package nju.seec.helper.dto.coursefile; import lombok.Data; import org.springframework.web.multipart.MultipartFile; import javax.validation.constraints.NotNull; import java.io.Serializable; /** * @author cst */ @Data public class CourseFileDTO implements Serializable { private static final long serialVersionUID = -3754505745869667461L; @NotNull(message = "缺少课程ID") private Long courseId; @NotNull(message = "缺少文件") private MultipartFile file; }