|  | @@ -147,9 +147,58 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
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				|  |  |  	}
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				|  |  |  
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				|  |  |  	@Override
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				|  |  | -	public boolean createClassGroup(ClassGroup classGroup) {
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				|  |  | -		return true;
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				|  |  | -	}
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				|  |  | +    @Transactional(propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
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				|  |  | +	public boolean create(ClassGroup classGroup) {
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				|  |  | +		
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				|  |  | +		if(classGroup.getType() == null){
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				|  |  | +			throw new BizException("班级类型不能为空");
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				|  |  | +		}
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				|  |  | +		if(classGroup.getGroupType() == null){
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				|  |  | +			throw new BizException("课程组类型不能为空");
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				|  |  | +		}
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				|  |  | +        String userIds = classGroup.getUserIds();
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				|  |  | +        
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				|  |  | +        if(StringUtils.isBlank(userIds)){
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				|  |  | +        	userIds = "";
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				|  |  | +        }
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				|  |  | +
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				|  |  | +        Set<String> userIdStrSet = new HashSet<>(Arrays.asList(userIds.split(",")));
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				|  |  | +
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				|  |  | +        Date date = new Date();
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				|  |  | +        classGroup.setCreateTime(date);
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				|  |  | +        classGroup.setUpdateTime(date);
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				|  |  | +        classGroup.setType(ClassGroupTypeEnum.NORMAL);
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				|  |  | +        classGroup.setExpectStudentNum(userIdStrSet.size());
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				|  |  | +        classGroup.setStudentNum(userIdStrSet.size());
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				|  |  | +        insert(classGroup);
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				|  |  | +
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				|  |  | +        //2、插入班级学生关联关系
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				|  |  | +        List<Integer> userIdList = new ArrayList<>();
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				|  |  | +        List<ClassGroupStudentMapper> classGroupStudentList = new ArrayList<>();
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				|  |  | +        for (String userId : userIdStrSet) {
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				|  |  | +            ClassGroupStudentMapper classGroupStudentMapper = new ClassGroupStudentMapper();
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				|  |  | +            classGroupStudentMapper.setMusicGroupId(classGroup.getMusicGroupId());
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				|  |  | +            classGroupStudentMapper.setClassGroupId(classGroup.getId());
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				|  |  | +            classGroupStudentMapper.setUserId(Integer.parseInt(userId));
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				|  |  | +            classGroupStudentMapper.setCreateTime(date);
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				|  |  | +            classGroupStudentMapper.setStatus(ClassGroupStudentStatusEnum.NORMAL);
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				|  |  | +            classGroupStudentMapper.setGroupType(GroupType.MUSIC);
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				|  |  | +            classGroupStudentList.add(classGroupStudentMapper);
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				|  |  | +
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				|  |  | +            StudentRegistration studentRegistration = new StudentRegistration();
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				|  |  | +            studentRegistration.setClassGroupId(classGroup.getId());
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				|  |  | +            studentRegistration.setUserId(Integer.parseInt(userId));
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				|  |  | +            studentRegistration.setMusicGroupId(classGroup.getMusicGroupId());
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				|  |  | +            studentRegistrationDao.updateByUserIdAndMusicGroupId(studentRegistration);
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				|  |  | +
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				|  |  | +            userIdList.add(Integer.parseInt(userId));
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				|  |  | +        }
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				|  |  | +        classGroupStudentMapperDao.classGroupStudentsInsert(classGroupStudentList);
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				|  |  | +
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				|  |  | +        //加入IM群组
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				|  |  | +        addImGroup(classGroup, userIdList);
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				|  |  | +        return true;
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				|  |  | +    }
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				|  |  |  
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				|  |  |  	@Override
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				|  |  |      public List<ClassGroup> findClassGroup4Teacher(Integer teacherId) {
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