c# - 使用 JavaScriptSerializer 序列化字典

Question

显然，IDictionary<string,object>被序列化为 KeyValuePair 的数组对象(例如 [{Key:"foo", Value:"bar"}, ...] )。是否可以将其序列化为对象(例如 {foo:"bar"})？

Answer 1

虽然我同意 JavaScriptSerializer 是垃圾，而 Json.Net 是更好的选择，但有一种方法可以使 JavaScriptSerializer 以您想要的方式序列化。您将必须注册一个转换器并使用如下内容覆盖 Serialize 方法:

    public class KeyValuePairJsonConverter : JavaScriptConverter
{
    public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)
    {
        var instance = Activator.CreateInstance(type);

        foreach (var p in instance.GetType().GetPublicProperties())
        {
            instance.GetType().GetProperty(p.Name).SetValue(instance, dictionary[p.Name], null);
            dictionary.Remove(p.Name);
        }

        foreach (var item in dictionary)
            (instance).Add(item.Key, item.Value);

        return instance;
    }
    public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
    {
        var result = new Dictionary<string, object>();
        var dictionary = obj as IDictionary<string, object>;
        foreach (var item in dictionary)
            result.Add(item.Key, item.Value);
        return result;
    }
    public override IEnumerable<Type> SupportedTypes
    {
        get
        {
            return new ReadOnlyCollection<Type>(new Type[] { typeof(your_type) });
        }
    }
}

JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
javaScriptSerializer.RegisterConverters(new JavaScriptConverter[] { new ExpandoJsonConverter() });
jsonOfTest = javaScriptSerializer.Serialize(test);
// {"x":"xvalue","y":"\/Date(1314108923000)\/"}

希望这对您有所帮助!