How to Load Java Properties from the XML File?

--
The java.util.Properties class represents a persistent set of properties. The Properties can be saved to a stream or loaded from a stream. Each key and its corresponding value in the property list is a string. In Java 5.0, the java.util.Properties class allows you not only to use it to specify key-value pairs on a single line separated by an equal sign, but also to use XML files to load and save those key-value pairs.


The loadFromXML(InputStream) and storeToXML(OutputStream, String, String) methods load and store properties in a simple XML format. By default the UTF-8 character encoding is used, however a specific encoding may be specified if required. An XML properties document has the following DOCTYPE declaration:

Note that the system URI (http://java.sun.com/dtd/properties.dtd) is not accessed when exporting or importing properties; it merely serves as a string to uniquely identify the DTD, which is:

The following file application.xml is an example of the XML file based on above DTD

-- Properties File Comments --
Value1
Value2

Here is the code which generates to application.xml file:

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;

public class XMLProperties {
  public static void main(String args[]) {
    try {
      Properties prop = new Properties();
      prop.setProperty("key1", "value1");
      prop.setProperty("key2", "value2");

      FileOutputStream out = new FileOutputStream("application.xml");
      prop.storeToXML(out,"-- Properties File Comments --");
      out.close();

      FileInputStream in = new FileInputStream("application.xml");

      Properties prop1 = new Properties();
      prop1.loadFromXML(in);
      prop1.list(System.out);

    }
    catch(Exception e) {
      e.printStackTrace();
    }

  }
}