Java/JSP การสร้างคลาส เพื่อรับค่า จากไฟล์ xml เพื่อจะนำค่าเหล่านั้นไปใช้ในการติดต่อดาต้าเบส

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import java.io.File;
/**
 *
 * @author Administrator
 */
public class ReadXMLFile {
    
    
    public String db_host;
    public String db_name;
    public String db_port;
    public String db_user;
    public String db_pass;
    
    public String getDBHost(){
        return db_host;
    }
    public String getDBName(){
        return db_name;
    }   
    public String getDBPort(){
        return db_port;
    }       
    public String getDBUser(){
        return db_user;
    }   
    public String getDBPass(){
        return db_pass;
    } 
    
  public void setDBConfig(String db_id) {
 
    try {
        
	File fXmlFile = new File("/WEB-INF/configuration/applicationconfig.xml");
	DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
	DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
	Document doc = dBuilder.parse(fXmlFile);

	doc.getDocumentElement().normalize();
        NodeList nList = doc.getElementsByTagName("database");
        boolean falg=true;
            for (int temp = 0; temp < nList.getLength(); temp++) {

                Node nNode = nList.item(temp);
	if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    
                    if (eElement.getAttribute("id").equalsIgnoreCase(db_id)) {
                        db_host = eElement.getElementsByTagName("host").item(0).getTextContent();
                        db_name = eElement.getElementsByTagName("name").item(0).getTextContent();
                        db_port = eElement.getElementsByTagName("port").item(0).getTextContent();
                        db_user = eElement.getElementsByTagName("username").item(0).getTextContent();
                        db_pass = eElement.getElementsByTagName("password").item(0).getTextContent();
                        
                        falg = false;
                        break;
                    }
                }
            }
            if(falg)throw new Exception("NOT Found: " + db_id);
    } catch (Exception e) {
    }
  }
 
}  

public class ReadXMLFile {
	string m_host;
	string m_name;
	string m_port;
	string m_username;
	string m_password;

	public ReadXMLFile(string host,string name,string port,string username,string password)
	{
		m_host = host;
		m_name = name;
		m_port = port;
		m_username = username;
		m_password = password;
	}
	...


	..

}

ReadXMLFile cls = new ReadXMLFile(a,b,c,d,e);