如何在dart flutter中将json字符串转换为json对象? [英] how to convert json string to json object in dart flutter?

问题描述

我有这样的字符串，

{id:1, name: lorem ipsum, address: dolor set amet}

我需要将该字符串转换为json，如何在dart flutter中实现呢?非常感谢您的帮助.

And I need to convert that string to json, how I can do it in dart flutter? thank you so much for your help.

推荐答案

您必须使用 json.decode .它接受一个json对象，并让您处理嵌套的键值对.我给你写个例子

You have to use json.decode. It takes in a json object and let you handle the nested key value pairs. I'll write you an example

import 'dart:convert';

// actual data sent is {success: true, data:{token:'token'}}
final response = await client.post(url, body: reqBody);

// Notice how you have to call body from the response if you are using http to retrieve json
final body = json.decode(response.body);

// This is how you get success value out of the actual json
if (body['success']) {
  //Token is nested inside data field so it goes one deeper.
  final String token = body['data']['token'];

  return {"success": true, "token": token};
}

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