DataContractJsonSerializer在反序列化期间将字典内的日期时间值字符串化

不能

JavaScriptSerializer 和 DataContractJsonSerializer . JavaScriptSerializer没有正常工作,因为它坚持使用一些愚蠢的日期时间格式,这会在反序列化后丢失UTC偏移量,不管怎样。

我正在为序列化和反序列化指定自定义日期格式(ISO),字符串看起来还可以。此外,Json.NET可以正确读取它。

我如何有效地解决这个问题, 不做任何正则表达式和手动 转换?

[Test]
    public void SerializerFailure()
    {
       TestObject testObject = new TestObject() {Dict = new Dictionary<string, object>() {{"DateTest", DateTime.UtcNow}, {"DecimalTest", 66.6M}}};
        Assert.IsInstanceOf<DateTime>(testObject.Dict["DateTest"]);

        string serialized = this.Serialize(testObject);
        //output is OK...

        //{"Dict":{"DateTest":"2019-01-07T23:16:59.5142225Z","DecimalTest":66.6}}
        TestObject deserialized = this.Deserialize<TestObject>(serialized);
        Assert.IsInstanceOf<string>(deserialized.Dict["DateTest"]);

        TestObject newtonDeserialized = JsonConvert.DeserializeObject<TestObject>(serialized);
        testObject.ShouldBeEquivalentTo(newtonDeserialized); //passes OK


        testObject.ShouldBeEquivalentTo(deserialized); //Fails

        //ERROR: Expected member Dict[DateTest] to be 
        //      "2019-01-07T23:27:23.0758967Z" with a length of 28, but
        //      "07.01.2019 23:27:23" has a length of 19.
        //          Expected member Dict[DateTest] to be
        //      "2019-01-07T23:27:23.0758967Z", but
        //      "07.01.2019 23:27:23" differs near "07."(index 0).

    }

序列化:

    public string Serialize(object objectToPost)
    {
        using (MemoryStream stream = new System.IO.MemoryStream())
        {
            var settings = new DataContractJsonSerializerSettings() { DateTimeFormat = new DateTimeFormat("O"), UseSimpleDictionaryFormat = true };

            DataContractJsonSerializer serializer
                = new DataContractJsonSerializer(objectToPost.GetType(), settings);
            serializer.WriteObject(stream, objectToPost);
            stream.Flush();
            stream.Seek(0, SeekOrigin.Begin);
            using (StreamReader reader = new StreamReader(stream))
            {
                return reader.ReadToEnd();
            }
        }
    }

    public T Deserialize<T>(string stringContent)
    {
        try
        {
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(stringContent)))
            {
                var settings = new DataContractJsonSerializerSettings() { DateTimeFormat = new DateTimeFormat("O"), UseSimpleDictionaryFormat = true };
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T), settings);
                return (T)serializer.ReadObject(ms);
            }
        }
        catch (Exception ex)
        {
            throw new InvalidOperationException($"Error while deserializing string as {typeof(T).Name}", ex);
        }

    }