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开始准备用百度API，要什么秘钥，太麻烦了，找了个GOOGLE的
如下网址内容可参考
http://www.cnblogs.com/liuhaorain/archive/2012/01/31/2334018.html
这里有PC和PDA平台2中：
PC下转换：
//webclient客户端对象
WebClient client = new WebClient();
string url = "http://maps.google.com/maps/api/geocode/xml?latlng=" + latitude + "," + longitude + "&language=zh-CN&sensor=false";//请求地址
client.Encoding = Encoding.UTF8;//编码格式
string responseTest = client.DownloadString(url);
//下载xml响应数据
string address = "";//返回的地址
XmlDocument doc = new XmlDocument();
//创建XML文档对象
if (!string.IsNullOrEmpty(responseTest))
{
doc.LoadXml(responseTest);//加载xml字符串
//查询状态信息
string xpath = @"GeocodeResponse/status";
XmlNode node = doc.SelectSingleNode(xpath);
string status = node.InnerText.ToString();
if (status == "OK") {
//查询详细地址信息
xpath = @"GeocodeResponse/result/formatted_address";
node = doc.SelectSingleNode(xpath);
address = node.InnerText.ToString();
//查询地区信息
XmlNodeList nodeListAll = doc.SelectNodes("GeocodeResponse/result");
XmlNode idt = nodeListAll[0];
XmlNodeList idts = idt.SelectNodes("address_component[type='sublocality']");
//address_component[type='sublocality']表示筛选type='sublocality'的所有相关子节点；
XmlNode idtst = idts[0];
string area = idtst.SelectSingleNode("short_name").InnerText;
address = address + "," + area;
}
}
PDA下：
void Getarea( string longitude,string latitude)
{
webclient客户端对象
//WebClient client = new WebClient();
//string url = "http://maps.google.com/maps/api/geocode/xml?latlng=" + latitude + "," + longitude + "&language=zh-CN&sensor=false";//请求地址
//client.Encoding = Encoding.UTF8;//编码格式
string url = "http://maps.google.com/maps/api/geocode/xml?latlng=" + latitude + "," + longitude + "&language=zh-CN&sensor=false";//请求地址
//string responseTest = client.DownloadString(url);
string responseTest = GetData(url);
//下载xml响应数据
string address = "";//返回的地址
XmlDocument doc = new XmlDocument();
//创建XML文档对象
if (!string.IsNullOrEmpty(responseTest))
{
doc.LoadXml(responseTest);//加载xml字符串
//查询状态信息
string xpath = @"GeocodeResponse/status";
XmlNode node = doc.SelectSingleNode(xpath);
string status = node.InnerText.ToString();
if (status == "OK")
{
//查询详细地址信息
xpath = @"GeocodeResponse/result/formatted_address";
node = doc.SelectSingleNode(xpath);
address = node.InnerText.ToString();
//查询地区信息
XmlNodeList nodeListAll = doc.SelectNodes("GeocodeResponse/result");
XmlNode idt = nodeListAll[0];
XmlNodeList idts = idt.SelectNodes("address_component[type='sublocality']");
//address_component[type='sublocality']表示筛选type='sublocality'的所有相关子节点；
XmlNode idtst = idts[0];
string area = idtst.SelectSingleNode("short_name").InnerText;
label4.Text = address + "," + area;
//address = address + "," + area;
Addtxt(address + "," + area);
}
}
}
string GetData(string url)
{
try
{
HttpWebRequest myRequst = (HttpWebRequest)WebRequest.Create(url);
myRequst.Method = "GET";
myRequst.ContentType = "text/html;charset=UTF-8";
HttpWebResponse response = (HttpWebResponse)myRequst.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("UTF-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
return retString;
}
catch (System.Exception ex)
{
return string.Empty;
}
}
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转播
