如何在Dart中使用GZip或类似方法压缩字符串? [英] How to compress a string using GZip or similar in Dart?

问题描述

我想在Dart中压缩字符串(在浏览器中).我试过了:

I want to compress a string in Dart (in the browser). I tried this:

import 'package:archive/archive.dart';

[...]

List<int> stringBytes = UTF8.encode(myString);
List<int> gzipBytes = new GZipEncoder().encode(stringBytes);
String compressedString = UTF8.decode(gzipBytes, allowMalformed: true);

很显然 UTF8.decode 不适用于此目的，并且不起作用(文件不可读).

Obviously UTF8.decode is not intended for this and it doesn't work (file is unreadable).

在Dart中压缩字符串的正确方法是什么?

What is the right way to compress a string in Dart?

推荐答案

压缩的字节列表可能不是有效的UTF8序列，而是可以在base64中对其进行编码.

The compressed list of bytes is probably not a valid UTF8 sequence instead you could encode it in base64.

import 'dart:convert';
import 'package:archive/archive.dart';

void main() {
  var myString = 'myString';
  var stringBytes = utf8.encode(myString);
  var gzipBytes = GZipEncoder().encode(stringBytes);
  var compressedString = base64.encode(gzipBytes);

  print(compressedString);
}

这篇关于如何在Dart中使用GZip或类似方法压缩字符串?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！