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PHP实现基于Redis的MessageQueue队列封装操作示例

更新时间:2020-08-14 07:12:01 作者:startmvc
本文实例讲述了PHP实现基于Redis的MessageQueue队列封装操作。分享给大家供大家参考,具体如

本文实例讲述了PHP实现基于Redis的MessageQueue队列封装操作。分享给大家供大家参考,具体如下:

Redis的链表List可以用来做链表,高并发的特性非常适合做分布式的并行消息传递。

项目地址:https://github.com/huyanping/Zebra-PHP-Framework

左进右出


$redis->lPush($key, $value);
$redis->rPop($key);

以下程序已在生产环境中正式使用。

基于Redis的PHP消息队列封装


<?php
/**
 * Created by PhpStorm.
 * User: huyanping
 * Date: 14-8-19
 * Time: 下午12:10
 *
 * 基于Redis的消息队列封装
 */
namespace Zebra\MessageQueue;
class RedisMessageQueue implements IMessageQueue
{
 protected $redis_server;
 protected $server;
 protected $port;
 /**
 * @var 消息队列标志
 */
 protected $key;
 /**
 * 构造队列,创建redis链接
 * @param $server_config
 * @param $key
 * @param bool $p_connect
 */
 public function __construct($server_config = array('IP' => '127.0.0.1', 'PORT' => '6379'), $key = 'redis_message_queue', $p_connect = false)
 {
 if (empty($key))
 throw new \Exception('message queue key can not be empty');
 $this->server = $server_config['IP'];
 $this->port = $server_config['PORT'];
 $this->key = $key;
 $this->check_environment();
 if ($p_connect) {
 $this->pconnect();
 } else {
 $this->connect();
 }
 }
 /**
 * 析构函数,关闭redis链接,使用长连接时,最好主动调用关闭
 */
 public function __destruct()
 {
 $this->close();
 }
 /**
 * 短连接
 */
 private function connect()
 {
 $this->redis_server = new \Redis();
 $this->redis_server->connect($this->server, $this->port);
 }
 /**
 * 长连接
 */
 public function pconnect()
 {
 $this->redis_server = new \Redis();
 $this->redis_server->pconnect($this->server, $this->port);
 }
 /**
 * 关闭链接
 */
 public function close()
 {
 $this->redis_server->close();
 }
 /**
 * 向队列插入一条信息
 * @param $message
 * @return mixed
 */
 public function put($message)
 {
 return $this->redis_server->lPush($this->key, $message);
 }
 /**
 * 向队列中插入一串信息
 * @param $message
 * @return mixed
 */
 public function puts(){
 $params = func_get_args();
 $message_array = array_merge(array($this->key), $params);
 return call_user_func_array(array($this->redis_server, 'lPush'), $message_array);
 }
 /**
 * 从队列顶部获取一条记录
 * @return mixed
 */
 public function get()
 {
 return $this->redis_server->lPop($this->key);
 }
 /**
 * 选择数据库,可以用于区分不同队列
 * @param $database
 */
 public function select($database)
 {
 $this->redis_server->select($database);
 }
 /**
 * 获得队列状态,即目前队列中的消息数量
 * @return mixed
 */
 public function size()
 {
 return $this->redis_server->lSize($this->key);
 }
 /**
 * 获取某一位置的值,不会删除该位置的值
 * @param $pos
 * @return mixed
 */
 public function view($pos)
 {
 return $this->redis_server->lGet($this->key, $pos);
 }
 /**
 * 检查Redis扩展
 * @throws Exception
 */
 protected function check_environment()
 {
 if (!\extension_loaded('redis')) {
 throw new \Exception('Redis extension not loaded');
 }
 }
}

如果需要一次写入多个队列,可以使用如下调用方式:


<?php
$redis = new RedisMessageQueue();
$redis->puts(1, 2, 3, 4);
$redis->puts(5, 6, 7, 8, 9);

模仿HTTPSQS输出结果的封装如下,提供了写入位置和读取位置记录的功能:


<?php
/**
 * Created by PhpStorm.
 * User: huyanping
 * Date: 14-9-5
 * Time: 下午2:16
 *
 * 附加了队列状态信息的RedisMessageQueue
 */
namespace Zebra\MessageQueue;
class RedisMessageQueueStatus extends RedisMessageQueue {
 protected $record_status;
 protected $put_position;
 protected $get_position;
 public function __construct(
 $server_config = array('IP' => '127.0.0.1', 'PORT' => '6379'),
 $key = 'redis_message_queue',
 $p_connect = false,
 $record_status=true
 ){
 parent::__construct($server_config, $key, $p_connect);
 $this->record_status = $record_status;
 $this->put_position = $this->key . '_put_position';
 $this->get_position = $this->key . '_get_position';
 }
 public function get(){
 if($queue = parent::get()){
 $incr_result = $this->redis_server->incr($this->get_position);
 if(!$incr_result) throw new \Exception('can not mark get position,please check the redis server');
 return $queue;
 }else{
 return false;
 }
 }
 public function put($message){
 if(parent::put($message)){
 $incr_result = $this->redis_server->incr($this->put_position);
 if(!$incr_result) throw new \Exception('can not mark put position,please check the redis server');
 return true;
 }else{
 return false;
 }
 }
 public function puts_status(){
 $message_array = func_get_args();
 $result = call_user_func_array(array($this, 'puts'), $message_array);
 if($result){
 $this->redis_server->incrBy($this->put_position, count($message_array));
 return true;
 }
 return false;
 }
 public function size(){
 return $this->redis_server->lSize($this->key);
 }
 public function status(){
 $status['put_position'] = ($put_position = $this->redis_server->get($this->put_position)) ? $put_position : 0;
 $status['get_position'] = ($get_position = $this->redis_server->get($this->get_position)) ? $get_position : 0;
 $status['unread_queue'] = $this->size();
 $status['queue_name'] = $this->key;
 $status['server'] = $this->server;
 $status['port'] = $this->port;
 return $status;
 }
 public function status_normal(){
 $status = $this->status();
 $message = 'Redis Message Queue' . PHP_EOL;
 $message .= '-------------------' . PHP_EOL;
 $message .= 'Message queue name:' . $status['queue_name'] . PHP_EOL;
 $message .= 'Put position of queue:' . $status['put_position'] . PHP_EOL;
 $message .= 'Get position of queue:' . $status['get_position'] . PHP_EOL;
 $message .= 'Number of unread queue:' . $status['unread_queue'] . PHP_EOL;
 return $message;
 }
 public function status_json(){
 return \json_encode($this->status());
 }
}