从多个类生成XML

Question

我正在尝试使用xsd.exe工具生成的类来生成XML文档。

所需的结构如下：

 <sh:StandardBusinessDocument xmlns:eanucc="urn:ean.ucc:2" xmlns:order="urn:ean.ucc:order:2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader ../Schemas/sbdh/StandardBusinessDocumentHeader.xsd urn:ean.ucc:2 ../Schemas/OrderProxy.xsd" xmlns:sh="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader">
  <sh:StandardBusinessDocumentHeader>
    <sh:HeaderVersion>2.2</sh:HeaderVersion>    
  </sh:StandardBusinessDocumentHeader>
  <eanucc:message>
    <entityIdentification>
        <uniqueCreatorIdentification>2222</uniqueCreatorIdentification>
    </entityIdentification> 
  </eanucc:message>
</sh:StandardBusinessDocument> 

但是我只能做到这一点：

<sh:StandardBusinessDocument xmlns:eanucc="urn:ean.ucc:2" xmlns:order="urn:ean.ucc:order:2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader ../Schemas/sbdh/StandardBusinessDocumentHeader.xsd urn:ean.ucc:2 ../Schemas/OrderProxy.xsd" xmlns:sh="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader">
  <sh:StandardBusinessDocumentHeader>
    <sh:HeaderVersion>2.2</sh:HeaderVersion>    
  </sh:StandardBusinessDocumentHeader>
  <sh:message>
    <entityIdentification>
        <uniqueCreatorIdentification>2222</uniqueCreatorIdentification>
    </entityIdentification> 
  </sh:message>
</sh:StandardBusinessDocument> 

我该如何为根节点的子节点创建不同的节点前缀？在生成的类中，我已经使用XmlTypeAttribute和XmlRootAttribute添加了命名空间，但是第二个子属性将会被忽略。我的类属性如下：

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader", IsNullable = true)]
public class StandardBusinessDocument
{
   private StandardBusinessDocumentStandardBusinessDocumentHeader standardBusinessDocumentHeaderField;

   private StandardBusinessDocumentMessage messageField;
} 

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader", IsNullable = false)]
public class StandardBusinessDocumentStandardBusinessDocumentHeader : StandardBusinessDocument
{
}

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "urn:ean.ucc:2")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "urn:ean.ucc:2", IsNullable = true)]
public class StandardBusinessDocumentMessage
{
}

有什么想法，为什么第二个子元素（StandardBusinessDocumentMessage）的装饰被忽略了？

- Andrew

Answer 1

首先，在检索messageField属性的映射中指定命名空间（我假设有一个）：

[XmlElement(Namespace = "urn:ean.ucc:2")]
public StandardBusinessDocumentMessage Message { get; set; }

接下来，在序列化对象时，创建一个XmlSerializerNamespaces类的实例，将前缀和命名空间添加到其中，并在使用以XmlSerializerNamespaces对象为参数的Serialize()重载时使用它：

  XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
  ns.Add("eanucc", "urn:ean.ucc:2");
  ns.Add("sh", "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader");
  XmlSerializer xs = new XmlSerializer(typeof(StandardBusinessDocument));
  xs.Serialize(someStream, someInstance, ns);

- Willem van Rumpt

---

太好了 - 谢谢。添加XmlElement属性解决了问题。 - Andrew