这是一个非常普遍的问题。使用“
JsonConvert.SerializeObject”不是一个坏主意。但是，在某些情况下（通常是集合）可以使用的一个技巧是在写入时将其转换为接口，在读取时将其反序列化为简单的派生。
下面是一个简单的转换器，它处理可能被序列化为一组KVP而不是看起来像对象的字典（在这里显示我的年龄：））
注意“ WriteJson”强制转换为IDictionary
DummyDictionary”。您最终得到了正确的结果，但是使用了传递的序列化器而不会导致递归。
/// <summary>/// Converts a <see cref="KeyValuePair{TKey,TValue}"/> to and from JSON./// </summary>public class DictionaryAsKVPConverter<TKey, TValue> : JsonConverter{ /// <summary> /// Determines whether this instance can convert the specified object type. /// </summary> /// <param name="objectType">Type of the object.</param> /// <returns> /// <c>true</c> if this instance can convert the specified object type; otherwise, <c>false</c>. /// </returns> public override bool CanConvert(Type objectType) { if (!objectType.IsValueType && objectType.IsGenericType) return (objectType.GetGenericTypeDefinition() == typeof(Dictionary<,>)); return false; } /// <summary> /// Writes the JSON representation of the object. /// </summary> /// <param name="writer">The <see cref="JsonWriter"/> to write to.</param> /// <param name="value">The value.</param> /// <param name="serializer">The calling serializer.</param> public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { var dictionary = value as IDictionary<TKey, TValue>; serializer.Serialize(writer, dictionary); } /// <summary> /// Reads the JSON representation of the object. /// </summary> /// <param name="reader">The <see cref="JsonReader"/> to read from.</param> /// <param name="objectType">Type of the object.</param> /// <param name="existingValue">The existing value of object being read.</param> /// <param name="serializer">The calling serializer.</param> /// <returns>The object value.</returns> public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { Dictionary<TKey, TValue> dictionary; if (reader.TokenType == JsonToken.StartArray) { dictionary = new Dictionary<TKey, TValue>(); reader.Read(); while (reader.TokenType == JsonToken.StartObject) { var kvp = serializer.Deserialize<KeyValuePair<TKey, TValue>>(reader); dictionary[kvp.Key] = kvp.Value; reader.Read(); } } else if (reader.TokenType == JsonToken.StartObject) // Use DummyDictionary to fool JsonSerializer into not using this converter recursively dictionary = serializer.Deserialize<DummyDictionary>(reader); else dictionary = new Dictionary<TKey, TValue>(); return dictionary; } /// <summary> /// Dummy to fool JsonSerializer into not using this converter recursively /// </summary> private class DummyDictionary : Dictionary<TKey, TValue> { }}
