DataContractJsonSerializer ReadObject（）返回空值

Question

我想反序列化JSON數據，以便我可以將值插入到我的數據庫中，但我一直在sts.text獲取空值。有人可以協助嗎？感謝

這裏是合同我的數據

[DataContract] 
internal class Statuses 
{ 
    [DataMember(Name = "text", IsRequired = false)] 
    internal string text; 
} 


     try 
     { 
      HttpWebResponse webResponse = webRequest.GetResponse() as HttpWebResponse; 
      Stream dataStream = webResponse.GetResponseStream(); 
      // Open the stream using a StreamReader for easy access. 
      StreamReader reader = new StreamReader(dataStream); 
      // Read the content. 
      string responseFromServer = reader.ReadToEnd(); 

      DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(Statuses)); 
      MemoryStream ms = new MemoryStream(System.Text.ASCIIEncoding.ASCII.GetBytes(responseFromServer)); 

      Statuses sts = (Statuses)js.ReadObject(ms);     
      Console.WriteLine("text: " + sts.text); 

     } 
     catch (Exception ex) 
     { 
     } 

Answer 1

這爲我工作：

// Read the content. 
    const string responseFromServer = "{\"text\":\"testing\"}"; //Add JSON 

    var js = new DataContractJsonSerializer(typeof(Statuses)); 
    var ms = new MemoryStream(Encoding.UTF8.GetBytes(responseFromServer)); 

    var sts = (Statuses)js.ReadObject(ms); 
    Response.Write("text: " + sts.text); 

另外值得一提的，我轉換內部訪問修飾符與公共訪問修飾符

[DataContract] 
public class Statuses 
{ 
    [DataMember(Name = "text", IsRequired = false)] 
    public string text; 
} 

另外請注意，我改變了：

System.Text.ASCIIEncoding.ASCII.GetBytes(responseFromServer) 

有了：

Encoding.UTF8.GetBytes(responseFromServer) 

以及最終輸出，我從我的測試得到的是：

文本：測試