springboot使用工具类获取IOC容器中的bean对象

package com.dzqc.yx.util;
 
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
 
@Component
public class SpringUtil implements ApplicationContextAware{
 
    private static ApplicationContext applicationContext;
    
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
       if(SpringUtil.applicationContext == null) {
           SpringUtil.applicationContext = applicationContext;
       }
    }
    
    //获取applicationContext
    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }
 
    //通过name获取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }
 
    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }
 
    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}