spring.factory中包含com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration,说明不是用@configuration包扫描机制,但PageHelperAutoConfiguration类上有@configuration,在spring包扫描配置了com.github.*的情况下,会导致扫描到PageHelperAutoConfiguration类,优先触发@configuration和@ConditionalOnBean,由于SqlSessionFactory是由spring autoconfig触发,此时还没有SqlSessionFactory这个bean,进而导致@ConditionalOnBean判定条件不成立,最终PageHelperAutoConfiguration添加interceptor直接失效