{"id":97252,"date":"2024-10-20T16:16:17","date_gmt":"2024-10-20T08:16:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97252\/"},"modified":"2024-10-20T16:16:18","modified_gmt":"2024-10-20T08:16:18","slug":"redis-ttl%e8%a7%a3%e9%8e%96%e6%9b%b4%e5%a4%9a%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86%e5%8f%af%e8%83%bd%ef%bc%88redis%e7%94%a8%e8%99%95-ttl%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97252\/","title":{"rendered":"Redis TTL\u89e3\u9396\u66f4\u591a\u6578\u64da\u8655\u7406\u53ef\u80fd\uff08redis\u7528\u8655 ttl\uff09"},"content":{"rendered":"<h1 id=\"redis-ttl%e8%a7%a3%e9%8e%96%e6%9b%b4%e5%a4%9a%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86%e5%8f%af%e8%83%bd%ef%bc%88redis%e7%94%a8%e8%99%95-ttl%ef%bc%89-AJiQPQYDXZ\">Redis TTL\u89e3\u9396\u66f4\u591a\u6578\u64da\u8655\u7406\u53ef\u80fd\uff08redis\u7528\u8655 ttl\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b58\u5132\u548c\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u5176\u4e2d\uff0cTTL\uff08Time To Live\uff09\u529f\u80fd\u70ba\u6578\u64da\u7684\u7ba1\u7406\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u53ef\u80fd\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684TTL\u529f\u80fd\u53ca\u5176\u5728\u6578\u64da\u8655\u7406\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afttl%ef%bc%9f-AJiQPQYDXZ\">\u4ec0\u9ebc\u662fTTL\uff1f<\/h2>\n<p>TTL\u662f\u201c\u751f\u5b58\u6642\u9593\u201d\u7684\u7e2e\u5beb\uff0c\u6307\u7684\u662f\u4e00\u500b\u9375\u5728Redis\u4e2d\u5b58\u5728\u7684\u6642\u9593\u9650\u5236\u3002\u7576\u8a2d\u7f6e\u4e86TTL\u7684\u9375\u5728\u6307\u5b9a\u7684\u6642\u9593\u5167\u672a\u88ab\u8a2a\u554f\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u4f7f\u5f97Redis\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u5806\u7a4d\u3002<\/p>\n<h2 id=\"ttl%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-AJiQPQYDXZ\">TTL\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6eTTL\uff1a<\/p>\n<pre><code>EXPIRE key seconds<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375\u201csession:123\u201d\u8a2d\u7f6e\u70ba60\u79d2\u5f8c\u904e\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 60<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528<\/p>\n<p>TTL key<\/p>\n<p>\u547d\u4ee4\u4f86\u67e5\u8a62\u67d0\u500b\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff1a<\/p>\n<pre><code>TTL session:123<\/code><\/pre>\n<h2 id=\"ttl%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-AJiQPQYDXZ\">TTL\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>TTL\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u6703\u8a71\u7ba1\u7406\uff1a<\/strong>\u5728Web\u61c9\u7528\u4e2d\uff0c\u4f7f\u7528TTL\u4f86\u7ba1\u7406\u7528\u6236\u6703\u8a71\u662f\u975e\u5e38\u5e38\u898b\u7684\u3002\u901a\u904e\u8a2d\u7f6e\u6703\u8a71\u7684TTL\uff0c\u53ef\u4ee5\u81ea\u52d5\u6e05\u7406\u904e\u671f\u7684\u6703\u8a71\u6578\u64da\uff0c\u5f9e\u800c\u91cb\u653e\u5167\u5b58\u3002<\/li>\n<li><strong>\u7de9\u5b58\u6578\u64da\uff1a<\/strong>\u5728\u7de9\u5b58\u7cfb\u7d71\u4e2d\uff0cTTL\u53ef\u4ee5\u7528\u4f86\u63a7\u5236\u7de9\u5b58\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u7576\u6578\u64da\u4e0d\u518d\u9700\u8981\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u522a\u9664\uff0c\u907f\u514d\u4e86\u904e\u671f\u6578\u64da\u7684\u5e72\u64fe\u3002<\/li>\n<li><strong>\u9650\u6d41\u63a7\u5236\uff1a<\/strong>\u5728API\u9650\u6d41\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528TTL\u4f86\u9650\u5236\u67d0\u500b\u7528\u6236\u5728\u7279\u5b9a\u6642\u9593\u5167\u7684\u8acb\u6c42\u6b21\u6578\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u6feb\u7528\u548c\u653b\u64ca\u3002<\/li>\n<\/ul>\n<h2 id=\"ttl%e7%9a%84%e5%84%aa%e5%8b%a2-AJiQPQYDXZ\">TTL\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528TTL\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u81ea\u52d5\u7ba1\u7406\uff1a<\/strong>TTL\u4f7f\u5f97\u6578\u64da\u7684\u904e\u671f\u7ba1\u7406\u8b8a\u5f97\u81ea\u52d5\u5316\uff0c\u6e1b\u5c11\u4e86\u624b\u52d5\u6e05\u7406\u7684\u5de5\u4f5c\u91cf\u3002<\/li>\n<li><strong>\u5167\u5b58\u512a\u5316\uff1a<\/strong>\u901a\u904e\u81ea\u52d5\u522a\u9664\u904e\u671f\u6578\u64da\uff0cRedis\u80fd\u5920\u66f4\u6709\u6548\u5730\u5229\u7528\u5167\u5b58\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>TTL\u7684\u8a2d\u7f6e\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u8abf\u6574\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u65b9\u6848\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-AJiQPQYDXZ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136TTL\u529f\u80fd\u975e\u5e38\u5f37\u5927\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>TTL\u7684\u8a2d\u7f6e\u9700\u8981\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5408\u7406\u914d\u7f6e\uff0c\u904e\u77ed\u7684TTL\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u983b\u7e41\u904e\u671f\uff0c\u800c\u904e\u9577\u7684TTL\u5247\u53ef\u80fd\u9020\u6210\u5167\u5b58\u6d6a\u8cbb\u3002<\/li>\n<li>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0cTTL\u7684\u8a2d\u7f6e\u548c\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u9032\u884c\u6027\u80fd\u6e2c\u8a66\u3002<\/li>\n<li>\u9700\u8981\u6ce8\u610fTTL\u7684\u7cbe\u5ea6\uff0cRedis\u7684TTL\u662f\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff0c\u5c0d\u65bc\u9700\u8981\u6beb\u79d2\u7d1a\u7cbe\u5ea6\u7684\u61c9\u7528\u53ef\u80fd\u4e0d\u592a\u9069\u7528\u3002<\/li>\n<\/ul>\n<h2 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