{"id":202261,"date":"2025-05-10T10:19:56","date_gmt":"2025-05-10T02:19:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202261\/"},"modified":"2025-05-10T10:19:56","modified_gmt":"2025-05-10T02:19:56","slug":"redis%ef%bc%9a%e5%bf%ab%e9%80%9f%e6%9e%84%e5%bb%ba%e5%ae%9e%e6%97%b6%e7%bb%9f%e8%ae%a1%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202261\/","title":{"rendered":"Redis\uff1a\u5feb\u901f\u6784\u5efa\u5b9e\u65f6\u7edf\u8ba1\u7cfb\u7edf"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\uff1a\u5feb\u901f\u6784\u5efa\u5b9e\u65f6\u7edf\u8ba1\u7cfb\u7edf<\/h1>\n

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Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u79cd\u57fa\u4e8e\u5185\u5b58\u7684\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\uff0c\u5177\u6709\u8f7b\u4fbf\u3001\u9ad8\u6548\u3001\u6613\u7528\u7b49\u7279\u70b9\u3002\u5b83\u4e0d\u4ec5\u662f\u4e00\u4e2a\u9ad8\u901f\u7684\u952e\u503c\u5bf9\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u800c\u4e14\u63d0\u4f9b\u4e86\u5404\u79cd\u7075\u6d3b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u6563\u5217\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\uff0c\u53ef\u4ee5\u652f\u6301\u5404\u79cd\u573a\u666f\u7684\u5e94\u7528\u3002\u9664\u6b64\u4e4b\u5916\uff0cRedis\u8fd8\u62e5\u6709\u5f3a\u5927\u7684\u5b9e\u65f6\u8ba1\u7b97\u80fd\u529b\uff0c\u53ef\u4ee5\u5feb\u901f\u6784\u5efa\u5b9e\u65f6\u7edf\u8ba1\u7cfb\u7edf\u3002<\/p>\n

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import redis\n\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef record_user_access(user_id):\n    r.sadd('users', user_id)\n    r.incr('user:%s:access_count' % user_id)<\/pre>\n
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def get_user_count():\n    user_count = r.scard('users')\n    return user_count\n\ndef get_all_users():\n    users = r.smembers('users')\n    return users<\/pre>\n
\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u7edf\u8ba1\u65b9\u6cd5\u662f\u7edf\u8ba1\u7528\u6237\u8bbf\u95ee\u91cf\u6700\u9ad8\u7684N\u4e2a\u7528\u6237\uff0c\u8fd9\u53ef\u4ee5\u4f7f\u7528Redis\u7684ZADD\u547d\u4ee4\u5c06\u7528\u6237\u8bbf\u95ee\u8ba1\u6570\u5668\u4f5c\u4e3a\u5206\u6570\uff0c\u7528\u6237ID\u4f5c\u4e3a\u6210\u5458\u6dfb\u52a0\u5230\u4e00\u4e2a\u6709\u5e8f\u96c6\u5408\u4e2d\u3002<\/p>\n
def get_top_n_users(n):\n    top_n = r.zrevrangebyscore('access_count', '+inf', '-inf', start=0, num=n)\n    return top_n\n\ndef record_user_access(user_id):\n    r.sadd('users', user_id)\n    r.zincrby('access_count', user_id, amount=1)<\/pre>\n
\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u4e86Redis\u7684ZREVRANGEBYSCORE\u547d\u4ee4\u83b7\u53d6\u5f97\u5206\u6700\u9ad8\u7684N\u4e2a\u7528\u6237\u3002<\/p>\n
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def record_page_view(url):\n    r.hincrby('page_views', url, amount=1)\n\ndef get_page_view(url):\n    page_view = r.hget('page_views', url)\n    return page_view<\/pre>\n
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\n
\n <\/dt>\n
\n   \u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u670d\u52a1\u76d1\u63a7\u548c\u81ea\u52a8\u62a5\u8b66\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   Redis\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u538b\u7f29\u4e0e\u89e3\u538b\u7f29\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
Redis\uff1a\u5feb\u901f\u6784\u5efa\u5b9e\u65f6\u7edf\u8ba1\u7cfb\u7edf...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-202261","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202261","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202261"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202261\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}