将“ XML元素”解组为字符串属性

如果<con:details>tag具有子XML元素，则details变量应该是Details类的对象，而不是String。Details类应包含<con:details>标记的子元素。

编辑：

@XmlJavaTypeAdapter可用于定义用于自定义封送处理的XMLAdapter。

故障类

@XmlRootElement
public class Fault {
    @XmlElement(required = true)
    protected String errorCode;

    @XmlElement(required = true)
    protected String reason;

    @XmlElement(name = "details")
    @XmlJavaTypeAdapter(value = DetailsHandler.class)
    protected String details;
}

DetailsHandler.class

public class DetailsHandler extends XmlAdapter<Object, String> {

    /**
     * Factory for building DOM documents.
     */
    private final DocumentBuilderFactory docBuilderFactory;
    /**
     * Factory for building transformers.
     */
    private final TransformerFactory transformerFactory;

    public DetailsHandler() {
        docBuilderFactory = DocumentBuilderFactory.newInstance();
        transformerFactory = TransformerFactory.newInstance();
    }

    @Override
    public String unmarshal(Object o) throws Exception {
        Element titleElement = (Element) o;

        // If there is no child nodes, return empty string
        if (!titleElement.hasChildNodes()) {
            return "";
        }

        // Getting the "details" child elements
        NodeList anchorElements = titleElement.getChildNodes();

        StringWriter stringWriter = new StringWriter();
        StreamResult result = new StreamResult(stringWriter);

        for (int i = 0; i < anchorElements.getLength()-1; i++) {

            // Fetching the child elements one by one
            Element anchor = (Element) anchorElements.item(i);
            // Creating a DOMSource as input for the transformer
            DOMSource source = new DOMSource(anchor);
            // Default transformer: identity tranformer (doesn't alter input)
            Transformer transformer = transformerFactory.newTransformer();
            // This is necessary to avoid the <?xml ...?> prolog
            transformer.setOutputProperty("omit-xml-declaration", "yes");
            // Transform to a StringWriter
            transformer.transform(source, result);
        }
        // Returning result as string
        return stringWriter.toString();
    }

    @Override
    public Object marshal(String s) throws Exception {
        // custom implementation if required
        return null;
    }
}

该链接可以提供更多详细信息。