import java.io.FileInputStream;

import java.io.IOException;

import java.util.Properties;  

public class PropertiesTest {

    public static Properties getConf(String filename){

        Properties prop = new Properties();  

        try {

            //prop.load(PropertiesTest.class.getClassLoader().getResourceAsStream("config.properties")); //放在bin/下

            prop.load(new FileInputStream(filename));   //放在项目根目录

            /*System.out.println(prop.getProperty("database"));

            System.out.println(prop.getProperty("dbuser"));

            System.out.println(prop.getProperty("dbpassword"));*/

        } catch(IOException e) {

            e.printStackTrace();

        }

        return prop;

    }

    public static void main(String[] args) {

        Properties prop = getConf("config.properties");

    }

}