得到一個地方的經度和緯度針對其郵政編碼

Question

我用下面的代碼使用下面的一段代碼來獲取特定的地方在地圖上的位置

NSString * urlString = [[NSString alloc] initWithFormat:@"http://maps.google.com/maps/geo?key=%@&output=xml&q=%@",GoogleMapsAPIKey,[placeName stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 

結果：

<?xml version="1.0" encoding="UTF-8" ?> 
<kml xmlns="http://earth.google.com/kml/2.0"><Response> 
    <name>postdam</name> 
    <Status> 
    <code>200</code> 
    <request>geocode</request> 
    </Status> 
    <Placemark id="p1"> 
    <address>Potsdam, Germany</address> 
    <AddressDetails Accuracy="4" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><Country><CountryNameCode>DE</CountryNameCode><CountryName>Deutschland</CountryName><AdministrativeArea><AdministrativeAreaName>Brandenburg</AdministrativeAreaName><SubAdministrativeArea><SubAdministrativeAreaName>Potsdam</SubAdministrativeAreaName><Locality><LocalityName>Potsdam</LocalityName></Locality></SubAdministrativeArea></AdministrativeArea></Country></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="52.4513968" south="52.3424614" east="13.1866602" west="12.9305414" /> 
    </ExtendedData> 
    <Point><coordinates>13.0586008,52.3969627,0</coordinates></Point> 
    </Placemark> 
</Response></kml> 

但現在我想獲取郵政編碼信息。如何使用maps.google.com做到這一點？

Answer 1

您不再需要使用谷歌地圖API密鑰訪問此API。

下面是我昨天寫一個PHP函數正是這種實現JSON

function getCoordinatesFromAddress($address, $lat, $long, $region="US") { 
     $json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address&sensor=false&region=$region"); 
     $json = json_decode($json); 

     $lat = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lat'}; 
     $long = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lng'}; 
} 

Answer 2

因爲谷歌地圖是美國爲中心的，只是在郵政編碼直接作用（至少暫時）把

http://maps.google.com/maps/geo?output=xml&q=90210

<AdministrativeArea> 
    <AdministrativeAreaName>CA</AdministrativeAreaName> 
    <SubAdministrativeArea> 
     <SubAdministrativeAreaName>Los Angeles</SubAdministrativeAreaName> 
     <Locality> 
      <LocalityName>Beverly Hills</LocalityName> 
      <PostalCode> 
       <PostalCodeNumber>90210</PostalCodeNumber> 
      </PostalCode> 
     </Locality> 
    </SubAdministrativeArea> 
</AdministrativeArea>