我的想法是希望收到“link 123456”,“code 1234”等消息。
链接号必须尽可能快地消耗,而代码可以在所有当前链接号都被消耗的情况下等待。来自这里的RamibMQ文档:https://www.rabbitmq.com/priority.html非常简短干净,但对我来说根本没用。 当我按照它时,消息完全忽略优先级,并按发送顺序显示。
我尝试在Java中实现它,如示例中所示,但结果是相同的。
发件人代码:
发件人优先级为5
<?php
require_once __DIR__ . '/vendor/autoload.php';
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;
use PhpAmqpLib\Wire\AMQPTable;
$connection = new AMQPStreamConnection('localhost', 5672, 'guest', 'guest');
$channel = $connection->channel();
$table = [
'maxPriority' => ['I', 10],
];
$channel->queue_declare('queue', false, true, false, false, false, $table);
$msg = new AMQPMessage('link: '.$_SERVER['argv'][1], [
'delivery_mode' => 2,
'priority' => 5,
]);
$channel->basic_publish($msg, '', 'queue');
$channel->close();
$connection->close();
?>
发件人优先级为1
<?php
require_once __DIR__ . '/vendor/autoload.php';
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;
use PhpAmqpLib\Wire\AMQPTable;
$connection = new AMQPStreamConnection('localhost', 5672, 'guest', 'guest');
$channel = $connection->channel();
$table = [
'maxPriority' => ['I', 10],
];
$channel->queue_declare('queue', false, true, false, false, false, $table);
$msg = new AMQPMessage('code: '.$_SERVER['argv'][1], [
'delivery_mode' => 2,
'priority' => 1,
]);
$channel->basic_publish($msg, '', 'queue');
$channel->close();
$connection->close();
?>
接收者代码:
<?php
require_once __DIR__ . '/vendor/autoload.php';
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;
use PhpAmqpLib\Wire\AMQPTable;
function s($str, $charset = null) {
return new \Delight\Str\Str($str, $charset);
}
$connection = new AMQPStreamConnection('localhost', 5672, 'guest', 'guest');
$channel = $connection->channel();
$table = [
'maxPriority' => ['I', 10],
];
$channel->queue_declare('queue', false, true, false, false, false, $table);
echo ' [*] Waiting for messages. To exit press CTRL+C', "\n";
$callback = function($msg){
file_put_contents('rabbit_logs.txt', $msg->body."\r\n", FILE_APPEND);
if( (new \Delight\Str\Str($msg->body))->startsWith('code: ')==1){
echo " [x] Received ", $msg->body, "\n";
sleep(1);
echo " [x] Code sent", "\n";
}
else{
if( (new \Delight\Str\Str($msg->body))->startsWith('lead: ')==1){
echo " [x] Received ", $msg->body, "\n";
sleep(1);
echo " [x] lead sent", "\n";
}
else{
if( (new \Delight\Str\Str($msg->body))->startsWith('link: ')==1){
echo " [x] Received ", $msg->body, "\n";
sleep(1);
echo " [x] link sent", "\n";
}
else{
echo " [x] Received ", $msg->body, "\n";
echo " [x] Nothing sent", "\n";
}
}
}
$msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
};
$channel->basic_qos(null, 1, null);
$channel->basic_consume('queue', '', false, false, false, false, $callback);
while(count($channel->callbacks)) {
$channel->wait();
}
$channel->close();
$connection->close();
?>
答案 0 :(得分:0)
RabbitMQ团队监控the rabbitmq-users
mailing list,有时只回答StackOverflow上的问题。
您需要使用x-max-priority
参数并构建参数表,如this demo所示。