反序列化xml，包括名称空间 [英] Deserializing xml, including namespace

问题描述

我正在尝试反序列化某些XML，但无法使名称空间/ xsi:type ="Model" 正常工作.如果将 xsi:type ="Model" 排除在XML之外，它将起作用，但必须存在.如果将名称空间放在模型之外，则会出现错误，如果将其重命名，则会得到一个空列表.

I am trying to deserialize some XML and I can't get the namespace / xsi:type="Model" to work. If xsi:type="Model" is left out of the XML it works, but it has to be there. If I leave the namespace out of my Model, I get an error, if I rename it, I get an empty list.

XML

<Vehicles xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <Vehicle xsi:type="Model">
        <Id>238614402</Id>
    </Vehicle>
    <Vehicle xsi:type="Model">
        <Id>238614805</Id>
    </Vehicle>
</Vehicles>

模型

[XmlRootAttribute("Vehicles")]
public class Vehicles
{
    public Vehicles() 
    {
        Vehicle = new List<Vehicle>();
    }

    [XmlElement(ElementName = "Vehicle", Namespace = "http://www.w3.org/2001/XMLSchema-instance")]
    public List<Vehicle> Vehicle { get; set; }
}


public class Vehicle
{
    [XmlElement("Id")]
    public int Id { get; set; }

}

反序列化

XmlSerializer serializer = new XmlSerializer(typeof(Vehicles));
string carXML = "<Vehicles xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Vehicle  xsi:type=\"Model\"> <Id>238614402</Id> </Vehicle><Vehicle  xsi:type=\"Model\"> <Id>238614805</Id> </Vehicle></Vehicles>";

var cars = (Vehicles)serializer.Deserialize(new StringReader(carXML));

上面的示例返回一个空列表，因为据我所知，命名空间是错误的-如何获取它以返回实际列表?

The example above returns an empty list, because the namespace is wrong, as far as I know - how do I get it to return an actual list?

编辑我对XML没有任何控制权，我是从其他提供商那里获得的，所以我将不得不相应地更改其余代码.

EDIT I don't have any control over the XML, I'm getting that from a different provider, so I will have to change the rest of the code accordingly.

推荐答案

请尝试以下操作:

public partial class Vehicles
{
    [XmlElement("Vehicle")]
    public Vehicle[] Vehicle { get; set; }
}

[XmlInclude(typeof(Model))]
public partial class Vehicle
{
    public uint Id { get; set; }
}

public class Model : Vehicle { }

请注意输入车辆.

var xs = new XmlSerializer(typeof(Vehicles));
Vehicles vehicles;

using (var fs = new FileStream("file.xml", FileMode.Open))
{
    vehicles = (Vehicles)xs.Deserialize(fs);
}

foreach (var vehicle in vehicles.Vehicle)
{
    Console.WriteLine(vehicle.GetType()); // Model
    Console.WriteLine(vehicle.Id);
}

无需指定名称空间.序列化属性时，会自动添加实际类型为 Model 的属性 xsi .

No need to specify namespace. When serializing an attribute xsi will be added automatically with actual type Model.

xs.Serialize(Console.Out, vehicles);

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