【问题集萃】N005：SpringBoot2启动提示组件注册失败 Field userService XXXX that could not be found.

SpringBoot2启动提示组件注册失败Field userService XXXX that could not be found.

Field userInfoService in com.gavinbj.confmng.controller.UserController required a bean of type 'com.gavinbj.confmng.service.UserInfoService' that could not be found.

The injection point has the following annotations:
	- @org.springframework.beans.factory.annotation.Autowired(required=true)

原因：注入失败，SpringBoot扫描不到相应的组件。

解决对策：

在具体的业务逻辑类上边添加SpringBoot注解（@Service用于标注业务层组件）。

/**
 * 用户信息
 * 
 * @author gavinbj
 *
 */
@Service
public class UserInfoServiceImpl implements UserInfoService {

	@Autowired 
	private UserInfoMapper userInfoMapper;