available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations

Springboot整合mybati的时候出现的错误
Error creating bean with name 'com.example.mybati.BankTest': Unsatisfied dependency expressed through field 'bankMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.mybati.mapper.BankMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

原因：注入了一个重复的bkdnaf
我在接口中写了@Mapper注解，又在主类中使用了@MapeprScan注解，重复注入了bean
接口类

主类
解决办法
1. 解决一：去掉MapperScan注解
2. 解决二：去掉Mapper注解

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