{"id":169741,"date":"2024-11-06T19:39:18","date_gmt":"2024-11-06T11:39:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169741\/"},"modified":"2024-11-06T19:39:19","modified_gmt":"2024-11-06T11:39:19","slug":"%e6%a8%a1%e7%b3%8a%e6%9f%a5%e6%89%beredis%e4%b8%ad%e7%9a%84key%e7%b4%85%e8%89%b2%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%88redis%e6%a8%a1%e7%b3%8a%e9%81%8d%e6%ad%b7key%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169741\/","title":{"rendered":"\u6a21\u7cca\u67e5\u627eredis\u4e2d\u7684key\u7d05\u8272\u89e3\u6c7a\u65b9\u6848\uff08redis\u6a21\u7cca\u904d\u6b77key\uff09"},"content":{"rendered":"

\u6a21\u7cca\u67e5\u627eRedis\u4e2d\u7684Key\u7d05\u8272\u89e3\u6c7a\u65b9\u6848\uff08Redis\u6a21\u7cca\u904d\u6b77Key\uff09<\/h1>\n

\u5728\u4f7f\u7528Redis\u4f5c\u70ba\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u7d93\u5e38\u9700\u8981\u67e5\u627e\u7279\u5b9a\u7684Key\u3002\u7576Key\u7684\u6578\u91cf\u9f90\u5927\u6642\uff0c\u7cbe\u78ba\u67e5\u627e\u53ef\u80fd\u6703\u8b8a\u5f97\u56f0\u96e3\u3002\u9019\u6642\uff0c\u6a21\u7cca\u67e5\u627e\uff08\u6216\u7a31\u70ba\u901a\u914d\u7b26\u67e5\u627e\uff09\u4fbf\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u9032\u884c\u6a21\u7cca\u67e5\u627e\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n

Redis\u4e2d\u7684Key\u7d50\u69cb<\/h2>\n

\u5728\u6df1\u5165\u6a21\u7cca\u67e5\u627e\u4e4b\u524d\uff0c\u4e86\u89e3Redis\u4e2d\u7684Key\u7d50\u69cb\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002Redis\u7684Key\u53ef\u4ee5\u662f\u4efb\u610f\u5b57\u4e32\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u6578\u64da\u985e\u578b\uff08\u5982String\u3001List\u3001Set\u3001Hash\u7b49\uff09\u4f86\u5b58\u5132\u6578\u64da\u3002\u9019\u4f7f\u5f97Redis\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u975e\u5e38\u9748\u6d3b\uff0c\u4f46\u540c\u6642\u4e5f\u5e36\u4f86\u4e86\u67e5\u627e\u7684\u6311\u6230\u3002<\/p>\n

\u6a21\u7cca\u67e5\u627e\u7684\u9700\u6c42<\/h2>\n

\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u53ea\u77e5\u9053Key\u7684\u4e00\u90e8\u5206\uff0c\u6216\u8005\u5e0c\u671b\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684Key\u3002\u4f8b\u5982\uff0c\u7576\u9700\u8981\u67e5\u627e\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684Key\u6642\uff0c\u4f7f\u7528\u6a21\u7cca\u67e5\u627e\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n

\u4f7f\u7528SCAN\u547d\u4ee4\u9032\u884c\u6a21\u7cca\u67e5\u627e<\/h2>\n

Redis\u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70baSCAN<\/code>\u7684\u547d\u4ee4\uff0c\u9019\u662f\u4e00\u500b\u975e\u963b\u585e\u7684\u904d\u6b77\u547d\u4ee4\uff0c\u9069\u5408\u7528\u65bc\u6a21\u7cca\u67e5\u627e\u3002\u8207KEYS<\/code>\u547d\u4ee4\u4e0d\u540c\uff0cSCAN<\/code>\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u7684Key\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u5927\u6578\u64da\u96c6\u4e0a\u9020\u6210\u6027\u80fd\u554f\u984c\u3002<\/p>\n

SCAN\u547d\u4ee4\u7684\u57fa\u672c\u7528\u6cd5<\/h3>\n
SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n
\u5176\u4e2d\uff0ccursor<\/code>\u662f\u6e38\u6a19\uff0cMATCH<\/code>\u7528\u65bc\u6307\u5b9a\u5339\u914d\u6a21\u5f0f\uff0cCOUNT<\/code>\u5247\u662f\u6bcf\u6b21\u8fd4\u56de\u7684Key\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u67e5\u627e\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684Key\uff1a<\/p>\n
127.0.0.1:6379> SCAN 0 MATCH user:* COUNT 100<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u8fd4\u56de\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684Key\uff0c\u4e26\u4e14\u6bcf\u6b21\u6700\u591a\u8fd4\u56de100\u500b\u7d50\u679c\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cSCAN<\/code>\u547d\u4ee4\u7684\u8fd4\u56de\u7d50\u679c\u662f\u5206\u6279\u7684\uff0c\u56e0\u6b64\u9700\u8981\u5728\u5faa\u74b0\u4e2d\u6301\u7e8c\u8abf\u7528\uff0c\u76f4\u5230\u6e38\u6a19\u8fd4\u56de0\u70ba\u6b62\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u78bc<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u6bb5\u4f7f\u7528Python\u548cRedis-py\u5eab\u9032\u884c\u6a21\u7cca\u67e5\u627e\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n
import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor, match='user:*', count=100)\n    for key in keys:\n        print(key)\n    if cursor == 0:\n        break<\/code><\/pre>\n
\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u9032\u884c\u66f4\u8907\u96dc\u7684\u67e5\u627e<\/h2>\n
\u5982\u679c\u9700\u8981\u9032\u884c\u66f4\u8907\u96dc\u7684\u67e5\u627e\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u3002\u96d6\u7136Redis\u672c\u8eab\u4e0d\u652f\u6301\u6b63\u5247\u8868\u9054\u5f0f\uff0c\u4f46\u53ef\u4ee5\u5728\u7372\u53d6\u5230\u7684Key\u5217\u8868\u4e2d\u4f7f\u7528Python\u7b49\u8a9e\u8a00\u7684\u6b63\u5247\u8868\u9054\u5f0f\u9032\u884c\u904e\u6ffe\u3002<\/p>\n
import re\n\npattern = re.compile(r'user:d+')\nfiltered_keys = [key for key in keys if pattern.match(key.decode('utf-8'))]\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u6a21\u7cca\u67e5\u627e\u5728Redis\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cfKey\u7684\u60c5\u6cc1\u4e0b\u3002\u4f7f\u7528SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u6709\u6548\u5730\u9032\u884c\u6a21\u7cca\u67e5\u627e\uff0c\u4e26\u4e14\u901a\u904e\u7de8\u7a0b\u8a9e\u8a00\u7684\u6b63\u5247\u8868\u9054\u5f0f\u9032\u884c\u9032\u4e00\u6b65\u904e\u6ffe\uff0c\u53ef\u4ee5\u6eff\u8db3\u66f4\u8907\u96dc\u7684\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u67e5\u627e\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u61c9\u7528\uff0c\u6211\u5011\u7684 \u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Redis\u6a21\u7cca\u67e5\u627e\u89e3\u6c7a\u65b9\u6848\uff0c\u8f15\u9b06\u904d\u6b77\u548c\u7ba1\u7406Redis\u4e2d\u7684\u9375\uff0c\u63d0\u5347\u6578\u64da\u6aa2\u7d22\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\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-169741","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169741","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=169741"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169741\/revisions"}],"predecessor-version":[{"id":169742,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169741\/revisions\/169742"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}