Java：XML 到对象（或数组）
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Java: XML to Object (or Array)
提问by Poru
How could I convert a XML Document to a Java Object (or Array)? I readed the XML like this:
如何将 XML 文档转换为 Java 对象（或数组）？我像这样阅读了 XML：
DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dFactory.newDocumentBuilder();
Document doc = dBuilder.parse(new File("file.xml"));
doc.getDocumentElement().normalize();
Now I want that XML as Object (or Array) but how should I do this? Are there any methods or tutorials or classes out there to do that?
现在我想要那个 XML 作为对象（或数组）但是我应该怎么做？是否有任何方法、教程或课程可以做到这一点？
回答by Jigar Joshi
Use XStream.
使用XStream。
Object to XML
对象到 XML
Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));
String xml = xstream.toXML(joe);
The resulting XML looks like this:
生成的 XML 如下所示：
<person>
<firstname>Joe</firstname>
<lastname>Walnes</lastname>
<phone>
<code>123</code>
<number>1234-456</number>
</phone>
<fax>
<code>123</code>
<number>9999-999</number>
</fax>
</person>
XML to Object
XML 到对象
Person newJoe = (Person)xstream.fromXML(xml);
Also see
另见
回答by yegor256
You will need JAXB unmarshaling.
您将需要JAXB 解组。
回答by Matt Ball
回答by djna
I would look at JAX/B, which gives a way to "bind" between Java objects and XML representations.
我会看看 JAX/B，它提供了一种在 Java 对象和 XML 表示之间“绑定”的方法。
I've got a tiny write-up of doing it with Rational Eclipse-based tooling here, but there appear to be (never used them myself) straight Eclipse plugins too, for example this.
我有一个小写了Rational基于Eclipse的工具做它的位置，但似乎（从来没有使用过自己）直Eclipse插件太多，比如这个。
Indeed writing JAX/B by hand is possible, gets a bit dull for complex XML, but annotations are quite easy.
确实，手动编写 JAX/B 是可能的，对于复杂的 XML 来说有点枯燥，但是注释很容易。
回答by AlanObject
I have used Simple XMLand have found it quite easy and powerful. I am not as familiar with XStream, but Simple lets you control your XML schema using annotations which gives you a lot of freedom. The guy who writes it is always responsive on his mailing list.
我使用过Simple XML并发现它非常简单和强大。我对 XStream 不太熟悉，但 Simple 允许您使用注释来控制 XML 模式，这为您提供了很大的自由。写它的人总是在他的邮件列表上做出回应。
