spring boot mybatis没有扫描jar中的Mapper接口

@ComponentScan(basePackages = "com.xx")
@MapperScan(basePackages = "com.xx.**.dao")
@SpringBootApplication
@EnableCaching
@EnableDiscoveryClient
public class EnterApplication {
    public static void main(String[] args) {
        SpringApplication.run(EnterApplication.class,args);
    }
}