如何用c# [duplicate]中的日期反序列化对象

This question already has an answer here:

这个问题已经有了答案:

Deserializing dates with dd/mm/yyyy format using Json.Net 5 answers
使用dd/mm/yyyy格式使用Json反序列化日期。净5答案

I have this Json from a web api:

这个Json来自web api:

jsonstring ={"users":[{"id":1123,"last_update":"2016-02-28 14:53:04"}],"page":1,"pages":1}

which I want to deserialize in an object like:

我想在对象中反序列化如下:

public class Rootobject
{
    public User[] users { get; set; }
    public int page { get; set; }
    public int pages { get; set; }
}

public class User
{
    public int id { get; set; }
    public DateTime last_update { get; set; }
}

for this I use:

我使用:

 var obj= JsonConvert.DeserializeObject<Rootobject>(jsonString);

the result has null for last_update.

对于last_update，结果为空。

jsonstring is a string result from WebClient.DownloadString(url); which look like above example.

jsonstring是来自WebClient.DownloadString(url)的字符串结果;看起来像上面的例子。

How can I get the date on deserialization?

我怎样才能得到反序列化的日期?

Edit:

编辑:

None of the solutions from this post Deserializing dates with dd/mm/yyyy format using Json.Net help me fix my issue.

本文中使用dd/mm/yyyy格式使用Json反序列化日期的解决方案都没有。Net帮助我解决问题。

3 个解决方案

#1

var obj = JsonConvert.DeserializeObject<Rootobject>(jsonString, 
            new IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-dd HH:mm:ss" });

Fiddle

小提琴

#2

Change the property last_update as Nullable, Then it allows you to assign the null literal to the DateTime type. It provides another level of indirection. So use like the following:

将属性last_update更改为Nullable，然后它允许您将null文字分配给DateTime类型。它提供了另一个层次的间接。所以使用如下:

public DateTime? last_update { get; set; }

This is for accepting The date even if it is null, you can specify the Date format While Deserializing the JSON. Use this Thread for that

这是为了接受日期，即使它是空的，您也可以在反序列化JSON时指定日期格式。用这个线程

#3

-1

"2016-02-28 14:53:04" is not a valid RFC3339 date time, and I think it can't parse it because of that.

“2016-02-28 14:53:04”不是一个有效的RFC3339日期时间，我认为它无法解析它。

It has to be:

它必须是:

2016-02-28T14:53:04

Also note that the can't be null, since DateTime is a struct. To make it nullable, make the data type DateTime? which does allow null values.

还要注意不能为空，因为DateTime是一个结构体。要使它为nullable，请令数据类型DateTime?它允许空值。

#1

var obj = JsonConvert.DeserializeObject<Rootobject>(jsonString, 
            new IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-dd HH:mm:ss" });