PHP基于rabbitmq操作类的生产者和消费者功能示例

本文实例讲述了PHP基于rabbitmq操作类的生产者和消费者功能。分享给大家供大家参考，具体如下：

注意事项：

1、accept.php消费者代码需要在命令行执行

2、'username'=>'asdf','password'=>'123456' 改成自己的帐号和密码

RabbitMQCommand.php操作类代码

<?php
/*
 * amqp协议操作类，可以访问rabbitMQ
 * 需先安装php_amqp扩展
 */
class RabbitMQCommand{
  public $configs = array();
  //交换机名称
  public $exchange_name = '';
  //队列名称
  public $queue_name = '';
  //路由名称
  public $route_key = '';
  /*
   * 持久化，默认True
   */
  public $durable = True;
  /*
   * 自动删除
   * exchange is deleted when all queues have finished using it
   * queue is deleted when last consumer unsubscribes
   *
   */
  public $autodelete = False;
  /*
   * 镜像
   * 镜像队列，打开后消息会在节点之间复制，有master和slave的概念
   */
  public $mirror = False;
  private $_conn = Null;
  private $_exchange = Null;
  private $_channel = Null;
  private $_queue = Null;
  /*
   * @configs array('host'=>$host,'port'=>5672,'username'=>$username,'password'=>$password,'vhost'=>'/')
   */
  public function __construct($configs = array(), $exchange_name = '', $queue_name = '', $route_key = '') {
    $this->setConfigs($configs);
    $this->exchange_name = $exchange_name;
    $this->queue_name = $queue_name;
    $this->route_key = $route_key;
  }
  private function setConfigs($configs) {
    if (!is_array($configs)) {
      throw new Exception('configs is not array');
    }
    if (!($configs['host'] && $configs['port'] && $configs['username'] && $configs['password'])) {
      throw new Exception('configs is empty');
    }
    if (empty($configs['vhost'])) {
      $configs['vhost'] = '/';
    }
    $configs['login'] = $configs['username'];
    unset($configs['username']);
    $this->configs = $configs;
  }
  /*
   * 设置是否持久化，默认为True
   */
  public function setDurable($durable) {
    $this->durable = $durable;
  }
  /*
   * 设置是否自动删除
   */
  public function setAutoDelete($autodelete) {
    $this->autodelete = $autodelete;
  }
  /*
   * 设置是否镜像
   */
  public function setMirror($mirror) {
    $this->mirror = $mirror;
  }
  /*
   * 打开amqp连接
   */
  private function open() {
    if (!$this->_conn) {
      try {
        $this->_conn = new AMQPConnection($this->configs);
        $this->_conn->connect();
        $this->initConnection();
      } catch (AMQPConnectionException $ex) {
        throw new Exception('cannot connection rabbitmq',500);
      }
    }
  }
  /*
   * rabbitmq连接不变
   * 重置交换机，队列，路由等配置
   */
  public function reset($exchange_name, $queue_name, $route_key) {
    $this->exchange_name = $exchange_name;
    $this->queue_name = $queue_name;
    $this->route_key = $route_key;
    $this->initConnection();
  }
  /*
   * 初始化rabbit连接的相关配置
   */
  private function initConnection() {
    if (empty($this->exchange_name) || empty($this->queue_name) || empty($this->route_key)) {
      throw new Exception('rabbitmq exchange_name or queue_name or route_key is empty',500);
    }
    $this->_channel = new AMQPChannel($this->_conn);
    $this->_exchange = new AMQPExchange($this->_channel);
    $this->_exchange->setName($this->exchange_name);
    $this->_exchange->setType(AMQP_EX_TYPE_DIRECT);
    if ($this->durable)
      $this->_exchange->setFlags(AMQP_DURABLE);
    if ($this->autodelete)
      $this->_exchange->setFlags(AMQP_AUTODELETE);
    $this->_exchange->declare();
    $this->_queue = new AMQPQueue($this->_channel);
    $this->_queue->setName($this->queue_name);
    if ($this->durable)
      $this->_queue->setFlags(AMQP_DURABLE);
    if ($this->autodelete)
      $this->_queue->setFlags(AMQP_AUTODELETE);
    if ($this->mirror)
      $this->_queue->setArgument('x-ha-policy', 'all');
    $this->_queue->declare();
    $this->_queue->bind($this->exchange_name, $this->route_key);
  }
  public function close() {
    if ($this->_conn) {
      $this->_conn->disconnect();
    }
  }
  public function __sleep() {
    $this->close();
    return array_keys(get_object_vars($this));
  }
  public function __destruct() {
    $this->close();
  }
  /*
   * 生产者发送消息
   */
  public function send($msg) {
    $this->open();
    if(is_array($msg)){
      $msg = json_encode($msg);
    }else{
      $msg = trim(strval($msg));
    }
    return $this->_exchange->publish($msg, $this->route_key);
  }
  /*
   * 消费者
   * $fun_name = array($classobj,$function) or function name string
   * $autoack 是否自动应答
   *
   * function processMessage($envelope, $queue) {
      $msg = $envelope->getBody();
      echo $msg."\n"; //处理消息
      $queue->ack($envelope->getDeliveryTag());//手动应答
    }
   */
  public function run($fun_name, $autoack = True){
    $this->open();
    if (!$fun_name || !$this->_queue) return False;
    while(True){
      if ($autoack) $this->_queue->consume($fun_name, AMQP_AUTOACK);
      else $this->_queue->consume($fun_name);
    }
  }
}

send.php生产者代码

<?php
set_time_limit(0);
include_once('RabbitMQCommand.php');
$configs = array('host'=>'127.0.0.1','port'=>5672,'username'=>'asdf','password'=>'123456','vhost'=>'/');
$exchange_name = 'class-e-1';
$queue_name = 'class-q-1';
$route_key = 'class-r-1';
$ra = new RabbitMQCommand($configs,$exchange_name,$queue_name,$route_key);
for($i=0;$i<=100;$i++){
  $ra->send(date('Y-m-d H:i:s',time()));
}
exit();

accept.php消费者代码

<?php
error_reporting(0);
include_once('RabbitMQCommand.php');
$configs = array('host'=>'127.0.0.1','port'=>5672,'username'=>'asdf','password'=>'123456','vhost'=>'/');
$exchange_name = 'class-e-1';
$queue_name = 'class-q-1';
$route_key = 'class-r-1';
$ra = new RabbitMQCommand($configs,$exchange_name,$queue_name,$route_key);
class A{
  function processMessage($envelope, $queue) {
    $msg = $envelope->getBody();
    $envelopeID = $envelope->getDeliveryTag();
    $pid = posix_getpid();
    file_put_contents("log{$pid}.log", $msg.'|'.$envelopeID.''."\r\n",FILE_APPEND);
    $queue->ack($envelopeID);
  }
}
$a = new A();
$s = $ra->run(array($a,'processMessage'),false);

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