是否可以使用JAXB将两个或多个元素编组到一个域对象字段中？ [英] is it possible with JAXB to marshal two or more elements into one domain object field?

问题描述

我有两种不同的XML结构，我想映射到一个域对象。我正在使用MOXy的外部绑定支持，因此我可以选择动态使用哪种绑定。

I have two different XML structures I'd like to map to one domain object. I'm using MOXy's external binding support so I can choose which binding to use dynamically.

这是我的问题。我有一个类似下面的XML结构：

Here's my question. I have an XML structure like the one below:

<entity>
   <compoundID_one>foo</compoundID_one>
   <compoundID_two>bar</compoundID_two>
</entity>

我想要一个 List< String> 字段包含'foo'和'bar'

I'd like to have a single List<String> field in my domain class which would contain 'foo' and 'bar'

我试过这个：

...
<java-attributes>
    <xml-elements>
        <xml-element java-attribute="idList" name="compoundID_one" />
        <xml-element java-attribute="idList" name="compoundID_two" />
    </xml-elements>
</java-attributes>
...

但我得到 null 表示域对象中的字段。如果我省略 xml-elements 包装器，我只会得到列表中的一个复合ID。

but I just get null for the field in the domain object. If I omit the xml-elements wrapper I only get one of the compoundID's in the list.

我发现了这个问题似乎建议这应该工作。我做错了什么或有更好的方法吗？

I found this question which seems to suggest this should work. Am I doing something wrong or is there a better way to do this?

推荐答案

我刚刚绑定XML错了，它应该be：

I just had the binding XML wrong, it should be:

...
<java-attributes>
    <xml-elements java-attribute="idList">
        <xml-element name="compoundID_one" />
        <xml-element name="compoundID_two" />
    </xml-elements>
</java-attributes>
...

现在一切正常。

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