Loading properties from a XML file

In this section, you will learn how to use of Load properties from a XML file.

Loading properties from a XML file

Loading properties from a XML file

     

This Example shows you how to Load properties from a XML file. JAXP (Java API for XML Processing) is an interface which provides parsing of xml documents. Here the Document BuilderFactory is used to create new DOM parsers. Some of the methods used for loading properties from a XML file are described below:-

Properties p=new Properties():-Creates an instance of class Property class .Importance of property class here is that by the use of this class we can save properties to a stream and also load properties from a stream.

p.load(inputStream):-This method reads a propertyList from inputstream (inputStream).

p.list(System.out):-This method prints the propertyList to the OutputStream.

Xml code for the program generated is:-

<?xml version="1.0" encoding="UTF-8"?>
<Company>
    <Employee>
        <name Girish="Gi">Roseindia.net
        </name>
    </Employee>
    <Employee>
        <name Komal="Ko">newsTrack
        </name>
    </Employee>
    <Employee>
        <name Mahendra="Rose">Girish Tewari
        </name>
    </Employee>
</Company>

Loadpropertiesfromxml.java

 

/* 
 * @Program to load properties from XML file.
 * Loadpropertiesfromxml.java 
 * Author:-RoseIndia Team
 * Date:-10-Jun-2008
 */

import java.io.*;
import java.util.Properties;
import org.w3c.dom.*;
import javax.xml.parsers.*;

public class Loadpropertiesfromxml {

  public static void main(String[] args) throws Exception {
  DocumentBuilderFactory builderFactory = 
  DocumentBuilderFactory.newInstance();

  DocumentBuilder builder = 
   builderFactory.newDocumentBuilder();

  Document doc = builder.newDocument();
  new Loadpropertiesfromxml().load(doc);
  }

  public void load(Document doc) throws Exception {
  Properties p = new Properties();
  FileInputStream inputStream = new FileInputStream("1.xml");
  p.load(inputStream);
  
  p.list(System.out);
  System.out.println("Properties of Girish is: "
  + p.getProperty(
"Girish"));
  }
}


Output of the program:-

-- listing properties --
komal=newstrack
Girish=roseindia
Properties of Girish is: roseindia
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