视频0时长处理

fs-service/src/main/java/com/fs/course/service/impl/FsUserCourseVideoServiceImpl.java

@@ -3045,7 +3045,7 @@ public class FsUserCourseVideoServiceImpl implements IFsUserCourseVideoService
         }
 
 
-        if (videoDuration==null){
+        if (videoDuration==null && videoDuration == 0L){
             FsUserCourseVideo video = fsUserCourseVideoMapper.selectFsUserCourseVideoByVideoId(videoId);
             videoDuration=video.getDuration();
             redisCache.setCacheObject(videoRedisKey,video.getDuration());