Jaxb 2将不同的元素映射到同一属性 [英] Jaxb 2 mapping different element to the same property

问题描述

我想知道这是否可以在jaxb2中使用。我有一个xml可以是< element>或< element2>它永远不会在某个时候出现。它们都是String类型，我希望它映射到我的java类中的相同属性。在jaxb2中有没有办法配置？

I wonder if this is possible in jaxb2. I have a xml that can be either < element > or < element2 > it will never apear at the some time. They are both of type String and I want it to map to the same property in my java class. Is there a way in jaxb2 to configure that?

谢谢
查理

推荐答案

如果您尝试序列化回XML，会发生什么？将使用哪个元素名称？

What would happen if you tried to serialize back to XML? Which element name would be used?

假设您只需要从XML反序列化为Java，那么您可以通过注释setter方法而不是字段来执行此操作：

Assuming you only need to deserialize from XML to Java, then you can do this by annotating your setter methods instead of your fields:

public class Bean {

   private String value;

   @XmlElement(name="element")
   public void setA(String value) {
      this.value = value;
   }

   @XmlElement(name="element2")
   public void setB(String value) {
      this.value = value;
   }
}

您可能还需要添加 getA（）和 getB（）方法，以便JAXB正确识别setter。

You might also have to add getA() and getB() methods in order for JAXB to recognise the setters properly.

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