{"id":195483,"date":"2024-11-13T15:22:20","date_gmt":"2024-11-13T07:22:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195483\/"},"modified":"2024-11-13T15:22:22","modified_gmt":"2024-11-13T07:22:22","slug":"%e5%85%83%e7%b4%a0redis%e5%88%a9%e7%94%a8key%e5%bf%ab%e9%80%9f%e5%88%aa%e9%99%a4%e5%85%83%e7%b4%a0%ef%bc%88redis%e6%a0%b9%e6%93%9akey%e5%88%aa%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195483\/","title":{"rendered":"\u5143\u7d20Redis\u5229\u7528Key\u5feb\u901f\u522a\u9664\u5143\u7d20\uff08redis\u6839\u64dakey\u522a\u9664\uff09"},"content":{"rendered":"

\u5143\u7d20Redis\u5229\u7528Key\u5feb\u901f\u522a\u9664\u5143\u7d20\uff08redis\u6839\u64dakey\u522a\u9664\uff09<\/h1>\n

Redis\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u5730\u5b58\u53d6\u548c\u64cd\u4f5c\u6578\u64da\u3002\u5728Redis\u4e2d\uff0c\u522a\u9664\u5143\u7d20\u7684\u64cd\u4f5c\u662f\u975e\u5e38\u5e38\u898b\u7684\u9700\u6c42\uff0c\u5c24\u5176\u662f\u7576\u9700\u8981\u6839\u64da\u7279\u5b9a\u7684key\u4f86\u522a\u9664\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u7684key\u4f86\u5feb\u901f\u522a\u9664\u5143\u7d20\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

Redis\u4e2d\u7684Key\u6982\u5ff5<\/h2>\n

\u5728Redis\u4e2d\uff0c\u6bcf\u500b\u6578\u64da\u9805\u90fd\u662f\u7531\u4e00\u500bkey\u548c\u4e00\u500bvalue\u7d44\u6210\u3002key\u662f\u552f\u4e00\u7684\u6a19\u8b58\u7b26\uff0c\u7528\u65bc\u5b58\u53d6\u5c0d\u61c9\u7684value\u3002Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002\u9019\u4e9b\u6578\u64da\u985e\u578b\u7684\u9748\u6d3b\u6027\u4f7f\u5f97Redis\u80fd\u5920\u9069\u61c9\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u3002<\/p>\n

\u522a\u9664\u5143\u7d20\u7684\u57fa\u672c\u547d\u4ee4<\/h2>\n

\u5728Redis\u4e2d\uff0c\u522a\u9664\u5143\u7d20\u7684\u4e3b\u8981\u547d\u4ee4\u662fDEL<\/code>\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u6839\u64da\u6307\u5b9a\u7684key\u4f86\u522a\u9664\u5c0d\u61c9\u7684\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

DEL key1 key2 ...<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500bkey\u70bauser:1001<\/code>\u7684\u6578\u64da\u9805\uff0c\u4e26\u5e0c\u671b\u5c07\u5176\u522a\u9664\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
DEL user:1001<\/code><\/pre>\n
\u57f7\u884c\u9019\u500b\u547d\u4ee4\u5f8c\uff0cRedis\u5c07\u6703\u522a\u9664key\u70bauser:1001<\/code>\u7684\u6578\u64da\u9805\u3002\u5982\u679c\u8a72key\u4e0d\u5b58\u5728\uff0c\u5247\u4e0d\u6703\u6709\u4efb\u4f55\u5f71\u97ff\u3002<\/p>\n
\u6279\u91cf\u522a\u9664\u5143\u7d20<\/h2>\n
\u9664\u4e86\u55ae\u500bkey\u7684\u522a\u9664\uff0cRedis\u9084\u652f\u6301\u6279\u91cf\u522a\u9664\u5143\u7d20\u3002\u4f7f\u7528DEL<\/code>\u547d\u4ee4\u6642\uff0c\u53ef\u4ee5\u4e00\u6b21\u6027\u522a\u9664\u591a\u500bkey\u3002\u4f8b\u5982\uff1a<\/p>\n
DEL user:1001 user:1002 user:1003<\/code><\/pre>\n
\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u591a\u6b21\u8acb\u6c42\u7684\u958b\u92b7\uff0c\u63d0\u9ad8\u64cd\u4f5c\u6548\u7387\u3002<\/p>\n
\u4f7f\u7528\u6a21\u5f0f\u5339\u914d\u522a\u9664\u5143\u7d20<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u6839\u64da\u6a21\u5f0f\u4f86\u522a\u9664\u591a\u500bkey\u3002\u9019\u6642\u53ef\u4ee5\u7d50\u5408KEYS<\/code>\u547d\u4ee4\u548cDEL<\/code>\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u522a\u9664\u6240\u6709\u4ee5user:<\/code>\u958b\u982d\u7684key\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
DEL $(redis-cli KEYS \"user:*\")<\/code><\/pre>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cKEYS<\/code>\u547d\u4ee4\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u6b64\u5728\u751f\u7522\u74b0\u5883\u4e2d\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/p>\n
\u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u522a\u9664<\/h2>\n
Redis\u9084\u652f\u6301\u4f7f\u7528Lua\u8173\u672c\u4f86\u57f7\u884c\u66f4\u8907\u96dc\u7684\u64cd\u4f5c\uff0c\u5305\u62ec\u522a\u9664\u5143\u7d20\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u591a\u500b\u547d\u4ee4\uff0c\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0bLua\u8173\u672c\u53ef\u4ee5\u7528\u4f86\u522a\u9664\u6240\u6709\u4ee5session:<\/code>\u958b\u982d\u7684key\uff1a<\/p>\n
local keys = redis.call('KEYS', 'session:*')\nfor i=1,#keys,5000 do\n    redis.call('DEL', unpack(keys, i, math.min(i+4999, #keys)))\nend<\/code><\/pre>\n
\u9019\u6bb5\u8173\u672c\u5c07\u6703\u5206\u6279\u522a\u9664\u5339\u914d\u7684key\uff0c\u5f9e\u800c\u907f\u514d\u4e00\u6b21\u6027\u522a\u9664\u904e\u591akey\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728Redis\u4e2d\uff0c\u6839\u64dakey\u5feb\u901f\u522a\u9664\u5143\u7d20\u662f\u4e00\u500b\u57fa\u672c\u800c\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u901a\u904e\u4f7f\u7528DEL<\/code>\u547d\u4ee4\u3001\u6279\u91cf\u522a\u9664\u3001\u6a21\u5f0f\u5339\u914d\u4ee5\u53caLua\u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\u3002\u9019\u4e9b\u64cd\u4f5c\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u4e5f\u70ba\u61c9\u7528\u7684\u6027\u80fd\u512a\u5316\u63d0\u4f9b\u4e86\u652f\u6301\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u7a69\u5b9a\u7684\u9999\u6e2fVPS<\/a><\/code>\u548c\u4e91\u670d\u52a1\u5668<\/a><\/code>\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5feb\u901f\u4e86\u89e3\u5982\u4f55\u5728Redis\u4e2d\u5229\u7528Key\u9ad8\u6548\u522a\u9664\u5143\u7d20\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u6027\u80fd\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-195483","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195483","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=195483"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195483\/revisions"}],"predecessor-version":[{"id":195484,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195483\/revisions\/195484"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}