java读写属性配置文件

package readproperties;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
 
/**
 * java 读取属性文件
 * Created by lgq on 2015/6/4.
 */
public class ReadProperties {
 
    protected static Properties properties;
 
    public static void loadProp() {
        properties = new Properties();
        try {
        	//方法一载入配置文件
            //properties.load(ReadProperties.class.getResourceAsStream("/jdbc.properties"));
            //方法二载入配置文件
        	properties.load(new FileInputStream("src/jdbc.properties"));
        } catch (IOException e) {
            e.printStackTrace();
        }
        String driverName = properties.getProperty("jdbc.driverClassName");
        String url = properties.getProperty("jdbc.url");
        String username = properties.getProperty("jdbc.username");
        String password = properties.getProperty("jdbc.password");
        System.out.println(driverName);
        System.out.println(url);
        System.out.println(username);
        System.out.println(password);
    }
 
    public static void main(String[] args) {
    	ReadProperties.loadProp();
    }
     
}