c11\u3002<\/li>\n<li><strong>\u9396\u7684\u6301\u6709\u6642\u9593\uff1a<\/strong>\u5982\u679c\u9396\u88ab\u6301\u6709\u7684\u6642\u9593\u904e\u9577\uff0c\u5176\u4ed6\u8acb\u6c42\u5c07\u4e0d\u5f97\u4e0d\u7b49\u5f85\uff0c\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u5ba2\u6236\u7aef\u7684\u91cd\u8a66\u7b56\u7565\uff1a<\/strong>\u4e0d\u5408\u7406\u7684\u91cd\u8a66\u7b56\u7565\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\uff0c\u589e\u52a0\u9396\u7684\u7af6\u722d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%84%aa%e5%8c%96%e9%8e%96%e7%ad%89%e5%be%85%e6%99%82%e9%96%93%e7%9a%84%e7%ad%96%e7%95%a5-wwvxNNsWzn\">\u512a\u5316\u9396\u7b49\u5f85\u6642\u9593\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%90%88%e7%90%86%e7%9a%84%e9%8e%96%e7%b2%92%e5%ba%a6-wwvxNNsWzn\">1. \u4f7f\u7528\u5408\u7406\u7684\u9396\u7c92\u5ea6<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9396\u7c92\u5ea6\u662f\u512a\u5316\u9396\u7b49\u5f85\u6642\u9593\u7684\u7b2c\u4e00\u6b65\u3002\u904e\u65bc\u7c97\u7c92\u5ea6\u7684\u9396\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\uff0c\u800c\u904e\u65bc\u7d30\u7c92\u5ea6\u7684\u9396\u5247\u53ef\u80fd\u589e\u52a0\u7ba1\u7406\u7684\u8907\u96dc\u6027\u3002\u901a\u5e38\uff0c\u61c9\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u4f86\u9078\u64c7\u9396\u7684\u7c92\u5ea6\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-wwvxNNsWzn\">2. \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u70ba\u9396\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u6301\u6709\u9396\u7684\u5ba2\u6236\u7aef\u5d29\u6f70\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u4e5f\u80fd\u5728\u9396\u904e\u671f\u5f8c\u91cd\u65b0\u7372\u53d6\u9396\u3002\u4ee5\u4e0b\u662f\u8a2d\u7f6e\u9396\u904e\u671f\u6642\u9593\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET lock_key \"lock_value\" NX PX 30000<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u572830\u79d2\u5f8c\u81ea\u52d5\u91cb\u653e\u9396\uff0c\u5f9e\u800c\u6e1b\u5c11\u9396\u7b49\u5f85\u6642\u9593\u3002<\/p>\n<h3 id=\"3-%e5%af%a6%e6%96%bd%e9%87%8d%e8%a9%a6%e7%ad%96%e7%95%a5-wwvxNNsWzn\">3. \u5be6\u65bd\u91cd\u8a66\u7b56\u7565<\/h3>\n<p>\u5728\u5ba2\u6236\u7aef\u7372\u53d6\u9396\u5931\u6557\u6642\uff0c\u61c9\u8a72\u5be6\u65bd\u5408\u7406\u7684\u91cd\u8a66\u7b56\u7565\u3002\u53ef\u4ee5\u4f7f\u7528\u6307\u6578\u9000\u907f\u7b97\u6cd5\u4f86\u6e1b\u5c11\u91cd\u8a66\u7684\u983b\u7387\uff0c\u5f9e\u800c\u964d\u4f4e\u9396\u7684\u7af6\u722d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>while (true) {\n    if (acquireLock()) {\n        break;\n    }\n    sleep(randomBackoffTime());\n}<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8redisson%e7%ad%89%e9%ab%98%e7%b4%9a%e9%8e%96%e5%af%a6%e7%8f%be-wwvxNNsWzn\">4. \u4f7f\u7528Redisson\u7b49\u9ad8\u7d1a\u9396\u5be6\u73fe<\/h3>\n<p>Redisson\u662f\u4e00\u500b\u57fa\u65bcRedis\u7684Java\u5ba2\u6236\u7aef\uff0c\u63d0\u4f9b\u4e86\u9ad8\u7d1a\u9396\u7684\u5be6\u73fe\u3002\u4f7f\u7528Redisson\u53ef\u4ee5\u7c21\u5316\u9396\u7684\u7ba1\u7406\uff0c\u4e26\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Redisson\u7372\u53d6\u9396\u7684\u793a\u4f8b\uff1a<\/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}<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-wwvxNNsWzn\">\u7d50\u8ad6<\/h2>\n<p>\u512a\u5316Redis\u7684\u9396\u7b49\u5f85\u6642\u9593\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u9396\u7684\u7c92\u5ea6\u3001\u904e\u671f\u6642\u9593\u3001\u91cd\u8a66\u7b56\u7565\u4ee5\u53ca\u4f7f\u7528\u9ad8\u7d1a\u9396\u5be6\u73fe\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u9396\u7684\u7af6\u722d\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9019\u4e9b\u7b56\u7565\u5c07\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u512a\u5316Redis\u9396\u7b49\u5f85\u6642\u9593\uff0c\u63d0\u5347\u6027\u80fd\uff0c\u63a2\u7d22\u6709\u6548\u7684\u9396\u7b49\u5f85\u6642\u9593\u8a2d\u7f6e\u7b56\u7565\uff0c\u78ba\u4fdd\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\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-195133","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195133","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=195133"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195133\/revisions"}],"predecessor-version":[{"id":195134,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195133\/revisions\/195134"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}