• Java
    • JAXB Tutorial
      • What is JAXB
      • JAXB Marshalling Example
      • JAXB UnMarshalling Example
  • Spring Tutorial
    • Spring Core Tutorial
    • Spring MVC Tutorial
      • Quick Start
        • Flow Diagram
        • Hello World Example
        • Form Handling Example
      • Handler Mapping
        • BeanNameUrlHandlerMapping
        • ControllerClassNameHandlerMapping
        • SimpleUrlHandlerMapping
      • Validation & Exception Handling
        • Validation+Annotations
        • Validation+ResourceBundle
        • @ExceptionHandler
        • @ControllerAdvice
        • Custom Exception Handling
      • Form Tag Library
        • Textbox Example
        • TextArea Example
        • Password Example
        • Dropdown Box Example
        • Checkboxes Example
        • Radiobuttons Example
        • HiddenValue Example
      • Misc
        • Change Config file name
    • Spring Boot Tutorial
  • Hibernate Tutorial
  • REST Tutorial
    • JAX-RS REST @PathParam Example
    • JAX-RS REST @QueryParam Example
    • JAX-RS REST @DefaultValue Example
    • JAX-RS REST @Context Example
    • JAX-RS REST @MatrixParam Example
    • JAX-RS REST @FormParam Example
    • JAX-RS REST @Produces Example
    • JAX-RS REST @Consumes Example
    • JAX-RS REST @Produces both XML and JSON Example
    • JAX-RS REST @Consumes both XML and JSON Example
  • Miscellaneous
    • JSON Parser
      • Read a JSON file
      • Write JSON object to File
      • Read / Write JSON using GSON
      • Java Object to JSON using JAXB
    • CSV Parser
      • Read / Write CSV file
      • Read/Parse/Write CSV File – OpenCSV
      • Export data into a CSV File
      • CsvToBean and BeanToCsv – OpenCSV

JavaInterviewPoint

Java Development Tutorials

JAXB UnMarshalling Example – Convert XML to Java Object

December 10, 2015 by javainterviewpoint Leave a Comment

Previously we have learnt how to convert a Java Object into XML using JAXB Marshalling Technique. Now let’s learn the vice-versa converting XML back to Java Object

JAXB Dependency

We will be requiring the below two jars to be put in the classpath for performing the unmarshalling operation.

  1. jaxb-api.jar
  2. jaxb-impl.jar

Student.java

Our Student class is a simple POJO class containing three properties name,age,id. We will be using 2 main annotations namely @XmlRootElement(Maps Class to XML element) and @XmlElement(Maps Bean property to XML element).

package com.javainterviewpoint.jaxb;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Student 
{
    String name;
    String age;
    int id;
    public String getName() {
        return name;
    }
    @XmlElement
    public void setName(String name) {
        this.name = name;
    }
    public String getAge() {
        return age;
    }
    @XmlElement    
    public void setAge(String age) {
        this.age = age;
    }
    public int getId() {
        return id;
    }
    @XmlElement
    public void setId(int id) {
        this.id = id;
    }
}

UnMarshal_Example.java

We will be performing the below steps to convert XML into Object

  • JaxbContext is created by passing the class reference of the student class.
  • Call the createUnmarshaller() method of the context above created, to get the object of the Unmarshaller.
  • unmarshal() method is called which converts the XML into Student object.
package com.javainterviewpoint.jaxb;

import java.io.File;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

public class UnMarshal_Example 
{
    public static void main(String args[])
    {
        try 
        {
            //Create jaxbContext
            JAXBContext jaxbContext = JAXBContext.newInstance(Student.class);
            //Getting UnMarshaller object
            Unmarshaller jaxbUnMarshaller = jaxbContext.createUnmarshaller();
            //Converting Student.xml to st object
            Student st = (Student)jaxbUnMarshaller.unmarshal(new File("D:\\JIP\\Student.xml"));
            //Print the elements of student object "st"
            System.out.println(" Student Id   : "+st.getId());
            System.out.println(" Student Name : "+st.getName());
            System.out.println(" Student Age  : "+st.getAge());
        } catch (JAXBException e) 
        {
            e.printStackTrace();
        }
    }
}

Output :

 Student Id   : 12
 Student Name : JavaInterviewPoint
 Student Age  : 11

Other interesting articles which you may like …

  • Jackson 2 JSON Parser – Convert JSON to/from Java Object
  • How to Convert JSON to / from Java Map using JACKSON
  • Jackson Tree Model Example – JsonNode
  • Jackson Streaming API Example | Read and Write JSON
  • Jackson JSON Example | ObjectMapper and @JSONView
  • How to Parse JSON to/from Java Object using Boon JSON Parser
  • How to Read and Write JSON using GSON
  • How to write JSON object to File in Java?
  • How to read JSON file in Java – JSONObject and JSONArray
  • Jersey Jackson JSON Tutorial
  • Spring REST Hello World Example – JSON and XML responses
  • How to Convert Java Object to JSON using JAXB
  • JAX-RS REST @Consumes both XML and JSON Example
  • JAX-RS REST @Produces both XML and JSON Example

Filed Under: Core Java, J2EE, Java Tagged With: JAXB, JAXB Tutorial, UnMarshal, UnMarshalling Example

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Java Basics

  • JVM Architecture
  • Object in Java
  • Class in Java
  • How to Set Classpath for Java in Windows
  • Components of JDK
  • Decompiling a class file
  • Use of Class.forName in java
  • Use Class.forName in SQL JDBC

Oops Concepts

  • Inheritance in Java
  • Types of Inheritance in Java
  • Single Inheritance in Java
  • Multiple Inheritance in Java
  • Multilevel Inheritance in Java
  • Hierarchical Inheritance in Java
  • Hybrid Inheritance in Java
  • Polymorphism in Java – Method Overloading and Overriding
  • Types of Polymorphism in java
  • Method Overriding in Java
  • Can we Overload static methods in Java
  • Can we Override static methods in Java
  • Java Constructor Overloading
  • Java Method Overloading Example
  • Encapsulation in Java with Example
  • Constructor in Java
  • Constructor in an Interface?
  • Parameterized Constructor in Java
  • Constructor Chaining with example
  • What is the use of a Private Constructors in Java
  • Interface in Java
  • What is Marker Interface
  • Abstract Class in Java

Java Keywords

  • Java this keyword
  • Java super keyword
  • Final Keyword in Java
  • static Keyword in Java
  • Static Import
  • Transient Keyword

Miscellaneous

  • newInstance() method
  • How does Hashmap works internally in Java
  • Java Ternary operator
  • How System.out.println() really work?
  • Autoboxing and Unboxing Examples
  • Serialization and Deserialization in Java with Example
  • Generate SerialVersionUID in Java
  • How to make a class Immutable in Java
  • Differences betwen HashMap and Hashtable
  • Difference between Enumeration and Iterator ?
  • Difference between fail-fast and fail-safe Iterator
  • Difference Between Interface and Abstract Class in Java
  • Difference between equals() and ==
  • Sort Objects in a ArrayList using Java Comparable Interface
  • Sort Objects in a ArrayList using Java Comparator

Follow

  • Coding Utils

Useful Links

  • Spring 4.1.x Documentation
  • Spring 3.2.x Documentation
  • Spring 2.5.x Documentation
  • Java 6 API
  • Java 7 API
  • Java 8 API
  • Java EE 5 Tutorial
  • Java EE 6 Tutorial
  • Java EE 7 Tutorial
  • Maven Repository
  • Hibernate ORM

About JavaInterviewPoint

javainterviewpoint.com is a tech blog dedicated to all Java/J2EE developers and Web Developers. We publish useful tutorials on Java, J2EE and all latest frameworks.

All examples and tutorials posted here are very well tested in our development environment.

Connect with us on Facebook | Privacy Policy | Sitemap

Copyright ©2023 · Java Interview Point - All Rights Are Reserved ·