解决SpringBoot中 No qualifying bean of type 'com.yifeng.study.dao.UserMapper' available:...报错

解决SpringBoot中 No qualifying bean of type ‘com.yifeng.study.dao.UserMapper’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}报错

问题描述

原因

没有扫描到mapper包

解决办法

在主启动类上添加扫描mapper包的注解。