Question

起初：对不起，如果这是一个冗长且代码繁重的问题。我正在尝试序列化和反序列化一个名为level的类，如下所示：

[DataContract]
public class Level
{
    [DataMember]
    public List<Face> faces;

    public Level()
    {
        Face a = new Face();
        Face b = new Face();
        Face c = new Face();
        Face d = new Face();

        a.edges.Add(new Edge(b, c));
        b.edges.Add(new Edge(a, c));
        c.edges.Add(new Edge(a, d));
        d.edges.Add(new Edge(a, b));

        this.faces = new List<Face>() { a, b, c, d };
    }
}

[DataContract(IsReference = true)]
public class Face
{
    [DataMember]
    public List<Edge> edges;
    public Face()
    {
        this.edges = new List<Edge>();
    }
}

[DataContract(IsReference = true)]
public class Edge
{
    [DataMember]
    public Face a;
    [DataMember]
    public Face b;

    public Edge(Face a, Face b)
    {
        this.a = a;
        this.b = b;
    }
}

因为有循环引用我需要启用datacontract序列化器的引用功能。但是当我运行这个时我得到错误

SerializationException：找不到引用ID为'i1'的反序列化对象

serialize和deserialize函数如下所示：

// object to be serialized
public Level level;

public void Serialize()
{
    DataContractSerializer serializer = new DataContractSerializer(typeof(Level));
    FileStream stream = new FileStream(Path.Combine(Application.dataPath, "test.xml"), FileMode.Create);
    Debug.Log("serial");
    serializer.WriteObject(stream, level);
    stream.Close();
}

// function to serialize an object to a json text file
public void Deserialize()
{
    FileStream stream = new FileStream(Path.Combine(Application.dataPath, "test.xml"), FileMode.Open);
    DataContractSerializer serializer = new DataContractSerializer(typeof(Level));

    Level loaded = (Level)serializer.ReadObject(stream);

    stream.Close();
}

void Start()
{
    level = new Level();
    Serialize();

    Deserialize();
}

这里也是一个序列化的xml示例：

<Level xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/">
    <faces>
        <Face z:Id="i1" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/">
            <edges>
                <Edge z:Id="i2">
                    <a z:Id="i3">
                        <edges>
                            <Edge z:Id="i4">
                                <a z:Ref="i1" />
                                <b z:Id="i5">
                                    <edges>
                                        <Edge z:Id="i6">
                                            <a z:Ref="i1" />
                                            <b z:Id="i7">
                                                <edges>
                                                    <Edge z:Id="i8">
                                                        <a z:Ref="i1" />
                                                        <b z:Ref="i3" />
                                                    </Edge>
                                                </edges>
                                            </b>
                                        </Edge>
                                    </edges>
                                </b>
                            </Edge>
                        </edges>
                    </a>
                    <b z:Ref="i5" />
                </Edge>
            </edges>
        </Face>
        <Face z:Ref="i3" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" />
        <Face z:Ref="i5" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" />
        <Face z:Ref="i7" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" />
    </faces>
</Level>

我现在搜索了几天的答案，但仍然没有得到任何结果。你能告诉我如何解决这个问题吗？

Answer 1

我认为您的问题可能是您尝试反序列化之前序列化的内容，然后将IsReference=true参数添加到属性中。

如果删除测试文件并使用更新后的代码创建一个新文件，则反序列化过程应该没有问题。

DataContractSerializer找不到引用？

1 个答案: