How can I remove a namespace from a generated JAXB file?

Question

Here is my code:

xsdFile:

<complexType name="Player"> <sequence> <element name="Login" type="string"></element> <element name="Passwd" type="string"></element> </sequence> </complexType> <element name="Player" type="tns:Player"></element> 

Build.xml:

  <exec executable="${javahome}/bin/xjc" > <arg value="-extension" /> <arg value="-b" /> <arg value="binding.xml" /> <arg value="-d" /> <arg value="${sources}" /> <arg value="-p" /> <arg value="metier" /> <arg value="Player.xsd" /> </exec> </target> 

binding.xml:

 <jxb:bindings xmlns:jxb="http://java.sun.com/xml/ns/jaxb" xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc" jxb:extensionBindingPrefixes="xjc" elementFormDefault="qualified" attributeFormDefault="unqualified" version="2.1"> <jxb:globalBindings> <xjc:simple /> <xjc:serializable/> </jxb:globalBindings> 

And the finale:

JAXBContext context = JAXBContext.newInstance(Player.class,ObjectFactory.class); Unmarshaller decodeur = context.createUnmarshaller();

i add "xjc: simple" to have @XMLRootElement , but an exception is thrown: javax.xml.bind.UnmarshalException: unexpected element (uri: "http: // www. example.org/Player"

This did not work correctly because I got this: @XmlRootElement (name = "Player", namespace = "http://www.example.org/Player" )

Instead simply: @XmlRootElement (name = "Player")

How can I remove this "namespace"?

thanks

Answer 1

I just delete ObjectFactory.class and it works. New code:

 JAXBContext context = JAXBContext.newInstance(Player.class); Unmarshaller decodeur = context.createUnmarshaller(); 

Answer 2

If your XML schema indicates that the corresponding XML documents should have a namespace, then JAXB will generate a Java model with the expected qualification of the namespace. Below I will describe the way you could use the StAX parser to trick JAXB into believing that it parses a document with a namespace request:

Player

 import javax.xml.bind.annotation.XmlElement; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement(name="Player", namespace="http://www.example.org/Player") public class Player { private String login; private String passwd; @XmlElement(name="Login", namespace="http://www.example.org/Player") public String getLogin() { return login; } public void setLogin(String login) { this.login = login; } @XmlElement(name="Passwd", namespace="http://www.example.org/Player") public String getPasswd() { return passwd; } public void setPasswd(String passwd) { this.passwd = passwd; } } 

NamespaceDelegate

We will create an implementation of StreamReaderDelegate . This delegate will report that the namespace for all events of the element will be "http://www.example.org/Player" . Note. This trick assumes that all of your elements have the same namespace URI.

 import javax.xml.stream.XMLStreamReader; import javax.xml.stream.util.StreamReaderDelegate; public class NamespaceDelegate extends StreamReaderDelegate { private static String NAMESPACE = "http://www.example.org/Player"; public NamespaceDelegate(XMLStreamReader xsr) { super(xsr); } @Override public String getNamespaceURI() { return NAMESPACE; } } 

Demo

 import java.io.FileInputStream; import javax.xml.bind.JAXBContext; import javax.xml.bind.Marshaller; import javax.xml.bind.Unmarshaller; import javax.xml.stream.XMLInputFactory; import javax.xml.stream.XMLStreamReader; import javax.xml.stream.util.StreamReaderDelegate; public class Demo { public static void main(String[] args) throws Exception { JAXBContext jc = JAXBContext.newInstance(Player.class); FileInputStream xmlStream = new FileInputStream("input.xml"); XMLInputFactory xif = XMLInputFactory.newFactory(); XMLStreamReader xsr = xif.createXMLStreamReader(xmlStream); StreamReaderDelegate srd = new NamespaceDelegate(xsr); Unmarshaller unmarshaller = jc.createUnmarshaller(); Player player = (Player) unmarshaller.unmarshal(srd); Marshaller marshaller = jc.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); marshaller.marshal(player, System.out); } } 

Input.xml

 <?xml version="1.0" encoding="UTF-8"?> <Player> <Login>FOO</Login> <Passwd>BAR</Passwd> </Player>