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基于 Redis 的订阅与发布

程序员文章站 2022-06-21 23:06:13
Github 仓库 demo-redis-subscribe 创建项目 $ composer create hyperf/biz-skeleton demo-redis-subscribe dev-master Installing hyperf/biz-skeleton (dev-master 1 ......

github 仓库

demo-redis-subscribe

创建项目

$ composer create hyperf/biz-skeleton demo-redis-subscribe dev-master
installing hyperf/biz-skeleton (dev-master 1eaa35a957cf704a5c9959c68e426a614c7598a2)
  - installing hyperf/biz-skeleton (dev-master 1eaa35a): cloning 1eaa35a957 from cache
created project in demo-redis-subscribe
> @php -r "file_exists('.env') || copy('.env.example', '.env');"
loading composer repositories with package information
updating dependencies (including require-dev)
package operations: 133 installs, 0 updates, 0 removals
  - installing ocramius/package-versions (1.4.0): loading from cache
  - installing hyperf/contract (dev-master 1624d1c): cloning 1624d1ce0e from cache
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  - installing hyperf/utils (dev-master c847116): cloning c847116cf9 from cache
  - installing psr/container (1.0.0): loading from cache
  - installing hyperf/pool (dev-master 5a67570): cloning 5a67570f71 from cache
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  - installing psr/log (1.1.0): loading from cache
  - installing php-amqplib/php-amqplib (v2.10.0): loading from cache
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hyperf/utils suggests installing symfony/var-dumper (required to use the dd function (^4.1).)
hyperf/utils suggests installing symfony/serializer (required to use symfonynormalizer (^4.3))
hyperf/utils suggests installing symfony/property-access (required to use symfonynormalizer (^4.3))
symfony/console suggests installing symfony/lock
guzzlehttp/psr7 suggests installing zendframework/zend-httphandlerrunner (emit psr-7 responses)
monolog/monolog suggests installing graylog2/gelf-php (allow sending log messages to a graylog2 server)
monolog/monolog suggests installing sentry/sentry (allow sending log messages to a sentry server)
monolog/monolog suggests installing doctrine/couchdb (allow sending log messages to a couchdb server)
monolog/monolog suggests installing ruflin/elastica (allow sending log messages to an elastic search server)
monolog/monolog suggests installing ext-amqp (allow sending log messages to an amqp server (1.0+ required))
monolog/monolog suggests installing ext-mongo (allow sending log messages to a mongodb server)
monolog/monolog suggests installing mongodb/mongodb (allow sending log messages to a mongodb server via php driver)
monolog/monolog suggests installing aws/aws-sdk-php (allow sending log messages to aws services like dynamodb)
monolog/monolog suggests installing rollbar/rollbar (allow sending log messages to rollbar)
monolog/monolog suggests installing php-console/php-console (allow sending log messages to google chrome)
symfony/translation suggests installing symfony/yaml
hyperf/database suggests installing doctrine/dbal (required to rename columns (^2.6).)
zendframework/zend-mime suggests installing zendframework/zend-mail (zend\mail component)
sebastian/global-state suggests installing ext-uopz (*)
phpunit/php-code-coverage suggests installing ext-xdebug (^2.6.0)
phpunit/phpunit suggests installing phpunit/php-invoker (^2.0)
phpunit/phpunit suggests installing ext-xdebug (*)
symfony/config suggests installing symfony/yaml (to use the yaml reference dumper)
symfony/dependency-injection suggests installing symfony/yaml
symfony/dependency-injection suggests installing symfony/expression-language (for using expressions in service container configuration)
symfony/dependency-injection suggests installing symfony/proxy-manager-bridge (generate service proxies to lazy load them)
paragonie/random_compat suggests installing ext-libsodium (provides a modern crypto api that can be used to generate random bytes.)
symfony/event-dispatcher suggests installing symfony/http-kernel
friendsofphp/php-cs-fixer suggests installing php-cs-fixer/phpunit-constraint-isidenticalstring (for isidenticalstring constraint.)
friendsofphp/php-cs-fixer suggests installing php-cs-fixer/phpunit-constraint-xmlmatchesxsd (for xmlmatchesxsd constraint.)
doctrine/cache suggests installing alcaeus/mongo-php-adapter (required to use legacy mongodb driver)
nette/bootstrap suggests installing tracy/tracy (to use configurator::enabletracy())
writing lock file
generating autoload files
ocramius/package-versions:  generating version class...
ocramius/package-versions: ...done generating version class
do you want to remove the existing vcs (.git, .svn..) history? [y,n]? y

  

定义队列

我们希望可以监听多个队列,所以便把队列名字额外定义出来。

<?php

declare(strict_types=1);
/**
 * this file is part of hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://doc.hyperf.io
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf-cloud/hyperf/blob/master/license
 */

namespace app\constants;

class channel
{
    const queue = 'channel.queue';

    const test = 'channel.test';

    public static function getarray()
    {
        return [
            self::queue,
            self::test,
        ];
    }
}

  

创建用于订阅的 redis 实例

 

更新配置

autoload/redis.php 中新增 subscriber 相关配置

<?php

declare(strict_types=1);
/**
 * this file is part of hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://doc.hyperf.io
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf-cloud/hyperf/blob/master/license
 */

return [
    'default' => [
        'host' => env('redis_host', 'localhost'),
        'auth' => env('redis_auth', null),
        'port' => (int) env('redis_port', 6379),
        'db' => (int) env('redis_db', 0),
        'pool' => [
            'min_connections' => 1,
            'max_connections' => 10,
            'connect_timeout' => 10.0,
            'wait_timeout' => 3.0,
            'heartbeat' => -1,
            'max_idle_time' => (float) env('redis_max_idle_time', 60),
        ],
    ],
    'subscriber' => [
        'host' => env('redis_host', 'localhost'),
        'auth' => env('redis_auth', null),
        'port' => (int) env('redis_port', 6379),
        'db' => (int) env('redis_db', 0),
        'options' => [
            \redis::opt_read_timeout => '-1',
        ],
        'pool' => [
            'min_connections' => 1,
            'max_connections' => 10,
            'connect_timeout' => 10.0,
            'wait_timeout' => 3.0,
            'heartbeat' => -1,
            'max_idle_time' => (float) env('redis_max_idle_time', 60),
        ],
    ],
];

  

增加 subscriber 客户端

<?php
<?php

declare(strict_types=1);
/**
 * this file is part of hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://doc.hyperf.io
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf-cloud/hyperf/blob/master/license
 */

namespace app\process;

use app\constants\channel;
use app\kernel\subscriber;
use hyperf\process\abstractprocess;
use hyperf\process\annotation\process;

/**
 * @process(name="redisconsumerprocess")
 */
class redisconsumerprocess extends abstractprocess
{
    public function handle(): void
    {
        $redis = di()->get(subscriber::class);

        $redis->subscribe(channel::getarray(), function ($instance, $channelname, $message) {
            var_dump($instance);
            var_dump($channelname);
            var_dump($message);

            // todo: 执行对应的消费操作
        });
    }
}

  

测试代码

修改 indexcontroller 如下

<?php

declare(strict_types=1);
/**
 * this file is part of hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://doc.hyperf.io
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf-cloud/hyperf/blob/master/license
 */

namespace app\controller;

use app\constants\channel;

class indexcontroller extends controller
{
    public function index()
    {
        $user = $this->request->input('user', 'hyperf');
        $method = $this->request->getmethod();

        $redis = di()->get(\redis::class);

        $redis->publish(channel::test, $user);

        return $this->response->success([
            'user' => $user,
            'method' => $method,
            'message' => 'hello hyperf.',
        ]);
    }
}

  

启动 server,测试结果

$ curl http://127.0.0.1:9501/
{"code":0,"data":{"user":"hyperf","method":"get","message":"hello hyperf."}}

  

终端显示如下
object(redis)#47173 (0) {
}
string(12) "channel.test"
string(6) "hyperf"

  

未完待续

...

 

更多学习内容请访问:

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