Question

在我的C＃项目中，我试图获取建筑物的经纬度。我将此线程用作基础Distance between addresses，并尝试对其进行调整以获取位置的经度和纬度。目前，从API中获取JSON响应很好，正在从JSON响应中获取我想要的值。

这是我的代码

string requesturl = url;
string content = fileGetContents(requesturl);
JObject o = JObject.Parse(content);
user.Latitude = (double)o.SelectToken("results[0].geometry[0].location[0].lat");
user.Longitude = (double)o.SelectToken("results[0].geometry[0].location[0].lng");

protected string fileGetContents(string fileName)
    {
        string sContents = string.Empty;
        string me = string.Empty;
        try
        {
            if (fileName.ToLower().IndexOf("https:") > -1)
            {
                System.Net.WebClient wc = new System.Net.WebClient();
                byte[] response = wc.DownloadData(fileName);
                sContents = System.Text.Encoding.ASCII.GetString(response);

            }
            else
            {
                System.IO.StreamReader sr = new System.IO.StreamReader(fileName);
                sContents = sr.ReadToEnd();
                sr.Close();
            }
        }
        catch { sContents = "unable to connect to server "; }
        return sContents;
    }

Answer 1

问题似乎出在您试图像访问列表一样访问几何和位置。试试这个：

user.Latitude = (double)o.SelectToken("results[0].geometry.location.lat");
user.Longitude = (double)o.SelectToken("results[0].geometry.location.lng");

C＃从Google GeoCoding API获得长期支持

1 个答案: