{"id":247370,"date":"2024-01-02T21:12:22","date_gmt":"2024-01-02T13:12:22","guid":{"rendered":"https:\/\/www.idc.net\/help\/247370\/"},"modified":"2024-01-02T21:12:22","modified_gmt":"2024-01-02T13:12:22","slug":"mongodb-%e6%9c%af%e8%af%ad-2d-%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247370\/","title":{"rendered":"MongoDB \u672f\u8bed &#8211; 2d \u7d22\u5f15"},"content":{"rendered":"<p><title id=\"mongodb-%e6%9c%af%e8%af%ad-2d-%e7%b4%a2%e5%bc%95-WFvyZjYEQO\">MongoDB \u672f\u8bed - 2d \u7d22\u5f15<\/title><\/p>\n<h1 id=\"mongodb-%e6%9c%af%e8%af%ad-2d-%e7%b4%a2%e5%bc%95-WFvyZjYEQO\">MongoDB \u672f\u8bed - 2d \u7d22\u5f15<\/h1>\n<p>\u5728MongoDB\u4e2d\uff0c2d\u7d22\u5f15\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u652f\u6301\u5730\u7406\u7a7a\u95f4\u6570\u636e\u7684\u67e5\u8be2\u548c\u5206\u6790\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u9ad8\u6548\u5730\u5904\u7406\u5730\u7406\u4f4d\u7f6e\u76f8\u5173\u7684\u6570\u636e\u3002<\/p>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%af2d%e7%b4%a2%e5%bc%95%ef%bc%9f-WFvyZjYEQO\">\u4ec0\u4e48\u662f2d\u7d22\u5f15\uff1f<\/h2>\n<p>2d\u7d22\u5f15\u662fMongoDB\u4e2d\u7684\u4e00\u79cd\u5730\u7406\u7a7a\u95f4\u7d22\u5f15\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u67e5\u8be2\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u5c06\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u6620\u5c04\u5230\u4e8c\u7ef4\u5e73\u9762\u4e0a\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7279\u6b8a\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5982\u8303\u56f4\u67e5\u8be2\u3001\u90bb\u8fd1\u67e5\u8be2\u548c\u533a\u57df\u67e5\u8be2\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%ba2d%e7%b4%a2%e5%bc%95%ef%bc%9f-WFvyZjYEQO\">\u5982\u4f55\u521b\u5efa2d\u7d22\u5f15\uff1f<\/h2>\n<p>\u8981\u521b\u5efa2d\u7d22\u5f15\uff0c\u9996\u5148\u9700\u8981\u786e\u4fddMongoDB\u7684\u7248\u672c\u652f\u6301\u5730\u7406\u7a7a\u95f4\u7d22\u5f15\u3002\u7136\u540e\uff0c\u5728\u96c6\u5408\u4e2d\u9009\u62e9\u4e00\u4e2a\u5305\u542b\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u7684\u5b57\u6bb5\uff0c\u5e76\u4f7f\u7528createIndex()\u65b9\u6cd5\u521b\u5efa2d\u7d22\u5f15\u3002<\/p>\n<pre><code>db.collection.createIndex({ location: \"2d\" })\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u5728\u540d\u4e3a\"location\"\u7684\u5b57\u6bb5\u4e0a\u521b\u5efa\u4e00\u4e2a2d\u7d22\u5f15\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a82d%e7%b4%a2%e5%bc%95%e8%bf%9b%e8%a1%8c%e6%9f%a5%e8%af%a2%ef%bc%9f-WFvyZjYEQO\">\u5982\u4f55\u4f7f\u75282d\u7d22\u5f15\u8fdb\u884c\u67e5\u8be2\uff1f<\/h2>\n<p>\u4e00\u65e6\u521b\u5efa\u4e862d\u7d22\u5f15\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528$near\u64cd\u4f5c\u7b26\u6267\u884c\u90bb\u8fd1\u67e5\u8be2\u3002$near\u64cd\u4f5c\u7b26\u63a5\u53d7\u4e00\u4e2a\u5730\u7406\u4f4d\u7f6e\u70b9\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u8ddd\u79bb\u8be5\u70b9\u6700\u8fd1\u7684\u6587\u6863\u3002<\/p>\n<pre><code>db.collection.find({ location: { $near: [x, y] } })\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u8fd4\u56de\u8ddd\u79bb\u5750\u6807\u70b9[x, y]\u6700\u8fd1\u7684\u6587\u6863\u3002<\/p>\n<h2 id=\"2d%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bc%98%e5%8a%bf%e5%92%8c%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af-WFvyZjYEQO\">2d\u7d22\u5f15\u7684\u4f18\u52bf\u548c\u5e94\u7528\u573a\u666f<\/h2>\n<p>2d\u7d22\u5f15\u5728\u5904\u7406\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u65f6\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u5730\u7406\u4f4d\u7f6e\u67e5\u8be2\uff1a2d\u7d22\u5f15\u53ef\u4ee5\u52a0\u901f\u5730\u7406\u4f4d\u7f6e\u76f8\u5173\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<li>\u7075\u6d3b\u7684\u67e5\u8be2\u64cd\u4f5c\uff1a2d\u7d22\u5f15\u652f\u6301\u8303\u56f4\u67e5\u8be2\u3001\u90bb\u8fd1\u67e5\u8be2\u548c\u533a\u57df\u67e5\u8be2\u7b49\u7279\u6b8a\u64cd\u4f5c\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u7075\u6d3b\u5730\u5904\u7406\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u3002<\/li>\n<li>\u9002\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u573a\u666f\uff1a2d\u7d22\u5f15\u9002\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u573a\u666f\uff0c\u5982\u5730\u56fe\u5e94\u7528\u3001\u4f4d\u7f6e\u670d\u52a1\u3001\u5546\u4e1a\u5206\u6790\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-WFvyZjYEQO\">\u603b\u7ed3<\/h2>\n<p>2d\u7d22\u5f15\u662fMongoDB\u4e2d\u7528\u4e8e\u5904\u7406\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u7684\u4e00\u79cd\u7279\u6b8a\u7d22\u5f15\u3002\u5b83\u53ef\u4ee5\u52a0\u901f\u5730\u7406\u4f4d\u7f6e\u76f8\u5173\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7279\u6b8a\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5982\u8303\u56f4\u67e5\u8be2\u3001\u90bb\u8fd1\u67e5\u8be2\u548c\u533a\u57df\u67e5\u8be2\u3002\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u5730\u7406\u4f4d\u7f6e\u6570\u636e\u7684\u5e94\u7528\u573a\u666f\uff0c2d\u7d22\u5f15\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002<\/p>\n<h3 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-WFvyZjYEQO\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u8bf7\u8003\u8651\u9009\u62e9\u540e\u6d6a\u4e91\u3002\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u53ef\u6ee1\u8db3\u60a8\u7684\u5404\u79cd\u9700\u6c42\u3002\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee<a href=\"https:\/\/idc.net\">\u540e\u6d6a\u4e91\u5b98\u7f51<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB \u672f\u8bed - 2d \u7d22\u5f15 MongoDB \u672f\u8bed - 2d \u7d22\u5f15 \u5728MongoDB\u4e2d\uff0c2d\u7d22\u5f15\u662f\u4e00\u79cd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-247370","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=247370"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247370\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}