我在尝试在服务器上序列化类时遇到问题，将其发送到客户端并在目标上进行反序列化。

在服务器上我有以下两个类:

[XmlRoot("StatusUpdate")]
public class GameStatusUpdate
{
    public GameStatusUpdate()
    {}

    public GameStatusUpdate(Player[] players, Command command)
    {
        this.Players = players;
        this.Update = command;
    }

    [XmlArray("Players")]
    public Player[] Players { get; set; }

    [XmlElement("Command")]
    public Command Update { get; set; }
}

和

[XmlRoot("Player")]
public class Player
{
    public Player()
    {}

    public Player(PlayerColors color)
    {
        Color = color;
        ...
    }

    [XmlAttribute("Color")]
    public PlayerColors Color { get; set; }

    [XmlAttribute("X")]
    public int X { get; set; }

    [XmlAttribute("Y")]
    public int Y { get; set; }
}

(缺少的类型都是枚举)。

这会在序列化时生成以下 XML:

<?xml version="1.0" encoding="utf-16"?>
<StatusUpdate>
  <Players>
    <Player Color="Cyan" X="67" Y="32" />
  </Players>
  <Command>StartGame</Command>
</StatusUpdate>

在客户端，我试图将其反序列化为以下类:

[XmlRoot("StatusUpdate")]
public class StatusUpdate
{
    public StatusUpdate()
    {

    }

    [XmlArray("Players")]
    [XmlArrayItem("Player")]
    public PlayerInfo[] Players { get; set; }

    [XmlElement("Command")]
    public Command Update { get; set; }
}

和

[XmlRoot("Player")]
public class PlayerInfo
{
    public PlayerInfo()
    {
    }

    [XmlAttribute("X")]
    public int X { get; set; }

    [XmlAttribute("Y")]
    public int Y { get; set; }

    [XmlAttribute("Color")]
    public PlayerColor Color { get; set; }
}

但是，反序列化器抛出异常:

There is an error in XML document (2, 2).
<StatusUpdate xmlns=''> was not expected.

我错过了什么或做错了什么？

编辑:

根据要求，我还添加了用于序列化和反序列化的代码:

服务器:

    public static byte[] SerializeObject(Object obj)
    {
        XmlSerializer xmlSerializer = new XmlSerializer(obj.GetType());
        StringWriter writer = new StringWriter();

        // Clear pre-defined namespaces
        XmlSerializerNamespaces xsn = new XmlSerializerNamespaces();
        xsn.Add("", "");

        xmlSerializer.Serialize(writer, obj, xsn);
        writer.Flush();

        // Send as little-endian UTF-16 string because the Serializer denotes XML as 
        // utf-18 which cannot be easly changed
        UnicodeEncoding encoder = new UnicodeEncoding(false, false);
        return encoder.GetBytes(writer.ToString());
    }

客户:

    public static object DeserializeXml(string xmlData, Type type)
    {
        XmlSerializer xmlSerializer = new XmlSerializer(type);


        StringReader reader = new StringReader(xmlData);
        object obj = xmlSerializer.Deserialize(reader);

        return obj;
    }

反序列化调用

StatusUpdate update = (StatusUpdate) Util.DeserializeXml(xmlData, typeof (StatusUpdate));

最佳答案

经过大量测试，我终于发现了一个错误。这不是编码问题，也不是其他代码中的问题，也不是缺少命名空间的问题。

缺少的部分是反序列化时数组中对象类型的注释。

所以我不得不将我的 StatusUpdate 类更改为

[XmlRoot("StatusUpdate")]
public class StatusUpdate
{
    public StatusUpdate()
    {

    }

    [XmlArray("Players"), XmlArrayItem(ElementName = "Player", Type = typeof(PlayerInfo))]
    public PlayerInfo[] Players { get; set; }

    [XmlElement("Command")]
    public ServerCommand Update { get; set; }
}

序列化开始完美运行。

我希望这对其他人有帮助。

关于c# - 反序列化嵌套类时不希望出现 xmlns =''，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/2797763/