我怎样才能序列化和反序列化动态作为IDictionary <string，object>在Json.Net

Question

我必须使用旧版本的Json.Net（我们的ESB使用它）比4.5.2早。

基于DynamicObject的类存在内存泄漏。

我使用Rick的为Expando类https://github.com/RickStrahl/Expando

我想序列化我为Expando对象的IDictionary和反序列化作为我为Expando对象

我试图用CustomJsonConverter你可以看到：

public class ExpandoConverter : JsonConverter 
{ 
    public override bool CanConvert(Type objectType) 
    { 
     return typeof(Expando).IsAssignableFrom(objectType); 
    } 

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) 
    { 
     if (reader.TokenType == JsonToken.Null) 
      return null; 

     JObject jObject = JObject.Load(reader); 
     // It is easier to write readJson I will implement 
     throw new NotImplementedException(); 
    } 

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) 
    { 
     var x = (value as Expando); 
     writer.WriteStartObject(); 
     foreach (var item in x.GetProperties(true)) 
     { 
      writer.WritePropertyName(item.Key); 

      serializer.Serialize(writer,item.Value); 

      writer.WriteEndObject(); 
     } 
     writer.WriteEndObject(); 
    } 

但是我每次尝试实现WriteJson时都会出现奇怪的错误：

Token PropertyName in state Array would result in an invalid JSON object. Path '$values'.

有没有这样的（在WriteJson）没有简单的方法：

var dictionary= ExpandoToDictionary(expando); 
serializer.Serialize(writer,dictionary); 

Answer 1

在没有mcve的可能还有其他问题与您的代码，但是你需要删除内从WriteJson()来电WriteEndObject()：

public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) 
{ 
    var x = (value as Expando); 
    writer.WriteStartObject(); 
    foreach (var item in x.GetProperties(true)) 
    { 
     writer.WritePropertyName(item.Key); 

     serializer.Serialize(writer,item.Value); 

     // Do not close the object here also. 
    } 
    writer.WriteEndObject(); 
} 

呼叫至WriteStartObject()和WriteEndObject()应该配对。