{"id":125009,"date":"2024-10-25T19:02:20","date_gmt":"2024-10-25T11:02:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/125009\/"},"modified":"2024-10-25T19:02:21","modified_gmt":"2024-10-25T11:02:21","slug":"redis-%e7%b0%a1%e6%98%93%e6%b8%85%e7%90%86%e5%9b%9e%e6%94%b6%e9%83%a8%e5%88%86-key","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/125009\/","title":{"rendered":"Redis \u7c21\u6613\u6e05\u7406\u56de\u6536\u90e8\u5206 Key"},"content":{"rendered":"<h1 id=\"redis-%e7%b0%a1%e6%98%93%e6%b8%85%e7%90%86%e5%9b%9e%e6%94%b6%e9%83%a8%e5%88%86-key-ytydvoCMDn\">Redis \u7c21\u6613\u6e05\u7406\u56de\u6536\u90e8\u5206 Key<\/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\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis \u4e2d\u7684\u6578\u64da\u91cf\u53ef\u80fd\u6703\u4e0d\u65b7\u589e\u9577\uff0c\u9019\u5c31\u9700\u8981\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684\u9375\uff08Key\uff09\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u7c21\u6613\u6e05\u7406\u56de\u6536\u90e8\u5206 Key\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e7%90%86-redis-%e4%b8%ad%e7%9a%84-key-ytydvoCMDn\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7406 Redis \u4e2d\u7684 Key<\/h2>\n<p>Redis \u7684\u6027\u80fd\u512a\u52e2\u5728\u65bc\u5176\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\u80fd\u529b\uff0c\u4f46\u96a8\u8457\u9375\u7684\u6578\u91cf\u589e\u52a0\uff0c\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u9700\u8981\u6e05\u7406 Redis \u4e2d\u9375\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u4e0d\u518d\u4f7f\u7528\u7684\u9375\u6703\u4f54\u7528\u5167\u5b58\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u904e\u671f\u7684\u9375\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u4f7f\u7528\u904e\u6642\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u7dad\u8b77\u7c21\u4fbf\uff1a<\/strong>\u5b9a\u671f\u6e05\u7406\u53ef\u4ee5\u4f7f\u6578\u64da\u7d50\u69cb\u4fdd\u6301\u7c21\u6f54\uff0c\u4fbf\u65bc\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84-key-%e6%b8%85%e7%90%86%e6%96%b9%e6%b3%95-ytydvoCMDn\">Redis \u4e2d\u7684 Key \u6e05\u7406\u65b9\u6cd5<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u9375\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-expire-%e5%91%bd%e4%bb%a4-ytydvoCMDn\">1. \u4f7f\u7528 EXPIRE \u547d\u4ee4<\/h3>\n<p>EXPIRE \u547d\u4ee4\u53ef\u4ee5\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u7576\u6642\u9593\u5230\u9054\u5f8c\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u662f\u4e00\u7a2e\u7c21\u55ae\u6709\u6548\u7684\u6e05\u7406\u65b9\u5f0f\u3002<\/p>\n<pre><code>EXPIRE mykey 60  \/\/ \u8a2d\u7f6e mykey \u5728 60 \u79d2\u5f8c\u904e\u671f<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-ttl-%e5%91%bd%e4%bb%a4-ytydvoCMDn\">2. \u4f7f\u7528 TTL \u547d\u4ee4<\/h3>\n<p>TTL \u547d\u4ee4\u53ef\u4ee5\u67e5\u8a62\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u54ea\u4e9b\u9375\u5373\u5c07\u904e\u671f\u3002<\/p>\n<pre><code>TTL mykey  \/\/ \u67e5\u8a62 mykey \u7684\u5269\u9918\u751f\u5b58\u6642\u9593<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-del-%e5%91%bd%e4%bb%a4-ytydvoCMDn\">3. \u4f7f\u7528 DEL \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u67d0\u500b\u9375\u4e0d\u518d\u9700\u8981\uff0c\u53ef\u4ee5\u4f7f\u7528 DEL \u547d\u4ee4\u76f4\u63a5\u522a\u9664\u8a72\u9375\u3002<\/p>\n<pre><code>DEL mykey  \/\/ \u522a\u9664 mykey<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8-scan-%e5%91%bd%e4%bb%a4-ytydvoCMDn\">4. \u4f7f\u7528 SCAN \u547d\u4ee4<\/h3>\n<p>\u7576\u9700\u8981\u6279\u91cf\u6e05\u7406\u9375\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 SCAN \u547d\u4ee4\u4f86\u904d\u6b77\u6240\u6709\u9375\uff0c\u7136\u5f8c\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u9032\u884c\u522a\u9664\u3002<\/p>\n<pre><code>\nSCAN 0 MATCH prefix:* COUNT 1000\n\/\/ \u904d\u6b77\u6240\u6709\u4ee5 prefix: \u958b\u982d\u7684\u9375\n<\/code><\/pre>\n<h2 id=\"%e8%87%aa%e5%8b%95%e5%8c%96%e6%b8%85%e7%90%86%e7%ad%96%e7%95%a5-ytydvoCMDn\">\u81ea\u52d5\u5316\u6e05\u7406\u7b56\u7565<\/h2>\n<p>\u9664\u4e86\u624b\u52d5\u6e05\u7406\uff0c\u9084\u53ef\u4ee5\u8003\u616e\u81ea\u52d5\u5316\u6e05\u7406\u7b56\u7565\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b9a\u6642\u4efb\u52d9\uff08\u5982 cron job\uff09\u5b9a\u671f\u57f7\u884c\u6e05\u7406\u8173\u672c\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd Redis \u4e2d\u7684\u9375\u59cb\u7d42\u4fdd\u6301\u5728\u5408\u7406\u7684\u7bc4\u570d\u5167\u3002<\/p>\n<pre><code>\n# \u6bcf\u5929\u51cc\u6668 2 \u9ede\u57f7\u884c\u6e05\u7406\u8173\u672c\n0 2 * * * \/usr\/bin\/python \/path\/to\/cleanup_script.py\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-ytydvoCMDn\">\u7d50\u8ad6<\/h2>\n<p>\u5b9a\u671f\u6e05\u7406 Redis \u4e2d\u7684\u9375\u662f\u4fdd\u6301\u7cfb\u7d71\u6027\u80fd\u548c\u6578\u64da\u4e00\u81f4\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u4f7f\u7528 EXPIRE\u3001TTL\u3001DEL \u548c SCAN \u7b49\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406 Redis \u4e2d\u7684\u6578\u64da\u3002\u81ea\u52d5\u5316\u6e05\u7406\u7b56\u7565\u4e5f\u80fd\u9032\u4e00\u6b65\u7c21\u5316\u9019\u4e00\u904e\u7a0b\uff0c\u78ba\u4fdd\u7cfb\u7d71\u904b\u884c\u7684\u9ad8\u6548\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u7c21\u6613\u6e05\u7406\u56de\u6536\u90e8\u5206 Key\uff0c\u5feb\u901f\u91cb\u653e\u672a\u4f7f\u7528\u7684\u8a18\u61b6\u9ad4\uff0c\u63d0\u5347\u6548\u80fd\uff0c\u78ba\u4fdd\u8cc7\u6599\u5eab\u904b\u884c\u6d41\u66a2\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-125009","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125009","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=125009"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125009\/revisions"}],"predecessor-version":[{"id":125010,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125009\/revisions\/125010"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=125009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=125009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=125009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}