Convert XML To JSON Using Java

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Here you can know how to add JSON support to any Java program. and it can convert XML into JSON object.first you can add this Dependency to your Java Project:

<dependency>
        <groupId>net.sf.json-lib</groupId>
        <artifactId>json-lib</artifactId>
        <version>2.3</version>
        <type>jar</type>
        <classifier>jdk15</classifier>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-io</artifactId>
        <version>1.3.2</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>xom</groupId>
        <artifactId>xom</artifactId>
        <version>1.1</version>
    </dependency>
  </dependencies>

- Now you can add this XML in your classpath in a file named sample-xml.xml:

<?xml version="1.0" encoding="UTF-8"?>
<important-data certified="true" processed="true">
  <timestamp>232423423423</timestamp>
  <authors>
    <author>
      <firstName>Tim</firstName>
      <lastName>Leary</lastName>
    </author>
  </authors>
  <title>Flashbacks</title>
  <shippingWeight>1.4 pounds</shippingWeight>
  <isbn>978-0874778700</isbn>
</important-data>

Load the resource from the classpath and parse this XML into JSON as follows:

package com.discursive.answers;

import java.io.InputStream;

import net.sf.json.JSON;
import net.sf.json.xml.XMLSerializer;

import org.apache.commons.io.IOUtils;

public class ConvertXMLtoJSON {

        public static void main(String[] args) throws Exception {
                InputStream is =
                        ConvertXMLtoJSON.class.getResourceAsStream("sample-xml.xml");
                String xml = IOUtils.toString(is);
               
                XMLSerializer xmlSerializer = new XMLSerializer();
                JSON json = xmlSerializer.read( xml ); 
                System.out.println( json.toString(2) );
        }
}

 This should produce the following JSON output:

{
  "@certified": "true",
  "@processed": "true",
  "timestamp": "232423423423",
  "authors": [  {
    "firstName": "Tim",
    "lastName": "Leary"
  }],
  "title": "Flashbacks",
  "shippingWeight": "1.4 pounds",
  "isbn": "978-0874778700"
}