C#通过高德地图API获取地址经纬度：实例与解析

        public string RandomGeographyPositionLibrary()
        {
                    string str = GetLocationByLngLat("上海市黄浦区", 10000);
                    JObject jo = (JObject)JsonConvert.DeserializeObject(str);
                    string location = (jo["geocodes"][0]["location"]).ToString();
                    return "经度："+(location.Split(',')[0])+" 纬度："+(location.Split(',')[1]);
        }
        public string GetLocationByLngLat(string address, int timeout = 10000)
        {
            string url = string.Format("http://restapi.amap.com/v3/geocode/geo?key=389880a06e3f893ea46036f030c94700&s=rsv3&city=35&address={0}", address);
            return GetLocationByURL(url, timeout);
        }
        private string GetLocationByURL(string url, int timeout = 10000)
        {
            string strResult = "";
            try
            {
                HttpWebRequest req = WebRequest.Create(url) as HttpWebRequest;
                req.ContentType = "multipart/form-data";
                req.Accept = "*/*";
                req.UserAgent = "";
                req.Timeout = timeout;
                req.Method = "GET";
                req.KeepAlive = true;
                HttpWebResponse response = req.GetResponse() as HttpWebResponse;
                using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
                {
                    strResult = sr.ReadToEnd();
                }
            }