SSM框架练手，mapper层Autowire创建bean怎么也不成功，报错：org.springframework.beans.factory.UnsatisfiedDep

新建springboot项目启动时出现报错：Consider defining a bean of type ‘com.project.springboot.mapper.UserMapper’ in your con

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我们在springboot整合mybatis时，有时会出现这个错误：Consider defining a bean of type ‘com.example.mall.mapper.UserMa