我有一个本地资源，一个Docx文件（或者在某些情况下只有UInt8List字节），如何从这个文件（或从字节）读取数据？
这个数据只包含字符串，我怎么能读它？我可以读.txt文件，但没有docx，为什么？事实上它没有特殊字符，所以问题不是编码。（检查下面的内容，HtmlCode）
我试过了：这是字节
final data = await rootBundle.load('template.docx');
final bytes = data.buffer.asUint8List();这是一个（）的字符串
String fileText = await rootBundle.loadString('template.docx');错误：
Error: FormatException: Unexpected extension byte (at offset 16)
at Object.throw_ [as throw] (http://localhost:54436/dart_sdk.js:5366:11)
at convert._Utf8Decoder.new.convertGeneral (http://localhost:54436/dart_sdk.js:49632:19)
at convert._Utf8Decoder.new.convertSingle (http://localhost:54436/dart_sdk.js:49604:19)
at Utf8Decoder.convert (http://localhost:54436/dart_sdk.js:49463:67)
at Utf8Codec.decode (http://localhost:54436/dart_sdk.js:49172:22)
at asset_bundle.PlatformAssetBundle.new.loadString (http://localhost:54436/packages/flutter/src/services/system_channels.dart.lib.js:2289:31)
at loadString.next (<anonymous>)
at http://localhost:54436/dart_sdk.js:39272:33
at _RootZone.runUnary (http://localhost:54436/dart_sdk.js:39129:58)
at _FutureListener.thenAwait.handleValue (http://localhost:54436/dart_sdk.js:34091:29)
at handleValueCallback (http://localhost:54436/dart_sdk.js:34651:49)
at Function._propagateToListeners (http://localhost:54436/dart_sdk.js:34689:17)
at _Future.new.[_completeWithValue] (http://localhost:54436/dart_sdk.js:34531:23)
at async._AsyncCallbackEntry.new.callback (http://localhost:54436/dart_sdk.js:34554:35)
at Object._microtaskLoop (http://localhost:54436/dart_sdk.js:39416:13)
at _startMicrotaskLoop (http://localhost:54436/dart_sdk.js:39422:13)
at http://localhost:54436/dart_sdk.js:34905:9字节没有任何问题，但是字符串会抛出这个错误，我该怎么解决呢？
完整代码：
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Html(),
);
}
}
class Html extends StatefulWidget {
LoadHtml createState() => LoadHtml();
}
class LoadHtml extends State<Html> {
void initState() {
readFilesFromAssets();
super.initState();
}
// Read .docx function not only .docx mostly any type .json .txt etc
readFilesFromAssets() async {
print("read now");
String assetContent = await rootBundle.loadString('assets/template.docx');
print("assetContent : $assetContent");
}
//this is exaclty what would be in the template.doc
var HtmlCode = r"""
<HTML>
<BODY LANG="ru-RU" DIR="LTR">
<P CLASS="western" ALIGN=CENTER STYLE="margin-bottom: 0in"><FONT FACE="Times New Roman, serif"><FONT SIZE=3><SPAN LANG="en-US">Example
Document</SPAN></FONT></FONT></P>
<P CLASS="western" ALIGN=CENTER STYLE="margin-bottom: 0in"> <FONT FACE="Times New Roman, serif"><FONT SIZE=5><SPAN LANG="en-US"><B>Document
name</B></SPAN></FONT></FONT></P>
<P LANG="en-US" CLASS="western" ALIGN=CENTER STYLE="margin-bottom: 0in">
<BR>
</P>
<P CLASS="western" ALIGN=CENTER STYLE="margin-bottom: 0in"><FONT FACE="Times New Roman, serif"><FONT SIZE=3><SPAN LANG="en-US">Szerzodes
tobbi resze:</SPAN></FONT></FONT></P>
</BODY>
</HTML>
""";
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('From docx')),
body: WebViewX(
initialContent: HtmlCode, //I should read this from the .docx
initialSourceType: SourceType.HTML,
),
);
}
}
2条答案
按热度按时间63lcw9qa1#
首先将您的
.docx文件添加到assets文件夹中，与lib文件夹相同级别。然后像这样将
assets文件夹添加到pubspec.yaml在你的
main.dart里面添加这个函数后，即initState()里面的readFileFromAssets()，当应用程序启动时，它将开始从.docx加载数据。并导入此包太
import 'package:flutter/services.dart';下面是输出：
yhuiod9q2#
您可以使用Docs to text packages
这是一个小软件包，允许您从.docx文件（Microsoft Word）中检索文本（仅文本）。
感谢SnowLukin