如何使用JSON.NET反序列化日期（毫秒）？

我正在处理如下响应：

{"id":"https://login.salesforce.com/id/00Dx0000000BV7z/005x00000012Q9P", "issued_at":"1278448832702","instance_url":"https://na1.salesforce.com", "signature":"0CmxinZir53Yex7nE0TD+zMpvIWYGb/bdJh6XfOH6EQ=","access_token": "00Dx0000000BV7z!AR8AQAxo9UfVkh8AlV0Gomt9Czx9LjHnSSpwBMmbRcgKFmxOtvxjTrKW1 9ye6PE3Ds1eQz3z8jr3W7_VbWmEu4Q8TVGSTHxs"} 

我正在尝试将其反序列化为类似于以下内容的类：

 public class TokenResponse { public string Id { get; set; } [JsonProperty(PropertyName = "issued_at")] public DateTime IssuedAt { get; set; } public string Signature { get; set; } [JsonProperty(PropertyName = "instance_url")] public string InstanceUrl { get; set; } [JsonProperty(PropertyName = "access_token")] public string AccessToken { get; set; } } 

反序列化的调用非常简单：

 JsonConvert.DeserializeObject(response.Content); 

这会导致exception：

Could not convert string to DateTime: 1278448832702.

有没有办法让JSON.NET正确地反序列化这个日期？

Answer 1

您可以创建自定义DateTime转换器

 var token = JsonConvert.DeserializeObject(response.Content, new MyDateTimeConverter()); 

---

 public class MyDateTimeConverter : Newtonsoft.Json.JsonConverter { public override bool CanConvert(Type objectType) { return objectType == typeof(DateTime); } public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { var t = long.Parse((string)reader.Value); return new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(t); } public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { throw new NotImplementedException(); } } 

Answer 2

我不认为这是毫秒本身，而是Unix纪元时间，请参阅我在developerforce.com上发现的这篇文章

我相信这可能有所帮助 – 它描述了编写一个自定义JsonConverter，您可以使用它与JSON.net将这些纪元时间转换为DateTime。