用PHP嘗試RabbitMQ(amqp擴充)實現訊息的發送和接收

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用PHP嘗試RabbitMQ(amqp擴充)實現訊息的發送和接收

消費者:接收訊息

邏輯:
建立串連-->建立channel-->建立交換器-->建立隊列-->綁定交換器/隊列/路由鍵-->接收訊息

 '192.168.1.93',    'port' => '5672',    'login' => 'guest',    'password' => 'guest',    'vhost'=>'/');$e_name = 'e_linvo'; //交換器名$q_name = 'q_linvo'; //隊列名$k_route = 'key_1'; //路由key//建立串連和channel$conn = new AMQPConnection($conn_args);if (!$conn->connect()) {    die("Cannot connect to the broker!\n");}$channel = new AMQPChannel($conn);//建立交換器$ex = new AMQPExchange($channel);$ex->setName($e_name);$ex->setType(AMQP_EX_TYPE_DIRECT); //direct類型$ex->setFlags(AMQP_DURABLE); //持久化echo "Exchange Status:".$ex->declare()."\n";//建立隊列$q = new AMQPQueue($channel);$q->setName($q_name);$q->setFlags(AMQP_DURABLE); //持久化echo "Message Total:".$q->declare()."\n";//綁定交換器與隊列,並指定路由鍵echo 'Queue Bind: '.$q->bind($e_name, $k_route)."\n";//阻塞模式接收訊息echo "Message:\n";while(True){    $q->consume('processMessage');    //$q->consume('processMessage', AMQP_AUTOACK); //自動ACK應答}$conn->disconnect();/*** 消費回呼函數* 處理訊息*/function processMessage($envelope, $queue) {    $msg = $envelope->getBody();    echo $msg."\n"; //處理訊息    $queue->ack($envelope->getDeliveryTag()); //手動發送ACK應答}

生產者:發送訊息

邏輯:
建立串連-->建立channel-->建立交換器對象-->發送訊息

 '192.168.1.93',    'port' => '5672',    'login' => 'guest',    'password' => 'guest',    'vhost'=>'/');$e_name = 'e_linvo'; //交換器名//$q_name = 'q_linvo'; //無需隊列名$k_route = 'key_1'; //路由key//建立串連和channel$conn = new AMQPConnection($conn_args);if (!$conn->connect()) {    die("Cannot connect to the broker!\n");}$channel = new AMQPChannel($conn);//訊息內容$message = "TEST MESSAGE! 測試訊息!";//建立交換器對象$ex = new AMQPExchange($channel);$ex->setName($e_name);//發送訊息//$channel->startTransaction(); //開始事務for($i=0; $i<5; ++$i){    echo "Send Message:".$ex->publish($message, $k_route)."\n";}//$channel->commitTransaction(); //提交事務$conn->disconnect();

需要注意的地方是:

queue對象有兩個方法可用於取訊息:consume和get。
前者是阻塞的,無訊息時會被掛起,適合迴圈中使用;

後者則是非阻塞的,取訊息時有則取,無則返回false。

測試

運行消費者:

運行生產者,發訊息:

消費者接收到訊息:

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