c# & newtonsoft 中的 JSON 日期和日期时间序列化

我们正在向swagger定义的API发送JSON，其中一些属性是格式为yyyy MM ddThh:MM:ss的DateTime.000Z(毫秒必须是3位数，否则端点验证失败)，有些是日期(无时间)属性.

I have seen many messages saying use the formatters like this:

var jsonSettings = new JsonSerializerSettings();
jsonSettings.DateFormatString = "yyyy-MM-ddThh:mm:ss.000Z"; //try .fffZ too
var jsonObject= Newtonsoft.Json.JsonConvert.DeserializeObject<OurSwaggerObject>(json , setting);

但这并不能将DateTimes转换为正确的格式，C#如何处理仅限日期的类型？它似乎总是按日期时间顺序排列.MinValue()

Here is an example:

Someone sends me json as string but the the dates and datetimes in the incorrect format to be sent to the endpoint. I was hoping that the swagger class and json deserialisation would format them but it is not.

这是swagger生成的类

 public class OurSwaggerObject
    {
        [Newtonsoft.Json.JsonProperty("dateTimeField", Required = Newtonsoft.Json.Required.Always)]
        [System.ComponentModel.DataAnnotations.Required]
        [System.ComponentModel.DataAnnotations.RegularExpression(@"^\d{4}-\d\d-\d\dT\d\d:\d\d:\d\d\.\d{3}Z$")]
        public DateTime dateTimeField { get; set; }

        [Newtonsoft.Json.JsonProperty("dateField", Required = Newtonsoft.Json.Required.Always)]
        [System.ComponentModel.DataAnnotations.Required]
        [System.ComponentModel.DataAnnotations.RegularExpression(@"^\d{4}-\d\d-\d\d$")]
        public DateTime dateField { get; set; }
    }

So I try and coerce the json to be correct but I'm doing it wrong or something is missing

string json = @"{ 'dateTimeField': '1995-04-07T00:00:00',
                          'dateField': '1995-04-07T00:00:00'
                           }";

        /* The json we need to satisfy the swagger endpoint is:

          { 'dateTimeField': '1995-04-07T00:00:00.000Z',
            'dateField': '1995-04-07'
                           }              
          */

        OurSwaggerObject deserialisedIntoObject = Newtonsoft.Json.JsonConvert.DeserializeObject<OurSwaggerObject>(json);

        string serialisedToString = Newtonsoft.Json.JsonConvert.SerializeObject(deserialisedIntoObject);
        //serialisedToString= "{\"dateTimeField\":\"1995-04-07T00:00:00\",\"dateField\":\"1995-04-07T00:00:00\"}"

        var jsonSettings = new JsonSerializerSettings();
        jsonSettings.DateFormatString = "yyyy-MM-ddThh:mm:ss.fffZ"; //this won't help much for the 'date' only field!
        deserialisedIntoObject = Newtonsoft.Json.JsonConvert.DeserializeObject<OurSwaggerObject>(json,jsonSettings);
        serialisedToString = Newtonsoft.Json.JsonConvert.SerializeObject(deserialisedIntoObject, jsonSettings);
        //serialisedToString="{\"dateTimeField\":\"1995-04-07T00:00:00\",\"dateField\":\"1995-04-07T00:00:00\"}"