使用Properties读写属性文件

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;

/*Properties相当于一个key,value都是String类型的Map。*/

public class PropertyTest {
	public static void main(String[] args) throws Exception{
		Properties props = new Properties();
		props.setProperty("driver", "com.mysql.jdbc.Driver");
		props.setProperty("url", "jdbc:mysql://localhost:3306/test");
		props.setProperty("username","root");
		props.setProperty("password", "123");
		props.store(new FileOutputStream("Mysql.ini"), "jdbc");
		Properties props2 = new Properties();
		props2.setProperty("author", "libin");
		props2.load(new FileInputStream("Mysql.ini"));
		System.out.println(props2);
	}
}