我想要对大型 XML 进行部分解组。
XML 具有以下结构:
<Records>
<Contract>
...
</Contract>
<Contract>
...
</Contract>
...
<Contract>
...
</Contract>
<Contract>
...
</Contract>
</Records>
以及使用XJC生成的结果类:
- Records
|- Contract
如果我跟随these https://stackoverflow.com/questions/6484681/jaxb-partial-unmarshalling-elements-without-xmlrootelement(来自 jaxb-ri 的示例),我收到错误:
Exception in thread "main" javax.xml.bind.UnmarshalException: unexpected element (uri:"http://somedomain.com", local:"Contract"). Expected elements are <{http://somedomain.com}Records>
如果我使用:
<jaxb:globalBindings localScoping="toplevel"/>
我收到错误:
org.xml.sax.SAXParseException: A class/interface with the same name "com.my.package.Text" is already in use. Use a class customization to resolve this conflict.
但我需要改变很多课程。这不是解决方案。
/**
* User: r.ibragimov
* Date: 04.06.13
*/
public class PartialJAXB1 {
public static void main(String[] args) throws JAXBException, XMLStreamException, FileNotFoundException {
final QName qName = new QName("http://www.domain.com","Contract");
InputStream inputStream = new FileInputStream(new File("c:\\test.xml"));
// create xml event reader for input stream
XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(inputStream);
// initialize jaxb
JAXBContext context = JAXBContext.newInstance(Records.class);
Unmarshaller unmarshaller = context.createUnmarshaller();
XMLEvent e = null;
// loop though the xml stream
while( (e = xmlEventReader.peek()) != null ) {
// check the event is a Document start element
if(e.isStartElement() && ((StartElement)e).getName().equals(qName)) {
// unmarshall the document
Records.Contract contract = unmarshaller.unmarshal(xmlEventReader, Records.Contract.class).getValue();
System.out.println(contract);
} else {
xmlEventReader.next();
}
}
}
}
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