bugfix

woa/media.py

@@ -91,34 +91,40 @@ 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:
-            # 微信要求的字段名必须是 'media'
-            form.add_field('media', f, filename=os.path.basename(file_path))
+		form = aiohttp.FormData()
+		f = open(file_path, 'rb')  # 不用 with
+		try:
+			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)
+			if is_permanent and media_type == 'video':
+				if not title:
+					title = os.path.basename(file_path)
 
-        timeout = aiohttp.ClientTimeout(total=120) # 大文件上传需要更长超时
+				desc_json = json.dumps({
+					"title": title,
+					"introduction": description or ""
+				}, ensure_ascii=False)
 
-        async with aiohttp.ClientSession(timeout=timeout) as session:
-            async with session.post(url, data=form) as resp:
-                result = await resp.json()
+				form.add_field('description', desc_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
-                else:
-                    error(f"上传失败: {result}")
-                    raise Exception(f"WeChat Upload Error: {result}")
+			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):
+						return result['media_id']
+					else:
+						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(