文件名过长友好提示

hx-file/src/main/java/com/fjhx/file/service/impl/FileInfoServiceImpl.java

@@ -56,6 +56,11 @@ public class FileInfoServiceImpl extends ServiceImpl<FileInfoMapper, FileInfo> i
     @Override
     public SingVo getSing(SingDto dto) {
 
+        String fileName = dto.getFileName();
+        if (fileName.length()>100){
+            throw new ServiceException("文件名过长,请缩短后重试！！！");
+        }
+
         SingVo singVo = new SingVo();
 
         // 文件后缀名