我正在尝试构建一个Flutter应用程序,我需要使用
dart http library进行HTTP调用.所以这里是我用来拨打电话的剪辑,
import 'package:Flutter/material.dart'; import 'dart:async'; import 'dart:convert'; import 'dart:io'; import 'package:http/http.dart' as http; Future<List> getData() async { List data = new List(); var httpClient = new HttpClient(); var request = await httpClient.get("localhost",5000,'/search?query=hello'); var response = await request.close(); if (response.statusCode == HttpStatus.OK) { var jsonString = await response.transform(utf8.decoder).join(); data = json.decode(jsonString); print(data); return data; } else { return data; } }
E/Flutter (30949): [ERROR:topaz/lib/tonic/logging/dart_error.cc(16)] Unhandled exception: E/Flutter (30949): SocketException: OS Error: Connection refused,errno = 111,address = localhost,port = 46999 E/Flutter (30949): #0 _HomePageState.getData (file:///home/bholagabbar/AndroidStudioProjects/fnd_modile_client/lib/main.dart:75:19) E/Flutter (30949): <asynchronous suspension> E/Flutter (30949): #1 _HomePageState.build.<anonymous closure> (file:///home/bholagabbar/AndroidStudioProjects/fnd_modile_client/lib/main.dart:56:15) E/Flutter (30949): #2 _InkResponseState._handleTap (package:Flutter/src/material/ink_well.dart:478:14) E/Flutter (30949): #3 _InkResponseState.build.<anonymous closure> (package:Flutter/src/material/ink_well.dart:530:30) E/Flutter (30949): #4 GestureRecognizer.invokeCallback (package:Flutter/src/gestures/recognizer.dart:102:24) E/Flutter (30949): #5 TapGestureRecognizer._checkUp (package:Flutter/src/gestures/tap.dart:161:9) E/Flutter (30949): #6 TapGestureRecognizer.handlePrimaryPointer (package:Flutter/src/gestures/tap.dart:94:7) E/Flutter (30949): #7 PrimaryPointerGestureRecognizer.handleEvent (package:Flutter/src/gestures/recognizer.dart:315:9) E/Flutter (30949): #8 PointerRouter._dispatch (package:Flutter/src/gestures/pointer_router.dart:73:12) E/Flutter (30949): #9 PointerRouter.route (package:Flutter/src/gestures/pointer_router.dart:101:11) E/Flutter (30949): #10 _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:Flutter/src/gestures/binding.dart:143:19) E/Flutter (30949): #11 _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:Flutter/src/gestures/binding.dart:121:22) E/Flutter (30949): #12 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:Flutter/src/gestures/binding.dart:101:7) E/Flutter (30949): #13 _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:Flutter/src/gestures/binding.dart:64:7) E/Flutter (30949): #14 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:Flutter/src/gestures/binding.dart:48:7) E/Flutter (30949): #15 _invoke1 (dart:ui/hooks.dart:134:13) E/Flutter (30949): #16 _dispatchPointerDataPacket (dart:ui/hooks.dart:91:5)
我的API已正常运行,正如您在错误日志中看到的那样,请求似乎没有经过.这究竟是什么问题?
为了记录,我尝试了get,getUrl的每个排列,甚至尝试用How to point to localhost:8000 with the Dart http package in Flutter?中提到的替换localhost和127.0.0.1和10.0.2.2.我正在手机上直接测试(One Plus 3)
解决方法
这应该做到这一点
adb reverse tcp:5000 tcp:5000
https://developer.android.com/studio/command-line/adb.html
或者使用adb reverse –list查看重定向的设置.
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