不同状态的地理编码 returns JSON 没有界限

Question

当我从 http://maps.googleapis.com/maps/api/geocode/json?address=Alabama 得到 JSON 时，它返回我的边界，如你所见：

    {
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "Alabama",
               "short_name" : "AL",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "United States",
               "short_name" : "US",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "Alabama, USA",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 35.008028,
                  "lng" : -84.888246
               },
               "southwest" : {
                  "lat" : 30.144425,
                  "lng" : -88.4732269
               }
            },
            "location" : {
               "lat" : 32.3182314,
               "lng" : -86.902298
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 35.008028,
                  "lng" : -84.888246
               },
               "southwest" : {
                  "lat" : 30.144425,
                  "lng" : -88.4732269
               }
            }
         },
         "place_id" : "ChIJdf5LHzR_hogR6czIUzU0VV4",
         "types" : [ "administrative_area_level_1", "political" ]
      }
   ],
   "status" : "OK"
}

但是当我输入阿拉斯加而不是阿拉巴马时 http://maps.googleapis.com/maps/api/geocode/json?address=Alaska

    {
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "700",
               "short_name" : "700",
               "types" : [ "street_number" ]
            },
            {
               "long_name" : "East 46th Avenue",
               "short_name" : "E 46th Ave",
               "types" : [ "route" ]
            },
            {
               "long_name" : "Midtown",
               "short_name" : "Midtown",
               "types" : [ "neighborhood", "political" ]
            },
            {
               "long_name" : "Anchorage",
               "short_name" : "Anchorage",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Anchorage",
               "short_name" : "Anchorage",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Alaska",
               "short_name" : "AK",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "United States",
               "short_name" : "US",
               "types" : [ "country", "political" ]
            },
            {
               "long_name" : "99503",
               "short_name" : "99503",
               "types" : [ "postal_code" ]
            },
            {
               "long_name" : "7402",
               "short_name" : "7402",
               "types" : [ "postal_code_suffix" ]
            }
         ],
         "formatted_address" : "700 E 46th Ave, Anchorage, AK 99503, USA",
         "geometry" : {
            "location" : {
               "lat" : 61.1789309,
               "lng" : -149.870464
            },
            "location_type" : "ROOFTOP",
            "viewport" : {
               "northeast" : {
                  "lat" : 61.1802798802915,
                  "lng" : -149.8691150197085
               },
               "southwest" : {
                  "lat" : 61.17758191970849,
                  "lng" : -149.8718129802915
               }
            }
         },
         "place_id" : "ChIJ1QZWYr2XyFYR1-572SNQDyI",
         "types" : [ "car_wash", "establishment", "finance", "point_of_interest" ]
      }
   ],
   "status" : "OK"
}

JSON 中没有 "bounds"，为什么，我需要边界以便我可以搜索美国各州的特定位置。有什么区别，这发生在其他一些州。我尝试使用视口而不是边界，它再次适用于阿拉巴马州，但在阿拉斯加，它指向安克雷奇的中心。

Answer 1

实际上，有一个解决方法。您需要在请求中添加 'components' 参数和 select 'country' 进行过滤。

这是一个示例 link http://maps.googleapis.com/maps/api/geocode/json?address=Alaska&components=country:US

注意：可选择返回边界

bounds (optionally returned) stores the bounding box which can fully contain the returned result.

这是documentation。

希望对您的问题有所帮助。

不同状态的地理编码 returns JSON 没有界限

Geocode for different state returns JSON without bounds

json

google-maps

google-maps-api-3

google-geocoder