使用JSON将JSON字符串(geocode API's google)反序列化为对象.净c#

本文关键字：JSON 反序列化 google 对象 字符串 geocode API 使用 | 更新日期: 2023-09-27 18:01:38

我使用的地理代码API的谷歌，我可以得到JSON字符串与所有日期，但当我将它转换成一个对象，它不工作，它返回任何东西，我使用JSON。. NET，我做错了什么?

在所有JSON数据中，我只想取formatted_address。

json请求:http://maps.googleapis.com/maps/api/geocode/json?address=av.paulista&sensor=false%22

对不起，我的英语不好

我的主要形式:获取JSON数据(工作)

private void btnConsumir_Click(object sender, EventArgs e)
    {
        string address = txtAddress.Text ;
        string searchCode = "http://maps.googleapis.com/maps/api/geocode/json?address=" + address + "&sensor=false";
        var JSONdata = "";

        var httpWebRequest = (HttpWebRequest)WebRequest.Create(searchCode);
        httpWebRequest.ContentType = "text/json";
        httpWebRequest.Method = "POST";

        var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream());
        var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
        using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
        {
            JSONdata = streamReader.ReadToEnd();
        }
        lblJSON.Text = JSONdata;//its a label

这里我想获取json的formatted_address信息:

[...]
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
        {
            JSONdata = streamReader.ReadToEnd();
        }
        lblJSON.Text = JSONdata;//its a label
        AddressObject addressObject = JsonConvert.DeserializeObject<addressObject>(JSONdata);
        string result = addressObject.formatted_address;
        lblJSON.Text = result;

这是我的类对象:

class AddressObject
    {
        public string formatted_address { get; set; }


    }

非常感谢!

使用JSON将JSON字符串(geocode API's google)反序列化为对象.净c#

从api返回的结果远远多于formatted_address。你需要对整个图进行反序列化，然后去掉你想要的。

使用下面的类结构，可以这样做: 
Rootobject mapdata = JsonConvert.DeserializeObject<Rootobject>(JSONdata);

…

public class Rootobject
{
    public Result[] results { get; set; }
    public string status { get; set; }
}
public class Result
{
    public Address_Components[] address_components { get; set; }
    public string formatted_address { get; set; }
    public Geometry geometry { get; set; }
    public string place_id { get; set; }
    public string[] types { get; set; }
}
public class Geometry
{
    public Location location { get; set; }
    public string location_type { get; set; }
    public Viewport viewport { get; set; }
}
public class Location
{
    public float lat { get; set; }
    public float lng { get; set; }
}
public class Viewport
{
    public Northeast northeast { get; set; }
    public Southwest southwest { get; set; }
}
public class Northeast
{
    public float lat { get; set; }
    public float lng { get; set; }
}
public class Southwest
{
    public float lat { get; set; }
    public float lng { get; set; }
}
public class Address_Components
{
    public string long_name { get; set; }
    public string short_name { get; set; }
    public string[] types { get; set; }
}

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