PHP+RabbitMQ实现消息队列(代码全篇)

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前言
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()) ;
}