我有一个HTTP(S)GET请求，它在java(Androidsdk)和Python中运行良好，但是当我尝试将它移植到flutter时，它返回一个空字符串。它应该返回一个包含~2MB数据的JSON。这是Python代码:importhttp.clientHOST,PORT='kretaglobalmobileapi.ekreta.hu',443headers={"apiKey":"7856d350-1fda-45f5-822d-e1a2f3f1acf0","Connection":"keep-alive","Accept":"application/json","HOST":"kret

我有一个HTTP(S)GET请求，它在java(Androidsdk)和Python中运行良好，但是当我尝试将它移植到flutter时，它返回一个空字符串。它应该返回一个包含~2MB数据的JSON。这是Python代码:importhttp.clientHOST,PORT='kretaglobalmobileapi.ekreta.hu',443headers={"apiKey":"7856d350-1fda-45f5-822d-e1a2f3f1acf0","Connection":"keep-alive","Accept":"application/json","HOST":"kret