Java tutorial
import java.io.FileInputStream; import javax.xml.stream.XMLEventReader; import javax.xml.stream.XMLEventWriter; import javax.xml.stream.XMLInputFactory; import javax.xml.stream.XMLOutputFactory; import javax.xml.stream.XMLResolver; import javax.xml.stream.XMLStreamException; public class Main { public static void main(String[] args) throws Exception { XMLInputFactory inputFactory = XMLInputFactory.newInstance(); inputFactory.setXMLResolver(new XMLResolver() { public Object resolveEntity(String publicID, String systemID, String baseURI, String namespace) throws XMLStreamException { System.out.println(systemID); return null; } }); XMLEventReader reader = inputFactory.createXMLEventReader(new FileInputStream("dtd.xml")); XMLEventWriter writer = XMLOutputFactory.newInstance().createXMLEventWriter(System.out); writer.add(reader); writer.flush(); } }