从谷歌地图api中检索坐标

Question

我有一个地址列表，我现在想检索它们的经度和纬度。我想通过java使用谷歌地图api。我该如何为一个地址检索一组单词呢。（因为我可以很容易地实现多个）

Answer 1

您也可以像这样使用Google Geocoder Java API GeoGoogle：

// Initialize a new GeoAddressStandardizer-class with your API-Key
GeoAddressStandardizer st = new GeoAddressStandardizer(apikey);
// Get a list of possible matching addresses
List<GeoAddress> addresses = st.standardizeToGeoAddresses(address);
// Get the first address (like you posted above)
GeoAddress address = addresses.get(0);
// Get the coordinates for the address
GeoCoordinate coords = address.getCoordinate();
// Longitude
double longitude = coords.getLongitude();
// Latitude
double latitude = coords.getLatitude();

Answer 2

您可以使用这个Google API

Answer 3

这是我最后的做法

public static String getCordinates(String address,String county) throws IOException, ParserConfigurationException, SAXException{
    String thisLine;
    address = address.replace(",", "+");
    address = address.replace(" ", "+");
    county = county.replace(" ", "");
    String fullAddress = address+"+"+county;
    System.out.println(fullAddress);
    URL url = new URL("http://maps.google.com/maps/geo?q="+fullAddress+"&output=xml&key=ABQIAAAANGTAqDyDam_07aWkklK2NBSD41w" +
            "X8VhCBpuiDVjGbFNuXE31lhQB8Gkwy-wmYbmaHIbJtfnlR9I_9A");
    BufferedReader theHTML = new BufferedReader(new InputStreamReader(url.openStream()));
    FileWriter fstream = new FileWriter("url.xml");
    BufferedWriter out = new BufferedWriter(fstream);
    while ((thisLine = theHTML.readLine()) != null)
        out.write(thisLine);
    out.close();
    File file = new File("url.xml");
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.parse(file);
    doc.getDocumentElement().normalize();
    NodeList nl = doc.getElementsByTagName("code");
    Element n = (Element)nl.item(0);
    String st = n.getFirstChild().getNodeValue();
    if (st.equals("200"))
    {
        NodeList n2 = doc.getElementsByTagName("coordinates");
        Element nn = (Element)n2.item(0);
        String st1 = nn.getFirstChild().getNodeValue();

        return st1;
    }
    else
    {
        return null;
    }

}

Answer 4

使用带有restAssured的API是一种简单的方法：

 public static String[] getCoordinates(String address, String county) throws IOException, ParserConfigurationException, SAXException {
    address = address.replace(",", "+");
    address = address.replace(" ", "+");
    county = county.replace(" ", "");
    String fullAddress = address+"+"+county;
    System.out.println(fullAddress);
    URL url = new URL("http://maps.google.com/maps/api/geocode/json?address="+fullAddress+"&sensor=false");
    Response res = given().
            when().
            get(url);
    JsonPath jp = new JsonPath(res.asString());
    String lat = jp.get("results.geometry.location.lat").toString();
    String lng = jp.get("results.geometry.location.lng").toString();
    String[] location = new String[2];
    location[0] = lat;
    location[1] = lng;
    return location;
}