我正在使用 MongoDB 开发应用程序。我想在前端提供的标准功能之一是“自动建议”功能，作为城市前几个字母中的一种类型（例如：如果我开始输入“Mu ...”，它应该建议给用户“孟买/印度”。
我在这里看到了一些线程以及谷歌上的几个站点，这些站点是引用数据库，基本上是基于 RDBMS 的。
这里的任何人都使用或整理了一个文档数据库来获取城市/国家的此类信息？如果是这样，我很想听听数据的来源以及他们在 Lithium/Backbone/MongoDB 应用程序中导入数据所遵循的步骤，包括任何相关的学习。
编辑： https ://developers.google.com/places/documentation/autocomplete 有没有人使用 Facebook 或 Google Places API 在现场/生产环境中查找城市/国家？它在响应速度和稳定性等方面是否满足您的需求？
请查看以下 JSON 国家/地区列表：
[{"country_code":"AD","country_name":"Andorra"}, {"country_code":"AE","country_name":"United Arab Emirates"}, {"country_code":"AF","country_name":"Afghanistan"}, {"country_code":"AG","country_name":"Antigua and Barbuda"}, {"country_code":"AI","country_name":"Anguilla"}, {"country_code":"AL","country_name":"Albania"}, {"country_code":"AM","country_name":"Armenia"}, {"country_code":"AO","country_name":"Angola"}, {"country_code":"AQ","country_name":"Antarctica"}, {"country_code":"AR","country_name":"Argentina"}, {"country_code":"AS","country_name":"American Samoa"}, {"country_code":"AT","country_name":"Austria"}, {"country_code":"AU","country_name":"Australia"}, {"country_code":"AW","country_name":"Aruba"}, {"country_code":"AX","country_name":"\u00c5land"}, {"country_code":"AZ","country_name":"Azerbaijan"}, {"country_code":"BA","country_name":"Bosnia and Herzegovina"}, {"country_code":"BB","country_name":"Barbados"}, {"country_code":"BD","country_name":"Bangladesh"}, {"country_code":"BE","country_name":"Belgium"}, {"country_code":"BF","country_name":"Burkina Faso"}, {"country_code":"BG","country_name":"Bulgaria"}, {"country_code":"BH","country_name":"Bahrain"}, {"country_code":"BI","country_name":"Burundi"}, {"country_code":"BJ","country_name":"Benin"}, {"country_code":"BL","country_name":"Saint Barth\u00e9lemy"}, {"country_code":"BM","country_name":"Bermuda"}, {"country_code":"BN","country_name":"Brunei"}, {"country_code":"BO","country_name":"Bolivia"}, {"country_code":"BQ","country_name":"Bonaire"}, {"country_code":"BR","country_name":"Brazil"}, {"country_code":"BS","country_name":"Bahamas"}, {"country_code":"BT","country_name":"Bhutan"}, {"country_code":"BV","country_name":"Bouvet Island"}, {"country_code":"BW","country_name":"Botswana"}, {"country_code":"BY","country_name":"Belarus"}, {"country_code":"BZ","country_name":"Belize"}, {"country_code":"CA","country_name":"Canada"}, {"country_code":"CC","country_name":"Cocos [Keeling] Islands"}, {"country_code":"CD","country_name":"Democratic Republic of the Congo"}, {"country_code":"CF","country_name":"Central African Republic"}, {"country_code":"CG","country_name":"Republic of the Congo"}, {"country_code":"CH","country_name":"Switzerland"}, {"country_code":"CI","country_name":"Ivory Coast"}, {"country_code":"CK","country_name":"Cook Islands"}, {"country_code":"CL","country_name":"Chile"}, {"country_code":"CM","country_name":"Cameroon"}, {"country_code":"CN","country_name":"China"}, {"country_code":"CO","country_name":"Colombia"}, {"country_code":"CR","country_name":"Costa Rica"}, {"country_code":"CU","country_name":"Cuba"}, {"country_code":"CV","country_name":"Cape Verde"}, {"country_code":"CW","country_name":"Curacao"}, {"country_code":"CX","country_name":"Christmas Island"}, {"country_code":"CY","country_name":"Cyprus"}, {"country_code":"CZ","country_name":"Czech Republic"}, {"country_code":"DE","country_name":"Germany"}, {"country_code":"DJ","country_name":"Djibouti"}, {"country_code":"DK","country_name":"Denmark"}, {"country_code":"DM","country_name":"Dominica"}, {"country_code":"DO","country_name":"Dominican Republic"}, {"country_code":"DZ","country_name":"Algeria"}, {"country_code":"EC","country_name":"Ecuador"}, {"country_code":"EE","country_name":"Estonia"}, {"country_code":"EG","country_name":"Egypt"}, {"country_code":"EH","country_name":"Western Sahara"}, {"country_code":"ER","country_name":"Eritrea"}, {"country_code":"ES","country_name":"Spain"}, {"country_code":"ET","country_name":"Ethiopia"}, {"country_code":"FI","country_name":"Finland"}, {"country_code":"FJ","country_name":"Fiji"}, {"country_code":"FK","country_name":"Falkland Islands"}, {"country_code":"FM","country_name":"Micronesia"}, {"country_code":"FO","country_name":"Faroe Islands"}, {"country_code":"FR","country_name":"France"}, {"country_code":"GA","country_name":"Gabon"}, {"country_code":"GB","country_name":"United Kingdom"}, {"country_code":"GD","country_name":"Grenada"}, {"country_code":"GE","country_name":"Georgia"}, {"country_code":"GF","country_name":"French Guiana"}, {"country_code":"GG","country_name":"Guernsey"}, {"country_code":"GH","country_name":"Ghana"}, {"country_code":"GI","country_name":"Gibraltar"}, {"country_code":"GL","country_name":"Greenland"}, {"country_code":"GM","country_name":"Gambia"}, {"country_code":"GN","country_name":"Guinea"}, {"country_code":"GP","country_name":"Guadeloupe"}, {"country_code":"GQ","country_name":"Equatorial Guinea"}, {"country_code":"GR","country_name":"Greece"}, {"country_code":"GS","country_name":"South Georgia and the South Sandwich Islands"}, {"country_code":"GT","country_name":"Guatemala"}, {"country_code":"GU","country_name":"Guam"}, {"country_code":"GW","country_name":"Guinea-Bissau"}, {"country_code":"GY","country_name":"Guyana"}, {"country_code":"HK","country_name":"Hong Kong"}, {"country_code":"HM","country_name":"Heard Island and McDonald Islands"}, {"country_code":"HN","country_name":"Honduras"}, {"country_code":"HR","country_name":"Croatia"}, {"country_code":"HT","country_name":"Haiti"}, {"country_code":"HU","country_name":"Hungary"}, {"country_code":"ID","country_name":"Indonesia"}, {"country_code":"IE","country_name":"Ireland"}, {"country_code":"IL","country_name":"Israel"}, {"country_code":"IM","country_name":"Isle of Man"}, {"country_code":"IN","country_name":"India"}, {"country_code":"IO","country_name":"British Indian Ocean Territory"}, {"country_code":"IQ","country_name":"Iraq"}, {"country_code":"IR","country_name":"Iran"}, {"country_code":"IS","country_name":"Iceland"}, {"country_code":"IT","country_name":"Italy"}, {"country_code":"JE","country_name":"Jersey"}, {"country_code":"JM","country_name":"Jamaica"}, {"country_code":"JO","country_name":"Jordan"}, {"country_code":"JP","country_name":"Japan"}, {"country_code":"KE","country_name":"Kenya"}, {"country_code":"KG","country_name":"Kyrgyzstan"}, {"country_code":"KH","country_name":"Cambodia"}, {"country_code":"KI","country_name":"Kiribati"}, {"country_code":"KM","country_name":"Comoros"}, {"country_code":"KN","country_name":"Saint Kitts and Nevis"}, {"country_code":"KP","country_name":"North Korea"}, {"country_code":"KR","country_name":"South Korea"}, {"country_code":"KW","country_name":"Kuwait"}, {"country_code":"KY","country_name":"Cayman Islands"}, {"country_code":"KZ","country_name":"Kazakhstan"}, {"country_code":"LA","country_name":"Laos"}, {"country_code":"LB","country_name":"Lebanon"}, {"country_code":"LC","country_name":"Saint Lucia"}, {"country_code":"LI","country_name":"Liechtenstein"}, {"country_code":"LK","country_name":"Sri Lanka"}, {"country_code":"LR","country_name":"Liberia"}, {"country_code":"LS","country_name":"Lesotho"}, {"country_code":"LT","country_name":"Lithuania"}, {"country_code":"LU","country_name":"Luxembourg"}, {"country_code":"LV","country_name":"Latvia"}, {"country_code":"LY","country_name":"Libya"}, {"country_code":"MA","country_name":"Morocco"}, {"country_code":"MC","country_name":"Monaco"}, {"country_code":"MD","country_name":"Moldova"}, {"country_code":"ME","country_name":"Montenegro"}, {"country_code":"MF","country_name":"Saint Martin"}, {"country_code":"MG","country_name":"Madagascar"}, {"country_code":"MH","country_name":"Marshall Islands"}, {"country_code":"MK","country_name":"Macedonia"}, {"country_code":"ML","country_name":"Mali"}, {"country_code":"MM","country_name":"Myanmar [Burma]"}, {"country_code":"MN","country_name":"Mongolia"}, {"country_code":"MO","country_name":"Macao"}, {"country_code":"MP","country_name":"Northern Mariana Islands"}, {"country_code":"MQ","country_name":"Martinique"}, {"country_code":"MR","country_name":"Mauritania"}, {"country_code":"MS","country_name":"Montserrat"}, {"country_code":"MT","country_name":"Malta"}, {"country_code":"MU","country_name":"Mauritius"}, {"country_code":"MV","country_name":"Maldives"}, {"country_code":"MW","country_name":"Malawi"}, {"country_code":"MX","country_name":"Mexico"}, {"country_code":"MY","country_name":"Malaysia"}, {"country_code":"MZ","country_name":"Mozambique"}, {"country_code":"NA","country_name":"Namibia"}, {"country_code":"NC","country_name":"New Caledonia"}, {"country_code":"NE","country_name":"Niger"}, {"country_code":"NF","country_name":"Norfolk Island"}, {"country_code":"NG","country_name":"Nigeria"}, {"country_code":"NI","country_name":"Nicaragua"}, {"country_code":"NL","country_name":"Netherlands"}, {"country_code":"NO","country_name":"Norway"}, {"country_code":"NP","country_name":"Nepal"}, {"country_code":"NR","country_name":"Nauru"}, {"country_code":"NU","country_name":"Niue"}, {"country_code":"NZ","country_name":"New Zealand"}, {"country_code":"OM","country_name":"Oman"}, {"country_code":"PA","country_name":"Panama"}, {"country_code":"PE","country_name":"Peru"}, {"country_code":"PF","country_name":"French Polynesia"}, {"country_code":"PG","country_name":"Papua New Guinea"}, {"country_code":"PH","country_name":"Philippines"}, {"country_code":"PK","country_name":"Pakistan"}, {"country_code":"PL","country_name":"Poland"}, {"country_code":"PM","country_name":"Saint Pierre and Miquelon"}, {"country_code":"PN","country_name":"Pitcairn Islands"}, {"country_code":"PR","country_name":"Puerto Rico"}, {"country_code":"PS","country_name":"Palestine"}, {"country_code":"PT","country_name":"Portugal"}, {"country_code":"PW","country_name":"Palau"}, {"country_code":"PY","country_name":"Paraguay"}, {"country_code":"QA","country_name":"Qatar"}, {"country_code":"RE","country_name":"R\u00e9union"}, {"country_code":"RO","country_name":"Romania"}, {"country_code":"RS","country_name":"Serbia"}, {"country_code":"RU","country_name":"Russia"}, {"country_code":"RW","country_name":"Rwanda"}, {"country_code":"SA","country_name":"Saudi Arabia"}, {"country_code":"SB","country_name":"Solomon Islands"}, {"country_code":"SC","country_name":"Seychelles"}, {"country_code":"SD","country_name":"Sudan"}, {"country_code":"SE","country_name":"Sweden"}, {"country_code":"SG","country_name":"Singapore"}, {"country_code":"SH","country_name":"Saint Helena"}, {"country_code":"SI","country_name":"Slovenia"}, {"country_code":"SJ","country_name":"Svalbard and Jan Mayen"}, {"country_code":"SK","country_name":"Slovakia"}, {"country_code":"SL","country_name":"Sierra Leone"}, {"country_code":"SM","country_name":"San Marino"}, {"country_code":"SN","country_name":"Senegal"}, {"country_code":"SO","country_name":"Somalia"}, {"country_code":"SR","country_name":"Suriname"}, {"country_code":"SS","country_name":"South Sudan"}, {"country_code":"ST","country_name":"S\u00e3o Tom\u00e9 and Pr\u00edncipe"}, {"country_code":"SV","country_name":"El Salvador"}, {"country_code":"SX","country_name":"Sint Maarten"}, {"country_code":"SY","country_name":"Syria"}, {"country_code":"SZ","country_name":"Swaziland"}, {"country_code":"TC","country_name":"Turks and Caicos Islands"}, {"country_code":"TD","country_name":"Chad"}, {"country_code":"TF","country_name":"French Southern Territories"}, {"country_code":"TG","country_name":"Togo"}, {"country_code":"TH","country_name":"Thailand"}, {"country_code":"TJ","country_name":"Tajikistan"}, {"country_code":"TK","country_name":"Tokelau"}, {"country_code":"TL","country_name":"East Timor"}, {"country_code":"TM","country_name":"Turkmenistan"}, {"country_code":"TN","country_name":"Tunisia"}, {"country_code":"TO","country_name":"Tonga"}, {"country_code":"TR","country_name":"Turkey"}, {"country_code":"TT","country_name":"Trinidad and Tobago"}, {"country_code":"TV","country_name":"Tuvalu"}, {"country_code":"TW","country_name":"Taiwan"}, {"country_code":"TZ","country_name":"Tanzania"}, {"country_code":"UA","country_name":"Ukraine"}, {"country_code":"UG","country_name":"Uganda"}, {"country_code":"UM","country_name":"U.S. Minor Outlying Islands"}, {"country_code":"US","country_name":"United States"}, {"country_code":"UY","country_name":"Uruguay"}, {"country_code":"UZ","country_name":"Uzbekistan"}, {"country_code":"VA","country_name":"Vatican City"}, {"country_code":"VC","country_name":"Saint Vincent and the Grenadines"}, {"country_code":"VE","country_name":"Venezuela"}, {"country_code":"VG","country_name":"British Virgin Islands"}, {"country_code":"VI","country_name":"U.S. Virgin Islands"}, {"country_code":"VN","country_name":"Vietnam"}, {"country_code":"VU","country_name":"Vanuatu"}, {"country_code":"WF","country_name":"Wallis and Futuna"}, {"country_code":"WS","country_name":"Samoa"}, {"country_code":"XK","country_name":"Kosovo"}, {"country_code":"YE","country_name":"Yemen"}, {"country_code":"YT","country_name":"Mayotte"}, {"country_code":"ZA","country_name":"South Africa"}, {"country_code":"ZM","country_name":"Zambia"}, {"country_code":"ZW","country_name":"Zimbabwe"}]
如果您使用的是 RoboMongo，那么如果您想在 MongoDB 集合中使用 RoboMongo 插入多个文档，那么您需要删除两条记录之间的逗号，如果您使用的是 RoboMongo，请使用以下内容。
{"country_code":"AD","country_name":"Andorra"} {"country_code":"AE","country_name":"United Arab Emirates"} {"country_code":"AF","country_name":"Afghanistan"} {"country_code":"AG","country_name":"Antigua and Barbuda"} {"country_code":"AI","country_name":"Anguilla"} {"country_code":"AL","country_name":"Albania"} {"country_code":"AM","country_name":"Armenia"} {"country_code":"AO","country_name":"Angola"} {"country_code":"AQ","country_name":"Antarctica"} {"country_code":"AR","country_name":"Argentina"} {"country_code":"AS","country_name":"American Samoa"} {"country_code":"AT","country_name":"Austria"} {"country_code":"AU","country_name":"Australia"} {"country_code":"AW","country_name":"Aruba"} {"country_code":"AX","country_name":"\u00c5land"} {"country_code":"AZ","country_name":"Azerbaijan"} {"country_code":"BA","country_name":"Bosnia and Herzegovina"} {"country_code":"BB","country_name":"Barbados"} {"country_code":"BD","country_name":"Bangladesh"} {"country_code":"BE","country_name":"Belgium"} {"country_code":"BF","country_name":"Burkina Faso"} {"country_code":"BG","country_name":"Bulgaria"} {"country_code":"BH","country_name":"Bahrain"} {"country_code":"BI","country_name":"Burundi"} {"country_code":"BJ","country_name":"Benin"} {"country_code":"BL","country_name":"Saint Barth\u00e9lemy"} {"country_code":"BM","country_name":"Bermuda"} {"country_code":"BN","country_name":"Brunei"} {"country_code":"BO","country_name":"Bolivia"} {"country_code":"BQ","country_name":"Bonaire"} {"country_code":"BR","country_name":"Brazil"} {"country_code":"BS","country_name":"Bahamas"} {"country_code":"BT","country_name":"Bhutan"} {"country_code":"BV","country_name":"Bouvet Island"} {"country_code":"BW","country_name":"Botswana"} {"country_code":"BY","country_name":"Belarus"} {"country_code":"BZ","country_name":"Belize"} {"country_code":"CA","country_name":"Canada"} {"country_code":"CC","country_name":"Cocos [Keeling] Islands"} {"country_code":"CD","country_name":"Democratic Republic of the Congo"} {"country_code":"CF","country_name":"Central African Republic"} {"country_code":"CG","country_name":"Republic of the Congo"} {"country_code":"CH","country_name":"Switzerland"} {"country_code":"CI","country_name":"Ivory Coast"} {"country_code":"CK","country_name":"Cook Islands"} {"country_code":"CL","country_name":"Chile"} {"country_code":"CM","country_name":"Cameroon"} {"country_code":"CN","country_name":"China"} {"country_code":"CO","country_name":"Colombia"} {"country_code":"CR","country_name":"Costa Rica"} {"country_code":"CU","country_name":"Cuba"} {"country_code":"CV","country_name":"Cape Verde"} {"country_code":"CW","country_name":"Curacao"} {"country_code":"CX","country_name":"Christmas Island"} {"country_code":"CY","country_name":"Cyprus"} {"country_code":"CZ","country_name":"Czech Republic"} {"country_code":"DE","country_name":"Germany"} {"country_code":"DJ","country_name":"Djibouti"} {"country_code":"DK","country_name":"Denmark"} {"country_code":"DM","country_name":"Dominica"} {"country_code":"DO","country_name":"Dominican Republic"} {"country_code":"DZ","country_name":"Algeria"} {"country_code":"EC","country_name":"Ecuador"} {"country_code":"EE","country_name":"Estonia"} {"country_code":"EG","country_name":"Egypt"} {"country_code":"EH","country_name":"Western Sahara"} {"country_code":"ER","country_name":"Eritrea"} {"country_code":"ES","country_name":"Spain"} {"country_code":"ET","country_name":"Ethiopia"} {"country_code":"FI","country_name":"Finland"} {"country_code":"FJ","country_name":"Fiji"} {"country_code":"FK","country_name":"Falkland Islands"} {"country_code":"FM","country_name":"Micronesia"} {"country_code":"FO","country_name":"Faroe Islands"} {"country_code":"FR","country_name":"France"} {"country_code":"GA","country_name":"Gabon"} {"country_code":"GB","country_name":"United Kingdom"} {"country_code":"GD","country_name":"Grenada"} {"country_code":"GE","country_name":"Georgia"} {"country_code":"GF","country_name":"French Guiana"} {"country_code":"GG","country_name":"Guernsey"} {"country_code":"GH","country_name":"Ghana"} {"country_code":"GI","country_name":"Gibraltar"} {"country_code":"GL","country_name":"Greenland"} {"country_code":"GM","country_name":"Gambia"} {"country_code":"GN","country_name":"Guinea"} {"country_code":"GP","country_name":"Guadeloupe"} {"country_code":"GQ","country_name":"Equatorial Guinea"} {"country_code":"GR","country_name":"Greece"} {"country_code":"GS","country_name":"South Georgia and the South Sandwich Islands"} {"country_code":"GT","country_name":"Guatemala"} {"country_code":"GU","country_name":"Guam"} {"country_code":"GW","country_name":"Guinea-Bissau"} {"country_code":"GY","country_name":"Guyana"} {"country_code":"HK","country_name":"Hong Kong"} {"country_code":"HM","country_name":"Heard Island and McDonald Islands"} {"country_code":"HN","country_name":"Honduras"} {"country_code":"HR","country_name":"Croatia"} {"country_code":"HT","country_name":"Haiti"} {"country_code":"HU","country_name":"Hungary"} {"country_code":"ID","country_name":"Indonesia"} {"country_code":"IE","country_name":"Ireland"} {"country_code":"IL","country_name":"Israel"} {"country_code":"IM","country_name":"Isle of Man"} {"country_code":"IN","country_name":"India"} {"country_code":"IO","country_name":"British Indian Ocean Territory"} {"country_code":"IQ","country_name":"Iraq"} {"country_code":"IR","country_name":"Iran"} {"country_code":"IS","country_name":"Iceland"} {"country_code":"IT","country_name":"Italy"} {"country_code":"JE","country_name":"Jersey"} {"country_code":"JM","country_name":"Jamaica"} {"country_code":"JO","country_name":"Jordan"} {"country_code":"JP","country_name":"Japan"} {"country_code":"KE","country_name":"Kenya"} {"country_code":"KG","country_name":"Kyrgyzstan"} {"country_code":"KH","country_name":"Cambodia"} {"country_code":"KI","country_name":"Kiribati"} {"country_code":"KM","country_name":"Comoros"} {"country_code":"KN","country_name":"Saint Kitts and Nevis"} {"country_code":"KP","country_name":"North Korea"} {"country_code":"KR","country_name":"South Korea"} {"country_code":"KW","country_name":"Kuwait"} {"country_code":"KY","country_name":"Cayman Islands"} {"country_code":"KZ","country_name":"Kazakhstan"} {"country_code":"LA","country_name":"Laos"} {"country_code":"LB","country_name":"Lebanon"} {"country_code":"LC","country_name":"Saint Lucia"} {"country_code":"LI","country_name":"Liechtenstein"} {"country_code":"LK","country_name":"Sri Lanka"} {"country_code":"LR","country_name":"Liberia"} {"country_code":"LS","country_name":"Lesotho"} {"country_code":"LT","country_name":"Lithuania"} {"country_code":"LU","country_name":"Luxembourg"} {"country_code":"LV","country_name":"Latvia"} {"country_code":"LY","country_name":"Libya"} {"country_code":"MA","country_name":"Morocco"} {"country_code":"MC","country_name":"Monaco"} {"country_code":"MD","country_name":"Moldova"} {"country_code":"ME","country_name":"Montenegro"} {"country_code":"MF","country_name":"Saint Martin"} {"country_code":"MG","country_name":"Madagascar"} {"country_code":"MH","country_name":"Marshall Islands"} {"country_code":"MK","country_name":"Macedonia"} {"country_code":"ML","country_name":"Mali"} {"country_code":"MM","country_name":"Myanmar [Burma]"} {"country_code":"MN","country_name":"Mongolia"} {"country_code":"MO","country_name":"Macao"} {"country_code":"MP","country_name":"Northern Mariana Islands"} {"country_code":"MQ","country_name":"Martinique"} {"country_code":"MR","country_name":"Mauritania"} {"country_code":"MS","country_name":"Montserrat"} {"country_code":"MT","country_name":"Malta"} {"country_code":"MU","country_name":"Mauritius"} {"country_code":"MV","country_name":"Maldives"} {"country_code":"MW","country_name":"Malawi"} {"country_code":"MX","country_name":"Mexico"} {"country_code":"MY","country_name":"Malaysia"} {"country_code":"MZ","country_name":"Mozambique"} {"country_code":"NA","country_name":"Namibia"} {"country_code":"NC","country_name":"New Caledonia"} {"country_code":"NE","country_name":"Niger"} {"country_code":"NF","country_name":"Norfolk Island"} {"country_code":"NG","country_name":"Nigeria"} {"country_code":"NI","country_name":"Nicaragua"} {"country_code":"NL","country_name":"Netherlands"} {"country_code":"NO","country_name":"Norway"} {"country_code":"NP","country_name":"Nepal"} {"country_code":"NR","country_name":"Nauru"} {"country_code":"NU","country_name":"Niue"} {"country_code":"NZ","country_name":"New Zealand"} {"country_code":"OM","country_name":"Oman"} {"country_code":"PA","country_name":"Panama"} {"country_code":"PE","country_name":"Peru"} {"country_code":"PF","country_name":"French Polynesia"} {"country_code":"PG","country_name":"Papua New Guinea"} {"country_code":"PH","country_name":"Philippines"} {"country_code":"PK","country_name":"Pakistan"} {"country_code":"PL","country_name":"Poland"} {"country_code":"PM","country_name":"Saint Pierre and Miquelon"} {"country_code":"PN","country_name":"Pitcairn Islands"} {"country_code":"PR","country_name":"Puerto Rico"} {"country_code":"PS","country_name":"Palestine"} {"country_code":"PT","country_name":"Portugal"} {"country_code":"PW","country_name":"Palau"} {"country_code":"PY","country_name":"Paraguay"} {"country_code":"QA","country_name":"Qatar"} {"country_code":"RE","country_name":"R\u00e9union"} {"country_code":"RO","country_name":"Romania"} {"country_code":"RS","country_name":"Serbia"} {"country_code":"RU","country_name":"Russia"} {"country_code":"RW","country_name":"Rwanda"} {"country_code":"SA","country_name":"Saudi Arabia"} {"country_code":"SB","country_name":"Solomon Islands"} {"country_code":"SC","country_name":"Seychelles"} {"country_code":"SD","country_name":"Sudan"} {"country_code":"SE","country_name":"Sweden"} {"country_code":"SG","country_name":"Singapore"} {"country_code":"SH","country_name":"Saint Helena"} {"country_code":"SI","country_name":"Slovenia"} {"country_code":"SJ","country_name":"Svalbard and Jan Mayen"} {"country_code":"SK","country_name":"Slovakia"} {"country_code":"SL","country_name":"Sierra Leone"} {"country_code":"SM","country_name":"San Marino"} {"country_code":"SN","country_name":"Senegal"} {"country_code":"SO","country_name":"Somalia"} {"country_code":"SR","country_name":"Suriname"} {"country_code":"SS","country_name":"South Sudan"} {"country_code":"ST","country_name":"S\u00e3o Tom\u00e9 and Pr\u00edncipe"} {"country_code":"SV","country_name":"El Salvador"} {"country_code":"SX","country_name":"Sint Maarten"} {"country_code":"SY","country_name":"Syria"} {"country_code":"SZ","country_name":"Swaziland"} {"country_code":"TC","country_name":"Turks and Caicos Islands"} {"country_code":"TD","country_name":"Chad"} {"country_code":"TF","country_name":"French Southern Territories"} {"country_code":"TG","country_name":"Togo"} {"country_code":"TH","country_name":"Thailand"} {"country_code":"TJ","country_name":"Tajikistan"} {"country_code":"TK","country_name":"Tokelau"} {"country_code":"TL","country_name":"East Timor"} {"country_code":"TM","country_name":"Turkmenistan"} {"country_code":"TN","country_name":"Tunisia"} {"country_code":"TO","country_name":"Tonga"} {"country_code":"TR","country_name":"Turkey"} {"country_code":"TT","country_name":"Trinidad and Tobago"} {"country_code":"TV","country_name":"Tuvalu"} {"country_code":"TW","country_name":"Taiwan"} {"country_code":"TZ","country_name":"Tanzania"} {"country_code":"UA","country_name":"Ukraine"} {"country_code":"UG","country_name":"Uganda"} {"country_code":"UM","country_name":"U.S. Minor Outlying Islands"} {"country_code":"US","country_name":"United States"} {"country_code":"UY","country_name":"Uruguay"} {"country_code":"UZ","country_name":"Uzbekistan"} {"country_code":"VA","country_name":"Vatican City"} {"country_code":"VC","country_name":"Saint Vincent and the Grenadines"} {"country_code":"VE","country_name":"Venezuela"} {"country_code":"VG","country_name":"British Virgin Islands"} {"country_code":"VI","country_name":"U.S. Virgin Islands"} {"country_code":"VN","country_name":"Vietnam"} {"country_code":"VU","country_name":"Vanuatu"} {"country_code":"WF","country_name":"Wallis and Futuna"} {"country_code":"WS","country_name":"Samoa"} {"country_code":"XK","country_name":"Kosovo"} {"country_code":"YE","country_name":"Yemen"} {"country_code":"YT","country_name":"Mayotte"} {"country_code":"ZA","country_name":"South Africa"} {"country_code":"ZM","country_name":"Zambia"} {"country_code":"ZW","country_name":"Zimbabwe"}
来自http://GeoNames.org的源数据，这个 python 脚本可以让你在 mongodb 中插入地理数据并在几秒钟内更新。 https://github.com/Albert-Gao/world-cities-mongodb
这是另一个提供大约 138,000 个城市的数据的存储库， https://github.com/nabilashraf/all-the-cities-mongodb
如果您可以访问，我会推荐 googlePlaces API，它非常易于使用，然后您可以将地理位置数据保存在数据库中。
这比必须保留（非常）长的世界城市和国家列表并且每次都必须加入它们要好。
甚至没有人开始谈论本地化和语言......
我建议使用提供自动完成服务的 Facebook API：
http://developers.facebook.com/docs/reference/ads-api/get-autocomplete-data/
如果您真的需要，然后在 Mongo 中缓存数据（具有 JSON 结果）。
我建议您查看这个 GitHub 存储库：
https://github.com/turalus/openDB
这是针对 MySQL 的，但我可以向您保证，有很多方法可以轻松地将 MySQL 数据库转换为 MongoDB 支持的格式 (JSON)