Java tutorial
//package com.java2s; import java.io.*; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; public class Main { public static byte[] serializerBytes(Object xmlObj) throws JAXBException { JAXBContext context = JAXBContext.newInstance(xmlObj.getClass()); Marshaller marshaller = context.createMarshaller(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); marshaller.marshal(xmlObj, baos); return baos.toByteArray(); } }