springboot 整合mybatis报错 required a bean of type '**' that could not be found

解决办法springboot启动类添加扫描注解（红色字体）

@SpringBootApplication
@MapperScan("com.cloudtop.springbootmybatis.mapper")
public class SpringbootMybatisApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootMybatisApplication.class, args);
    }

}