Java tutorial
import java.io.StringWriter; import java.util.Hashtable; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; import javax.xml.bind.annotation.XmlRootElement; public class Main { public static void main(String[] args) throws Exception { JAXBContext jc = JAXBContext.newInstance(Wrapper.class); Wrapper wrapper = new Wrapper(); Hashtable<String, String> hashtable = new Hashtable<String, String>(); hashtable.put("foo", "A"); hashtable.put("bar", "B"); wrapper.setHashtable(hashtable); System.out.println(objectToXml(jc, wrapper)); } public static String objectToXml(JAXBContext jaxbContext, Object object) throws JAXBException { StringWriter writerTo = new StringWriter(); Marshaller marshaller = jaxbContext.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); marshaller.marshal(object, writerTo); return writerTo.toString(); } @XmlRootElement public static class Wrapper { private Hashtable<String, String> hashtable; public Hashtable<String, String> getHashtable() { return hashtable; } public void setHashtable(Hashtable<String, String> hashtable) { this.hashtable = hashtable; } } }