{"id":202223,"date":"2025-05-10T08:29:07","date_gmt":"2025-05-10T00:29:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202223\/"},"modified":"2025-05-10T08:29:07","modified_gmt":"2025-05-10T00:29:07","slug":"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e5%92%8cnode-js%e5%bc%80%e5%8f%91%e5%ae%9e%e6%97%b6%e5%9c%b0%e5%9b%be%e5%ae%9a%e4%bd%8d%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202223\/","title":{"rendered":"\u5982\u4f55\u5229\u7528Redis\u548cNode.js\u5f00\u53d1\u5b9e\u65f6\u5730\u56fe\u5b9a\u4f4d\u529f\u80fd"},"content":{"rendered":"

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

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\u4e00\u3001Redis\u4ecb\u7ecd
Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\uff0c\u5e38\u7528\u4e8e\u7f13\u5b58\u3001\u6d88\u606f\u961f\u5217\u3001\u4efb\u52a1\u961f\u5217\u7b49\u573a\u666f\u3002Redis\u4ee5\u952e\u503c\u5bf9\u7684\u5f62\u5f0f\u5b58\u50a8\u6570\u636e\uff0c\u5e76\u652f\u6301\u5404\u79cd\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u54c8\u5e0c\u8868\u3001\u96c6\u5408\u7b49\u3002\u5b83\u5177\u6709\u9ad8\u6027\u80fd\u3001\u9ad8\u5e76\u53d1\u548c\u6301\u4e45\u5316\u7684\u7279\u70b9\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406\u5b9e\u65f6\u5730\u56fe\u5b9a\u4f4d\u7684\u9700\u6c42\u3002<\/p>\n

\u4e8c\u3001Node.js\u4ecb\u7ecd
Node.js\u662f\u4e00\u4e2a\u57fa\u4e8eChrome V8\u5f15\u64ce\u7684JavaScript\u8fd0\u884c\u65f6\u73af\u5883\uff0c\u7528\u4e8e\u6784\u5efa\u9ad8\u6548\u7684\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u3002Node.js\u91c7\u7528\u4e8b\u4ef6\u9a71\u52a8\u3001\u975e\u963b\u585eI\/O\u6a21\u578b\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u5e76\u53d1\u8fde\u63a5\u3002\u5b83\u5177\u6709\u8f7b\u91cf\u3001\u9ad8\u6548\u548c\u6613\u4e8e\u6269\u5c55\u7b49\u7279\u70b9\uff0c\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5b9e\u65f6\u5730\u56fe\u5b9a\u4f4d\u529f\u80fd\u7684\u5f00\u53d1\u3002<\/p>\n

\u4e09\u3001\u5f00\u53d1\u5b9e\u65f6\u5730\u56fe\u5b9a\u4f4d\u529f\u80fd
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    \n
  1. \u7528\u6237\u5b9a\u4f4d\u7684\u5b9e\u65f6\u66f4\u65b0
    \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Redis\u4e2d\u521b\u5efa\u4e00\u4e2a\u6709\u5e8f\u96c6\u5408\u6765\u5b58\u50a8\u7528\u6237\u7684\u4f4d\u7f6e\u4fe1\u606f\u3002\u6709\u5e8f\u96c6\u5408\u7684\u6210\u5458\u662f\u7528\u6237\u7684\u552f\u4e00\u6807\u8bc6\uff0c\u800c\u5206\u503c\u5219\u662f\u7528\u6237\u7684\u7ecf\u5ea6\u548c\u7eac\u5ea6\u5750\u6807\u3002\u5728\u7528\u6237\u5b9a\u4f4d\u66f4\u65b0\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5c06\u5176\u5728\u6709\u5e8f\u96c6\u5408\u4e2d\u5bf9\u5e94\u7684\u6210\u5458\u7684\u5206\u503c\u8fdb\u884c\u66f4\u65b0\u5373\u53ef\u3002<\/li>\n<\/ol>\n

    \u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    const redis = require('redis');\nconst client = redis.createClient();\n\nfunction updateUserLocation(userId, longitude, latitude) {\n    client.zadd('userLocations', longitude, userId, (err, reply) => {\n        if (err) throw err;\n        console.log('User location updated successfully!');\n    });\n}<\/pre>\n
      \n
    1. \u7528\u6237\u4f4d\u7f6e\u7684\u5b9e\u65f6\u67e5\u8be2
      \u7528\u6237\u4f4d\u7f6e\u7684\u5b9e\u65f6\u67e5\u8be2\u53ef\u4ee5\u901a\u8fc7\u8303\u56f4\u67e5\u8be2\u6765\u5b9e\u73b0\u3002\u5728Redis\u6709\u5e8f\u96c6\u5408\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528ZRANGEBYSCORE\u547d\u4ee4\u6765\u67e5\u8be2\u7ed9\u5b9a\u5206\u6570\u8303\u56f4\u5185\u7684\u6210\u5458\uff0c\u4ece\u800c\u5b9e\u73b0\u7528\u6237\u4f4d\u7f6e\u7684\u5b9e\u65f6\u67e5\u8be2\u3002<\/li>\n<\/ol>\n
      \u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
      function getUsersWithinRange(minLongitude, maxLongitude, minLatitude, maxLatitude) {\n    client.zrangebyscore('userLocations', minLongitude, maxLongitude, 'WITHSCORES', (err, reply) => {\n        if (err) throw err;\n        const users = [];\n        for (let i = 0; i < reply.length; i += 2) {\n            const userId = reply[i];\n            const longitude = reply[i + 1];\n            const latitude = ...; \/\/ \u6839\u636e\u7ecf\u5ea6\u8ba1\u7b97\u7eac\u5ea6\n            users.push({\n                userId: userId,\n                longitude: longitude,\n                latitude: latitude\n            });\n        }\n        console.log('Users within range:', users);\n    });\n}<\/pre>\n
      \u56db\u3001\u603b\u7ed3
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      \n
      \n <\/dt>\n
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      \n
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      \u5982\u4f55\u5229\u7528Redis\u548cNode.j...<\/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-202223","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202223","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=202223"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202223\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}