Adding namespaces to root element of xml using jaxb

Question

I am creating an xml file whose root elemenet structure shuould be like:

   <RootElement xmlns="http://www.mysite.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.mysite.com/abc.xsd"> 

i created package-info.java class but i can get only one namespace by writing this code:

@XmlSchema(         namespace = "http://www.mysite.com",         elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED) package myproject.myapp; import javax.xml.bind.annotation.XmlSchema; 

Any idea?

Answer 1

Below is some demo code that will produce the XML you are looking for. You can use the Marshaller.JAXB_SCHEMA_LOCATION property to specify the schemaLocation this will cause the http://www.w3.org/2001/XMLSchema-instance namespace to be automatically declared.

Demo

package myproject.myapp;  import javax.xml.bind.*;  public class Demo {      public static void main(String[] args) throws Exception {         JAXBContext jc = JAXBContext.newInstance(RootElement.class);          RootElement rootElement = new RootElement();          Marshaller marshaller = jc.createMarshaller();         marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);         marshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION, "http://www.mysite.com/abc.xsd");         marshaller.marshal(rootElement, System.out);     }  } 

Output

Below is the output from running the demo code.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <RootElement xmlns="http://www.mysite.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.mysite.com/abc.xsd"/> 

package-info

This is the package-info class from your question.

@XmlSchema(     namespace = "http://www.mysite.com",     elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED ) package myproject.myapp;  import javax.xml.bind.annotation.*; 

RootElement

Below is a simplified version of your domain model:

package myproject.myapp;  import javax.xml.bind.annotation.XmlRootElement;  @XmlRootElement(name="RootElement") public class RootElement {  }