netty下使用@autowired 无法注入问题

handler下使用@autowired 无法注入可以使用ApplicationContextAware接口来getBean

package zfl.chat.utils;

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

import java.util.Locale;

/**
 * @Auther: ArimaKisho
 * @Date: 2018/12/3 17:46
 * @Description:
 */

@Component
public class SpringContextUtil implements ApplicationContextAware {
    /**
     * 获取spring容器，以访问容器中定义的其他bean
     */
    private static ApplicationContext context;
    /**
     * 实现ApplicationContextAware接口的回调方法，设置上下文环境
     *
     * @param context
     */
    @Override
    public void setApplicationContext(ApplicationContext context)
            throws BeansException {
        SpringContextUtil.context = context;
    }

    /**
     * @return ApplicationContext
     */
    public static ApplicationContext getApplicationContext() {
        return context;
    }
    /**
     * 获取对象
     * 这里重写了bean方法，起主要作用
     * @param beanName
     * @return Object 一个以所给名字注册的bean的实例
     * @throws BeansException
     */

    public static<T> T getBean(String beanName) throws BeansException{
        return (T) context.getBean(beanName);
    }

    public static String getMessage(String key) {
        return context.getMessage(key, null, Locale.getDefault());
    }
}