Java tutorial
import javax.xml.bind.JAXBContext; 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(Response.class); Response response = new Response(); response.setMessage("1 < 2"); Marshaller marshaller = jc.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); marshaller.marshal(response, System.out); } @XmlRootElement public static class Response { private String message; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } } }