春季：-如果从web.xml加载上下文，我们如何获得Bean？

Question

I am learning spring which is being used in my project.I found the contextConfigLocation entry in my web.xml

 /WEB-INF/context/*-context.xml
 classpath:/context/database-context.xml
 classpath:/context/database-service-context.xml
 classpath:/context/business-process-management-service-context.xml

and listener

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

In a core project which I read like below

 Resource r=new ClassPathResource("applicationContext.xml");  
 BeanFactory factory=new XmlBeanFactory(r);  
 Employee s=(Employee)factory.getBean("e"); 

But could not figure out how things are working and where getBean() function is called ?

Answer 1

You can retrieve the WebContext with this method:

http://docs.spring.io/spring/docs/3.0.x/javadoc-api/org/springframework/web/context/support/WebApplicationContextUtils.html#getWebApplicationContext%28javax.servlet.ServletContext%29