|  | @@ -58,7 +58,8 @@ public class HereWhiteServiceImpl implements HereWhiteService {
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				|  |  |                  hereWhite.setRoomToken(jsonObject.getJSONObject("msg").getString("roomToken"));
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				|  |  |                  hereWhite.setUpdatedAt(date);
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				|  |  |                  hereWhite.setCreatedAt(date);
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				|  |  | -                hereWhite.setRandomNumeric(RandomStringUtils.randomNumeric(22));
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				|  |  | +                hereWhite.setRandomNumeric22(RandomStringUtils.randomAlphanumeric(22));
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				|  |  | +                hereWhite.setRandomNumeric20(RandomStringUtils.randomAlphanumeric(20));
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				|  |  |                  hereWhiteDao.save(hereWhite);
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				|  |  |              }
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				|  |  |              return hereWhite;
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				|  | @@ -67,6 +68,7 @@ public class HereWhiteServiceImpl implements HereWhiteService {
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				|  |  |          }
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				|  |  |      }
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				|  |  |  
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				|  |  | +
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				|  |  |      @Override
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				|  |  |      public HereWhite getByClassId(Integer courseScheduleId) {
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				|  |  |          return hereWhiteDao.findByCourseScheduleId(courseScheduleId);
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