在我的 asp.net 应用程序中，我使用 Geocode 来查找给定地址的纬度和经度，并将它们保存在数据库中。非常奇怪的是，它从过去 8 个月开始运行良好，但突然从 2 天开始，它为我们提供的每个地址返回零，即使我曾尝试使用它正在工作的旧地址，但现在它也返回零作为经度和纬度。
请让我知道如何解决此问题
这是我正在使用的代码，以前可以使用，我没有更改任何内容
public interface ISpatialCoordinate
{
decimal Latitude { get; set; }
decimal Longitude { get; set; }
}
/// <summary>
/// Coordiate structure. Holds Latitude and Longitude.
/// </summary>
public struct Coordinate : ISpatialCoordinate
{
private decimal _latitude;
private decimal _longitude;
public Coordinate(decimal latitude, decimal longitude)
{
_latitude = latitude;
_longitude = longitude;
}
#region ISpatialCoordinate Members
public decimal Latitude
{
get
{
return _latitude;
}
set
{
this._latitude = value;
}
}
public decimal Longitude
{
get
{
return _longitude;
}
set
{
this._longitude = value;
}
}
#endregion
}
public class Geocode
{
private const string _googleUri = "https://maps.google.com/maps/geo?q=";
private const string _outputType = "csv"; // Available options: csv, xml, kml, json
//
private const string _googleKey = ""; //here i am giving my key
/// <summary>
/// Returns a Uri of the Google code Geocoding Uri.
/// </summary>
/// <param name="address">The address to get the geocode for.</param>
/// <returns>A new Uri</returns>
private static Uri GetGeocodeUri(string address)
{
// string googleKey = ConfigurationManager.AppSettings["googleApiKey"].ToString();
address = HttpUtility.UrlEncode(address);
return new Uri(String.Format("{0}{1}&output={2}&key={3}", _googleUri, address, _outputType, _googleKey));
}
/// <summary>
/// Gets a Coordinate from a address.
/// </summary>
/// <param name="address">An address.
/// <remarks>
/// <example>
/// 3276 Westchester Ave, Bronx, NY 10461
///
/// or
///
/// New York, NY
///
/// or
///
/// 10461 (just a zipcode)
/// </example>
/// </remarks>
/// </param>
/// <returns>A spatial coordinate that contains the latitude and longitude of the address.</returns>
public static Coordinate GetCoordinates(string address)
{
WebClient client = new WebClient();
Uri uri = GetGeocodeUri(address);
/* The first number is the status code,
* the second is the accuracy,
* the third is the latitude,
* the fourth one is the longitude.
*/
string[] geocodeInfo = client.DownloadString(uri).Split(',');
return new Coordinate(Convert.ToDecimal(geocodeInfo[2]), Convert.ToDecimal(geocodeInfo[3]));
}
}