在应用中获取Spring的应用上下文

第一种方法，在servlet中

public class SpringUtil implements ApplicationContextAware{private static ApplicationContext context;public SpringUtil(){}public static <T> T getObject(String id,Class<T> clazz) throws BeanNotOfRequiredTypeException,NoSuchBeanDefinitionException,BeansException{return context.getBean(id,clazz);}public void setApplicationContext(ApplicationContext applicationContext)throws BeansException {SpringUtil.context = applicationContext;}}