{"id":196414,"date":"2024-11-13T23:23:21","date_gmt":"2024-11-13T15:23:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196414\/"},"modified":"2024-11-13T23:23:22","modified_gmt":"2024-11-13T15:23:22","slug":"%e5%80%bcredis%e5%af%a6%e7%8f%bemap%e4%b8%ad%e6%9c%80%e5%b0%8f%e5%80%bc%e7%9a%84%e6%9f%a5%e8%a9%a2%ef%bc%88redis%e6%9f%a5map%e6%9c%80%e5%b0%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196414\/","title":{"rendered":"\u503cRedis\u5be6\u73feMap\u4e2d\u6700\u5c0f\u503c\u7684\u67e5\u8a62\uff08redis\u67e5map\u6700\u5c0f\uff09"},"content":{"rendered":"

\u503cRedis\u5be6\u73feMap\u4e2d\u6700\u5c0f\u503c\u7684\u67e5\u8a62\uff08redis\u67e5map\u6700\u5c0f\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5feb\u901f\u67e5\u8a62\u548c\u9ad8\u6548\u5b58\u5132\u6578\u64da\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u67e5\u8a62\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u67e5\u8a62Map\u4e2d\u6700\u5c0f\u503c\u7684\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n

Redis\u7684\u6578\u64da\u7d50\u69cb<\/h2>\n

Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5176\u4e2d\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u5c0d\u65bc\u67e5\u8a62Map\u4e2d\u6700\u5c0f\u503c\u7684\u9700\u6c42\uff0c\u54c8\u5e0c\uff08Hash\uff09\u548c\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09\u662f\u6700\u5e38\u7528\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n

\u54c8\u5e0c\uff08Hash\uff09<\/h3>\n

\u54c8\u5e0c\u662f\u4e00\u7a2e\u9375\u503c\u5c0d\u7684\u96c6\u5408\uff0c\u9069\u5408\u7528\u4f86\u5b58\u5132\u5c0d\u8c61\u7684\u5c6c\u6027\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u7684\u54c8\u5e0c\u8868\uff0c\u5b58\u5132\u7528\u6236\u7684ID\u548c\u5206\u6578\uff1a<\/p>\n

HSET user:1 score 50\nHSET user:2 score 30\nHSET user:3 score 70\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528HGETALL\u547d\u4ee4\u4f86\u7372\u53d6\u6240\u6709\u7528\u6236\u7684\u5206\u6578\uff0c\u7136\u5f8c\u5728\u61c9\u7528\u5c64\u9032\u884c\u6700\u5c0f\u503c\u7684\u67e5\u8a62\u3002<\/p>\n
\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09<\/h3>\n
\u6709\u5e8f\u96c6\u5408\u662f\u4e00\u7a2e\u53ef\u4ee5\u6839\u64da\u5206\u6578\u9032\u884c\u6392\u5e8f\u7684\u96c6\u5408\uff0c\u9019\u4f7f\u5f97\u67e5\u8a62\u6700\u5c0f\u503c\u8b8a\u5f97\u66f4\u52a0\u9ad8\u6548\u3002\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\uff0c\u6211\u5011\u53ef\u4ee5\u76f4\u63a5\u7372\u53d6\u6700\u5c0f\u503c\uff0c\u800c\u7121\u9700\u904d\u6b77\u6574\u500b\u96c6\u5408\u3002<\/p>\n
ZADD user_scores 50 user:1\nZADD user_scores 30 user:2\nZADD user_scores 70 user:3\n<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c\u6211\u5011\u4f7f\u7528ZADD\u547d\u4ee4\u5c07\u7528\u6236\u7684\u5206\u6578\u6dfb\u52a0\u5230\u6709\u5e8f\u96c6\u5408\u4e2d\u3002\u8981\u67e5\u8a62\u6700\u5c0f\u503c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528ZRANGE\u547d\u4ee4\uff1a<\/p>\n
ZREVRANGE user_scores 0 0 WITHSCORES\n<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u8fd4\u56de\u5206\u6578\u6700\u4f4e\u7684\u7528\u6236\u53ca\u5176\u5206\u6578\u3002<\/p>\n
\u67e5\u8a62Map\u4e2d\u6700\u5c0f\u503c\u7684\u5be6\u73fe<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Redis\u4e2d\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u4f86\u67e5\u8a62Map\u4e2d\u6700\u5c0f\u503c\uff1a<\/p>\n
import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u6dfb\u52a0\u7528\u6236\u5206\u6578\nr.zadd('user_scores', {'user:1': 50, 'user:2': 30, 'user:3': 70})\n\n# \u67e5\u8a62\u6700\u5c0f\u503c\nmin_user = r.zrange('user_scores', 0, 0, withscores=True)\nprint(f'\u5206\u6578\u6700\u4f4e\u7684\u7528\u6236\u662f: {min_user[0][0].decode(\"utf-8\")}\uff0c\u5206\u6578\u70ba: {min_user[0][1]}')\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230Redis\uff0c\u7136\u5f8c\u4f7f\u7528ZADD\u547d\u4ee4\u6dfb\u52a0\u7528\u6236\u7684\u5206\u6578\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528ZRANGE\u547d\u4ee4\u67e5\u8a62\u5206\u6578\u6700\u4f4e\u7684\u7528\u6236\uff0c\u4e26\u5c07\u7d50\u679c\u6253\u5370\u51fa\u4f86\u3002<\/p>\n
\u6027\u80fd\u8003\u91cf<\/h2>\n
\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u67e5\u8a62\u6700\u5c0f\u503c\u7684\u6027\u80fd\u512a\u65bc\u54c8\u5e0c\uff0c\u56e0\u70ba\u6709\u5e8f\u96c6\u5408\u5167\u90e8\u4f7f\u7528\u8df3\u8868\uff08Skip List\uff09\u4f86\u7dad\u8b77\u5143\u7d20\u7684\u9806\u5e8f\uff0c\u67e5\u8a62\u64cd\u4f5c\u7684\u6642\u9593\u8907\u96dc\u5ea6\u70baO(log(N))\u3002\u800c\u54c8\u5e0c\u8868\u5247\u9700\u8981\u904d\u6b77\u6240\u6709\u5143\u7d20\u4f86\u67e5\u627e\u6700\u5c0f\u503c\uff0c\u6642\u9593\u8907\u96dc\u5ea6\u70baO(N)\u3002\u56e0\u6b64\uff0c\u5c0d\u65bc\u9700\u8981\u983b\u7e41\u67e5\u8a62\u6700\u5c0f\u503c\u7684\u5834\u666f\uff0c\u9078\u64c7\u6709\u5e8f\u96c6\u5408\u662f\u4e00\u500b\u66f4\u597d\u7684\u9078\u64c7\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728Redis\u4e2d\u67e5\u8a62Map\u4e2d\u6700\u5c0f\u503c\u7684\u5be6\u73fe\u53ef\u4ee5\u901a\u904e\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u4f86\u9ad8\u6548\u5b8c\u6210\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u7c21\u5316\u4e86\u67e5\u8a62\u904e\u7a0b\uff0c\u9084\u63d0\u9ad8\u4e86\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u67e5\u8a62\u7684\u61c9\u7528\u5834\u666f\uff0cRedis\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u9ad8\u6548\u67e5\u8a62Map\u4e2d\u7684\u6700\u5c0f\u503c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6027\u80fd\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-196414","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196414","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=196414"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196414\/revisions"}],"predecessor-version":[{"id":196415,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196414\/revisions\/196415"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}