Question

我有一个扩展MarshalByRefObject的远程对象。我无法在其应用程序域本身序列化该对象。原因是将状态保持在磁盘上。

我收到以下错误：

System.Runtime.Serialization.InvalidDataContractException：类型'System.Runtime.Remoting.ServerIdentity'无法序列化。请考虑使用DataContractAttribute属性对其进行标记，并使用DataMemberAttribute属性标记要序列化的所有成员。如果类型是集合，请考虑使用CollectionDataContractAttribute对其进行标记。有关其他受支持的类型，请参阅Microsoft .NET Framework文档。 at System.Runtime.Serialization.DataContract.DataContractCriticalHelper.ThrowInvalidDataContractException（String message，Type type）在System.Runtime.Serialization.DataContract.DataContractCriticalHelper.CreateDataContract（Int32 id，RuntimeTypeHandle typeHandle，Type type）在System.Runtime.Serialization.DataContract.DataContractCriticalHelper.GetDataContractSkipValidation（Int32 id，RuntimeTypeHandle typeHandle，Type type）在System.Runtime.Serialization.XmlObjectSerializerContext.GetDataContract（RuntimeTypeHandle typeHandle，Type type）在System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType（XmlWriterDelegator xmlWriter，Object obj，RuntimeTypeHandle objectTypeHandle，Type objectType，Int32 declaredTypeID，RuntimeTypeHandle declaredTypeHandle，Type declaredType）在System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize（XmlWriterDelegator xmlWriter，Object obj，Boolean isDeclaredType，Boolean writeXsiType，Int32 declaredTypeID，RuntimeTypeHandle declaredTypeHandle）在System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference（XmlWriterDelegator xmlWriter，Object obj，Boolean isDeclaredType，Boolean writeXsiType，Int32 declaredTypeID，RuntimeTypeHandle declaredTypeHandle）

我的代码看起来像这样

[DataContract]
public class MyClass : MarshalByRefObject
{
    [DataMember]
    private int a;

    [DataMember]
    private bool b;

    public MyClass()
    {
        serializer = new DataContractSerializer(typeof(MyClass));
    }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2202:Do not dispose objects multiple times")]
    public virtual void SaveToFile(string filepath)
    {
        // Method to save our object to a file.

        // If there is already a save in progress, bail (thread safety check)
        if (SaveInProgress)
        {
            return;
        }

        SaveInProgress = true;

        Stream stream = null;
        XmlWriter xw = null;
        try
        {
            stream = new FileStream(filepath, FileMode.Create, FileAccess.Write);
            xw = XmlWriter.Create(stream, new XmlWriterSettings { Indent = true, Encoding = Encoding.UTF8 });
            using (XmlDictionaryWriter writer = XmlDictionaryWriter.CreateDictionaryWriter(xw))
            {
                lock (LockObject)
                {
                    serializer.WriteObject(writer, this);
                }
            }
        }
        finally
        {
            if (stream != null)
            {
                stream.Dispose();
            }

            if (xw != null)
            {
                xw.Dispose();
            }
        }

        SaveInProgress = false;
    }
}

DataContractSerializer无法序列化远程对象

0 个答案: