spring extral features-----GenericApplicationContext
@Testpublic void test1(){GenericApplicationContext genericApplicationContext=new GenericApplicationContext();BeanDefinitionBuilder builder=BeanDefinitionBuilder.rootBeanDefinition(UserServiceImpl.class);BeanDefinitionBuilder daoBuilder=BeanDefinitionBuilder.rootBeanDefinition(UserDaoImpl.class);BeanDefinition definition=daoBuilder.getBeanDefinition();genericApplicationContext.registerBeanDefinition("userDao", definition);builder.addPropertyReference("userDao", "userDao");genericApplicationContext.registerBeanDefinition("userService", builder.getBeanDefinition());UserService userService=genericApplicationContext.getBean(UserService.class);userService.save("hotbain", "123456");genericApplicationContext.close();}? ? ? ? 动态实现bean的加载。
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