SpringBeanUtil 类 管理容器中的自定义bean

package com.hy.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * 
 * @Date:
 * @Description:获取Spring容器中bean的工具类
 */
@Component
public class SpringBeanUtil implements ApplicationContextAware{

    private static ApplicationContext applicationContext;

    private SpringBeanUtil(){}

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringBeanUtil.applicationContext == null) {
            SpringBeanUtil.applicationContext = applicationContext;
        }
    }

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}