Question

查看here中的以下代码它是关于在wcf中序列化时在数据提取（对象模型，对象图，域模型）中保留循环引用。

class ReferencePreservingDataContractSerializerOperationBehavior
      :DataContractSerializerOperationBehavior
    {
        public ReferencePreservingDataContractSerializerOperationBehavior(
          OperationDescription operationDescription)
          : base(operationDescription) { }

        public override XmlObjectSerializer CreateSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }

        private static XmlObjectSerializer CreateDataContractSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }

        public override XmlObjectSerializer CreateSerializer(
          Type type, XmlDictionaryString name, XmlDictionaryString ns,
          IList<Type> knownTypes)
        {
            return new DataContractSerializer(type, name, ns, knownTypes,
                0x7FFF /*maxItemsInObjectGraph*/,
                false/*ignoreExtensionDataObject*/,
                true/*preserveObjectReferences*/,
                null/*dataContractSurrogate*/);
        }
    }

不是CreateDataContractSerializer生成无限循环（stackoverflow） - 因此也是前面的CreateSerializer方法吗？

private static XmlObjectSerializer CreateDataContractSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }

现在可能没有使用这些方法？我在这里缺少什么？

Answer 1

确实如此。它工作的事实表明当前只调用了最后一个重载。由于涉及不同的参数，也许最好丢失静态方法（这没有帮助）：

public override XmlObjectSerializer CreateSerializer(
  Type type, string name, string ns, IList<Type> knownTypes)
{
    return new DataContractSerializer(type, name, ns, knownTypes,
        0x7FFF /*maxItemsInObjectGraph*/,
        false/*ignoreExtensionDataObject*/,
        true/*preserveObjectReferences*/,
        null/*dataContractSurrogate*/);
}

public override XmlObjectSerializer CreateSerializer(
  Type type, XmlDictionaryString name, XmlDictionaryString ns,
  IList<Type> knownTypes)
{
    return new DataContractSerializer(type, name, ns, knownTypes,
        0x7FFF /*maxItemsInObjectGraph*/,
        false/*ignoreExtensionDataObject*/,
        true/*preserveObjectReferences*/,
        null/*dataContractSurrogate*/);
}

序列化代码示例中的无限循环

1 个答案: