{"id":127975,"date":"2024-10-26T10:43:48","date_gmt":"2024-10-26T02:43:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/127975\/"},"modified":"2024-10-26T10:43:49","modified_gmt":"2024-10-26T02:43:49","slug":"redis-%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e6%9c%89%e6%95%88%e7%9a%84-key-%e9%99%90%e6%9c%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/127975\/","title":{"rendered":"Redis \u5982\u4f55\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f"},"content":{"rendered":"<h1 id=\"redis-%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e6%9c%89%e6%95%88%e7%9a%84-key-%e9%99%90%e6%9c%9f-KKQfYHmNss\">Redis \u5982\u4f55\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5f0f\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u7684\u4f7f\u7528\u8d8a\u4f86\u8d8a\u666e\u904d\uff0c\u800c Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u5feb\u53d6\u529f\u80fd\u3002\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u7ba1\u7406\u8a18\u61b6\u9ad4\u4f7f\u7528\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6642\u6548\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-key-%e9%99%90%e6%9c%9f%ef%bc%9f-KKQfYHmNss\">\u4ec0\u9ebc\u662f Key \u9650\u671f\uff1f<\/h2>\n<p>Key \u9650\u671f\u662f\u6307\u5728 Redis \u4e2d\u70ba\u7279\u5b9a\u9375\u8a2d\u7f6e\u7684\u751f\u5b58\u6642\u9593\uff08TTL, Time To Live\uff09\u3002\u7576\u4e00\u500b\u9375\u7684 TTL \u5230\u671f\u5f8c\uff0c\u8a72\u9375\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u6216\u904e\u671f\u7684\u6578\u64da\u7279\u5225\u6709\u7528\uff0c\u4f8b\u5982\u7528\u6236\u6703\u8a71\u3001\u5feb\u53d6\u6578\u64da\u7b49\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae-key-%e9%99%90%e6%9c%9f-KKQfYHmNss\">\u5982\u4f55\u8a2d\u7f6e Key \u9650\u671f<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u9650\u671f\uff1a<\/p>\n<ul>\n<li><code>EXPIRE key seconds<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u751f\u5b58\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002<\/li>\n<li><code>PEXPIRE key milliseconds<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u751f\u5b58\u6642\u9593\uff08\u4ee5\u6beb\u79d2\u70ba\u55ae\u4f4d\uff09\u3002<\/li>\n<li><code>SET key value EX seconds<\/code>\uff1a\u5728\u8a2d\u7f6e\u9375\u503c\u7684\u540c\u6642\uff0c\u8a2d\u7f6e\u751f\u5b58\u6642\u9593\u3002<\/li>\n<li><code>SET key value PX milliseconds<\/code>\uff1a\u5728\u8a2d\u7f6e\u9375\u503c\u7684\u540c\u6642\uff0c\u8a2d\u7f6e\u751f\u5b58\u6642\u9593\uff08\u4ee5\u6beb\u79d2\u70ba\u55ae\u4f4d\uff09\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-KKQfYHmNss\">\u7bc4\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 Redis \u547d\u4ee4\u8a2d\u7f6e Key \u9650\u671f\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SET session:12345 \"user_data\" EX 300\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u9375 <code>session:12345<\/code> \u7684\u503c\u8a2d\u7f6e\u70ba <code>\"user_data\"<\/code>\uff0c\u4e26\u5c07\u5176\u751f\u5b58\u6642\u9593\u8a2d\u7f6e\u70ba 300 \u79d2\u3002<\/p>\n<pre><code>EXPIRE session:12345 600\n<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u5df2\u5b58\u5728\u7684\u9375 <code>session:12345<\/code> \u7684\u751f\u5b58\u6642\u9593\u66f4\u65b0\u70ba 600 \u79d2\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5-key-%e9%99%90%e6%9c%9f-KKQfYHmNss\">\u6aa2\u67e5 Key \u9650\u671f<\/h2>\n<p>\u53ef\u4ee5\u4f7f\u7528 <code>TTL<\/code> \u547d\u4ee4\u4f86\u6aa2\u67e5\u67d0\u500b\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff1a<\/p>\n<pre><code>TTL session:12345\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u9375 <code>session:12345<\/code> \u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de <code>-2<\/code>\uff1b\u5982\u679c\u9375\u5b58\u5728\u4f46\u6c92\u6709\u8a2d\u7f6e\u9650\u671f\uff0c\u5247\u8fd4\u56de <code>-1<\/code>\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-KKQfYHmNss\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u5408\u7406\u8a2d\u7f6e\u9650\u671f\uff1a<\/strong>\u6839\u64da\u6578\u64da\u7684\u4f7f\u7528\u983b\u7387\u548c\u91cd\u8981\u6027\u5408\u7406\u8a2d\u7f6e\u9650\u671f\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u76e3\u63a7\u9375\u7684\u4f7f\u7528\u60c5\u6cc1\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u9375\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u9650\u671f\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6301\u4e45\u5316\uff1a<\/strong>\u5c0d\u65bc\u91cd\u8981\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 Redis \u7684\u6301\u4e45\u5316\u529f\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u56e0\u70ba\u904e\u671f\u800c\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-KKQfYHmNss\">\u7d50\u8ad6<\/h2>\n<p>\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f\u662f Redis \u4f7f\u7528\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u65b9\u9762\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u7684\u751f\u547d\u9031\u671f\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u7f6e\u548c\u76e3\u63a7\uff0c\u53ef\u4ee5\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u548c\u6578\u64da\u7684\u6642\u6548\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\u5c07\u662f\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u95dc\u9375\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u8a2d\u7f6e\u6709\u6548\u7684 Key \u9650\u671f\uff0c\u78ba\u4fdd\u6578\u64da\u7ba1\u7406\u9ad8\u6548\u4e14\u81ea\u52d5\u904e\u671f\uff0c\u63d0\u5347\u6027\u80fd\u8207\u8cc7\u6e90\u5229\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-127975","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127975","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=127975"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127975\/revisions"}],"predecessor-version":[{"id":127976,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127975\/revisions\/127976"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=127975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=127975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=127975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}