fix 直播

zhongzheng-system/src/main/java/com/zhongzheng/modules/course/service/impl/CourseSectionServiceImpl.java

@@ -364,7 +364,7 @@ public class CourseSectionServiceImpl extends ServiceImpl<CourseSectionMapper, C
                 throw new CustomException("只支持查询回放聊天内容");
             }
             PolyvLiveQueryBo queryBo = BeanUtil.toBean(bo, PolyvLiveQueryBo.class);
-            queryBo.setSectionId(bo.getSectionId());
+            queryBo.setChannelId(section.getLiveUrl());
             queryBo.setStartTime(section.getRealLiveStartTime());
             queryBo.setEndTime(section.getRealLiveEndTime());
             return iPolyvLiveService.GetHistoryChatMsg(queryBo);