{"id":129591,"date":"2024-10-26T22:47:21","date_gmt":"2024-10-26T14:47:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129591\/"},"modified":"2024-10-26T22:47:22","modified_gmt":"2024-10-26T14:47:22","slug":"redis%e7%b5%b1%e8%a8%88key%e6%95%b8%e9%87%8f%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95%ef%bc%88redis%e7%8d%b2%e5%8f%96key%e6%95%b8%e9%87%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129591\/","title":{"rendered":"Redis\u7d71\u8a08Key\u6578\u91cf\u5be6\u73fe\u65b9\u6cd5\uff08redis\u7372\u53d6key\u6578\u91cf\uff09"},"content":{"rendered":"

Redis\u7d71\u8a08Key\u6578\u91cf\u5be6\u73fe\u65b9\u6cd5\uff08redis\u7372\u53d6key\u6578\u91cf\uff09<\/h1>\n

Redis\u662f\u4e00\u500b\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\u96a8\u8457\u61c9\u7528\u7684\u589e\u9577\uff0c\u7ba1\u7406\u548c\u76e3\u63a7Redis\u4e2d\u7684\u6578\u64da\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u5c31\u662f\u7d71\u8a08Redis\u4e2dKey\u7684\u6578\u91cf\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u7372\u53d6Redis Key\u6578\u91cf\u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u5176\u6578\u64da\u3002<\/p>\n

\u4f7f\u7528Redis\u547d\u4ee4\u7372\u53d6Key\u6578\u91cf<\/h2>\n

Redis\u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u547d\u4ee4\u4f86\u7372\u53d6Key\u7684\u6578\u91cf\uff0c\u5373\u4f7f\u7528 DBSIZE<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u7576\u524d\u6578\u64da\u5eab\u4e2dKey\u7684\u7e3d\u6578\u3002<\/p>\n

127.0.0.1:6379> DBSIZE\n(integer) 42\n<\/code><\/pre>\n
\u9019\u500b\u65b9\u6cd5\u975e\u5e38\u76f4\u63a5\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cDBSIZE<\/code> \u53ea\u6703\u8fd4\u56de\u7576\u524d\u9078\u5b9a\u6578\u64da\u5eab\u7684Key\u6578\u91cf\u3002\u5982\u679c\u4f60\u6709\u591a\u500b\u6578\u64da\u5eab\uff0c\u5247\u9700\u8981\u5207\u63db\u5230\u76f8\u61c9\u7684\u6578\u64da\u5eab\u5f8c\u518d\u57f7\u884c\u6b64\u547d\u4ee4\u3002<\/p>\n
\u4f7f\u7528SCAN\u547d\u4ee4\u904d\u6b77Key<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7279\u5225\u662f\u7576Key\u7684\u6578\u91cf\u975e\u5e38\u9f90\u5927\u6642\uff0c\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4\u4f86\u904d\u6b77\u6240\u6709\u7684Key\u53ef\u80fd\u6703\u66f4\u6709\u6548\u3002SCAN<\/code> \u547d\u4ee4\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u7684Key\uff0c\u800c\u662f\u5206\u6279\u8fd4\u56de\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4\u4f86\u8a08\u7b97Key\u6578\u91cf\u7684\u793a\u4f8b\uff1a<\/p>\n
127.0.0.1:6379> SCAN 0\n1) \"0\"\n2) 1) \"key1\"\n   2) \"key2\"\n   3) \"key3\"\n   ...\n<\/code><\/pre>\n
\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u500b\u5faa\u74b0\u4f86\u6301\u7e8c\u8abf\u7528 SCAN<\/code>\uff0c\u76f4\u5230\u8fd4\u56de\u7684\u6e38\u6a19\u70ba0\uff0c\u4e26\u5728\u6b64\u904e\u7a0b\u4e2d\u8a08\u7b97Key\u7684\u6578\u91cf\u3002<\/p>\n
\nint count = 0;\nString cursor = \"0\";\ndo {\n    ScanResult scanResult = redisTemplate.execute((RedisCallback<ScanResult>) connection -> {\n        return connection.scan(ScanOptions.scanOptions().match(\"*\").count(100).build());\n    });\n    count += scanResult.getResult().size();\n    cursor = scanResult.getCursor();\n} while (!cursor.equals(\"0\"));\n<\/code><\/pre>\n
\u4f7f\u7528Redis\u7684Key\u6a21\u5f0f\u5339\u914d<\/h2>\n
\u5982\u679c\u4f60\u53ea\u60f3\u7d71\u8a08\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684Key\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 KEYS<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u5141\u8a31\u4f60\u4f7f\u7528\u901a\u914d\u7b26\u4f86\u5339\u914dKey\u3002<\/p>\n
127.0.0.1:6379> KEYS user:*\n1) \"user:1\"\n2) \"user:2\"\n3) \"user:3\"\n<\/code><\/pre>\n
\u7136\u800c\uff0cKEYS<\/code> \u547d\u4ee4\u5728Key\u6578\u91cf\u975e\u5e38\u9f90\u5927\u7684\u60c5\u6cc1\u4e0b\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\u7528Redis\u7684\u7d71\u8a08\u5de5\u5177<\/h2>\n
\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5de5\u5177\u4f86\u76e3\u63a7Redis\u7684\u6027\u80fd\u548cKey\u6578\u91cf\u3002\u4f8b\u5982\uff0cRedis Desktop Manager\u548cRedisInsight\u7b49\u5de5\u5177\u63d0\u4f9b\u4e86\u53ef\u8996\u5316\u754c\u9762\uff0c\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u67e5\u770b\u548c\u7ba1\u7406Redis\u4e2d\u7684\u6578\u64da\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728Redis\u4e2d\u7372\u53d6Key\u7684\u6578\u91cf\u6709\u591a\u7a2e\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528 DBSIZE<\/code> \u547d\u4ee4\u3001SCAN<\/code> \u547d\u4ee4\u4ee5\u53ca KEYS<\/code> \u547d\u4ee4\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u76e3\u63a7Redis\u4e2d\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6027\u80fd\u7684\u61c9\u7528\uff0c\u5efa\u8b70\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4\u4f86\u907f\u514d\u6027\u80fd\u74f6\u9838\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\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u9700\u8981\u7a69\u5b9a\u7684 \u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 \u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3Redis\u4e2d\u7d71\u8a08Key\u6578\u91cf\u7684\u5be6\u73fe\u65b9\u6cd5\uff0c\u8f15\u9b06\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u7684Key\u6578\u91cf\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-129591","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129591","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=129591"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129591\/revisions"}],"predecessor-version":[{"id":129592,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129591\/revisions\/129592"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}