Differences between beanfactory and applicationcontext creating beans in Spring

L Beanfactory: This is a factory that is used to generate arbitrary beans.

Deferred load, the bean is initialized the first time Getbean

L ApplicationContext: is the Beanfactory sub-interface, the function is more powerful. (International processing, event delivery, bean Automatic assembly, context implementations of various application tiers). When the configuration file is loaded, the object is instantiated.

Classpathxmlapplicationcontext for loading XML under Classpath (Classpath, SRC)

Load XML run-time location-/web-inf/classes/...xml

Filesystemxmlapplicationcontext for loading XML under the specified drive letter

Load XML run-time location-/web-inf/...xml

Obtaining specific drive characters via Java Webservletcontext.getrealpath ()

@Test Public void demo02 () { Using Beanfactory--the first bar is instantiated with Getbean String Xmlpath = "Com/itheima/b_di/beans.xml"; Beanfactory beanfactory = new xmlbeanfactory (new Classpathresource (Xmlpath)); Bookservice Bookservice = (bookservice) beanfactory.getbean ("Bookserviceid"); Bookservice.addbook (); }