Bean XML deserialization

With this example we are going to demonstrate how to deserialize a java Bean using the XMLDecoder. The XMLDecoder class is used to read XML documents created using the XMLEncoder and is used just like the ObjectInputStream. In short, to deserialize a java Bean using the XMLDecoder you should:

  • Create an xml representation of the java bean.
  • Create a simple class, like Bean class in the example. It has two String properties and getters and setters for the properties. It has the same properties as the xml doument.
  • Create a new XMLDecoder, with a new BufferedInputStream that is created reading a new FileInputStream by opening a connection to the xml file.
  • Use the readObject() API method of XMLDecoder to read the next object from the underlying input stream. The result is an object of Bean class.
  • Use close() API method to close the input stream associated with this stream.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;

import java.beans.XMLDecoder;

public class BeanXMLDeserialization {
	public static void main(String[] args) throws Exception {
		XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(new FileInputStream("in.xml")));

		// Deserialize object from XML
		Bean bean = (Bean) decoder.readObject();
		System.out.println("Propert1 value: " + bean.getProperty1());
		System.out.println("Propert2 value: " + bean.getProperty2());

	public static class Bean {
		// Property property1
		private String property1;
	    // Property property2
		private int property2;
		public String getProperty1() {
			return property1;
		public void setProperty1(String property1) {
			this.property1 = property1;
		public int getProperty2() {
			return property2;
		public void setProperty2(int property2) {
			this.property2 = property2;



Propert1 value: value1
Propert2 value: 2


<?xml version="1.0" encoding="UTF-8"?> 
<java version="1.6.0_05" class="java.beans.XMLDecoder"> 
 <object class="com.javacodegeeks.snippets.core.BeanXMLDeserialization$Bean"> 
  <void property="property1"> 
  <void property="property2"> 

This was an example of how to deserialize a java Bean using the XMLDecoder in Java.

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Byron Kiourtzoglou

Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.
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