我目前正在学习有关服务，API和AMQP消息传递系统（准确地说是RabbitMQ）的信息，我正在关注关于RabbitMQ消息传递的tutorial。我已经完成了所有工作，但是我想更改项目中的某些内容。我想从路由和控制器中调用发布者和使用者脚本，而不是在终端中键入它们（ php src / publisher.php 或 php src / consumer.php ）
首先，我创建了两条路线：
Route::get('/send-message', 'ServiceAController@index');
Route::get('/receive-message', 'ServiceBController@index');
第一个路由（发送消息）用于将HTTP请求作为消息发送到RabbitMQ，这是通过邮递员POST请求完成的，我在其中插入了所需的参数。该路由的控制器工作正常，看起来像这样：
public function index(Request $request){
//Returning status 200 and sending message if amount is in range
if( (-100000000 <= $request->amount ) && ($request->amount <= 100000000 )){
//Sending message to RabbitMQ
$amount = $request->amount;
$currency = $request->currency;
//Saving request data to variable to publish it
$messageContent = json_encode([
'amount' => $amount * 100,
'currency' => $currency,
]);
//Sending broker message
$host = 'secret';
$port = 5672;
$user = 'secret';
$pass = 'secret';
$vhost = 'secret';
$exchange = 'balance';
$queue = 'local_balance';
$connection = new AMQPStreamConnection($host, $port, $user, $pass, $vhost);
$channel = $connection->channel();
/*
The following code is the same both in the consumer and the producer.
In this way we are sure we always have a queue to consume from and an
exchange where to publish messages.
*/
/*
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.
*/
$channel->queue_declare($queue, false, true, false, false);
/*
name: $exchange
type: direct
passive: false
durable: true // the exchange will survive server restarts
auto_delete: false //the exchange won't be deleted once the channel is closed.
*/
$channel->exchange_declare($exchange, 'direct', false, true, false);
$channel->queue_bind($queue, $exchange);
$messageBody = $messageContent;
$message = new AMQPMessage($messageBody, ['content_type' => 'application/json', 'delivery_mode' => AMQPMessage::DELIVERY_MODE_PERSISTENT]);
$channel->basic_publish($message, $exchange);
$channel->close();
$connection->close();
//Returning json response of HTTP payload
$response = json_encode([
'amount' => +number_format($amount, 2, '.', ''),
'currency' => $currency,
]);
return $response;
}else{
//Returning status 400 if amount is not in acceptable range
abort(400, 'Amount is not in acceptable range'); //Returning code 400 if condition isn't met
}
}
但是，当我将消费者代码放入ServiceBController时，我的问题就开始了，就像我为上一个代码所做的一样。我的ServiceBController看起来像这样：
public function index(){
$host = 'secret';
$port = 5672;
$user = 'secret';
$pass = 'secret';
$vhost = 'secret';
$exchange = 'balance';
$queue = 'local_balance';
$connection = new AMQPStreamConnection($host, $port, $user, $pass, $vhost);
$channel = $connection->channel();
/*
The following code is the same both in the consumer and the producer.
In this way we are sure we always have a queue to consume from and an
exchange where to publish messages.
*/
/*
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.
*/
$channel->queue_declare($queue, false, true, false, false);
/*
name: $exchange
type: direct
passive: false
durable: true // the exchange will survive server restarts
auto_delete: false //the exchange won't be deleted once the channel is closed.
*/
$channel->exchange_declare($exchange, 'direct', false, true, false);
$channel->queue_bind($queue, $exchange);
/**
* @param AMQPMessage $message
*/
function process_message(AMQPMessage $message){
$messageBody = json_decode($message->body);
$amount = $messageBody->amount;
$currency = $messageBody->currency;
file_put_contents('C:/xampp/htdocs/nsoft/data' . '.json', $message->body);
$message->delivery_info['channel']->basic_ack($message->delivery_info['delivery_tag']);
}
/*
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
*/
$consumerTag = 'local.consumer';
$channel->basic_consume($queue, $consumerTag, false, false, false, false, 'process_message');
/**
* @param \PhpAmqpLib\Channel\AMQPChannel $channel
* @param \PhpAmqpLib\Connection\AbstractConnection $connection
*/
function shutdown($channel, $connection){
$channel->close();
$connection->close();
}
register_shutdown_function('shutdown', $channel, $connection);
while (count($channel->callbacks)) {
$channel->wait();
}
}
在Postman中调用它并获得请求后，出现以下错误：
Symfony \ Component \ Debug \ Exception \ FatalErrorException：文件C：\ xampp \ htdocs \ nsoft \ vendor \ php-amqplib \ php-amqplib \ PhpAmqpLib \ Wire \ IO \ StreamIO.php中的最大执行时间超过了30秒在第227行。
我已经被这个错误困扰了几天，似乎找不到解决方案，所以我需要别人的帮助。我在这里做错了什么？作为参考，当我将其作为一个单独的文件（ src / consumer.php ）以及通过终端调用它时，相同的使用者脚本将起作用。任何帮助表示赞赏。
答案 0 :(得分：0)
在max_execution_time中更改参数php.ini的值
max_execution_time = 360 ;Execution time in seconds
答案 1 :(得分：0)
我可以建议您使用Laravel的RabbitMQ队列驱动程序：
https://github.com/vyuldashev/laravel-queue-rabbitmq
使用RabbitMQ服务器，您可以通过Laravel的本机队列系统管理所有消息。 （配置后）唯一需要做的就是在控制台中运行php artisan queue:work。
有几种方法可以使用来处理队列的即时工作。例如，您可以使用Supervisor：