Question

我正在尝试使用google geocode api从给定的位置字符串中提取lat / lng坐标。但是，返回的JSON结果不一致，我不确定原因：

示例1

结果

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "Mit Nagy",
               "short_name" : "Mit Nagy",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Mit Nagy",
               "short_name" : "Mit Nagy",
               "types" : [ "administrative_area_level_3", "political" ]
            },
            {
               "long_name" : "Mit Ghamr",
               "short_name" : "Mit Ghamr",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Daqahlia",
               "short_name" : "Daqahlia",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "Egypt",
               "short_name" : "EG",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "Mit Nagy, Mit Ghamr, Daqahlia, Egypt",
         "geometry" : {
            "location" : {
               "lat" : 30.6705522,
               "lng" : 31.2912754
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 30.6801489,
                  "lng" : 31.3072828
               },
                "southwest" : {
                  "lat" : 30.6609546,
                  "lng" : 31.275268
               }
            }
         },
         "partial_match" : true,
         "types" : [ "locality", "political" ]
      }
   ],
   "status" : "OK" 
}

请注意，获取该位置的层次结构为response->results[0]->geometry->location

示例2

The Api Call

结果

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "Markaz Itay Al Baroud",
               "short_name" : "Markaz Itay Al Baroud",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Beheira",
               "short_name" : "Beheira",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "Egypt",
               "short_name" : "EG",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "Markaz Itay Al Baroud, Beheira, Egypt",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 30.9757371,
                  "lng" : 30.7938058
               },
               "southwest" : {
                  "lat" : 30.7921464,
                  "lng" : 30.5296768
               }
            },
            "location" : {
               "lat" : 30.8891275,
               "lng" : 30.6660044
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 30.9757371,
                  "lng" : 30.7938058
               },
               "southwest" : {
                  "lat" : 30.7921464,
                  "lng" : 30.5296768
               }
            }
         },
         "partial_match" : true,
         "types" : [ "administrative_area_level_2", "political" ]
      }
   ],
   "status" : "OK"
}

在这种情况下，位置不再位于 geometry 键下：

response->results[0]->location

API documentation中的示例显示该位置始终位于几何键下，那么为什么它会将其返回一级呢？

Answer 1

对于您为什么看到这些不一致的问题没有答案，但请考虑HERE Geocoder以获得一致的结果。

API文档位于developer.here.com/geocoder 每日免费限额为2,500笔交易。

请参阅以下位置的两个示例查询：

Mit Nagy

https://geocoder.cit.api.here.com/6.2/geocode.json?searchtext=mit nagy&languages=en&app_id=DemoAppId01082013GAL&app_code=AJKnXv84fjrb0KIHawS0Tg&gen=5&jsonAttributes=1

Markaz Itay Al Baroud

https://geocoder.cit.api.here.com/6.2/geocode.json?searchtext=Markaz Itay Al Baroud&languages=en&app_id=DemoAppId01082013GAL&app_code=AJKnXv84fjrb0KIHawS0Tg&gen=5&jsonAttributes=1

完全披露：我是HERE Geocoder的产品经理。

为什么google geocode api会返回不一致的json结果？

1 个答案: