获取spring的applicationContext

package cn.springmvc.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class SpringContextUtil implements ApplicationContextAware{
private static ApplicationContext applicationContext;

public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {

SpringContextUtil.applicationContext=applicationContext;
}
public static ApplicationContext getApplicationContext(){
return applicationContext;
}

@SuppressWarnings("unchecked")
public static <T> T getBean(String name) throws BeansException {
return (T) applicationContext.getBean(name);
}

}