file type

boman-common/boman-common-core/src/main/java/com/boman/common/core/utils/file/MimeTypeUtils.java

@@ -36,7 +36,9 @@ public class MimeTypeUtils
             // 视频格式
             "mp4", "avi", "rmvb",
             // pdf
-            "pdf" };
+            "pdf",
+            // ofd
+            "ofd"};
 
     public static String getExtension(String prefix)
     {