bugfix

woa/media.py

@@ -91,35 +91,41 @@ class WeChatMediaManager:
         else:
             url = f"https://api.weixin.qq.com/cgi-bin/media/upload?access_token={token}&type={media_type}"
 
-        # 构建 multipart/form-data
 		form = aiohttp.FormData()
-        with open(file_path, 'rb') as f:
+		f = open(file_path, 'rb')  # 不用 with
-            # 微信要求的字段名必须是 'media'
+		try:
-            form.add_field('media', f, filename=os.path.basename(file_path))
+			form.add_field(
+				'media',
+				f,
+				filename=os.path.basename(file_path),
+				content_type='application/octet-stream'
+			)
 
-            # 永久视频需要额外的 description 字段 (JSON 格式)
 			if is_permanent and media_type == 'video':
 				if not title:
 					title = os.path.basename(file_path)
+
 				desc_json = json.dumps({
 					"title": title,
 					"introduction": description or ""
 				}, ensure_ascii=False)
+
 				form.add_field('description', desc_json)
 
-        timeout = aiohttp.ClientTimeout(total=120) # 大文件上传需要更长超时
+			timeout = aiohttp.ClientTimeout(total=120)
 
 			async with aiohttp.ClientSession(timeout=timeout) as session:
 				async with session.post(url, data=form) as resp:
 					result = await resp.json()
 
 					if resp.status == 200 and ('media_id' in result or 'url' in result):
-                    debug(f"上传成功 ({'永久' if is_permanent else '临时'}): {result.get('media_id')}")
+						return result['media_id']
-                    return result
 					else:
-                    error(f"上传失败: {result}")
 						raise Exception(f"WeChat Upload Error: {result}")
 
+		finally:
+			f.close()   # 手动关闭
+
     # ================= 3. 下载媒体文件 =================
     async def download_media(
         self,