嘿,伙计们,我正试图从API反序列化JSON响应,然后显示数据。我以字符串的形式得到响应,并试图将其映射到一个对象。这是twitter的一个响应,它用多个tweet来响应,所以我试图将它映射到tweet列表。
我收到以下异常。
System.InvalidOperationException: Type 'Default3+TwitterApiData' is not supported for deserialization of an array. at System.Web.Script.Serialization.ObjectConverter.ConvertListToObject(IList list, Type type, JavaScriptSerializer serializer, Boolean throwOnError, IList& convertedList) at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input) at Default3.Page_Load(Object sender, EventArgs e)
这可能是因为我在JSON中没有每个键值对的数据成员吗?返回的JSON大约是60 KV对,我不需要所有的数据,所以我只有两个成员。
或者我在反序列化到对象数组时是否有潜在的错误?下面是我做反序列化的代码。
提前感谢您的帮助。
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resourceUrl);
request.Headers.Add("Authorization", authorizationHeader);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
try
{
WebResponse response = request.GetResponse();
var responseData = new StreamReader(response.GetResponseStream()).ReadToEnd();
TwitterApiData twitterApiResponse = new JavaScriptSerializer().Deserialize<TwitterApiData>(responseData);
foreach (var item in twitterApiResponse.data)
{
lblResponse.InnerText = "created_at: " + item.created_at + " text: " + item.text;
}
}
catch (Exception ex)
{
lblResponse.InnerText = ex.ToString();
}
那么我要映射到的对象。也看看这个我需要[DataContract]和[DataMember]属性吗?
public class TwitterApiData
{
public List<Tweet> data { get; set; }
}
public class Tweet
{
public string created_at { get; set; }
public string text { get; set; }
}
TwitterApiData data = new JavaScriptSerializer().Deserialize<TwitterApiData>(strContent);
我明白了,我不需要包装对象。我只是把它反序列化成推特列表。
var twitterApiResponse = new JavaScriptSerializer().Deserialize<List<Tweet>>(responseData);
排序。