在PHP中如何使用消息列队
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | /** * 消息列队服务 * @author zhou.tingze * @example * -----------------------------------Create---------------------------------------- * $array = array('a','b','c','d'); * $this->load->library('amqp_service'); * $this->amqp_service->setSaveType('test_exchange', 'test_queue', 'test_router'); * $this->amqp_service->createMessageQueue($array); * -----------------------------------End------------------------------------------- * * -----------------------------------Get------------------------------------------- * $this->load->library('amqp_service'); * $this->amqp_service->setSaveType('test_exchange', 'test_queue', 'test_router'); * $message_queue = $this->amqp_service->getMessageQueue(); * var_dump($message_queue) * -----------------------------------End------------------------------------------- */ class Amqp_service extends Base_service{ public $conn ; public $exchange ; public $queue ; public $router ; function __construct(){ parent:: __construct(); //获取系统配置 $this ->load->config( 'app_config' , TRUE); $app_config = $this ->config->item( 'app_config' ); $this ->connect( $app_config [ 'amqp' ]); } /** * * 尝试连接Amqp服务 */ private function connect( $amqp_args ) { $this ->conn = new AMQPConnection( $amqp_args ); $this ->conn->connect(); if (! $this ->conn->isConnected()) { throw new Exception( 'Cannot connect to the broker.' ); } } /** * * 设定消息列队保存方式 * @param String $exchange_name 交换机名 * @param String $queue_name 消息列队名 * @param String $router_name 路由名 */ public function setSaveType( $exchange_name , $queue_name , $router_name ) { $this ->exchange = $exchange_name ; $this ->queue = $queue_name ; $this ->router = $router_name ; } /** * * 创建消息列队 * @param Array $array */ public function createMessageQueue( $array ) { //创建交换机 $channel = new AMQPChannel( $this ->conn); $ex = new AMQPExchange( $channel ); //交换机名 $ex ->setName( $this ->exchange); $ex ->setType(AMQP_EX_TYPE_DIRECT); $ex ->setFlags(AMQP_DURABLE | AMQP_AUTODELETE); $ex -> declare (); //创建消息列队 $q = new AMQPQueue( $channel ); //队列名 $q ->setName( $this ->queue); $q ->setFlags(AMQP_DURABLE | AMQP_AUTODELETE); $q -> declare (); //绑定交换机与队列,并指定路由键 $q ->bind( $this ->exchange, $this ->router); //消息发布 $channel ->startTransaction(); $message = json_encode( $array ); $ex ->publish( $message , $this ->router); $channel ->commitTransaction(); //$this->conn->disconnect(); } /** * * 获取消息列队 */ public function getMessageQueue() { try { //设置queue名称,使用exchange,绑定routingkey $channel = new AMQPChannel( $this ->conn); $q = new AMQPQueue( $channel ); $q ->setName( $this ->queue); $q ->setFlags(AMQP_DURABLE | AMQP_AUTODELETE); $q -> declare (); $q ->bind( $this ->exchange, $this ->router); //消息获取 $messages = $q ->get(AMQP_AUTOACK) ; $arr = array (); if ( $messages ){ $arr = json_decode( $messages ->getBody(), true ); } } catch (Exception $e ){ throw new Exception( $e ->getMessage()); } //$this->conn->disconnect(); return $arr ; } /* public function getAllMessageQueue() { //设置queue名称,使用exchange,绑定routingkey $channel = new AMQPChannel($this->conn); $q = new AMQPQueue($channel); $q->setName($this->queue); $q->setFlags(AMQP_DURABLE | AMQP_AUTODELETE); $q->declare(); $q->bind($this->exchange, $this->router); $this->conn->disconnect(); //阻塞模式获取消息列队 while(True){ $q->consume('processMessage'); //$q->consume('processMessage', AMQP_AUTOACK); //自动ACK应答 } } */ public function __destruct() { $this ->conn->disconnect(); } } /** * 消费回调函数 * 处理消息 * @param Object $envelope * @param Object $queue */ /* function processMessage($envelope, $queue) { $msg = $envelope->getBody(); echo $msg . '<br />'; //手动发送ACK应答 $queue->ack($envelope->getDeliveryTag()); } */ |
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