1.通过bean读取本地文件中的属性

文件db.propertis

user=root
password=root123
driver=com.mysql.jdbc.Driver
sb=123

ApplicationContext ac = new ClassPathXmlApplicationContext("com/igeek/lesson8/beans.xml");
        Person bean = (Person) ac.getBean("p2");
        System.out.println(bean);

输出结果:

Person [userName=root, password=root123, driver=com.mysql.jdbc.Driver, sb=123]