数组反序列化不支持获取错误类型 'System.String'

Question

我在使用 JavascriptDeserializer

在 c# 中反序列化 JSON 对象的嵌套数组时遇到问题

这是我的代码

  using (Stream s = request.GetResponse().GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(s))
                    {
                        string jsondata = sr.ReadToEnd();

                        var workout = ser.Deserialize<clServiceOutput1>(jsondata);
                    }
                }

这是我的 Jsondata

{"Data":"50951","FileData":[37,80,68,70,45,49,46,51,13,37,226,227,207,211,13,10],"MailItem":null,"Status":"Success","TurnAroundTime":null}

这是我的 class

public class clServiceOutput1
    {
        public string Data { get; set; }
        public string FileData { get; set; }
        public string MailItem { get; set; }
        public string Status { get; set; }
        public string TurnAroundTime { get; set; }

    }

Answer 1

FileData 是 json 字符串中数值的集合。

"FileData":[37,80,68,70,45,49,46,51,13,37,226,227,207,211,13,10]

你需要

List<int> FileData //or int[]

作为旁注，使用 http://json2csharp.com/ 复制您的 json 并取回 C# 模板 class。将您的 JSON 粘贴到上述站点会导致：

public class RootObject
{
    public string Data { get; set; }
    public List<int> FileData { get; set; }
    public object MailItem { get; set; }
    public string Status { get; set; }
    public object TurnAroundTime { get; set; }
}

基于 @xanatos

的评论

By the name of the field, it seems to be the binary "stream" of a file, not something that must be expanded. So a byte[] could also be the type of your field

数组反序列化不支持获取错误类型 'System.String'

Getting error Type 'System.String' is not supported for deserialization of an array

c#

serialization

json