即使未指定，您能否告诉 JSON.Net 将 DateTime 序列化为 Utc? [英] Can you tell JSON.Net to serialize DateTime as Utc even if unspecified?

问题描述

我的数据库中的日期存储为 Utc.但是当我使用实体框架检索它们时，它们会以未指定的类型出现.

Dates in my database are stored as Utc. But when I retreieve them w/ the entity framework they come out as type unspecified.

当 JSON.Net 序列化它们时，它们不是 Utc 格式.有没有办法告诉 JSON.Net 将 DateTimes 序列化为 Utc，即使它们的类型没有指定为 Utc?

When JSON.Net serializes them they are not in Utc format. Is there a way to tell JSON.Net to serialize DateTimes as Utc even if their type is not specified as Utc?

推荐答案

将 JsonSerializerSettings 上的 DateTimeZoneHandling 设置为 Utc.这将在序列化之前将所有日期转换为 UTC.

Set DateTimeZoneHandling on JsonSerializerSettings to Utc. That will convert all dates to UTC before serializing them.

public void SerializeObjectDateTimeZoneHandling()
{
  string json = JsonConvert.SerializeObject(
    new DateTime(2000, 1, 1, 1, 1, 1, DateTimeKind.Unspecified),
    new JsonSerializerSettings
    {
      DateTimeZoneHandling = DateTimeZoneHandling.Utc
    });

  Assert.AreEqual(@"""2000-01-01T01:01:01Z""", json);
}

文档:DateTimeZoneHandling 设置

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