Laravel中用GuzzleHttp

今天项目中用到GuzzleHttp,开始不知道怎么用,其实仍是很简单的。
直接在项目根目录,输入如下命令php

composer require guzzlehttp/guzzle

等下载安装好,在vendor文件夹下,有一个guzzle目录,此文件夹就是guzzlehttp的package了。
如何使用,能够参考官方文档http://docs.guzzlephp.org/en/latest/html

guzzle中文文档:http://guzzle-cn.readthedocs.io/zh_CN/latest/overview.html
下面这段代码就是官网文档中的一段git

$client = new GuzzleHttp\Client(); $res = $client->request('GET', 'https://api.github.com/user', [ 'auth' => ['user', 'pass'] ]); echo $res->getStatusCode(); // "200"
echo $res->getHeader('content-type'); // 'application/json; charset=utf8'
echo $res->getBody(); // {"type":"User"...' // Send an asynchronous request.
$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org'); $promise = $client->sendAsync($request)->then(function ($response) { echo 'I completed! ' . $response->getBody(); }); $promise->wait();

 


我在项目中,已经使用了form表单post,异步请求等等。
这篇文章仍是挺有意思的《Laravel 下使用 Guzzle 编写多线程爬虫实战》,代码啥都有,虽然是个小玩意,但能学到不少东西。
好比:github

  1. 在Laravel中如何建立命令
  2. 怎么用多线程

贴一下代码json

<?php namespace App\Console\Commands; use GuzzleHttp\Client; use GuzzleHttp\Pool; use GuzzleHttp\Psr7\Request; use GuzzleHttp\Exception\ClientException; use Illuminate\Console\Command; class MultithreadingRequest extends Command { private $totalPageCount; private $counter        = 1; private $concurrency    = 7;  // 同时并发抓取

    private $users = ['CycloneAxe', 'appleboy', 'Aufree', 'lifesign',
                        'overtrue', 'zhengjinghua', 'NauxLiu']; protected $signature = 'test:multithreading-request'; protected $description = 'Command description'; public function __construct() { parent::__construct(); } public function handle() { $this->totalPageCount = count($this->users); $client = new Client(); $requests = function ($total) use ($client) { foreach ($this->users as $key => $user) { $uri = 'https://api.github.com/users/' . $user; yield function() use ($client, $uri) { return $client->getAsync($uri); }; } }; $pool = new Pool($client, $requests($this->totalPageCount), [ 'concurrency' => $this->concurrency,
            'fulfilled'   => function ($response, $index){ $res = json_decode($response->getBody()->getContents()); $this->info("请求第 $index 个请求,用户 " . $this->users[$index] . " 的 Github ID 为:" .$res->id); $this->countedAndCheckEnded(); },
            'rejected' => function ($reason, $index){ $this->error("rejected" ); $this->error("rejected reason: " . $reason ); $this->countedAndCheckEnded(); }, ]); // 开始发送请求
        $promise = $pool->promise(); $promise->wait(); } public function countedAndCheckEnded() { if ($this->counter < $this->totalPageCount){ $this->counter++; return; } $this->info("请求结束!"); } }

 

运行结果以下:api

$ php artisan test:multithreading-request 请求第 5 个请求,用户 zhengjinghua 的 Github ID 为:3413430 请求第 6 个请求,用户 NauxLiu 的 Github ID 为:9570112 请求第 0 个请求,用户 CycloneAxe 的 Github ID 为:6268176 请求第 1 个请求,用户 appleboy 的 Github ID 为:21979 请求第 2 个请求,用户 Aufree 的 Github ID 为:5310542 请求第 3 个请求,用户 lifesign 的 Github ID 为:2189610 请求第 4 个请求,用户 overtrue 的 Github ID 为:1472352 请求结束!
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