下面的代码片段在 Flutter json 解码中抛出格式异常，有什么建议吗？
import 'dart:async' show Future;
import 'dart:convert';
Future<String> readBooks() async {
String jsonString = '{"description":"As part of the "You Don’t Know JS" series","quantity":55}';
Map<String, dynamic> books = json.decode(jsonString);
return jsonString;
}
格式异常:
2018-10-23 20:40:30.680 18115-18142/addon.com.bookshop E/flutter: [ERROR:flutter/shell/common/shell.cc(181)] Dart Error: Unhandled exception: FormatException: Unexpected character (at character 26) {"name":"As part of the "You Don’t Know JS" series","Age":55} ^
#0 _ChunkedJsonParser.fail (dart:convert/runtime/libconvert_patch.dart:1358:5) #1 _ChunkedJsonParser.parse (dart:convert/runtime/libconvert_patch.dart:919:48) #2 _parseJson (dart:convert/runtime/libconvert_patch.dart:29:10) #3 JsonDecoder.convert (dart:convert/json.dart:540:36) #4 JsonCodec.decode (dart:convert/json.dart:167:41) #5 _MyHomePageState.readBooks (file:///E:/Me/TimePass/flutter/book_shop/lib/main.dart:58:39) <asynchronous suspension> #6 _MyHomePageState.build.<anonymous closure> (file:///E:/Me/TimePass/flutter/book_shop/lib/main.dart:48:39) <asynchronous suspension> #7 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:503:14) #8 _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:558:30) #9 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:102:24) #10 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:242:9) #11 TapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:175:7) #12 PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:315:9) #13 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:73:12) #14 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:101:11) #15 _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:143:19) #16 _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:121:22) #17 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:101:7) #18 _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue(package:flutter/src/gestures/binding.dart:64:7) #19 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:48:7) #20 _invoke1 (dart:ui/hooks.dart:142:13) #21 _dispatchPointerDataPacket (dart:ui/hooks.dart:99:5)
最佳答案
那只是无效的 JSON。
内部引号需要转义为 \" 以使您的 JSON 有效。
关于dart - json.decode 在 json 中的嵌套双引号上抛出 FormatException - dart，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52952717/