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RabbitMQ消息队列-通过fanout模式将消息推送到多个Queue中

时间:2018-04-15 11:55:46      阅读:371      评论:0      收藏:0      [点我收藏+]

标签:out   找不到   new   com   新建   bubuko   rabbitmq   脚本   ESS   

介绍如何使用fanout模式将消息推送到多个队列。
有时我们会遇到这样的情况,多个功能模块都希望得到完整的消息数据。例如一个log的消息,一个我们希望输出在屏幕上实时监控,另外一个用户持久化日志。这时就可以使用fanout模式。fanout模式模式不像direct模式通过routingkey来进行匹配,而是会把消息发送到所以的已经绑定的队列中。

技术分享图片

 可以看到ca和cb收到的消息完全一致。注意以上代码fanout.php中并没有新建队列,所以先运行fanout_ca.php和fanout_cb.php的脚本,如果先运行fanout.php因为找不到绑定的队列数据就会丢失。 

 

<?php

/*
* RabbitMQ fanout
* create by superid
* 新建fanout.php用来发布消息。fanout_ca.php 和 fanout_cb.php 用来订阅不同队列消费消息。
*/

$exchangeName = ‘log‘;
$message = ‘log--‘;
$conn_args = array(
  ‘host‘ => ‘127.0.0.1‘,
  ‘port‘ => ‘5672‘,
  ‘login‘ => ‘guest‘,
  ‘password‘ => ‘guest‘,
  ‘vhost‘=>‘/‘
);
$connection = new AMQPConnection($conn_args);
$connection->connect() or die("Cannot connect to the broker!\n");
try {
  $channel = new AMQPChannel($connection); // 建立一个 Channel信道

  $exchange = new AMQPExchange($channel); //创建交换机
  $exchange->setName($exchangeName); //设置交换机的名字
  $exchange->setType(AMQP_EX_TYPE_FANOUT); //fanout类型 Exchange 类型: direct fanout topic
  $exchange->setFlags(AMQP_DURABLE); //持久化
  $exchange->declareExchange();

  for($i=1 ; $i<=20;$i++){
    //Fanout类型最简单,这种模型忽略routingkey
    $exchange->publish($message.$i, "");
    var_dump("[x] Sent $message $i");
  }
} catch (AMQPConnectionException $e) {
  var_dump($e);
  exit();
}
$connection->disconnect();

?>

订阅者:

fanout_ca.php

<?php
/*
* RabbitMQ fanout 模式
* create by superrd
*/

$exchangeName = ‘log‘;
$queueName = ‘queuea‘;
$routeKey = ‘‘;
$conn_args = array(
  ‘host‘ => ‘127.0.0.1‘,
  ‘port‘ => ‘5672‘,
  ‘login‘ => ‘guest‘,
  ‘password‘ => ‘guest‘,
  ‘vhost‘=>‘/‘
);
$connection = new AMQPConnection($conn_args);
$connection->connect() or die("Cannot connect to the broker!\n");

$channel = new AMQPChannel($connection);

$exchange = new AMQPExchange($channel);
$exchange->setName($exchangeName);
$exchange->setType(AMQP_EX_TYPE_FANOUT);
$exchange->setFlags(AMQP_DURABLE);
$exchange->declareExchange();

$queue = new AMQPQueue($channel);
$queue->setName($queueName);
$queue->setFlags(AMQP_DURABLE);
echo "Message Total:".$queue->declareQueue()."\n"; //队列中消息的总量
$queue->bind($exchangeName, $routeKey);

//阻塞模式接收消息
echo "Message:\n";
while(True){
  $queue->consume(‘processMessage‘);
  //$queue->consume(‘processMessage‘, AMQP_AUTOACK); //自动ACK应答
}

$conn->disconnect();
/**
* 消费回调函数
* 处理消息
*/
function processMessage($envelope, $queue) {
  $msg = $envelope->getBody();
  echo $msg."\n"; //处理消息
  $queue->ack($envelope->getDeliveryTag()); //手动发送ACK应答
}

 ?>

 

订阅者:

fanout_cb.php

<?php
/*
* RabbitMQ fanout 模式
* create by superrd
*/

$exchangeName = ‘log‘;
$queueName = ‘queueb‘;
$routeKey = ‘‘; //Fanout类型最简单,这种模型忽略routingkey
$conn_args = array(
  ‘host‘ => ‘127.0.0.1‘,
  ‘port‘ => ‘5672‘,
  ‘login‘ => ‘guest‘,
  ‘password‘ => ‘guest‘,
  ‘vhost‘=>‘/‘
);

$connection = new AMQPConnection($conn_args);
$connection->connect() or die("Cannot connect to the broker!\n");

$channel = new AMQPChannel($connection);

$exchange = new AMQPExchange($channel);
$exchange->setName($exchangeName);
$exchange->setType(AMQP_EX_TYPE_FANOUT);
$exchange->setFlags(AMQP_DURABLE);
$exchange->declareExchange();

$queue = new AMQPQueue($channel);
$queue->setName($queueName);
$queue->setFlags(AMQP_DURABLE);
echo "Message Total:".$queue->declareQueue()."\n"; //队列中消息的总量
$queue->bind($exchangeName, $routeKey);

//阻塞模式接收消息
echo "Message:\n";
while(True){
  $queue->consume(‘processMessage‘);
  //$queue->consume(‘processMessage‘, AMQP_AUTOACK); //自动ACK应答
}

$conn->disconnect();
/**
* 消费回调函数
* 处理消息
*/
function processMessage($envelope, $queue) {
  $msg = $envelope->getBody();
  // sleep(1);
  echo $msg."\n"; //处理消息
  $queue->ack($envelope->getDeliveryTag()); //手动发送ACK应答
}

?>

 

RabbitMQ消息队列-通过fanout模式将消息推送到多个Queue中

标签:out   找不到   new   com   新建   bubuko   rabbitmq   脚本   ESS   

原文地址:https://www.cnblogs.com/maomaochong123/p/8836447.html

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