systemparameter.java

图书管管理系统是基于JAVA的 很好的

package h6.action;

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


/**
 * 对系统的配置文件处理，包括读取各种配置，设置配置文件
 * @author lee
 * @version 0.1
 */
public class SystemParameter {
	final String CONF_PATH = "conf.xml";
	DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
	DocumentBuilder builder;
	Document doc;
	Node root;
	
	public SystemParameter(){
		try{
			builder = factory.newDocumentBuilder();
			doc = builder.parse(new File(CONF_PATH));
			root = doc.getDocumentElement();
		}catch(Exception e){
			System.out.println(e);
		}
	}
	
	public String getDateBaseDriver(){
		NodeList driver = doc.getElementsByTagName("driver");
		Node dr = driver.item(0);
		return dr.getTextContent();
	}
	
	public String getDateBaseUrl(){
		NodeList driver = doc.getElementsByTagName("url");
		Node dr = driver.item(0);
		String url = dr.getTextContent();
		
		if (url.charAt(url.length()-1) != '/'){
			url += "/";
		}
		return url;
	}
	
	public String getDateBaseUser(){
		NodeList driver = doc.getElementsByTagName("user");
		Node dr = driver.item(0);
		return dr.getTextContent();
	}
	
	public String getDateBasePassword(){
		NodeList driver = doc.getElementsByTagName("password");
		Node dr = driver.item(0);
		return dr.getTextContent();
	}
	
	public String getDateBaseName(){
		NodeList driver = doc.getElementsByTagName("dbname");
		Node dr = driver.item(0);
		return dr.getTextContent();
	}
        
        public String getBookingNumber(){
            NodeList driver = doc.getElementsByTagName("booking");
            Node dr = driver.item(0);
            return dr.getTextContent();
        }
        
        public String getLoanNumber(){
            NodeList driver = doc.getElementsByTagName("loan");
            Node dr = driver.item(0);
            return dr.getTextContent();
        }
        
        public String getLendTerm(){
            NodeList driver = doc.getElementsByTagName("term");
            Node dr = driver.item(0);
            return dr.getTextContent();
        }
        
        public String getFineNumber(){
            NodeList driver = doc.getElementsByTagName("fine");
            Node dr = driver.item(0);
            return dr.getTextContent();
        }
}