如何将JSON字典序列化/反序列化为数组

您可以扩展CustomDictionaryConverter阅读和写作，如下所示：

public class CustomDictionaryConverter : JsonConverter
{
    // Adapted from CustomDictionaryConverter from this answer https://stackoverflow.com/a/40265708
    // To https://stackoverflow.com/questions/40257262/serializing-dictionarystring-string-to-array-of-name-value
    // By Brian Rogers https://stackoverflow.com/users/10263/brian-rogers

    sealed class InconvertibleDictionary : Dictionary<object, object>
    {
        public InconvertibleDictionary(DictionaryEntry entry)
            : base(1)
        {
            this[entry.Key] = entry.Value;
        }
    }

    public override bool CanConvert(Type objectType)
    {
        return typeof(IDictionary).IsAssignableFrom(objectType) && objectType != typeof(InconvertibleDictionary);
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        // Lazy evaluation of the enumerable prevents materialization of the entire collection of dictionaries at once.
        serializer.Serialize(writer,  Entries(((IDictionary)value)).Select(p => new InconvertibleDictionary(p)));
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        if (reader.MoveToContentAndAssert().TokenType == JsonToken.Null)
            return null;
        var dictionary = existingValue ?? serializer.ContractResolver.ResolveContract(objectType).DefaultCreator();
        switch (reader.TokenType)
        {
            case JsonToken.StartObject:
                serializer.Populate(reader, dictionary);
                return dictionary;

            case JsonToken.StartArray:
                {
                    while (true)
                    {
                        switch (reader.ReadToContentAndAssert().TokenType)
                        {
                            case JsonToken.EndArray:
                                return dictionary;

                            case JsonToken.StartObject:
                                serializer.Populate(reader, dictionary);
                                break;

                            default:
                                throw new JsonSerializationException(string.Format("Unexpected token {0}", reader.TokenType));
                        }
                    }
                }

            default:
                throw new JsonSerializationException(string.Format("Unexpected token {0}", reader.TokenType));
        }
    }

    static IEnumerable<DictionaryEntry> Entries(IDictionary dict)
    {
        foreach (DictionaryEntry entry in dict)
            yield return entry;
    }
}

public static partial class JsonExtensions
{
    public static JsonReader ReadToContentAndAssert(this JsonReader reader)
    {
        return reader.ReadAndAssert().MoveToContentAndAssert();
    }

    public static JsonReader MoveToContentAndAssert(this JsonReader reader)
    {
        if (reader == null)
            throw new ArgumentNullException();
        if (reader.TokenType == JsonToken.None)       // Skip past beginning of stream.
            reader.ReadAndAssert();
        while (reader.TokenType == JsonToken.Comment) // Skip past comments.
            reader.ReadAndAssert();
        return reader;
    }

    public static JsonReader ReadAndAssert(this JsonReader reader)
    {
        if (reader == null)
            throw new ArgumentNullException();
        if (!reader.Read())
            throw new JsonReaderException("Unexpected end of JSON stream.");
        return reader;
    }
}

然后，您可以DeploymentSettings使用以下设置序列化和反序列化：

var settings = new JsonSerializerSettings
{
    Converters = { new CustomDictionaryConverter(), new StringEnumConverter() }
};

var ds = JsonConvert.DeserializeObject<DeploymentSettings>(json, settings);

var json2 = JsonConvert.SerializeObject(ds, Formatting.Indented, settings);

笔记：

• 此版本转换器避免加载整个字典到一个临时JArray层次结构，无论是ReadJson()或WriteJson()，而是直接从和到JSON流流。

• 因为现在使用序列化程序直接序列化各个词典条目，StringEnumConverter所以正确命名键是必需的。（如果DateTime您在任何地方都使用这样的字典，则使用序列化程序还可以确保数字或键正确地国际化。）

• 由于Json.NET支持注释，因此转换器会检查并跳过注释，这增加了一点复杂性。（我希望有一种方法可以JsonReader默默地跳过评论。）

演示在这里摆弄。