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				@@ -58,7 +58,7 @@ public class ImGroupMemberServiceImpl extends ServiceImpl<ImGroupMemberDao, ImGr 
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				         //记录群成员 
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				         BasicUserInfo basicUserInfo = teacherDao.getBasicUserInfo(userId); 
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				 //        String username = roleType== ImGroupMember.ImGroupMemberRoleType.TEACHER?basicUserInfo.getRealName():basicUserInfo.getUsername(); 
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				-        ImGroupMember imGroupMember = new ImGroupMember(imGroupId, userId,basicUserInfo.getAvatar(), basicUserInfo.getUsername(), isAdmin, roleType); 
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				+        ImGroupMember imGroupMember = new ImGroupMember(imGroupId,userId,basicUserInfo.getUsername(),basicUserInfo.getAvatar(), isAdmin, roleType); 
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				         Date date = new Date(); 
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				         imGroupMember.setCreateTime(date); 
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				         imGroupMember.setUpdateTime(date); 
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