good version for web

backend/app/utils/file.py

@@ -59,6 +59,27 @@ class MinioClient:
             logging.warning(f"MinIO upload error: {e}")
             return False
     
+    def upload_from_bytes(self, data: bytes, object_name: str) -> bool:
+        """从字节数据上传文件"""
+        if not self.is_connected:
+            logging.warning("MinIO is not connected. Upload skipped.")
+            return False
+        
+        try:
+            import io
+            file_obj = io.BytesIO(data)
+            self.client.put_object(
+                self.bucket_name,
+                object_name,
+                file_obj,
+                length=len(data),
+                part_size=10*1024*1024
+            )
+            return True
+        except S3Error as e:
+            logging.warning(f"MinIO upload error: {e}")
+            return False
+    
     def upload_fileobj(self, file_obj: io.BytesIO, object_name: str, content_type: str = "application/octet-stream") -> bool:
         """上传文件对象"""
         if not self.is_connected: