Spring factory class

    /**
     * 读取磁盘上的配置文件
     */
    @Test
    public void demo3(){
        ApplicationContext applicationContext = new FileSystemXmlApplicationContext("c:\\applicationContext.xml");
        UserService userService = (UserService) applicationContext.getBean("userService");
        userService.sayHello();
    }

　　

The original factory class BeanFactory

Now the factory class ApplicationContext