JaxbXmlMessageConverter.java 文件源码

@SuppressWarnings("unchecked")
@Override
public T read(HttpResponseMessage httpResponseMessage, Type expectedType) {
    Class<T> expectedClassType = (Class<T>) expectedType;

    JAXBContext context = contextOf(expectedClassType);

    try {
        Unmarshaller unmarshaller = context.createUnmarshaller();

        StreamSource source = new StreamSource(httpResponseMessage.body());

        XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(source);

        return expectedClassType.isAnnotationPresent(XmlRootElement.class) ? (T) unmarshaller.unmarshal(reader)
                : unmarshaller.unmarshal(reader, expectedClassType).getValue();

    } catch (JAXBException | XMLStreamException | FactoryConfigurationError e) {
        throw new RestifyHttpMessageReadException("Error on try read xml message", e);
    }
}