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)}

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