PHP+RabbitMQ实现消息队列的完整代码

前言

为什么使用RabbitMq而不是ActiveMq或者RocketMq？

首先，从业务上来讲，我并不要求消息的100%接受率，并且，我需要结合php开发，RabbitMq相较RocketMq，延迟较低(微妙级)。至于ActiveMq，貌似问题较多。RabbitMq对各种语言的支持较好，所以选择RabbitMq。

先安装PHP对应的RabbitMQ,这里用的是 php_amqp 不同的扩展实现方式会有细微的差异.

php扩展地址: http://pecl.php.net/package/amqp

具体以官网为准  http://www.rabbitmq.com/getstarted.html

介绍

• config.php 配置信息
• BaseMQ.php MQ基类
• ProductMQ.php 生产者类
• ConsumerMQ.php 消费者类
• Consumer2MQ.php 消费者2(可有多个)

config.php

 <?php
 return [
  //配置
  'host' => [
   'host' => '127.0.0.1',
   'port' => '5672',
   'login' => 'guest',
   'password' => 'guest',
   'vhost'=>'/',
  ],
  //交换机
  'exchange'=>'word',
  //路由
  'routes' => [],
 ];

BaseMQ.php

 <?php
 /**
  * Created by PhpStorm.
  * User: pc
  * Date: 2018/12/13
  * Time: 14:11
  */

 namespace MyObjSummary\rabbitMQ;

 /** Member
  *  AMQPChannel
  *  AMQPConnection
  *  AMQPEnvelope
  *  AMQPExchange
  *  AMQPQueue
  * Class BaseMQ
  * @package MyObjSummary\rabbitMQ
  */
 class BaseMQ
 {
  /** MQ Channel
   * @var \AMQPChannel
   */
  public $AMQPChannel ;

  /** MQ Link
   * @var \AMQPConnection
   */
  public $AMQPConnection ;

  /** MQ Envelope
   * @var \AMQPEnvelope
   */
  public $AMQPEnvelope ;

  /** MQ Exchange
   * @var \AMQPExchange
   */
  public $AMQPExchange ;

  /** MQ Queue
   * @var \AMQPQueue
   */
  public $AMQPQueue ;

  /** conf
   * @var
   */
  public $conf ;

  /** exchange
   * @var
   */
  public $exchange ;

  /** link
   * BaseMQ constructor.
   * @throws \AMQPConnectionException
   */
  public function __construct()
  {
   $conf = require 'config.php' ;
   if(!$conf)
    throw new \AMQPConnectionException('config error!');
   $this->conf  = $conf['host'] ;
   $this->exchange = $conf['exchange'] ;
   $this->AMQPConnection = new \AMQPConnection($this->conf);
   if (!$this->AMQPConnection->connect())
    throw new \AMQPConnectionException("Cannot connect to the broker!\n");
  }

  /**
   * close link
   */
  public function close()
  {
   $this->AMQPConnection->disconnect();
  }

  /** Channel
   * @return \AMQPChannel
   * @throws \AMQPConnectionException
   */
  public function channel()
  {
   if(!$this->AMQPChannel) {
    $this->AMQPChannel = new \AMQPChannel($this->AMQPConnection);
   }
   return $this->AMQPChannel;
  }

  /** Exchange
   * @return \AMQPExchange
   * @throws \AMQPConnectionException
   * @throws \AMQPExchangeException
   */
  public function exchange()
  {
   if(!$this->AMQPExchange) {
    $this->AMQPExchange = new \AMQPExchange($this->channel());
    $this->AMQPExchange->setName($this->exchange);
   }
   return $this->AMQPExchange ;
  }

  /** queue
   * @return \AMQPQueue
   * @throws \AMQPConnectionException
   * @throws \AMQPQueueException
   */
  public function queue()
  {
   if(!$this->AMQPQueue) {
    $this->AMQPQueue = new \AMQPQueue($this->channel());
   }
   return $this->AMQPQueue ;
  }

  /** Envelope
   * @return \AMQPEnvelope
   */
  public function envelope()
  {
   if(!$this->AMQPEnvelope) {
    $this->AMQPEnvelope = new \AMQPEnvelope();
   }
   return $this->AMQPEnvelope;
  }
 }

ProductMQ.php

 <?php
 //生产者 P
 namespace MyObjSummary\rabbitMQ;
 require 'BaseMQ.php';
 class ProductMQ extends BaseMQ
 {
  private $routes = ['hello','word']; //路由key

  /**
   * ProductMQ constructor.
   * @throws \AMQPConnectionException
   */
  public function __construct()
  {
   parent::__construct();
  }

  /** 只控制发送成功 不接受消费者是否收到
   * @throws \AMQPChannelException
   * @throws \AMQPConnectionException
   * @throws \AMQPExchangeException
   */
  public function run()
  {
   //频道
   $channel = $this->channel();
   //创建交换机对象
   $ex = $this->exchange();
   //消息内容
   $message = 'product message '.rand(1,99999);
   //开始事务
   $channel->startTransaction();
   $sendEd = true ;
   foreach ($this->routes as $route) {
    $sendEd = $ex->publish($message, $route) ;
    echo "Send Message:".$sendEd."\n";
   }
   if(!$sendEd) {
    $channel->rollbackTransaction();
   }
   $channel->commitTransaction(); //提交事务
   $this->close();
   die ;
  }
 }
 try{
  (new ProductMQ())->run();
 }catch (\Exception $exception){
  var_dump($exception->getMessage()) ;
 }

ConsumerMQ.php

 <?php
 //消费者 C
 namespace MyObjSummary\rabbitMQ;
 require 'BaseMQ.php';
 class ConsumerMQ extends BaseMQ
 {
  private $q_name = 'hello'; //队列名
  private $route = 'hello'; //路由key

  /**
   * ConsumerMQ constructor.
   * @throws \AMQPConnectionException
   */
  public function __construct()
  {
   parent::__construct();
  }

  /** 接受消息 如果终止 重连时会有消息
   * @throws \AMQPChannelException
   * @throws \AMQPConnectionException
   * @throws \AMQPExchangeException
   * @throws \AMQPQueueException
   */
  public function run()
  {

   //创建交换机
   $ex = $this->exchange();
   $ex->setType(AMQP_EX_TYPE_DIRECT); //direct类型
   $ex->setFlags(AMQP_DURABLE); //持久化
   //echo "Exchange Status:".$ex->declare()."\n";

   //创建队列
   $q = $this->queue();
   //var_dump($q->declare());exit();
   $q->setName($this->q_name);
   $q->setFlags(AMQP_DURABLE); //持久化
   //echo "Message Total:".$q->declareQueue()."\n";

   //绑定交换机与队列，并指定路由键
   echo 'Queue Bind: '.$q->bind($this->exchange, $this->route)."\n";

   //阻塞模式接收消息
   echo "Message:\n";
   while(True){
    $q->consume(function ($envelope,$queue){
     $msg = $envelope->getBody();
     echo $msg."\n"; //处理消息
     $queue->ack($envelope->getDeliveryTag()); //手动发送ACK应答
    });
    //$q->consume('processMessage', AMQP_AUTOACK); //自动ACK应答
   }
   $this->close();
  }
 }
 try{
  (new ConsumerMQ)->run();
 }catch (\Exception $exception){
  var_dump($exception->getMessage()) ;
 }

总结

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