Spring 循环注入怎么解决/Requested bean is currently in creation: Is there an unresolvable circular reference

今天在干活时碰到了一个问题：Requested bean is currently in creation: Is there an unresolvable circular reference，也就是循环注入/依赖的问题，这里做一下记录，方便还没有解决相同问题的同行做个参考。

我的问题是因为多个服务层在注入时，出现了循环注入的情况，导致启动项目报错，具体的错误 就不帐号出来了。。直接说解决方案。

网上有好多说更改注入方式，将构造器注入改为手动注入之类 的，但这种解决方案感觉 不太适合我，，想了想，既然出现了循环注入的情况 ，那就将其它中的一环打断就好了。。。。

我的解决方案是直接从Spring容器中拿到我须要的Bean，代码如下：

工具类：

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

/**
 * @author ckinghan
 * @title: SpringContextUtil
 * @projectName platform
 * @description: 获取springcontext中的bean
 * @date 2019/10/1811:23
 */
@Component
public class SpringContextUtil implements ApplicationContextAware {

	public static ApplicationContext context;

	@Override
	public void setApplicationContext(ApplicationContext context) throws BeansException {
		SpringContextUtil.context = context;
	}

	/**
	 * 获取容器中的实例
	 * @param clazz 根据class获取Spring容器中对应的Bean类
	 */
	public static  T getBean( Class clazz){
		return context.getBean(clazz);
	}

	public static ApplicationContext getContext(){
		return context;
	}
}

使用范例：

/**
 * @Created with IDEA
 * @author:ckinghan
 * @description: 消息中间件退款重试任务处理
 * @Date:2019年10月18日14:32:56
 */
@Slf4j
@Service
public class MqRefundServiceImpl implements MqRefundService {
	@Override
	public Boolean decode(byte[] msg) {
		String mqMsg = new String(msg);
		try {
			RefundDetailsEntity refundDetailsEntity = JSON.parseObject(mqMsg,RefundDetailsEntity .class);
			//获取支付通道，主要获取退款回调url api_key  mch_id 退款证书地址
			RemoteOperatorService operatorService = SpringContextUtil.getBean(RemoteOperatorService.class);
			R payResult  = operatorService.getPayChannelByUuid(refundDetailsEntity.getPayUuid(),SecurityConstants.FROM_IN);
			if(ObjectUtil.isNull(payResult.getData())){
				throw new Exception("获取退款通道信息失败") ;
			}
			OperatorPayChannel payChannel = payResult.getData();
			KeyStore keyStore  = KeyStore.getInstance("PKCS12");
			FileInputStream instream = null;
			String mchId = null;
			switch (refundDetailsEntity.getPayChannel()){
				case 0:
					instream = new FileInputStream(payChannel.getRefundCertUrl());
					mchId = payChannel.getMchId();
					break;
				case 1:
					instream = new FileInputStream(payChannel.getWxAppRefundCertUrl());
					mchId = payChannel.getWxAppMchId();
					break;
					default:
						log.error("退款重试任务执行失败，未设置除微信之外的其它退款通道");
						return true;
			}
			try {
				keyStore.load(instream,mchId.trim().toCharArray());
			} finally {
				instream.close();
			}
			SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,mchId.trim().toCharArray()).build();
			AsyncService asyncService =  SpringContextUtil.getBean(AsyncService.class);
			asyncService.startWXRefund(refundDetailsEntity,payChannel,sslcontext);

		}catch (Exception e){
			e.printStackTrace();
			log.error("重新发起退款计划失败,退款数据为:{}，具体原因：{}",mqMsg,e.getMessage());
			//如果失败，则直接将订单置为手动订单


		}

		return null;
	}
}

结果完美解决我问题。。。如果此文章观点、思路或描述错误，请各位指出，以免误导它人。