Question

开始，我是初学者。我一直在寻找看起来像这个问题的东西，而没有设法解决问题。而现在我一直坚持这个问题。我正在使用本地邮寄的API，我们可以在json链接中获取交货时间，地址等信息。但在这种情况下，json看起来有点不同，我不知道如何使用它。

如果有人能向我解释如何访问交付日期和地址等数据，我会非常高兴。现在，当我尝试时，它只显示值为null。

我使用json.net进行反序列化

下面你可以看到它的样子......

private async void button_Click(object sender, RoutedEventArgs e)
{
    string url = "https://api2.postnord.com/rest/shipment/v1/trackandtrace/findByIdentifier.json?id=...";

    HttpClient client = new HttpClient(); 
    string date = await client.GetStringAsync(new Uri(url));
    var jarray = JsonConvert.DeserializeObject<Rootobject>(date);
}

public class Rootobject
{
    public Trackinginformationresponse TrackingInformationResponse { get; set; }
}

public class Trackinginformationresponse
{
    public Shipment[] shipments { get; set; }
}

public class Shipment
{
    public string shipmentId { get; set; }
    public string uri { get; set; }
    public int assessedNumberOfItems { get; set; }
    public DateTime deliveryDate { get; set; }
    public DateTime estimatedTimeOfArrival { get; set; }
    public Service service { get; set; }
    public Consignor consignor { get; set; }
    public Consignee consignee { get; set; }
    public Statustext statusText { get; set; }
    public string status { get; set; }
    public Totalweight totalWeight { get; set; }
    public Totalvolume totalVolume { get; set; }
    public Assessedweight assessedWeight { get; set; }
    public Item[] items { get; set; }
    public Additionalservice[] additionalServices { get; set; }
    public object[] splitStatuses { get; set; }
    public Shipmentreference[] shipmentReferences { get; set; }
}

public class Service
{
    public string code { get; set; }
    public string name { get; set; }
}

public class Consignor
{
    public string name { get; set; }
    public Address address { get; set; }
}

public class Address
{
    public string street1 { get; set; }
    public string city { get; set; }
    public string countryCode { get; set; }
    public string country { get; set; }
    public string postCode { get; set; }
}

public class Consignee
{
    public Address1 address { get; set; }
}

public class Address1
{
    public string city { get; set; }
    public string countryCode { get; set; }
    public string country { get; set; }
    public string postCode { get; set; }
}

public class Statustext
{
    public string header { get; set; }
    public string body { get; set; }
}

public class Totalweight
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Totalvolume
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Assessedweight
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Item
{
    public string itemId { get; set; }
    public DateTime dropOffDate { get; set; }
    public DateTime deliveryDate { get; set; }
    public string typeOfItemActual { get; set; }
    public string typeOfItemActualName { get; set; }
    public string status { get; set; }
    public Statustext1 statusText { get; set; }
    public Statedmeasurement statedMeasurement { get; set; }
    public Assessedmeasurement assessedMeasurement { get; set; }
    public Event[] events { get; set; }
    public Reference[] references { get; set; }
    public object[] itemRefIds { get; set; }
    public object[] freeTexts { get; set; }
}

public class Statustext1
{
    public string header { get; set; }
    public string body { get; set; }
}

public class Statedmeasurement
{
    public Weight weight { get; set; }
    public Length length { get; set; }
    public Height height { get; set; }
    public Width width { get; set; }
    public Volume volume { get; set; }
}

public class Weight
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Length
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Height
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Width
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Volume
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Assessedmeasurement
{
    public Weight1 weight { get; set; }
}

public class Weight1
{
    public string value { get; set; }
    public string unit { get; set; }
}

public class Event
{
    public DateTime eventTime { get; set; }
    public string eventCode { get; set; }
    public string status { get; set; }
    public string eventDescription { get; set; }
    public Location location { get; set; }
}

public class Location
{
    public string displayName { get; set; }
    public string name { get; set; }
    public string locationId { get; set; }
    public string countryCode { get; set; }
    public string country { get; set; }
    public string postcode { get; set; }
    public string city { get; set; }
    public string locationType { get; set; }
}

public class Reference
{
    public string value { get; set; }
    public string type { get; set; }
    public string name { get; set; }
}

public class Additionalservice
{
    public string code { get; set; }
    public string name { get; set; }
}

public class Shipmentreference
{
    public string value { get; set; }
    public string type { get; set; }
    public string name { get; set; }
}

{
    "TrackingInformationResponse": {
        "shipments": [{
            "shipmentId": "85319760154SE",
            "uri": "/ntt-service-rest/api/shipment/85319760154SE/0",
            "assessedNumberOfItems": 1,
            "deliveryDate": "2016-03-22T20:35:00",
            "estimatedTimeOfArrival": "2016-03-22T13:41:00",
            "service": {
                "code": "19",
                "name": "MyPack"
            },
            "consignor": {
                "name": "H&M",
                "address": {
                    "street1": "HULTAGATAN 47",
                    "city": "BORÅS",
                    "countryCode": "SWE",
                    "country": "Sweden",
                    "postCode": "50189"
                }
            },
            "consignee": {
                "address": {
                    "city": "UDDEVALLA",
                    "countryCode": "SWE",
                    "country": "Sweden",
                    "postCode": "45133"
                }
            }
        }]
    }
}

Answer 1

这是一个可能对您有帮助的现有帖子。

Deserializing JSON to .NET object using Newtonsoft (or LINQ to JSON maybe?)

这里有关于牛顿软件的一些信息。 http://www.newtonsoft.com/json/help/html/deserializeobject.htm

使用示例：

Newtonsoft.Json.JsonConvert.DeserializeObject()

Answer 2

您可以尝试使用

var jarray = JsonConvert.DeserializeObject<Rootobject>(date, 
  new IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-ddTHH:mm:ss" });

Answer 3

与其他答案状态一样，JsonConvert.DeserializeObject<>()是您需要的方法。之后，您只需要遍历反序列化的数据结构。

关于在尝试反序列化后获得NULL的原因，如果反序列化失败，则返回NULL。通常，当数据格式错误或字符不匹配时。但对于您提供的示例JSON，它使用您的类正确地为我保留。

Rootobject root = JsonConvert.DeserializeObject<Rootobject>(data);
if (root == null ||
    root.TrackingInformationResponse == null ||
    root.TrackingInformationResponse.shipments == null ||
    root.TrackingInformationResponse.shipments.Length == 0)
{
    throw new Exception();
}
Shipment shipment = root.TrackingInformationResponse.shipments[0];

if (shipment.consignee == null || shipment.consignee.address == null)
{
    throw new Exception();
}

Console.WriteLine("Consignee: {0}", shipment.consignee);
Console.WriteLine("Estimated Time of Arrival: {0}", shipment.estimatedTimeOfArrival);

C＃寻求帮助如何反序化这种json

3 个答案: