c# - 如何解析包含 C# 列表的 Json WebApi 响应

Question

嗨，我有一个像

这样的 json 响应

{"Status":"Success","Message":"Authentication successful","Data":{"Key":"sdsdIRs99Iebe6QHmawlBsCks9mqfUt6jKYNQ%2bW","UserId":"ddjjj8-11e6-637af7"}}

我如何解析它以读取响应。

我是这样做的:

private void POST(string url) 
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "POST";

    System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();

    postData="{\"UserName\": \"abc\"," +"\"Password\": \"mypwd\"}";

    Byte[] byteArray = Encoding.UTF8.GetBytes(postData);

    request.ContentLength = byteArray.Length;
    request.ContentType = @"application/x-www-form-urlencoded";

    using (Stream dataStream = request.GetRequestStream())
    {
        dataStream.Write(byteArray, 0, byteArray.Length);
    }

    long length = 0;

    try 
    {
        using (HttpWebResponse response =  (HttpWebResponse)request.GetResponse())
        {
            length = response.ContentLength;
             using (var reader = new StreamReader(response.GetResponseStream()))
             {
                JavaScriptSerializer js = new JavaScriptSerializer();
                var objText = reader.ReadToEnd();

                string str= objText;
                MyObject myojb = (MyObject)js.Deserialize(objText,typeof(MyObject));           
            }
        }                       
    }
    catch (WebException ex) 
    {
        // Log exception and throw as for GET example above
    }
}

我能够读取“状态”和“消息”但无法读取“ key ”和“用户 ID”值。

请帮忙!

Answer 1

您可以使用 Newtonsoft Json 而不是 JavaScriptSerializer 您的 json 的类结构如下所示

public class Rootobject
{
    public string Status { get; set; }
    public string Message { get; set; }
    public Data Data { get; set; }
}

public class Data
{
    public string Key { get; set; }
    public string UserId { get; set; }
}

反序列化可以很容易地完成，就像

Rootobject ro = JsonConvert.DeserializeObject<Rootobject>(json);

Console.WriteLine(ro.Status + ", " + ro.Message + ", " + ro.Data.Key + ", " + ro.Data.UserId);