GET请求

在上代码之前，先把所需要的http包分享出来

import 'package:http/http.dart' as http;main(List
     
       arguments) {  var url = 'http://httpbin.org/';  //向指定URL发送GET请求  http.get(url).then((response) {    print("响应状态： ${response.statusCode}");    print("响应正文： ${response.body}");  });}
     

代码很简单，效果如下

POST请求

import 'package:http/http.dart' as http;main(List
     
       arguments) {  var url = 'http://httpbin.org/post';  //向指定URL发送带参数的POST请求  http.post(url ,body: 'name=doodle&color=blue').then((response) {    print("响应状态： ${response.statusCode}");    print("响应正文： ${response.body}");  });}
     

这也很简单，效果如下

展示JSON数据

import 'dart:convert';import 'package:http/http.dart' as http;main(List
     
       arguments) {  var url = 'https://api.github.com/users/dart-lang/repos';  http.get(url ,headers : {
    'User-Agent':'Dart/1.0(My Dart client)'}).then((response) {    //解析响应字符串，并生成Json对象    List
      
        repos = JSON.decode(response.body);    //输出说明字符串    var heading = 'Repository | Star count | Fork count';    print(heading);    //输出与说明字符串等长的‘=’字符串    print(new List.filled(heading.length, '=').join());    //循环输出Json对象的指定参数    for (var repo in repos) {      print(          "${repo['name']} | "          "${repo['stargazers_count']} | "          "${repo['forks_count']}");    }  });}
      
     

先来看看里面的JSON字符串