如何解开xml流。获取空值

Question

Answer 1

也许您忘记在最后添加getValue，因为您获得了一个JaxBelement。

public class XmlManager<T> {
    private final Class<T> clazz;
    private final JAXBContext jaxbContext;
    public XmlManager(Class<T> clazz) throws JAXBException {
        this.clazz = clazz;
        this.jaxbContext = JAXBContext.newInstance(clazz);
    }
    public T unmarshal(String xml) throws JAXBException {
        Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
        return jaxbUnmarshaller.unmarshal(new StreamSource(new StringReader(xml)), clazz).getValue();
    }
}