Spring's core API
as follows:
BeanFactroy: This is a factory for the production of any bean. Take the lazy loading, Bean will initialize the first time getBean.
ApplicationContext: BeanFactory is sub-interfaces, and more powerful. (International process, event delivery, automatic assembly Bean, Context various application-layer). When the configuration file is loaded, the operation proceeds to instantiate.
ClassPathApplicationContext: for loading the classPath (classpath, src) specified in the xml file. Load xml running position. -----> / WEB-INF / CLASSES / .... XML
FileSystemXmlApplicationContext: xml file for loading the letter is specified, java web ServletContext.getRealPath () to get the specific letter
------ API as a whole to understand, then do not use, re-learning process requires .-------
The above information comes from the video learning -
Three-shift lights just before dawn chicken, is the man reading time.
Black hair do not know Diligence early, white-haired square regret later reading.