#update 设备在线升级的功能

maibu-service/maibu-iot-service/src/main/java/com/maibu/controller/DeviceOtaController.java

@@ -43,14 +43,14 @@ public class DeviceOtaController extends BaseController {
 
         try (InputStream inputStream = file.getInputStream()) {
 
-            String fileName = "ota/firmware" + firmware.getVersion();
+            String fileName = "ota/firmware/" + firmware.getVersion();
 
             // 上传到 MinIO
-            minioUtil.uploadFile(fileName, inputStream, "image/png");
+            minioUtil.uploadFile(fileName, inputStream, "application/octet-stream");
 
             // 获取访问 URL
             String url = minioUtil.getPublicUrl(fileName);
-            System.out.println("✅ 图片上传成功，访问地址: " + url);
+            System.out.println("固件上传成功，访问地址: " + url);
 
             // 这里可以把 URL 存到 workRecord 里
             firmware.setMinioObjectName(fileName);