1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Xml;
6 using System.Net;
7
8 namespace Utility
9 {
10 public class GoogleMapHelper
11 {
12 public string GetAddress(string lat, string lng)
13 {
14 WebClient client = new WebClient();
15 string url = string.Format("http://maps.google.com/maps/api/geocode/xml?latlng={0},{1}&language=zh-CN&sensor=false", lat, lng);
16 client.Encoding = Encoding.UTF8;
17 try
18 {
19 string responseTest = client.DownloadString(url);
20 XmlDocument doc = new XmlDocument();
21
22 if (!string.IsNullOrEmpty(responseTest))
23 {
24 doc.LoadXml(responseTest);
25
26 string xpath = @"GeocodeResponse/status";
27 XmlNode node = doc.SelectSingleNode(xpath);
28 string status = node.InnerText.ToString();
29
30 if (status == "OK")
31 {
32 xpath = @"GeocodeResponse/result/formatted_address";
33 node = doc.SelectSingleNode(xpath);
34 string address = node.InnerText.ToString();
35 return address;
36 }
37 }
38 }
39 catch
40 {
41 }
42 return "";
43 }
44 }
45 }
