修复学生主动加入群组

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/ImGroupServiceImpl.java

@@ -14,6 +14,7 @@ import com.yonge.cooleshow.biz.dal.entity.CourseGroup;
 import com.yonge.cooleshow.biz.dal.entity.ImGroup;
 import com.yonge.cooleshow.biz.dal.entity.ImGroupMember;
 import com.yonge.cooleshow.biz.dal.entity.Teacher;
+import com.yonge.cooleshow.biz.dal.enums.ClientEnum;
 import com.yonge.cooleshow.biz.dal.enums.ImGroupMemberRoleType;
 import com.yonge.cooleshow.biz.dal.enums.ImGroupType;
 import com.yonge.cooleshow.biz.dal.service.CourseGroupService;
@@ -35,6 +36,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import java.text.MessageFormat;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
@@ -246,8 +248,9 @@ public class ImGroupServiceImpl extends ServiceImpl<ImGroupDao, ImGroup> impleme
 
                     if (count > 0 && groupMembers > 0) {
 
+                        String imIdentity = MessageFormat.format("{0}:{1}", String.valueOf(userId), ClientEnum.STUDENT.name());
                         // 自动加入该群组
-                        imGroupMemberService.join(Lists.newArrayList(new GroupMember(userId.toString(), groupId, null)), groupId);
+                        imGroupMemberService.join(Lists.newArrayList(new GroupMember(imIdentity, groupId, null)), groupId);
                     }
                 }