--no commit message

app/file/src/main/java/com/zrqx/file/util/EpubResolve.java

@@ -740,7 +740,7 @@ public class EpubResolve {
 					entityList.add(entity);
 				}
 				// 多线程处理图片生成缩略图
-				new Thread(() -> ImageUtil.createThumbnailToThread(imgs, bookFolderPath + "/")).start();
+				new Thread(() -> ImageUtil.createThumbnailToThread(imgs, rootPath+bookFolderPath+ "/")).start();
 			} catch (IOException e) {
 				e.printStackTrace();
 				try {