我正试图在flutter中使用http解析以下地图
Map<String, dynamic> map = {
"studentID": "${widget.userId}".toString(),
"gstNumber": "${widget.feesBloc?.gstNumberValue}" ?? "",
"entityName": "${widget.feesBloc?.gstEntityValue}" ?? "",
"paymentInfo": {
"amount": "$tempAmount".toString(),
"razorpay_payment_id": "$razorPaymentId" ?? "",
"usedWB": "$_walletAmount"
},
"feeInfo": {
"feeID": "${widget.feesData.feeID}".toString(),
"type": "${widget.feesData.type}",
"category": "${widget.feesData.category}".toString(),
"feeCode": "${widget.feesData.feeCode}".toString(),
"feeShortName": "${widget.feesData.feeShortName}" ?? "",
"basicAMT": "${widget.feesData.basicAMT}".toString(),
"dueDate": "${widget.feesData.dueDate}".toString(),
"grandAMT": "${widget.feesData.grandAMT}",
"status": "${widget.feesData.status}".toString(),
"collectionID": "${widget.feesData.collectionID}".toString(),
"dateStatus": "${widget.feesData.dateStatus}".toString(),
"collectionDetailStatus": "-1",
"schemeInfo": {
"schemeID": "1",
"schemeNo": "${widget.feesData.schemeInfo.schemeNo}",
"schemeTxt": "a" ?? "",
"schemeStatus": "${widget.feesData.schemeInfo.schemeStatus}"
},
"lateFeeInfo": {
"lateDays": "${widget.feesData.lateFeeInfo.lateDays}",
"lateFeePerDay":
"${widget.feesData.lateFeeInfo.lateFeePerDay}".toString(),
"lateFeeAMT": "${widget.feesData.lateFeeInfo.lateFeeAMT}"
},
"taxInfo": {
"tax": "${widget.feesData.taxInfo.tax}".toString(),
"taxAMT": "${widget.feesData.taxInfo.taxAMT}".toString(),
"taxAddedAMT": "${widget.feesData.taxInfo.taxAddedAMT}"
},
"scholarshipInfo": {
"scholarship":
"${widget.feesData.scholarshipInfo.scholarship}".toString(),
"scholarshipAMT": "${widget.feesData.scholarshipInfo.scholarshipAMT}"
}
}
以下是我的api代码
Map<String, String> headers = {
'Content-type': 'application/json',
'Accept': 'application/json',
};
final response = await http.post(FEE_PAYMENT_URL,
headers: headers, body: json.encode(jsonMap));
我得到的状态码为200，但是response.body未返回任何内容，因此解码失败
以下是完整错误
Unhandled Exception: FormatException: Unexpected end of input (at character 1)
E/flutter ( 8915):
E/flutter ( 8915): ^
E/flutter ( 8915):
E/flutter ( 8915): #0 _ChunkedJsonParser.fail (dart:convert-patch/convert_patch.dart:1392:5)
E/flutter ( 8915): #1 _ChunkedJsonParser.close (dart:convert-patch/convert_patch.dart:510:7)
E/flutter ( 8915): #2 _parseJson (dart:convert-patch/convert_patch.dart:30:10)
E/flutter ( 8915): #3 JsonDecoder.convert (dart:convert/json.dart:493:36)
E/flutter ( 8915): #4 JsonCodec.decode (dart:convert/json.dart:151:41)
E/flutter ( 8915): #5 FeePaymentApiProvider.submitFeePayment (package:dice/resources/fee_payment/fee_payment_api_provider.dart:22:42)
E/flutter ( 8915): <asynchronous suspension>
E/flutter ( 8915): #6 FeePaymentRepository.submitFeePayment (package:dice/resources/fee_payment/fee_payment_repository.dart:14:48)
E/flutter ( 8915): <asynchronous suspension>
E/flutter ( 8915): #7 FeesBloc.submitFeePayment (package:dice/bloc/fees_bloc/fees_bloc.dart:54:40)
E/flutter ( 8915): <asynchronous suspension>
E/flutter ( 8915): #8 _PresentFeesListItemState._submitDataToServerAfterPaymentIsSuccessful (package:dice/screens/fees/present_fees/present_fees_list_item.dart:517:21)
E/flutter ( 8915): #9 _PresentFeesListItemState.calculateFees (package:dice/screens/fees/present_fees/present_fees_list_item.dart:202:9)
E/flutter ( 8915): #10 _PresentFeesListItemState.build.<anonymous closure>.<anonymous closure> (package:dice/screens/fees/present_fees/present_fees_list_item.dart:165:21)
E/flutter ( 8915): #11 _rootRunUnary (dart:async/zone.dart:1132:38)
E/flutter ( 8915): #12 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
E/flutter ( 8915): #13 _FutureListener.handleValue (dart:async/future_impl.dart:126:18)
E/flutter ( 8915): #14 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45)
E/flutter ( 8915): #15 Future._propagateToListeners (dart:async/future_impl.dart:668:32)
E/flutter ( 8915): #16 Future._complete (dart:async/future_impl.dart:473:7)
E/flutter ( 8915): #17 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
E/flutter ( 8915): #18 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:28:18)
E/flutter ( 8915): #19 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:294:13)
E/flutter ( 8915): #20 checkInternetConnection (package:dice/helpers/check_internet_connection.dart)
E/flutter ( 8915): <asynchronous suspension>
E/flutter ( 8915): #21 _PresentFeesListItemState.build.<anonymous closure> (package:dice/screens/fees/present_fees/present_fees_list_item.dart:163:17)
E/flutter ( 8915): #22 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:635:14)
E/flutter ( 8915): #23 _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:711:32)
E/flutter ( 8915): #24 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
E/flutter ( 8915): #25 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:365:11)
E/flutter ( 8915): #26 TapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:312:7)
E/flutter ( 8915): #27 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:156:27)
E/flutter ( 8915): #28 _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:222:20)
E/flutter ( 8915): #29 _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:198:22)
E/flutter ( 8915): #30 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)
E/flutter ( 8915): #31 _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)
E/flutter ( 8915): #32 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)
E/flutter ( 8915): #33 _rootRunUnary (dart:async/zone.dart:1136:13)
E/flutter ( 8915): #34 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
E/flutter ( 8915): #35 _CustomZone.runUnaryGuarded (dart:async/zone.dart:931:7)
E/flutter ( 8915): #36 _invoke1 (dart:ui/hooks.dart:250:10)
E/flutter ( 8915): #37 _dispatchPointerDataPacket (dart:ui/hooks.dart:159:5)
E/flutter ( 8915):
任何帮助将不胜感激。我在堆栈上经历了以下问题，但它们没有用。我正在以正确的方式将复杂的地图结构传递到dart中的api，该api在邮递员上可以正常工作