修改华为云签名请求头2

Service/DevicePushService.py

@@ -843,7 +843,7 @@ class DevicePushService:
             access_key_id=HUAWEICLOUD_AK, secret_access_key=HUAWEICLOUD_SK, server=HUAWEICLOUD_OBS_SERVER)
         res = obs_client.createSignedUrl(
             method=method, bucketName=HUAWEICLOUD_PUSH_BUKET, objectKey=key_name, expires=3600,
-            headers='application/json')
+            headers={'Content-Type': 'application/json'})
         return res.signedUrl
 
     @staticmethod