百度、谷歌根据地理位置获取经纬度

/// <summary>
/// 根据地理位置获取经纬度
/// </summary>
/// <param name="address"></param>
/// <returns></returns>
public static string GetBaiduLocation(string address)
{
string latlng = "";
try
{
String url = "http://api.map.baidu.com/geocoder/v2/?address=" + address + "&output=xml&ak=SyGHfOU5utqzhgtng68LZ0CGOMdIsI5O";
{

WebRequest request = WebRequest.Create(url);
request.Method = "POST";
XmlDocument xmlDoc = new XmlDocument();
string sendData = xmlDoc.InnerXml;
byte[] byteArray = Encoding.Default.GetBytes(sendData);

Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();

WebResponse response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.GetEncoding("utf-8"));
string responseXml = reader.ReadToEnd();

XmlDocument xml = new XmlDocument();
xml.LoadXml(responseXml);
string status = xml.DocumentElement.SelectSingleNode("status").InnerText;
if (status == "0")
{

double lng = double.Parse(xml.DocumentElement.GetElementsByTagName("lng")[0].InnerText.ToString());
double lat = double.Parse(xml.DocumentElement.GetElementsByTagName("lat")[0].InnerText.ToString());
return latlng = lng + "," + lat;
}
else
{
return "0,0";
}
}
}
catch (System.Exception ex)
{
return "0,0";

}
}
/// <summary>
/// 根据地理位置获取经纬度
/// </summary>
/// <param name="address"></param>
/// <returns></returns>
public static string GetGoogleLocation(string address)
{
string latlng = "";
try
{
String url = "https://ditu.google.cn/maps/api/geocode/xml?address=" + address + "&key=AIzaSyA69pcp_xUEfUmKnWjlY6jCIAH2aqTNiX8&signed=true";
{

WebRequest request = WebRequest.Create(url);
request.Method = "POST";
XmlDocument xmlDoc = new XmlDocument();
string sendData = xmlDoc.InnerXml;
byte[] byteArray = Encoding.Default.GetBytes(sendData);

Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();

WebResponse response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.GetEncoding("utf-8"));
string responseXml = reader.ReadToEnd();

XmlDocument xml = new XmlDocument();
xml.LoadXml(responseXml);
string status = xml.DocumentElement.SelectSingleNode("status").InnerText;
if (status == "OK")
{

double lng = double.Parse(xml.DocumentElement.GetElementsByTagName("lng")[0].InnerText.ToString());
double lat = double.Parse(xml.DocumentElement.GetElementsByTagName("lat")[0].InnerText.ToString());
return latlng = lat + "," + lng;
}
else
{
return "0,0";
}
}
}
catch (System.Exception ex)
{
return "0,0";

}
}