VB.Net反序列化包含字符串数组而不是键值对的JSON对象

Question

我正在使用返回 JSON 的 API。到目前为止，使用来自System.Web.Script.Serialization 的JavaScriptSerializer 类，所有的序列化和反序列化都很简单。有一个端点可以返回错误，并且在其错误列表中不使用 KVP（不知道为什么，违反了其余 api 的结构）。

我无法确定要反序列化的类结构。

示例返回：

{
"status": "failed",
"errors": [
    [
        ["base", "error details 1"], 
        ["base", "error details 2"], 
        ["base", "error details 3"]
    ]
]
}

这是一个令人困惑的数据结构，因为其他所有内容都是配对的。但无论如何，我已经尝试使用数组和列表来处理错误。这是我的课程：

<Serializable> _
Public Class SearchResult
    Public Property status As String
    Public Property id As Integer
    Public Property errors As List(Of APIError)

    Public Sub New()
        errors = New List(Of APIError)
    End Sub

    Public Shared Function Deserialize(ByVal json_string As String) As SearchResult
        Dim result As SearchResult

        Dim jss As New JavaScriptSerializer()

        Try
            result = jss.Deserialize(json_string, GetType(SearchResult))
        Catch ex As Exception
            result = Nothing
            Debug.WriteLine("Failed to deserialize " & json_string)
            Debug.WriteLine(ex.Message)
        End Try

        Return result
    End Function
End Class

还有 API 错误类

<Serializable> _
Public Class APIError
    Public Property error_fields() As String
End Class

我已尝试将其设为列表和数组。我不断收到一条异常消息，指出 Class is not supported for deserialization of an array.

我更喜欢使用 JSS 进行反序列化和序列化，因为我很难将我的老板推销给第三方库。

我哪里错了？谢谢！

Answer 1

这是一个深度嵌套的数组。试试这样的东西（未经测试的 VB 格式）：

<Serializable> _
Public Class SearchResult

    Public Property status As String    
    Public Property errors As List(Of List(Of string()))

    Public Sub New()
        errors = New List(Of List(Of string()))
        errors.Add(new List(Of string()))
    End Sub

    Public Shared Function Deserialize(ByVal json_string As String) As SearchResult
        Dim result As SearchResult

        Dim jss As New JavaScriptSerializer()

        Try
            result = jss.Deserialize(json_string, GetType(SearchResult))
        Catch ex As Exception
            result = Nothing
            Debug.WriteLine("Failed to deserialize " & json_string)
            Debug.WriteLine(ex.Message)
        End Try

        Return result
    End Function
End Class

我测试的原始 C# 是这样的（它确实有效）：

namespace JavaScriptSerializerApp
{
    class Program
    {
        static void Main(string[] args)
        {

            SearchResult sr = new SearchResult();
            sr.status = "failed";
            sr.errors[0].Add(new string[] { "base", "error details 1" });
            sr.errors[0].Add(new string[] { "base", "error details 2" });
            sr.errors[0].Add(new string[] { "base", "error details 3" });

            JavaScriptSerializer jss = new JavaScriptSerializer();

            string output1 = jss.Serialize(sr);

            string json = "{\"status\": \"failed\",\"errors\": [[[\"base\", \"error details 1\"],[\"base\", \"error details 2\"],[\"base\", \"error details 3\"]]]}";
            SearchResult sr2 = (SearchResult)jss.Deserialize(json, typeof(SearchResult));
            string output2 = jss.Serialize(sr2);

            Console.WriteLine((output1 == output2).ToString());

        }
    }

    [Serializable()]
    public class SearchResult
    {
        public SearchResult()
        {
            errors = new List<List<string[]>>();
            errors.Add(new List<string[]>());

        }

        public string status { get; set; }
        public List<List<string[]>> errors { get; set; }
    }

}