Here you can find the source of marshalAsString(Class clz, T marshalObj)
public static <T extends Object> String marshalAsString(Class clz, T marshalObj) throws JAXBException
//package com.java2s; /* ?Copyright 2012 Megam Systems?? This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version./*from w w w. j a va 2 s . c o m*/ This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.io.BufferedWriter; import java.io.StringWriter; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; public class Main { public static <T extends Object> String marshalAsString(Class clz, T marshalObj) throws JAXBException { JAXBContext context = JAXBContext.newInstance(clz); Marshaller marshaller = context.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE); StringWriter writer = new StringWriter(); marshaller.marshal(marshalObj, new BufferedWriter(writer)); return writer.toString(); } public static <T extends Object> void marshal(Class clz, T marshalObj) throws JAXBException { JAXBContext context = JAXBContext.newInstance(clz); Marshaller marshaller = context.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE); marshaller.marshal(marshalObj, System.out); } }