[Spring] Could not autowire field 异常的一种可能原因

1. 出现这种异常情况，有可能是你当前类注入到当前类引起的
2. 比如如下代码

@Service(value="flowNodeService")@Transactionalpublic class FlowNodeServiceImpl extends BaseServiceImpl<FlowNode, Integer> implements IFlowNodeService{    @Autowired private IFlowNodeService flowNodeService;