为什么Google GeoCoding有时只会返回邮政编码？

问题描述

如果我只通过我的GeoCoding电话呼叫某个城市并声明无法返回邮政编码。任何想法为什么？

这是我的电话：

  var test ='纽约，纽约'; 
 
 var geocoder = new google.maps.Geocoder（）; 
 geocoder.geocode（{'address'：test}，function（results，status）{
 
 if（status == google.maps.GeocoderStatus.OK）{
 
 var lat = results [0] .geometry.location.lat（）; 
 var lng = results [0] .geometry.location.lng（）; 
 
 var result = results [0] .address_components; 
 
 //console.log(result）; 
 
 var postal = null; 
 var city = null; 
 var state = null; 
 var country = null; 
 
 for（var i = 0; i< result.length; ++ i）{
 if（result [i] .types [0] ==postal_code）{
 postal = result [i] .long_name; 
} 
 if（result [i] .types [0] ==administrative_area_level_1 ）{
 state = result [i] .long_name; 
} 
 if（result [i] .types [0] ==locality）{
 city = result [ i] .long_name; 
} 
 if（result [i] .types [0] ==country）{
 country = result [i] .long_name; 
} 
} 
 
 alert（POSTAL：+ postal）; 
 alert（STATE：+ state）; 
 alert（CITY：+ city）; 
 alert（COUNTRY：+ country）; 
 
 
 
 
解决方案
如果你真的需要一个邮政编码，你可以将请求发回到反向地理编码器，这应该会给你一个代表该城市的邮政编码： 
 
 
  if（！postal）{
 geocoder.geocode（{'location'：results [0] .geometry.location}，function（results，status）{
 if（status == google .maps.GeocoderStatus.OK）{
 
 var result = results [0] .address_components; 
 
 for（var i = 0; i< result.length; ++ i ）{
 if（result [i] .types [0] ==postal_code）{
 postal = result [i] .long_name; 
} 
} 
 alert（POSTAL：+ postal）; 
} 
}）; 
} else alert（POSTAL：+ postal）; 
  
  
 
If I pass my GeoCoding call only a city and state it fails to return the postal code. Any idea why?
Here is my call:
var test = 'New York, NY';

var geocoder = new google.maps.Geocoder();         
geocoder.geocode({ 'address': test }, function (results, status) {          

if (status == google.maps.GeocoderStatus.OK) {  

    var lat = results[0].geometry.location.lat();
    var lng = results[0].geometry.location.lng();

    var result=results[0].address_components;

    //console.log(result);

    var postal = null;
    var city = null;
    var state = null;
    var country = null;

    for(var i=0;i<result.length;++i){
        if(result[i].types[0]=="postal_code"){
            postal = result[i].long_name;
        }
        if(result[i].types[0]=="administrative_area_level_1"){
            state = result[i].long_name;
        }
        if(result[i].types[0]=="locality"){
            city = result[i].long_name;
        }
        if(result[i].types[0]=="country"){
            country = result[i].long_name;
        }
    }

    alert("POSTAL: " + postal);
    alert("STATE: " + state);
    alert("CITY: " + city);
    alert("COUNTRY: " + country);

}
 解决方案 
If you really need a zip code, you can throw the request back to the reverse geocoder, that should give you a zip code somewhat representative of the city:
if (!postal) {
  geocoder.geocode({ 'location': results[0].geometry.location }, function (results, status) {          
    if (status == google.maps.GeocoderStatus.OK) {  

      var result=results[0].address_components;

      for(var i=0;i<result.length;++i){
       if(result[i].types[0]=="postal_code"){
          postal = result[i].long_name;
       }
      }
      alert("POSTAL: " + postal);
    }
});
} else alert("POSTAL: " + postal);
example
                        
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