Spring初始化Ioc容器的三种方法

1、

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

  Student stu = (Student)context.getBean("student");

  stu.setEmail("abc@126.com");

  

2、  

  String filePath = SpringAction.class.getResource("/").getPath();

  filePath = filePath.substring(1);

  Resource resource = new FileSystemResource(filePath+"applicationContext.xml");

  BeanFactory factory = new XmlBeanFactory(resource);

  Student stu1 = (Student)factory.getBean("student");

  stu1.setEmail("abc@163.com");

  3、

  ClassPathResource cr = new ClassPathResource("applicationContext.xml");

  BeanFactory beans = new XmlBeanFactory(cr);

  Student stu2 = (Student)beans.getBean("student");

  stu2.setEmail("abc@qq.com");