bug fixed

src/main/java/cn/wisenergy/chnmuseum/party/web/controller/ChinaMobileRestApiController.java

@@ -32,9 +32,6 @@ import org.apache.shiro.authz.annotation.RequiresAuthentication;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.data.redis.core.StringRedisTemplate;
-import org.springframework.data.redis.core.ValueOperations;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
@@ -366,8 +363,12 @@ public class ChinaMobileRestApiController extends BaseController {
                 exhibitionBoard.setExhibitionBoardCatName(name);
             }
             if (exhibitionBoard.getVideoContentId() != null) {
-                String thumbnail = this.videoContentService.getById(exhibitionBoard.getVideoContentId()).getThumbnail();
-                exhibitionBoard.setBoardVideoContentThumbnail(thumbnail);
+                final VideoContent videoContent = this.videoContentService.getById(exhibitionBoard.getVideoContentId());
+                if (videoContent == null) {
+                    exhibitionBoard.setBoardVideoContentThumbnail(videoContent.getThumbnail());
+                } else {
+                    exhibitionBoard.setBoardVideoContentThumbnail(videoContent.getThumbnail());
+                }
             }
             LambdaQueryWrapper<Asset> assetQueryWrapper = Wrappers.<Asset>lambdaQuery().eq(Asset::getRefItemId, exhibitionBoard.getVideoContentId());
             assetQueryWrapper.eq(Asset::getFileCat, FileCatEnum.VIDEO_CONTENT);