c# - Json.net 全局设置

Question

有没有办法为 Json.net 指定全局设置？

我们遇到的问题是它将所有 DateTimes 都放在 UTC 中(这是正确的)。出于遗留目的，我们希望默认为本地时间。我不想将以下代码放在各处:

var settings = New JsonSerializerSettings();
settings.DateTimeZoneHandling = DateTimeZoneHandling.Local;
JsonConvert.DeserializeObject(json, settings);

Answer 1

所以，这被添加到 Json.net 5.0 Release 5

JsonConvert.DefaultSettings = () => new JsonSerializerSettings
{
    DateTimeZoneHandling = DateTimeZoneHandling.Local
};

来自release notes :

Set once with JsonConvert.DefaultSettings in an application, the default settings will automatically be used by all calls to JsonConvert.SerializeObject/DeserializeObject, and JToken.ToObject/FromObject. Any user supplied settings to these calls will override the default settings.

Because there are cases where JSON should not be customized, e.g. a Facebook or Twitter library, by default JsonSerializer won’t use DefaultSettings, providing an opt-out for those frameworks or for places in your application that shouldn’t use default settings. To create a JsonSerializer that does use them there is a new JsonSerializer.CreateDefault() method.

请注意，当 ASP.NET 直接调用 Newtonsoft 时，例如在模型绑定(bind)或响应格式中，它选择不使用这些全局默认设置。要配置 ASP.NET 内部使用的默认值，请参阅 this answer通过 Andrei .