因SpringBootApplication指定scanBasePackages后，出现问题

在使用mybatis 二级缓存的时候，当扩大了scanBasePackages范围后，出现了如下问题：

@SpringBootApplication(scanBasePackages = "com.zhenhunfan.itoken"})
@EnableEurekaClient
@MapperScan(basePackages = {"com.zhenhunfan.itoken.service.posts.mapper","com.zhenhunfan.itoken.common.mapper"})
public class ServicePostsApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServicePostsApplication.class,args);
    }
}

解决方法：精确定位scanBasePackages范围

@SpringBootApplication(scanBasePackages = {"com.zhenhunfan.itoken.common.context","com.zhenhunfan.itoken.service.posts"})
@EnableEurekaClient
@MapperScan(basePackages = {"com.zhenhunfan.itoken.service.posts.mapper","com.zhenhunfan.itoken.common.mapper"})
public class ServicePostsApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServicePostsApplication.class,args);
    }
}