Spring IoC容器的实例化方法

Spring IoC容器的实例化
（1）
Resource resource=new FileSystemResource(beans.xml);
BeanFactory factory=new XmlBeanFactory(resource);

(2)
ClassPathResource resource=new ClassPathResource(beans.xm.);
BeanFactory factory=new XmlBeanFactory(resource);

(3)
ApplicationContext context=new ClassPathXmlApplicationContext
(new String[{“applicationContext.xml”,applicationContext_part2.xml”});
BeanFactory factory=(BeanFactory)context;

(4)
InputStream is=new FileInputStream(beans.xml);
BeanFactory factory=new XmlBeanFactory(is);