百度地圖 獲取兩點坐標之間的駕車距離（非直線距離） c#，

百度地圖 獲取兩點坐標之間的駕車距離（非直線距離） c#，

百度接口了解：

http://lbsyun.baidu.com/index.php?title=webapi/route-matrix-api-v2

起點與終點為多對多關系，如果你只想取兩個坐標，那就各取一個坐標即可。

如下方法，經過測試，獲取的數據是正確的。方法沒寫完，自己轉json數據

/// <summary>
        /// 根據坐標點獲取駕車距離
        /// </summary>
        /// <param name="origins">起點坐標</param>
        /// <param name="destinations">終點坐標</param>
        /// <returns></returns>
        public static string GetDistance(string origins, string destinations)
        {
            try
            {
                //測試數據
                origins = "22.823331,108.326998";
                destinations = "22.832541,108.321788|22.83841,108.294974|22.817868,108.425637|22.883959,108.305368|22.83334,108.32637";

                //行車距離
                string url = "http://api.map.baidu.com/routematrix/v2/driving";
                string ak = "595eRciHjA0MG4TmhTm5ak58M00bQand";
                string param = string.Format("origins={0}&destinations={1}&output=json&ak={2}", origins, destinations, ak);
                string strURL = url + '?' + param;
                System.Net.HttpWebRequest request;
                request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
                request.Method = "GET";
                System.Net.HttpWebResponse response;
                response = (System.Net.HttpWebResponse)request.GetResponse();
                System.IO.Stream s;
                s = response.GetResponseStream();
                string StrDate = "";
                string strValue = "";
                StreamReader Reader = new StreamReader(s, Encoding.UTF8);
                while ((StrDate = Reader.ReadLine()) != null)
                {
                    strValue += StrDate + "\r\n";
                }
                return strValue;
            }
            catch (Exception)
            {
            }
            return "";
        }