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public interface XcLearningCourseRepository extends JpaRepository<XcLearningCourse, String> {???? //根據(jù)用戶和課程查詢選課記錄，用于判斷是否添加選課???? XcLearningCourse findXcLearningCourseByUserIdAndCourseId(String userId, String courseId); }

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public interface XcTaskHisRepository extends JpaRepository<XcTaskHis,String> {?? }

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//完成選課??

??@Transactional??

??public ResponseResult addcourse(String userId, String courseId,String valid,Date? startTime,Date endTime,XcTask xcTask){???????? if (StringUtils.isEmpty(courseId)) {???

?????????ExceptionCast.cast(LearningCode.LEARNING_GETMEDIA_ERROR);???

?????}???????

?if (StringUtils.isEmpty(userId)) {??

??????????ExceptionCast.cast(LearningCode.CHOOSECOURSE_USERISNULL);??

??????}???

?????if(xcTask == null || StringUtils.isEmpty(xcTask.getId())){??

??????????ExceptionCast.cast(LearningCode.CHOOSECOURSE_TASKISNULL);???

?????}????????? //查詢歷史任務(wù)??????

??Optional<XcTaskHis> optional = xcTaskHisRepository.findById(xcTask.getId());??

??????if(optional.isPresent()){????????

????return new ResponseResult(CommonCode.SUCCESS);????

????}?????

???XcLearningCourse xcLearningCourse =? xcLearningCourseRepository.findXcLearningCourseByUserIdAndCourseId(userId, courseId);???????? if (xcLearningCourse == null) {//沒有選課記錄則添加?????

???????xcLearningCourse = new XcLearningCourse();??????

??????xcLearningCourse.setUserId(userId);?????

???????xcLearningCourse.setCourseId(courseId);??????

??????xcLearningCourse.setValid(valid);???????

?????xcLearningCourse.setStartTime(startTime);????

????????xcLearningCourse.setEndTime(endTime);???

?????????xcLearningCourse.setStatus("501001");???

?????????xcLearningCourseRepository.save(xcLearningCourse);??

??????} else {//有選課記錄則更新日期?????

???????xcLearningCourse.setValid(valid);????

????????xcLearningCourse.setStartTime(startTime);????

????????xcLearningCourse.setEndTime(endTime);?????

???????xcLearningCourse.setStatus("501001");?????

???????xcLearningCourseRepository.save(xcLearningCourse);?????

???}??

?????//向歷史任務(wù)表播入記錄

????????Optional<XcTaskHis> optional = xcTaskHisRepository.findById(xcTask.getId());???

?????if(!optional.isPresent()){??????

?????//添加歷史任務(wù)????

????????XcTaskHis xcTaskHis = new XcTaskHis();?????

???????BeanUtils.copyProperties(xcTask,xcTaskHis);????

????????xcTaskHisRepository.save(xcTaskHis);

????????}

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return new ResponseResult(CommonCode.SUCCESS);???? }