今天项目中用到GuzzleHttp,开始不知道怎么用,其实还是很简单的。
直接在项目根目录,输入以下命令
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,可以参考官方文档http://docs.guzzlephp.org/en/latest/
下面这段代码就是官网文档中的一段
$client = new GuzzleHttp\Client();
$res = $client->request('GET', 'https://api.github.com/user', [
'auth' => ['user', 'pass']
]);
echo $res->getStatusCode();
echo $res->getHeader('content-type');
echo $res->getBody();
$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org');
$promise = $client->sendAsync($request)->then(function ($response) {
echo 'I completed! ' . $response->getBody();
});
$promise->wait();
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我在项目中,已经使用了form表单post,异步请求等等。
这篇文章还是挺有意思的《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,但能学到很多东西。
比如:
- 在Laravel中如何创建命令
- 怎么用多线程
贴一下代码
<?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;
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();
},
]);
$promise = $pool->promise();
$promise->wait();
}
public function countedAndCheckEnded()
{
if ($this->counter < $this->totalPageCount){
$this->counter++;
return;
}
$this->info("请求结束!");
}
}
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运行结果如下:
$ 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!