问题
I am unable to find any option (method, class, etc.) to set http header information using apns library.
This question is alrady present here: Unable to set header field "apns-push-type" in Apple Push Notification in javapns
But not answered so asking again. Sorry to post duplicate question.
来源：https://stackoverflow.com/questions/61278008/unable-to-set-header-field-apns-push-type-in-apple-push-notification-in-javapn