I/flutter：FormatException：输入意外结束（在字符 1）

Question

• 当我尝试向服务器发布 OrderRate 和评论时遇到错误，我收到以下错误。

I/flutter (28194): 错误是: FormatException: Unexpected end of input (at character 1)

• 这也是导致问题的代码：

 Future<void> addRateOrder(String comment, int rate, String orderId) async{
     Map<String, dynamic> rateOrderData = Map();
     rateOrderData['Comment'] = comment;
     rateOrderData['Rate'] = rate.toString();
     try{
      String url = Urls.buildRateOrder(orderId);
      final response =  await retry(
         ()=>http.post(url,         
                  body: rateOrderData)
                  .timeout(Duration(seconds: 5)),
                  retryIf: (e)=> e is SocketException || e is TimeoutException
                  );
                  final responseData =json.decode(response.body);
                  print(responseData);

     }catch(error){
       print('error is: $error');
       throw error;
     }
    }

Answer 1

有时这是由于在您的代码中向同一个 Api 发送了两次相同的请求