BeanFactory is the top-level interface in the Spring container. ApplicationContext is its subinterface.
The difference between BeanFactory and ApplicationContext is that the object is created at different points in time.
The BeanFactory interface
- Spring’s original interface, the implementation class for the original interface is relatively simple.
- The BeanFactory interface implements a container of classes that create objects each time they are acquired.
ApplicationContext
- Each time the container is started, all the objects in the configuration file are created and more is provided.
Implementation class:
- From the classpath loading the configuration file: ClassPathXmlApplicationContext
- From the absolute path to the hard disk under loading the configuration file: FileSystemXmlApplicationContext (” d: / XXXX “)