添加@service注解报错，不加又注入不了的问题

这两天搭建自己的毕设项目框架，遇到一个超级奇怪的问题，用的是spring boot + Thymeleaf + mybatis-plus，数据库是MySQL。
业务层都是用mybatis-plus自动生成的，结果问题就出现了，报错信息如下：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-09-20 14:05:42.551 ERROR 5516 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'articleServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.blogshare.article.mapper.ArticleMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.blogshare.article.mapper.ArticleMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

实现类：

@Service
public class ArticleServiceImpl extends ServiceImpl<ArticleMapper, Article> implements ArticleService {

}

这个报错第一天找了四个多小时，最常见的就是没加@service注解，但是自动生成的实现类必然加了的，然后还有各种@mapper注解啦，说xml有问题啦，路径扫描问题啦，我都一一排查过都没有问题，然后我把@service注解删了，奇迹发生了，他不报错了，但是没有这个注解我controller层注入不了service

项目结构如下：

是因为ArticleMapper没有注入，导致其他类注入失败。

mapper没有注入到容器，问题可能的原因很多