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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