Using JAXB in Java EE to implement the conversion of the __java and XML documents to each other

JAXB (Java architecture for XML Binding) is an industry standard and is a technology that can generate Java classes from XML schemas.

You can allow Java objects and XML documents to be converted to each other.

Let's say there's a pojo.

Package com.xyz;

Import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Boy
{
String name = "John";

Public String GetName ()
{
return name;
}

public void SetName (String name)
{
THIS.name = name;
}
}

The annotation @xmlrootelement above class indicates that boy this class is the root element of the XML document

Then write a unit test class test

Package org.test;

Import Java.io.File;
Import java.io.FileNotFoundException;
Import Java.io.FileOutputStream;
Import Java.io.StringReader;

Import Javax.xml.bind.JAXBContext;
Import javax.xml.bind.JAXBException;
Import Javax.xml.bind.Marshaller;
Import Javax.xml.bind.Unmarshaller;
Import Javax.xml.transform.stream.StreamSource;

Import Org.junit.Test;

Import Com.xyz.Boy;

public class Jaxbtest
{
@Test
public void Jaxbtest () throws Jaxbexception, FileNotFoundException
{
Jaxbcontext context = jaxbcontext.newinstance (Boy.class);

Marshaller Marshaller = Context.createmarshaller ();

Boy Boy = new Boy ();

Marshaller.marshal (boy,new fileoutputstream ("Welcome.xml"));


System.out.println ("==================================");

Unmarshaller Unmarshaller = Context.createunmarshaller ();

Boy boy2 = (Boy) unmarshaller.unmarshal (new Streamsource) (New File ("Welcome.xml"));

System.out.println (Boy2.getname ());

}
}
Note that the Marshaller Unmarshaller is two core classes. XML documents and Java objects can be converted to each other.