{"id":188190,"date":"2024-11-11T20:34:27","date_gmt":"2024-11-11T12:34:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188190\/"},"modified":"2024-11-11T20:34:28","modified_gmt":"2024-11-11T12:34:28","slug":"%e7%ae%97%e6%b3%95%e5%88%a9%e7%94%a8redis%e7%b2%be%e6%ba%96%e8%a8%88%e7%ae%97%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%ef%bc%88redis%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188190\/","title":{"rendered":"\u7b97\u6cd5\u5229\u7528Redis\u7cbe\u6e96\u8a08\u7b97\u7d93\u7def\u5ea6\u8ddd\u96e2\uff08redis\u7d93\u7def\u5ea6\u8ddd\u96e2\uff09"},"content":{"rendered":"<h1 id=\"%e7%ae%97%e6%b3%95%e5%88%a9%e7%94%a8redis%e7%b2%be%e6%ba%96%e8%a8%88%e7%ae%97%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%ef%bc%88redis%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%ef%bc%89-ouCyYRcxbd\">\u7b97\u6cd5\u5229\u7528Redis\u7cbe\u6e96\u8a08\u7b97\u7d93\u7def\u5ea6\u8ddd\u96e2\uff08redis\u7d93\u7def\u5ea6\u8ddd\u96e2\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5730\u7406\u4f4d\u7f6e\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u6548\u7387\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u7528\u65bc\u7269\u6d41\u3001\u793e\u4ea4\u5a92\u9ad4\u9084\u662f\u5730\u7406\u4fe1\u606f\u7cfb\u7d71\uff08GIS\uff09\uff0c\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u8a08\u7b97\u90fd\u662f\u4e00\u500b\u57fa\u672c\u9700\u6c42\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u7cbe\u78ba\u8a08\u7b97\u7d93\u7def\u5ea6\u4e4b\u9593\u7684\u8ddd\u96e2\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u9032\u884c\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u8a08\u7b97\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%e8%a8%88%e7%ae%97%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-ouCyYRcxbd\">\u7d93\u7def\u5ea6\u8ddd\u96e2\u8a08\u7b97\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u8a08\u7b97\u901a\u5e38\u57fa\u65bc\u5730\u7403\u7684\u7403\u5f62\u6a21\u578b\u3002\u6700\u5e38\u7528\u7684\u8a08\u7b97\u65b9\u6cd5\u662f\u54c8\u5f17\u8f9b\u516c\u5f0f\uff08Haversine Formula\uff09\uff0c\u5b83\u80fd\u5920\u8a08\u7b97\u5169\u500b\u9ede\u4e4b\u9593\u7684\u6700\u77ed\u8ddd\u96e2\u3002\u54c8\u5f17\u8f9b\u516c\u5f0f\u7684\u6578\u5b78\u8868\u9054\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nd = 2 * r * arcsin(\u221a(sin\u00b2((lat2 - lat1)\/2) + cos(lat1) * cos(lat2) * sin\u00b2((lon2 - lon1)\/2)))\n<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>r<\/code>\u662f\u5730\u7403\u7684\u534a\u5f91\uff08\u7d04\u70ba6371\u516c\u91cc\uff09\uff0c<code>lat1<\/code>\u3001<code>lon1<\/code>\u548c<code>lat2<\/code>\u3001<code>lon2<\/code>\u5206\u5225\u662f\u5169\u500b\u9ede\u7684\u7d93\u7def\u5ea6\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9c%b0%e7%90%86%e4%bd%8d%e7%bd%ae%e5%8a%9f%e8%83%bd-ouCyYRcxbd\">Redis\u7684\u5730\u7406\u4f4d\u7f6e\u529f\u80fd<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5167\u5efa\u7684\u5730\u7406\u4f4d\u7f6e\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5b58\u5132\u548c\u67e5\u8a62\u5730\u7406\u5750\u6a19\u3002\u9019\u4e9b\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>GEOADD<\/code>\uff1a\u5c07\u4e00\u7d44\u7d93\u7def\u5ea6\u5750\u6a19\u6dfb\u52a0\u5230Redis\u4e2d\u3002<\/li>\n<li><code>GEODIST<\/code>\uff1a\u8a08\u7b97\u5169\u500b\u5730\u7406\u4f4d\u7f6e\u4e4b\u9593\u7684\u8ddd\u96e2\u3002<\/li>\n<li><code>GEOPOS<\/code>\uff1a\u7372\u53d6\u6307\u5b9a\u5730\u7406\u4f4d\u7f6e\u7684\u7d93\u7def\u5ea6\u3002<\/li>\n<li><code>GEORADIUS<\/code>\uff1a\u67e5\u8a62\u6307\u5b9a\u534a\u5f91\u5167\u7684\u5730\u7406\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e8%a8%88%e7%ae%97%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%e7%9a%84%e7%a4%ba%e4%be%8b-ouCyYRcxbd\">\u4f7f\u7528Redis\u8a08\u7b97\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u8a08\u7b97\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n# \u9023\u63a5\u5230Redis\nimport redis\n\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u6dfb\u52a0\u5730\u7406\u4f4d\u7f6e\nr.geoadd(\"locations\", 113.324, 23.099, \"LocationA\")\nr.geoadd(\"locations\", 114.169, 22.319, \"LocationB\")\n\n# \u8a08\u7b97\u8ddd\u96e2\ndistance = r.geodist(\"locations\", \"LocationA\", \"LocationB\", unit='km')\nprint(f\"LocationA\u548cLocationB\u4e4b\u9593\u7684\u8ddd\u96e2\u70ba\uff1a{distance}\u516c\u91cc\")\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230Redis\u6578\u64da\u5eab\uff0c\u7136\u5f8c\u4f7f\u7528<code>GEOADD<\/code>\u547d\u4ee4\u6dfb\u52a0\u5169\u500b\u5730\u7406\u4f4d\u7f6e\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528<code>GEODIST<\/code>\u547d\u4ee4\u8a08\u7b97\u9019\u5169\u500b\u4f4d\u7f6e\u4e4b\u9593\u7684\u8ddd\u96e2\uff0c\u4e26\u4ee5\u516c\u91cc\u70ba\u55ae\u4f4d\u8f38\u51fa\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8c%96%e7%b6%93%e7%b7%af%e5%ba%a6%e8%b7%9d%e9%9b%a2%e8%a8%88%e7%ae%97%e7%9a%84%e8%80%83%e9%87%8f-ouCyYRcxbd\">\u512a\u5316\u7d93\u7def\u5ea6\u8ddd\u96e2\u8a08\u7b97\u7684\u8003\u91cf<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u8a08\u7b97\u53ef\u80fd\u6703\u6d89\u53ca\u5927\u91cf\u6578\u64da\u3002\u70ba\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528Redis\u7684\u96c6\u7fa4\u6a21\u5f0f\u4f86\u5206\u6563\u8ca0\u8f09\u3002<\/li>\n<li>\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u5730\u7406\u6578\u64da\uff0c\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u5927\u5c0f\u3002<\/li>\n<li>\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u8ddd\u96e2\u55ae\u4f4d\uff08\u5982\u7c73\u3001\u516c\u91cc\u6216\u82f1\u91cc\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ouCyYRcxbd\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528Redis\u9032\u884c\u7d93\u7def\u5ea6\u8ddd\u96e2\u7684\u8a08\u7b97\u4e0d\u50c5\u9ad8\u6548\uff0c\u800c\u4e14\u7c21\u55ae\u6613\u7528\u3002\u901a\u904e\u5167\u5efa\u7684\u5730\u7406\u4f4d\u7f6e\u529f\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u5be6\u73fe\u5730\u7406\u6578\u64da\u7684\u5b58\u5132\u548c\u67e5\u8a62\uff0c\u5f9e\u800c\u652f\u6301\u5404\u7a2e\u57fa\u65bc\u4f4d\u7f6e\u7684\u61c9\u7528\u3002\u96a8\u8457\u5730\u7406\u4fe1\u606f\u6280\u8853\u7684\u767c\u5c55\uff0cRedis\u5c07\u5728\u672a\u4f86\u7684\u61c9\u7528\u4e2d\u626e\u6f14\u8d8a\u4f86\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u9805\u76ee\u4e2d\u4f7f\u7528Redis\u9032\u884c\u7d93\u7def\u5ea6\u8ddd\u96e2\u8a08\u7b97\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u7cbe\u6e96\u8a08\u7b97\u7d93\u7def\u5ea6\u8ddd\u96e2\uff0c\u63d0\u5347\u5730\u7406\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u5be6\u73fe\u5feb\u901f\u5b9a\u4f4d\u8207\u8ddd\u96e2\u67e5\u8a62\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-188190","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188190","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=188190"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188190\/revisions"}],"predecessor-version":[{"id":188191,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188190\/revisions\/188191"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}