最も一般的に3つのモードの使用メッセージの解析のRabbitMQ

プログラミング 2019-12-15 20:11:07 訪問数: null

ダイレクトモード

  • 直接交換RouteKeyに送信されたすべてのメッセージは、指定されたキューに転送します。

  • ダイレクトモードは、Exchange RabbitMQの来使用することができます：デフォルトのExchangeは、どんな所（バインド）操作をバインドする必要はありません。

  • メッセージングとき、RouteKeyは正確に一致する必要があり、そうでない場合は、メッセージが廃棄され、受信するためのキューになります

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class DirectProducer {
    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");

        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_direct_exchange";
        String routingKey = "item.direct";

        //5. 发送
        String msg = "this is direct msg";
        channel.basicPublish(exchangeName, routingKey, null, msg.getBytes());
        System.out.println("Send message : " + msg);

        //6. 关闭连接
        channel.close();
        connection.close();
    }
}
复制代码
import com.rabbitmq.client.*;
import java.io.IOException;

public class DirectConsumer {

    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");
        factory.setAutomaticRecoveryEnabled(true);
        factory.setNetworkRecoveryInterval(3000);
      
        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_direct_exchange";
        String queueName = "test_direct_queue";
        String routingKey = "item.direct";
        channel.exchangeDeclare(exchangeName, "direct", true, false, null);
        channel.queueDeclare(queueName, false, false, false, null);

        //一般不用代码绑定，在管理界面手动绑定
        channel.queueBind(queueName, exchangeName, routingKey);

        //5. 创建消费者并接收消息
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body)
                    throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };

        //6. 设置 Channel 消费者绑定队列
        channel.basicConsume(queueName, true, consumer);

    }
}
复制代码
 Send message : this is direct msg
 
 [x] Received 'this is direct msg'
Topic 模式
复制代码

トピックモード

ワイルドカードファジーマッチングを使用することができます

  • 1つ以上の単語に一致するシンボル「＃」

  • 記号「*」は劣らず、より多くの単語と一致しません

例えば：

  • 「「log.info.oaログインします。＃に一致させることができます」」

  • 「ログインします。*は、」のみ「log.erro」に一致します

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class TopicProducer {

    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");

        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_topic_exchange";
        String routingKey1 = "item.update";
        String routingKey2 = "item.delete";
        String routingKey3 = "user.add";

        //5. 发送
        String msg = "this is topic msg";
        channel.basicPublish(exchangeName, routingKey1, null, msg.getBytes());
        channel.basicPublish(exchangeName, routingKey2, null, msg.getBytes());
        channel.basicPublish(exchangeName, routingKey3, null, msg.getBytes());
        System.out.println("Send message : " + msg);

        //6. 关闭连接
        channel.close();
        connection.close();
    }
}
复制代码
import com.rabbitmq.client.*;
import java.io.IOException;

public class TopicConsumer {

    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");
        factory.setAutomaticRecoveryEnabled(true);
        factory.setNetworkRecoveryInterval(3000);

        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_topic_exchange";
        String queueName = "test_topic_queue";
        String routingKey = "item.#";
        channel.exchangeDeclare(exchangeName, "topic", true, false, null);
        channel.queueDeclare(queueName, false, false, false, null);

        //一般不用代码绑定，在管理界面手动绑定
        channel.queueBind(queueName, exchangeName, routingKey);

        //5. 创建消费者并接收消息
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body)
                    throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };
        //6. 设置 Channel 消费者绑定队列
        channel.basicConsume(queueName, true, consumer);

    }
}
复制代码
Send message : this is topc msg

[x] Received 'this is topc msg'
[x] Received 'this is topc msg'
复制代码

ファンアウトモード

ルーティングキーを処理しない、単にキューは、すべてのメッセージを送信するようにスイッチに結合するキューは為替に転送してバインドされます切り替えます。ファンアウトスイッチ転送メッセージが最速です。

import com.rabbitmq.client.*;
import java.io.IOException;

public class FanoutConsumer {
    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");
        factory.setAutomaticRecoveryEnabled(true);
        factory.setNetworkRecoveryInterval(3000);

        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_fanout_exchange";
        String queueName = "test_fanout_queue";
        String routingKey = "item.#";
        channel.exchangeDeclare(exchangeName, "fanout", true, false, null);
        channel.queueDeclare(queueName, false, false, false, null);

        //一般不用代码绑定，在管理界面手动绑定
        channel.queueBind(queueName, exchangeName, routingKey);

        //5. 创建消费者并接收消息
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body)
                    throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };

        //6. 设置 Channel 消费者绑定队列
        channel.basicConsume(queueName, true, consumer);
    }
}
复制代码
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class FanoutProducer {

    public static void main(String[] args) throws Exception {
        //1. 创建一个 ConnectionFactory 并进行设置
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");

        //2. 通过连接工厂来创建连接
        Connection connection = factory.newConnection();

        //3. 通过 Connection 来创建 Channel
        Channel channel = connection.createChannel();

        //4. 声明
        String exchangeName = "test_fanout_exchange";
        String routingKey1 = "item.update";
        String routingKey2 = "";
        String routingKey3 = "ookjkjjkhjhk";//任意routingkey

        //5. 发送
        String msg = "this is fanout msg";
        channel.basicPublish(exchangeName, routingKey1, null, msg.getBytes());
        channel.basicPublish(exchangeName, routingKey2, null, msg.getBytes());
        channel.basicPublish(exchangeName, routingKey3, null, msg.getBytes());
        System.out.println("Send message : " + msg);

        //6. 关闭连接
        channel.close();
        connection.close();
    }
}
复制代码
Send message : this is fanout msg

[x] Received 'this is fanout msg'
[x] Received 'this is fanout msg'
[x] Received 'this is fanout msg'
复制代码

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