import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; import web.service.BaseService; import web.service.BiliService; import java.io.IOException; public class Test { private static Logger log = LogManager.getLogger(); public static void main(String[] args) throws IOException { log.info(org.springframework.util.ClassUtils.isAssignable(BiliService.class,BaseService.class)); } }