Java StAX Parser – StAX Iterator API Write Example

In this tutorial we are going to see about how to write XML document using Java StAX parser Iterator API.
Player.java

package com.javatutorialcorner.stax;

public class Player {
 private int rank;
 private String name;
 private String team;
 private int matches;
 private int runs;
 private int ratings;
 
 public int getRank() {
  return rank;
 }
 public void setRank(int rank) {
  this.rank = rank;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getTeam() {
  return team;
 }
 public void setTeam(String team) {
  this.team = team;
 }
 public int getMatches() {
  return matches;
 }
 public void setMatches(int matches) {
  this.matches = matches;
 }
 public int getRuns() {
  return runs;
 }
 public void setRuns(int runs) {
  this.runs = runs;
 }
 public int getRatings() {
  return ratings;
 }
 public void setRatings(int ratings) {
  this.ratings = ratings;
 }

}

StAXEventWriteExample.java

package com.javatutorialcorner.stax;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.Map;

import javax.xml.stream.XMLEventFactory;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartDocument;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;

public class StAXEventWriteExample {

 public static void main(String[] args) {
  String filePath = "C:/jtc/cricket1.xml";
  Map<String,Player> elementsMap = new HashMap<String, Player>();
  Player player1 = new Player();
  player1.setName("AB de Villiers");
  player1.setRank(1);
  player1.setRatings(898);
  player1.setMatches(184);
  player1.setRuns(7777);
  elementsMap.put("player1", player1);
  
  Player player2 = new Player();
  player2.setName("Hashim Amla");
  player2.setRank(2);
  player2.setRatings(849);
  player2.setMatches(112);
  player2.setRuns(5654);
  elementsMap.put("player2", player2);
  
  Player player3 = new Player();
  player3.setName("Kumar Sangakkara");
  player3.setRank(3);
  player3.setRatings(849);
  player3.setMatches(401);
  player3.setRuns(13961);
  elementsMap.put("player3", player3);
  
  Player player4 = new Player();
  player4.setName("Virat Kohli");
  player4.setRank(4);
  player4.setRatings(847);
  player4.setMatches(154);
  player4.setRuns(6451);
  elementsMap.put("player4", player4);
  
  writeXML(filePath,elementsMap);
 }

 private static void writeXML(String filePath, Map<String,Player> elementsMap) {
  XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
  try {
   XMLEventWriter xmlEventWriter = xmlOutputFactory
                    .createXMLEventWriter(new FileOutputStream(filePath), "UTF-8");
            XMLEventFactory eventFactory = XMLEventFactory.newInstance();
            XMLEvent end = eventFactory.createDTD("\n");
            StartDocument startDocument = eventFactory.createStartDocument();
            xmlEventWriter.add(startDocument);
            xmlEventWriter.add(end);
            StartElement configStartElement = eventFactory.createStartElement("",
                    "", "Cricket");
             xmlEventWriter.add(configStartElement);
             xmlEventWriter.add(end);
             StartElement players = eventFactory.createStartElement("",
                     "", "Players");
              xmlEventWriter.add(players);
              xmlEventWriter.add(end);
            for(Map.Entry<string player=""> entry : elementsMap.entrySet()){
             Player player =  entry.getValue();
             XMLEvent newLine = eventFactory.createDTD("\n");
                XMLEvent tab = eventFactory.createDTD("\t");
             StartElement startElement = eventFactory.createStartElement("", "", "Player");
             xmlEventWriter.add(tab);
             xmlEventWriter.add(startElement);
             xmlEventWriter.add(newLine);
             
             StartElement startName = eventFactory.createStartElement("", "", "Name");
             xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
             xmlEventWriter.add(startName);
                Characters characters1 = eventFactory.createCharacters(player.getName());
                xmlEventWriter.add(characters1);
                EndElement endName = eventFactory.createEndElement("", "", "Name");
                xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
                xmlEventWriter.add(endName);
                xmlEventWriter.add(newLine);
                
                StartElement startRatings = eventFactory.createStartElement("", "", "Ratings");
             xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
             xmlEventWriter.add(startRatings);
                Characters characters3 = eventFactory.createCharacters(String.valueOf(player.getRatings()));
                xmlEventWriter.add(characters3);
                EndElement endRatings = eventFactory.createEndElement("", "", "Ratings");
                xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
                xmlEventWriter.add(endRatings);
                xmlEventWriter.add(newLine);
                
                StartElement startMatches = eventFactory.createStartElement("", "", "Matches");
             xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
             xmlEventWriter.add(startMatches);
                Characters characters4 = eventFactory.createCharacters(String.valueOf(player.getMatches()));
                xmlEventWriter.add(characters4);
                EndElement endMatches = eventFactory.createEndElement("", "", "Matches");
                xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
                xmlEventWriter.add(endMatches);
                xmlEventWriter.add(newLine);
                
                StartElement startRun = eventFactory.createStartElement("", "", "Runs");
             xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
             xmlEventWriter.add(startRun);
                Characters characters5 = eventFactory.createCharacters(String.valueOf(player.getRuns()));
                xmlEventWriter.add(characters5);
                EndElement endRun = eventFactory.createEndElement("", "", "Runs");
                xmlEventWriter.add(tab);
             xmlEventWriter.add(tab);
                xmlEventWriter.add(endRun);
                xmlEventWriter.add(newLine);
                
                EndElement endElement = eventFactory.createEndElement("", "", "Player");
                xmlEventWriter.add(tab);
                xmlEventWriter.add(endElement);
                xmlEventWriter.add(newLine);
                
            }
            xmlEventWriter.add(eventFactory.createEndElement("", "", "Players"));
            xmlEventWriter.add(end);
            xmlEventWriter.add(eventFactory.createEndElement("", "", "Cricket"));
            xmlEventWriter.add(end);
            xmlEventWriter.add(eventFactory.createEndDocument());
            xmlEventWriter.close();
            
  } catch (FileNotFoundException | XMLStreamException e) {
   e.printStackTrace();
  }
  
 }

}

Output
cricket1.xml



 
  AB de Villiers  
  898  
  184  
  7777  
 
 
  Hashim Amla  
  849  
  112  
  5654  
 
 
  Kumar Sangakkara  
  849  
  401  
  13961  
 
 
  Virat Kohli  
  847  
  154  
  6451