从JSON API Flutter获取项目 [英] Get item from json api flutter

问题描述

如何从此json格式获取"ename"或"job".

How get 'ename' or 'job' from this json format eg.

{"items":[{"empno":7839,"ename":"KING","job":"PRESIDENT","mgr":null,....

对于这种json格式，请使用:

For this json format use:

[
  {
    "id": 1,
    "name": "Leanne Graham",
    "username": "Bret",
    "email": "[e-mail]",

例如标题:文本(帖子[index] ['name'])

eg. title: Text(posts[index]['name'])

如何处理项目"

推荐答案

您的解决方案是posts['items']['index']['ename']，

但是我建议使用以下方法

根据您的回复创建模型类， 例如

Create a model class from your response, for example

class Welcome {
  String status;
  String error;
  int time;

  Welcome({this.status, this.error, this.time});

  factory Welcome.fromJson(Map<String, dynamic> json) {
    return Welcome(
    status: json['status'],
      error: json['error'],
    time: json['time'],
    );
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['status'] = this.status;
    data['error'] = this.error;
    data['time'] = this.time;
    return data;
  }

}

然后将json转换为这样的模型，

Then convert json to model like this,

Welcome welcome = Welcome.fromJson(dataConvertedToJSON);

现在您可以通过调用其吸气剂来获取数据，

Now you can get data by calling its getters,

welcome.status

要将json转换为模型，可以使用此工具

For converting json to model u can use this tool

这篇关于从JSON API Flutter获取项目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！