使用swoole异步发送邮件

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### 安装swoole pecl 安装: `pecl install swoole`

看命令行提示，如果它提示说没有写php.ini，则自己手动在PHP.ini后面加上：
extension = "swoole.so"

服务端

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<?php
class Server
{
    private $serv;
    public function __construct() {
        $this->serv = new swoole_server("0.0.0.0", 9501);
        $this->serv->set(array(
            'worker_num' => 1,   //一般设置为服务器CPU数的1-4倍
            'daemonize' => 1,  //以守护进程执行
            'max_request' => 10000,
            'dispatch_mode' => 2,
            'task_worker_num' => 8,  //task进程的数量
            "task_ipc_mode " => 3 ,  //使用消息队列通信，并设置为争抢模式
            //"log_file" => "log/taskqueueu.log" ,//日志
        ));
        $this->serv->on('Receive', array($this, 'onReceive'));
        // bind callback
        $this->serv->on('Task', array($this, 'onTask'));
        $this->serv->on('Finish', array($this, 'onFinish'));
        $this->serv->start();
    }

    public function onReceive( swoole_server $serv, $fd, $from_id, $data ) {
        //echo "Get Message From Client {$fd}:{$data}n";
        // send a task to task worker.
        $serv->task( $data );
    }

    public function onTask($serv,$task_id,$from_id, $data) {
        $array = json_decode( $data , true );
        if ($array['url']) {
            return $this->httpGet( $array['url'] , $array['param']  );
        }

    }

    public function onFinish($serv,$task_id, $data) {
        //echo "Task {$task_id} finishn";
        //echo "Result: {$data}n";
    }


    protected function httpGet($url,$data){
        if ($data) {
            $url .='?'.http_build_query($data) ;
        }
        $curlObj = curl_init();    //初始化curl，
        curl_setopt($curlObj, CURLOPT_URL, $url);   //设置网址
        curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);  //将curl_exec的结果返回
        curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curlObj, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($curlObj, CURLOPT_HEADER, 0);         //是否输出返回头信息
        $response = curl_exec($curlObj);   //执行
        curl_close($curlObj);          //关闭会话
        return $response;
    }

}
$server = new Server();

客户端

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<?php
class Client
{
    private $client;

    public function __construct() {
        $this->client = new swoole_client(SWOOLE_SOCK_TCP);
    }

    public function connect() {
        if( !$this->client->connect("127.0.0.1", 9501 , 1) ) {
            echo "Connect Error";
        }
        $data = array(
            "url" =>  "http://192.168.10.19/send_mail" ,
            "param" => array(
                "username"=>'test',
                "password" => 'test'
            )
        );
        $json_data = json_encode($data);
        $this->client->send( $json_data );
    }
}

$client = new Client();
$client->connect();

查看与关闭

swoole好像没有很便捷的关闭方式。所以只能直接通过关闭进程来关闭。
查看命令：
ps -ef | grep php

结束单个进程：
kill -9 {进程号}

结束所有进程的命令：
killall -9 php