我开发了一个android应用程序,它订阅了一个队列并发布到其他队列。一次它发布相同的消息到两个不同的队列,其中之一是一个名为“队列”的队列,现在来自一个appfog实例,我需要订阅“队列”并使用消息并将它们插入到MySQL数据库中。如何从rabbitmq调用模型php消费者在codeigniter中的回调?
我使用codeigniter为上述目的创建了一个php独立应用程序。由于某种原因,工作应用程序失去了与rabbitmq的连接。我想知道最好的方法来做到这一点。 appfog上的工作应用程序如何支持重新启动应用程序?
我需要用什么样的东西来解决上述问题。
我想这个问题不是与rabbitmq连接。它与与mysql插入相关的代码。我检查了我的应用程序的崩溃日志,错误是“Mysql消失了”。 php rabbitmq consumer的一个例子有回调接收消息和register_shutdown。在接收回调函数中,我不能使用$ this代码点火器,因为它超出了范围,而且我使用了get_instance()。我不知道如何调用从RabbitMQ的客户端的方法接收回拨功能
控制器是
<?php
if (!defined('BASEPATH'))
exit('No direct script access allowed');
include(__DIR__ . '/php-amqplib/config.php');
use PhpAmqpLib\Connection\AMQPConnection;
class Welcome extends CI_Controller {
public function __construct() {
parent::__construct();
}
public function index() {
//connect to rabbitmq and consume messages
//insert messages to mysql
//$this->messages = array();
$exchange = "router";
$queue = "abbiya";
$conn = new AMQPConnection(HOST, PORT, USER, PASS, VHOST);
$ch = $conn->channel();
/*
name: $queue
passive: false
durable: true // the queue will survive server restarts
exclusive: false // the queue can be accessed in other channels
auto_delete: false //the queue won't be deleted once the channel is closed.
*/
$ch->queue_declare($queue, false, true, false, false);
$ch->queue_bind($queue, $exchange, $queue);
/*
queue: Queue from where to get the messages
consumer_tag: Consumer identifier
no_local: Don't receive messages published by this consumer.
no_ack: Tells the server if the consumer will acknowledge the messages.
exclusive: Request exclusive consumer access, meaning only this consumer can access the queue
nowait:
callback: A PHP Callback
*/
$consumer_tag = "abbiya";
$ch->basic_recover(true);
$ch->basic_consume($queue, $consumer_tag, false, false, false, false, function($msg) {
$message_body = json_decode($msg->body);
$msg->delivery_info['channel']->
basic_ack($msg->delivery_info['delivery_tag']);
// Send a message with the string "quit" to cancel the consumer.
if ($msg->body === 'quit') {
$msg->delivery_info['channel']->
basic_cancel($msg->delivery_info['consumer_tag']);
}
$data = array(
'sender_id' => $message_body->r,
'receiver_id' => $message_body->s,
'message_content' => $message_body->m,
// 'sent_time' => $message_body->t,
'status' => 0
);
$ci =& get_instance();
$ci->Message_model->newMessage($data);
}
);
// Loop as long as the channel has callbacks registered
while (count($ch->callbacks)) {
$ch->wait();
}
register_shutdown_function(function() use ($ch, $conn) {
$ch->close();
$conn->close();
$this->index();
}
);
}
}
/* End of file welcome.php */
/* Location: ./application/controllers/welcome.php */