{"id":126423,"date":"2024-10-26T04:36:22","date_gmt":"2024-10-25T20:36:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/126423\/"},"modified":"2024-10-26T04:36:23","modified_gmt":"2024-10-25T20:36:23","slug":"redis-%e5%91%bd%e4%bb%a4-ttl-%e5%80%bc%e5%ad%98%e5%84%b2%e6%99%82%e9%96%93%e6%9c%80%e5%a4%a7%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/126423\/","title":{"rendered":"Redis \u547d\u4ee4 TTL \u503c\u5b58\u5132\u6642\u9593\u6700\u5927\u5316"},"content":{"rendered":"<h1 id=\"redis-%e5%91%bd%e4%bb%a4-ttl-%e5%80%bc%e5%ad%98%e5%84%b2%e6%99%82%e9%96%93%e6%9c%80%e5%a4%a7%e5%8c%96-kaZyyrHhxU\">Redis \u547d\u4ee4 TTL \u503c\u5b58\u5132\u6642\u9593\u6700\u5927\u5316<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u5176\u63d0\u4f9b\u7684 TTL\uff08Time To Live\uff09\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5f9e\u800c\u6709\u6548\u7ba1\u7406\u5167\u5b58\u548c\u6578\u64da\u7684\u751f\u547d\u5468\u671f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u6700\u5927\u5316 Redis \u4e2d TTL \u503c\u7684\u5b58\u5132\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-ttl%ef%bc%9f-kaZyyrHhxU\">\u4ec0\u9ebc\u662f TTL\uff1f<\/h2>\n<p>TTL \u662f Redis \u4e2d\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u6307\u7684\u662f\u9375\u7684\u5b58\u6d3b\u6642\u9593\u3002\u7576\u8a2d\u7f6e\u4e86 TTL \u7684\u9375\u5728\u6307\u5b9a\u6642\u9593\u5167\u672a\u88ab\u8a2a\u554f\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\u5c24\u70ba\u91cd\u8981\uff0c\u4f8b\u5982\u7de9\u5b58\u7cfb\u7d71\u548c\u6703\u8a71\u7ba1\u7406\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae-ttl-kaZyyrHhxU\">\u5982\u4f55\u8a2d\u7f6e TTL<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684 TTL\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u7528\u6cd5\uff1a<\/p>\n<pre><code>EXPIRE key seconds<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375 <code>session:123<\/code> \u7684 TTL \u8a2d\u7f6e\u70ba 300 \u79d2\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 300<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e5%a4%a7%e5%8c%96-ttl-%e5%80%bc%e7%9a%84%e5%ad%98%e5%84%b2%e6%99%82%e9%96%93-kaZyyrHhxU\">\u6700\u5927\u5316 TTL \u503c\u7684\u5b58\u5132\u6642\u9593<\/h2>\n<p>\u8981\u6700\u5927\u5316 Redis \u4e2d TTL \u503c\u7684\u5b58\u5132\u6642\u9593\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e5%90%88%e7%90%86%e8%a8%ad%e7%bd%ae-ttl-%e6%99%82%e9%96%93-kaZyyrHhxU\">1. \u5408\u7406\u8a2d\u7f6e TTL \u6642\u9593<\/h3>\n<p>\u6839\u64da\u5be6\u969b\u9700\u6c42\u5408\u7406\u8a2d\u7f6e TTL \u6642\u9593\u662f\u95dc\u9375\u3002\u904e\u77ed\u7684 TTL \u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u904e\u65e9\u904e\u671f\uff0c\u800c\u904e\u9577\u7684 TTL \u5247\u53ef\u80fd\u5c0e\u81f4\u5167\u5b58\u6d6a\u8cbb\u3002\u6839\u64da\u6578\u64da\u7684\u4f7f\u7528\u983b\u7387\u548c\u91cd\u8981\u6027\uff0c\u9078\u64c7\u5408\u9069\u7684 TTL \u6642\u9593\u3002<\/p>\n<h3>2. \u4f7f\u7528 <code>SETEX<\/code> \u547d\u4ee4<\/h3>\n<p>\u4f7f\u7528 <code>SETEX<\/code> \u547d\u4ee4\u53ef\u4ee5\u5728\u8a2d\u7f6e\u9375\u7684\u540c\u6642\u6307\u5b9a TTL\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u8a2d\u7f6e\u5f8c\u518d\u55ae\u7368\u8abf\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>SETEX key seconds value<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>SETEX session:123 300 \"user_data\"<\/code><\/pre>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%aa%a2%e6%9f%a5%e5%92%8c%e6%9b%b4%e6%96%b0-ttl-kaZyyrHhxU\">3. \u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0 TTL<\/h3>\n<p>\u5c0d\u65bc\u67d0\u4e9b\u9700\u8981\u9577\u671f\u5b58\u5132\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u5b9a\u671f\u6aa2\u67e5\u4e26\u66f4\u65b0\u5176 TTL\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5b9a\u6642\u4efb\u52d9\u4f86\u5be6\u73fe\uff0c\u78ba\u4fdd\u91cd\u8981\u6578\u64da\u4e0d\u6703\u56e0\u70ba\u904e\u671f\u800c\u4e1f\u5931\u3002<\/p>\n<h3>4. \u4f7f\u7528 <code>PERSIST<\/code> \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u9700\u8981\u53d6\u6d88\u67d0\u500b\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>PERSIST<\/code> \u547d\u4ee4\u3002\u9019\u6a23\u53ef\u4ee5\u5c07\u9375\u7684 TTL \u8a2d\u7f6e\u70ba\u7121\u9650\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u81ea\u52d5\u904e\u671f\uff1a<\/p>\n<pre><code>PERSIST key<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>PERSIST session:123<\/code><\/pre>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%84%aa%e5%8c%96-kaZyyrHhxU\">\u76e3\u63a7\u548c\u512a\u5316<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fdd TTL \u7684\u6709\u6548\u6027\uff0c\u5efa\u8b70\u4f7f\u7528 Redis \u7684\u76e3\u63a7\u5de5\u5177\u4f86\u8ddf\u8e64\u9375\u7684\u4f7f\u7528\u60c5\u6cc1\u548c\u904e\u671f\u60c5\u6cc1\u3002\u901a\u904e\u5206\u6790\u6578\u64da\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u512a\u5316 TTL \u7684\u8a2d\u7f6e\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-kaZyyrHhxU\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u5408\u7406\u8a2d\u7f6e\u548c\u7ba1\u7406 TTL \u503c\u5c0d\u65bc\u6578\u64da\u7684\u6709\u6548\u5b58\u5132\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4e0a\u8ff0\u7b56\u7565\uff0c\u53ef\u4ee5\u6700\u5927\u5316 TTL \u503c\u7684\u5b58\u5132\u6642\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\uff0cRedis \u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\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>\u4e86\u89e3\u5982\u4f55\u6700\u5927\u5316 Redis \u547d\u4ee4\u7684 TTL \u503c\u5b58\u5132\u6642\u9593\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u5ef6\u9577\u6578\u64da\u6709\u6548\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-126423","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126423","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=126423"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126423\/revisions"}],"predecessor-version":[{"id":126424,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126423\/revisions\/126424"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=126423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=126423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=126423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}