利用redis构建消息队列来实现邮件的发送

1.具体思路

1. 获取一定数量的用户邮件信息
2. 使用redis的list数据类型，按照队列的形式将其保存在缓存中
3. 利用队列先进先出的特性，将信息从缓存中读取
4. 发送邮件，成功则将此记录从缓存中移除，失败则继续添加到缓存中

2.具体实现

1. 构建缓存操作类

   redis = new Redis();
           $this->config = $config;
       }
       //仿制克隆对象
       private function __clone()
       {
           // TODO: Implement __clone() method.
       }
   
       /**
        * 实例化对象
        * @param $config
        * @return RedisList
        */
       public static function getInstance($config)
       {
           if(!self::$instance instanceof self){
               //检测$config
               if(empty($config)){
                   $config['host'] = '127.0.0.1';
                   $config['port'] = 6379;
               }
               self::$instance = new self($config);
           }
           return self::$instance;
       }
   
       /**
        * 连接redis服务器
        */
       public function connect()
       {
           $this->redis->connect($this->config['host'], $this->config['port']);
       }
   
       /**
        * 构建缓存队列
        * @param array $arr
        * @return bool
        */
       public function setList($arr = [])
       {
           //对输入数组进行检测
           if(empty($arr)){
               return false;
           }else{
               foreach ($arr as $k=>$v){
                   $this->redis->lPush('email', $v);
               }
           }
           return true;
       }
   
       /**
        * 弹出队列最后一个元素
        * @return string
        */
       public function getList()
       {
           return $this->redis->rPop('email');
       }
   }
   

    

2. 利用PHPMailer，来构建邮件发送类

下载地址：https://github.com/PHPMailer/PHPMailer

config = $config;
        }
    }

    /**
     * 发送邮件
     * @param $toAddress
     * @param $toUsername
     * @param $subject
     * @param $body
     * @param $altBody
     * @return bool|string
     */
    public function sendEmail($toAddress, $toUsername, $subject, $body, $altBody)
    {
        // Instantiation and passing `true` enables exceptions
        $mail = new PHPMailer(true);

        try {
            $mail->isSMTP();                                            // Set mailer to use SMTP
            $mail->Host       = $this->config['Host'];//'smtp.aliyun.com';  // Specify main and backup SMTP servers
            $mail->SMTPAuth   = true;                                   // Enable SMTP authentication
            $mail->Username   = $this->config['Username'];//'[email protected]';                     // SMTP username
            $mail->Password   = $this->config['Password'];//'gygsmwj1';                                 // SMTP password
            $mail->CharSet = $this->config['CharSet'];//'UTF-8';

            //Recipients
            $mail->setFrom($this->config['Username'], $this->config['FromName']);
            $mail->addAddress($toAddress, $toUsername);     // Add a recipient

            // Content
            $mail->isHTML(true);                                  // Set email format to HTML
            $mail->Subject = $subject;//'From aliyun-a';
            $mail->Body    = $body;//'I am aliyun-a;Hello 世界!';
            $mail->AltBody = $altBody;//'I am aliyun-a;';

            $mail->send();
            return true;
        } catch (Exception $e) {
            return $mail->ErrorInfo;
        }
    }
}

3.发送邮件

$v){
    $arr[] = $v;
}
$config = [
    'redis' => [
        'host' => '127.0.0.1',
        'port' => 6379
    ],
    'email' => [
        'Host' => 'emailServer',
        'Username' => 'emial',
        'Password' => 'password',
        'CharSet' => 'UTF-8',
        'FromName' => 'name'
    ]
];
$redis = RedisList::getInstance($config['redis']);
$mailer = new Mailer($config['email']);
$redis->connect();
if($redis->setList($arr)){
    echo '1111
';
}else{
    echo '2222
';
}
while(true){
    $value = $redis->getList();
    if(!$value){
        break;
    }
    if($result = $mailer->sendEmail($value, $value, 'This is a test;' . $value, file_get_contents('model.html'), '这是一个测试啊!') !== true){
        $redis->getList(["$value"]);
        var_dump($result);
    }
}