{"id":163489,"date":"2024-11-04T23:56:27","date_gmt":"2024-11-04T15:56:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163489\/"},"modified":"2024-11-04T23:56:28","modified_gmt":"2024-11-04T15:56:28","slug":"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e5%95%8f%e9%a1%8c%ef%bc%88redis%e7%b7%a9%e5%ad%98%e5%87%ba%e7%8f%be%e9%9b%aa%e5%b4%a9%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163489\/","title":{"rendered":"\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u554f\u984c\uff08redis\u7de9\u5b58\u51fa\u73fe\u96ea\u5d29\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e5%95%8f%e9%a1%8c%ef%bc%88redis%e7%b7%a9%e5%ad%98%e5%87%ba%e7%8f%be%e9%9b%aa%e5%b4%a9%ef%bc%89-kKJqkuZBMT\">\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u554f\u984c\uff08redis\u7de9\u5b58\u51fa\u73fe\u96ea\u5d29\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002\u7136\u800c\uff0c\u96a8\u8457\u4f7f\u7528\u91cf\u7684\u589e\u52a0\uff0cRedis\u7de9\u5b58\u96ea\u5d29\u554f\u984c\u9010\u6f38\u6210\u70ba\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u4e00\u500b\u6311\u6230\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7de9\u5b58\u96ea\u5d29\u7684\u6210\u56e0\u3001\u5f71\u97ff\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%9f-kKJqkuZBMT\">\u4ec0\u9ebc\u662fRedis\u7de9\u5b58\u96ea\u5d29\uff1f<\/h2>\n<p>Redis\u7de9\u5b58\u96ea\u5d29\u662f\u6307\u5728\u7279\u5b9a\u6642\u9593\u5167\uff0c\u5927\u91cf\u7684\u7de9\u5b58\u6578\u64da\u540c\u6642\u904e\u671f\uff0c\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u5f9e\u800c\u9020\u6210\u6578\u64da\u5eab\u7684\u77ac\u6642\u8ca0\u8f09\u6fc0\u589e\uff0c\u6700\u7d42\u53ef\u80fd\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u7279\u5225\u662f\u5728\u6d41\u91cf\u9ad8\u5cf0\u671f\u3002<\/p>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e6%88%90%e5%9b%a0-kKJqkuZBMT\">\u7de9\u5b58\u96ea\u5d29\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u7de9\u5b58\u904e\u671f\u6642\u9593\u4e00\u81f4\uff1a<\/strong>\u5982\u679c\u591a\u500b\u7de9\u5b58\u6578\u64da\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u76f8\u540c\uff0c\u7576\u9019\u4e9b\u6578\u64da\u540c\u6642\u904e\u671f\u6642\uff0c\u5c07\u6703\u5f15\u767c\u96ea\u5d29\u3002<\/li>\n<li><strong>\u9ad8\u4e26\u767c\u8acb\u6c42\uff1a<\/strong>\u5728\u6d41\u91cf\u9ad8\u5cf0\u671f\uff0c\u8acb\u6c42\u91cf\u6fc0\u589e\uff0c\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u540c\u6642\u5230\u9054\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u6545\u969c\uff1a<\/strong>\u5982\u679cRedis\u670d\u52d9\u5668\u51fa\u73fe\u6545\u969c\uff0c\u6240\u6709\u8acb\u6c42\u5c07\u76f4\u63a5\u6253\u5230\u6578\u64da\u5eab\uff0c\u589e\u52a0\u4e86\u8ca0\u8f09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e5%bd%b1%e9%9f%bf-kKJqkuZBMT\">\u7de9\u5b58\u96ea\u5d29\u7684\u5f71\u97ff<\/h2>\n<p>\u7576Redis\u7de9\u5b58\u96ea\u5d29\u767c\u751f\u6642\uff0c\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8ca0\u8f09\u6703\u6025\u5287\u4e0a\u5347\uff0c\u53ef\u80fd\u5c0e\u81f4\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u5eab\u97ff\u61c9\u6642\u9593\u5ef6\u9072\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<li>\u6578\u64da\u5eab\u53ef\u80fd\u56e0\u70ba\u904e\u8f09\u800c\u5d29\u6f70\uff0c\u5c0e\u81f4\u670d\u52d9\u4e0d\u53ef\u7528\u3002<\/li>\n<li>\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u4e0b\u964d\uff0c\u5f71\u97ff\u696d\u52d9\u904b\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e6%96%b9%e6%a1%88-kKJqkuZBMT\">\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u7684\u65b9\u6848<\/h2>\n<h3 id=\"1-%e9%9a%a8%e6%a9%9f%e5%8c%96%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-kKJqkuZBMT\">1. \u96a8\u6a5f\u5316\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u591a\u500b\u7de9\u5b58\u540c\u6642\u904e\u671f\uff0c\u53ef\u4ee5\u5728\u8a2d\u7f6e\u7de9\u5b58\u6642\uff0c\u70ba\u6bcf\u500b\u7de9\u5b58\u9805\u76ee\u96a8\u6a5f\u5316\u904e\u671f\u6642\u9593\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u7de9\u5b58\u9805\u76ee\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u57fa\u790e\u904e\u671f\u6642\u9593\uff0c\u7136\u5f8c\u52a0\u4e0a\u4e00\u500b\u96a8\u6a5f\u7684\u6642\u9593\u504f\u79fb\uff1a<\/p>\n<pre><code>int baseExpireTime = 3600; \/\/ \u57fa\u790e\u904e\u671f\u6642\u95931\u5c0f\u6642\nint randomOffset = new Random().nextInt(600); \/\/ \u96a8\u6a5f\u504f\u79fb\u6642\u95930-10\u5206\u9418\nint finalExpireTime = baseExpireTime + randomOffset;\nredis.set(\"key\", \"value\", finalExpireTime);<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e4%ba%92%e6%96%a5%e9%8e%96-kKJqkuZBMT\">2. \u4f7f\u7528\u4e92\u65a5\u9396<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9396\u4f86\u63a7\u5236\u5c0d\u7de9\u5b58\u7684\u8a2a\u554f\u3002\u7576\u4e00\u500b\u8acb\u6c42\u6b63\u5728\u66f4\u65b0\u7de9\u5b58\u6642\uff0c\u5176\u4ed6\u8acb\u6c42\u9700\u8981\u7b49\u5f85\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u540c\u6642\u5927\u91cf\u8acb\u6c42\u6253\u5230\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>String lockKey = \"lock:key\";\nboolean acquired = redis.set(lockKey, \"lock\", \"NX\", \"EX\", 5); \/\/ \u8a2d\u7f6e\u9396\uff0c5\u79d2\u904e\u671f\nif (acquired) {\n    try {\n        \/\/ \u66f4\u65b0\u7de9\u5b58\u908f\u8f2f\n    } finally {\n        redis.del(lockKey); \/\/ \u91cb\u653e\u9396\n    }\n}<\/code><\/pre>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e7%ad%96%e7%95%a5-kKJqkuZBMT\">3. \u9650\u6d41\u7b56\u7565<\/h3>\n<p>\u5be6\u65bd\u9650\u6d41\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u63a7\u5236\u8acb\u6c42\u7684\u6578\u91cf\uff0c\u907f\u514d\u5728\u9ad8\u5cf0\u671f\u5c0d\u6578\u64da\u5eab\u9020\u6210\u904e\u5927\u58d3\u529b\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee4\u724c\u6876\u6216\u6f0f\u6876\u7b97\u6cd5\u4f86\u5be6\u73fe\u9650\u6d41\u3002<\/p>\n<h3 id=\"4-%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6-kKJqkuZBMT\">4. \u7194\u65b7\u6a5f\u5236<\/h3>\n<p>\u7576\u6aa2\u6e2c\u5230\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u97ff\u61c9\u6642\u9593\u904e\u9577\u6216\u932f\u8aa4\u7387\u904e\u9ad8\u6642\uff0c\u53ef\u4ee5\u555f\u7528\u7194\u65b7\u6a5f\u5236\uff0c\u66ab\u6642\u505c\u6b62\u8acb\u6c42\uff0c\u4e26\u8fd4\u56de\u9810\u8a2d\u7684\u6578\u64da\u6216\u932f\u8aa4\u4fe1\u606f\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u8b77\u7cfb\u7d71\u4e0d\u88ab\u904e\u8f09\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-kKJqkuZBMT\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7de9\u5b58\u96ea\u5d29\u554f\u984c\u662f\u4e00\u500b\u9700\u8981\u91cd\u8996\u7684\u6311\u6230\uff0c\u901a\u904e\u96a8\u6a5f\u5316\u904e\u671f\u6642\u9593\u3001\u4f7f\u7528\u4e92\u65a5\u9396\u3001\u5be6\u65bd\u9650\u6d41\u7b56\u7565\u548c\u7194\u65b7\u6a5f\u5236\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u9019\u4e00\u554f\u984c\u7684\u5f71\u97ff\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\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u554f\u984c\uff0c\u63a2\u8a0e\u6709\u6548\u7b56\u7565\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6027\u80fd\u512a\u5316\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-163489","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163489","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=163489"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163489\/revisions"}],"predecessor-version":[{"id":163490,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163489\/revisions\/163490"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}