rabbitmq实战 php,RabbitMq PHP实战：路由

生产者：

/**

* 根据参数产生不同的生产者

* example:php emit_logs_direct.php info 'this is a info message'

*/

require_once dirname(__DIR__) . '/vendor/autoload.php';

use PhpAmqpLib\Connection\AMQPStreamConnection;

use PhpAmqpLib\Message\AMQPMessage;

//创建RabbitMq连接

$connection = new AMQPStreamConnection('localhost', 5672, 'guest', 'guest');

//创建信道

$channel = $connection->channel();

//创建叫direct_logs的交换器，类型为direct

$channel->exchange_declare('direct_logs', 'direct', false, false, false);

//获取路由routing_key

$severity = isset($argv[1]) && !empty($argv[1]) ? $argv[1] : 'info';

//获取消息

$data = implode(' ', array_slice($argv, 2));

if (empty($data)) {

$data = "Hello World!";

}

//对参数进行封装

$msg = new AMQPMessage($data);

//发送消息

//$msg=>消息,$exchange=》交换器,$routing_key=》路由

$channel->basic_publish($msg, 'direct_logs', $severity);

echo ' [x] Sent ', $severity, ':', $data, "\n";

//关闭信道和连接

$channel->close();

$connection->close();

消费者：

/**

* 这是一个通过路由routing_key来消费消息的实列

* example: php receive_logs_direct.php info warning

*/

require_once dirname(__DIR__) . '/vendor/autoload.php';

use PhpAmqpLib\Connection\AMQPStreamConnection;

//创建RabbitMq连接

$connection = new AMQPStreamConnection('localhost', 5672, 'guest', 'guest');

//创建信道

$channel = $connection->channel();

//创建叫direct_logs的交换器，类型为direct

$channel->exchange_declare('direct_logs', 'direct', false, false, false);

//随机生成一个队列，并获取队列名称

list($queue_name, ,) = $channel->queue_declare("", false, false, true, false);

//通过参数来设定路由routing_key

$severities = array_slice($argv, 1);

if (empty($severities)) {

file_put_contents('php://stderr', "Usage: $argv[0] [info] [warning] [error]\n");

exit(1);

}

//将队列和交换器和路由绑定

foreach ($severities as $severity) {

$channel->queue_bind($queue_name, 'direct_logs', $severity);

}

echo " [*] Waiting for logs. To exit press CTRL+C\n";

//回调函数处理

$callback = function ($msg) {

echo ' [x] ', $msg->delivery_info['routing_key'], ':', $msg->body, "\n";

};

//消费者消费

$channel->basic_consume($queue_name, '', false, true, false, false, $callback);

//监听消息

while (count($channel->callbacks)) {

$channel->wait();

}

//关闭信道和连接

$channel->close();

$connection->close();