Consider defining a bean of type 'com.xxx.service.impl.xxxImpl' in your configuration

面向接口编程，把Service层定义为接口，然后用另外一个类去实现这个接口，使用spring boot启动时报错

项目结构：

controller层注入如下

@Autowired
private UserServiceImpl userService;

错误详情

Error starting ApplicationContext. To display the auto-configuration report re-run your application with