dbconfigreader.java

使用JFREECHART组件 读取数据库数据

package cn.itcast.utils;

import java.io.InputStream;
import java.util.Properties;

public class DBConfigReader {

	private static Properties properties = new Properties();
	private static String fileName = "jdbc.properties";
	static{		
		try {			
			InputStream is =  null;			
		    is= DBConfigReader.class.getClassLoader().getResourceAsStream(fileName);
			properties.load(is);			
			is.close();	
		} catch (Exception e) {
			e.printStackTrace();
		}		
	}
	
    public static String getDriverName(){
    	//System.out.println(properties.getProperty("driverClassName"));
    	
    	return properties.getProperty("driverClassName");
    }
    
    public static String getURL(){
    	//System.out.println(properties.getProperty("url"));
    	
    	return properties.getProperty("url");
    }
    public static String getUsername(){
    	//System.out.println(properties.getProperty("username"));
    	
    	return properties.getProperty("username");
    }
    public static String getPassword(){
    	//System.out.println(properties.getProperty("password"));
    	
    	return properties.getProperty("password");
    }
  

}