{"id":98556,"date":"2024-10-21T03:36:17","date_gmt":"2024-10-20T19:36:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98556\/"},"modified":"2024-10-21T03:36:18","modified_gmt":"2024-10-20T19:36:18","slug":"redis-%e7%9a%84-ttl-%e5%91%bd%e4%bb%a4%e6%9c%89%e6%95%88%e6%9c%9f%e7%ae%a1%e7%90%86%e5%8a%a9%e5%8a%9b%e9%ab%98%e6%95%88%e6%95%b8%e6%93%9a%e5%bf%ab%e5%8f%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98556\/","title":{"rendered":"Redis \u7684 TTL \u547d\u4ee4\u6709\u6548\u671f\u7ba1\u7406\u52a9\u529b\u9ad8\u6548\u6578\u64da\u5feb\u53d6"},"content":{"rendered":"<h1 id=\"redis-%e7%9a%84-ttl-%e5%91%bd%e4%bb%a4%e6%9c%89%e6%95%88%e6%9c%9f%e7%ae%a1%e7%90%86%e5%8a%a9%e5%8a%9b%e9%ab%98%e6%95%88%e6%95%b8%e6%93%9a%e5%bf%ab%e5%8f%96-qlPBDiLZcx\">Redis \u7684 TTL \u547d\u4ee4\u6709\u6548\u671f\u7ba1\u7406\u52a9\u529b\u9ad8\u6548\u6578\u64da\u5feb\u53d6<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u652f\u6301\u6578\u64da\u5feb\u53d6\uff0c\u5176\u4e2d TTL\uff08Time To Live\uff09\u547d\u4ee4\u662f\u5176\u91cd\u8981\u7684\u7d44\u6210\u90e8\u5206\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u7684 TTL \u547d\u4ee4\u53ca\u5176\u5728\u6578\u64da\u5feb\u53d6\u4e2d\u7684\u61c9\u7528\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u7684\u6709\u6548\u671f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-ttl-%e5%91%bd%e4%bb%a4%ef%bc%9f-qlPBDiLZcx\">\u4ec0\u9ebc\u662f TTL \u547d\u4ee4\uff1f<\/h2>\n<p>TTL \u547d\u4ee4\u7528\u65bc\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\uff0c\u9019\u610f\u5473\u8457\u4e00\u65e6\u8a2d\u7f6e\u4e86 TTL\uff0c\u8a72\u9375\u5728\u6307\u5b9a\u7684\u6642\u9593\u5f8c\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u6216\u904e\u671f\u7684\u6578\u64da\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u5e6b\u52a9\u91cb\u653e\u5167\u5b58\u4e26\u4fdd\u6301\u6578\u64da\u7684\u6700\u65b0\u6027\u3002<\/p>\n<h3 id=\"ttl-%e5%91%bd%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-qlPBDiLZcx\">TTL \u547d\u4ee4\u7684\u57fa\u672c\u7528\u6cd5<\/h3>\n<p>\u5728 Redis \u4e2d\uff0c\u4f7f\u7528 TTL \u547d\u4ee4\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>TTL key<\/code><\/pre>\n<p>\u9019\u88e1\u7684 <code>key<\/code> \u662f\u4f60\u60f3\u8981\u67e5\u8a62\u7684\u9375\u3002\u8fd4\u56de\u503c\u662f\u8a72\u9375\u7684\u5269\u9918\u6709\u6548\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de -2\uff1b\u5982\u679c\u9375\u5b58\u5728\u4f46\u6c92\u6709\u8a2d\u7f6e\u6709\u6548\u671f\uff0c\u5247\u8fd4\u56de -1\u3002<\/p>\n<h3 id=\"%e8%a8%ad%e7%bd%ae%e6%9c%89%e6%95%88%e6%9c%9f%e7%9a%84%e5%91%bd%e4%bb%a4-qlPBDiLZcx\">\u8a2d\u7f6e\u6709\u6548\u671f\u7684\u547d\u4ee4<\/h3>\n<p>\u9664\u4e86\u67e5\u8a62 TTL\uff0cRedis \u9084\u63d0\u4f9b\u4e86\u8a2d\u7f6e\u6709\u6548\u671f\u7684\u547d\u4ee4\uff0c\u4e3b\u8981\u6709\u5169\u500b\uff1a<\/p>\n<ul>\n<li><code>EXPIRE key seconds<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\u70ba\u6307\u5b9a\u7684\u79d2\u6578\u3002<\/li>\n<li><code>PEXPIRE key milliseconds<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\u70ba\u6307\u5b9a\u7684\u6beb\u79d2\u6578\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375 <code>session:123<\/code> \u7684\u6709\u6548\u671f\u8a2d\u7f6e\u70ba 60 \u79d2\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 60<\/code><\/pre>\n<h2 id=\"ttl-%e5%9c%a8%e6%95%b8%e6%93%9a%e5%bf%ab%e5%8f%96%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-qlPBDiLZcx\">TTL \u5728\u6578\u64da\u5feb\u53d6\u4e2d\u7684\u61c9\u7528<\/h2>\n<p>\u5728\u6578\u64da\u5feb\u53d6\u7684\u5834\u666f\u4e2d\uff0cTTL \u547d\u4ee4\u7684\u61c9\u7528\u975e\u5e38\u5ee3\u6cdb\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u61c9\u7528\u6848\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%94%a8%e6%88%b6%e6%9c%83%e8%a9%b1%e7%ae%a1%e7%90%86-qlPBDiLZcx\">1. \u7528\u6236\u6703\u8a71\u7ba1\u7406<\/h3>\n<p>\u5728 Web \u61c9\u7528\u4e2d\uff0c\u4f7f\u7528\u8005\u7684\u6703\u8a71\u4fe1\u606f\u901a\u5e38\u9700\u8981\u5728\u4e00\u5b9a\u6642\u9593\u5167\u4fdd\u6301\u6709\u6548\u3002\u901a\u904e\u8a2d\u7f6e\u6703\u8a71\u9375\u7684 TTL\uff0c\u53ef\u4ee5\u81ea\u52d5\u6e05\u9664\u904e\u671f\u7684\u6703\u8a71\uff0c\u5f9e\u800c\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\u3002<\/p>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e6%9b%b4%e6%96%b0-qlPBDiLZcx\">2. \u6578\u64da\u66f4\u65b0<\/h3>\n<p>\u5c0d\u65bc\u67d0\u4e9b\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u7684\u6578\u64da\uff0c\u4f8b\u5982\u5546\u54c1\u5eab\u5b58\u6216\u50f9\u683c\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528 TTL \u4f86\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u904e\u671f\u592a\u4e45\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u7528\u6236\u7372\u53d6\u5230\u904e\u6642\u7684\u4fe1\u606f\u3002<\/p>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e6%8e%a7%e5%88%b6-qlPBDiLZcx\">3. \u9650\u6d41\u63a7\u5236<\/h3>\n<p>\u5728 API \u9650\u6d41\u7684\u5834\u666f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 TTL \u4f86\u9650\u5236\u7528\u6236\u5728\u4e00\u5b9a\u6642\u9593\u5167\u7684\u8acb\u6c42\u6b21\u6578\u3002\u6bcf\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u53ef\u4ee5\u5728 Redis \u4e2d\u8a2d\u7f6e\u4e00\u500b\u9375\uff0c\u4e26\u8a2d\u7f6e\u5176 TTL\uff0c\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u63a7\u5236\u8acb\u6c42\u983b\u7387\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-qlPBDiLZcx\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136 TTL \u547d\u4ee4\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u8a2d\u7f6e\u904e\u77ed\u7684 TTL \u53ef\u80fd\u6703\u5c0e\u81f4\u983b\u7e41\u7684\u6578\u64da\u91cd\u5efa\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u5ef6\u9577\u67d0\u500b\u9375\u7684\u6709\u6548\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u91cd\u65b0\u8a2d\u7f6e\u3002<\/li>\n<li>\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\uff0c\u9700\u8003\u616e\u5230 TTL \u7684\u4e00\u81f4\u6027\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qlPBDiLZcx\">\u7e3d\u7d50<\/h2>\n<p>Redis \u7684 TTL \u547d\u4ee4\u70ba\u6578\u64da\u5feb\u53d6\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6709\u6548\u671f\u7ba1\u7406\u65b9\u6848\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u5167\u5b58\u548c\u6578\u64da\u7684\u66f4\u65b0\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e TTL\uff0c\u53ef\u4ee5\u63d0\u5347\u61c9\u7528\u6027\u80fd\uff0c\u6e1b\u5c11\u8cc7\u6e90\u6d6a\u8cbb\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5feb\u53d6\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u9032\u4e00\u6b65\u589e\u5f37\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\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>Redis \u7684 TTL \u547d\u4ee4\u6709\u6548\u671f\u7ba1\u7406\uff0c\u63d0\u5347\u6578\u64da\u5feb\u53d6\u6548\u7387\uff0c\u78ba\u4fdd\u8cc7\u6e90\u6700\u4f73\u5229\u7528\uff0c\u5be6\u73fe\u5feb\u901f\u97ff\u61c9\u8207\u9ad8\u6027\u80fd\u61c9\u7528\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-98556","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98556","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=98556"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98556\/revisions"}],"predecessor-version":[{"id":98557,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98556\/revisions\/98557"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}