how to access the messagresource.proprties filevalues in normal class file using struts

i want to access the below username and password in class file.Plz help to me.


messageresource.properties files
username=system
password=system





My class file is

import java.io.PrintStream;
import java.sql.*;
import java.util.*;
import java.io.*;
import java.net.*;
import javax.servlet.http.*;

import org.omg.CORBA.Request;
public class ConnectionDb {
public static Connection con=null;

//pradeep reddy



public static Connection getConnectionDb()throws Exception{


try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","system","system");




System.out.println("Connected database");
}catch(Exception e){
System.out.println("unnable to connect"+e);
}return con;
}
public static void main(String args[])throws Exception{
con=ConnectionDb.getConnectionDb();

System.out.println("connected");
}
}