java - Jaxb Marshalling for newbies -
all i'm trying achieve marshal xml file
contacto.java
import javax.xml.bind.annotation.xmlelement; import javax.xml.bind.annotation.xmlrootelement; @xmlrootelement public class contacto { @xmlelement public string nombre; @xmlelement public string telefono; @xmlelement public string email; @xmlelement public string direccion; } actividad.java
import java.util.calendar; import javax.xml.bind.annotation.xmlattribute; import javax.xml.bind.annotation.xmlelement; import javax.xml.bind.annotation.xmlrootelement; @xmlrootelement public class actividad { @xmlelement public calendar fecha; @xmlelement public string lugar; @xmlelement public string motivo; @xmlelement public contacto participante; } agenda.java
import javax.xml.bind.annotation.xmlattribute; import javax.xml.bind.annotation.xmlelement; import javax.xml.bind.annotation.xmlrootelement; @xmlrootelement public class agenda { @xmlelement public string nombrepropietario; @xmlelement public actividad actividad; @xmlelement public contacto contacto; } this xml schema generated using jaxb
<?xml version="1.0" encoding="utf-8" standalone="yes"?> <xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/xmlschema"> <xs:element name="actividad" type="actividad"/> <xs:element name="agenda" type="agenda"/> <xs:element name="contacto" type="contacto"/> <xs:complextype name="actividad"> <xs:sequence> <xs:element name="fecha" type="xs:datetime" minoccurs="0"/> <xs:element name="lugar" type="xs:string" minoccurs="0"/> <xs:element name="motivo" type="xs:string" minoccurs="0"/> <xs:element name="participante" type="contacto" minoccurs="0"/> </xs:sequence> </xs:complextype> <xs:complextype name="contacto"> <xs:sequence> <xs:element name="nombre" type="xs:string" minoccurs="0"/> <xs:element name="telefono" type="xs:string" minoccurs="0"/> <xs:element name="email" type="xs:string" minoccurs="0"/> <xs:element name="direccion" type="xs:string" minoccurs="0"/> </xs:sequence> </xs:complextype> <xs:complextype name="agenda"> <xs:sequence> <xs:element name="nombrepropietario" type="xs:string" minoccurs="0"/> <xs:element ref="actividad" minoccurs="0"/> <xs:element ref="contacto" minoccurs="0"/> </xs:sequence> </xs:complextype> <xs:complextype name="principal"> <xs:sequence/> </xs:complextype> </xs:schema> and class try instantiate of other classes , marshall data xml file:
import java.io.file; import javax.xml.bind.jaxbcontext; import javax.xml.bind.jaxbexception; import javax.xml.bind.marshaller; import java.util.calendar; import java.io.outputstream; import java.io.fileoutputstream; import java.io.fileinputstream; import java.lang.object; import java.io.ioexception; public class principal { public static void main(string[] args) { contacto contacto = new contacto(); contacto.nombre = "john doe"; contacto.telefono = "911"; contacto.email = "johndoe@gmail.com"; contacto.direccion = "742 evergreen terrace"; actividad actividad = new actividad(); calendar cal = calendar.getinstance(); cal.set(2013,04,17,15,30,00); actividad.fecha = cal; actividad.lugar = "general pico"; actividad.motivo = "reunion"; actividad.participante = contacto; agenda agenda = new agenda(); agenda.nombrepropietario = "john smith"; agenda.actividad = actividad; agenda.contacto = contacto; try { file file = new file("archivo.xml"); jaxbcontext jaxbcontext = jaxbcontext.newinstance(contacto.class); marshaller jaxbmarshaller = jaxbcontext.createmarshaller(); // salida jaxbmarshaller.setproperty(marshaller.jaxb_formatted_output, true); outputstream os = new fileoutputstream(file); jaxbmarshaller.marshal(contacto, os); jaxbmarshaller.marshal(contacto, system.out); /* jaxbmarshaller.marshal(actividad, os); jaxbmarshaller.marshal(actividad, system.out); jaxbmarshaller.marshal(agenda, os); jaxbmarshaller.marshal(agenda, system.out); */ } catch (exception e) { //jaxbexception e e.printstacktrace(); } } } the problem never generates .xml file. need solve small issue, know face problem not in best way, i'm stucked here.
thanks in advance!
update #2
double check java.io.file being created think is. can check follows:
file file = new file("archivo.xml"); system.out.println(file.getabsolutepath()); update #1
you may find marshalling directly java.io.file directly:
you need close fileoutputstream after marshal operation.
fileoutputstream out = new fileoutputstream("archivo.xml"); marshaller.marshal(config, out); out.close(); btw don't need @xmlelement annotations default public properties , fields treated mapped default.
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