diff --git a/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java b/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
index 9e192a7..0e78cc8 100644
--- a/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
+++ b/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
@@ -175,6 +175,10 @@ public class FileUploadUtils {
 
 
     public static String getContentType(String FilenameExtension) {
+        System.out.println("---------- getContentType Debug ----------");
+        System.out.println("传入的扩展名参数: [" + FilenameExtension + "]");
+        System.out.println("扩展名长度: " + (FilenameExtension != null ? FilenameExtension.length() : "null"));
+
         if (FilenameExtension.equalsIgnoreCase(".bmp")) {
             return "image/bmp";
         }
@@ -218,11 +222,18 @@ public class FileUploadUtils {
             return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
         }
         //waypoints  拓恒+大疆的航线文件类型
+        System.out.println("检查 waypoints 匹配:");
+        System.out.println("  与 '.waypoints' 比较: " + FilenameExtension.equalsIgnoreCase(".waypoints"));
+        System.out.println("  与 '.kmz' 比较: " + FilenameExtension.equalsIgnoreCase(".kmz"));
+
         if (FilenameExtension.equalsIgnoreCase(".waypoints") ||
                 FilenameExtension.equalsIgnoreCase(".kmz")) {
+            System.out.println("匹配成功! 返回 application/octet-stream");
             return "application/octet-stream";
         }
 
+        System.out.println("未匹配任何类型，返回默认值 image/jpeg");
+        System.out.println("------------------------------------------");
         return "image/jpeg";
     }