【RabbitMQ】RabbitMQ简单用例（八）

1、RabbitMQ客户端

<dependency>
	<groupId>com.rabbitmq</groupId>
	<artifactId>amqp-client</artifactId>
	<version>5.14.0</version>
</dependency>

2、工具类

public class ConnectUtils {
	public static Connection getConnection() throws IOException, TimeoutException {
		// 定义连接工厂
		ConnectionFactory factory = new ConnectionFactory();
		factory.setHost("test.rabbitmq.com");
		factory.setPort(5672);
		factory.setVirtualHost("/");
		factory.setUsername("admin");
		factory.setPassword("wsxadmin");
		Connection connection = null;
		// 通过工厂获取连接
		connection = factory.newConnection();
		return connection;
	}
}

3、简单模式

生产者

public class Send {
	private final static String QUEUE_NAME = "hello";

	public static void main(String[] argv) throws Exception {
		Connection connection = null;
		Channel channel = null;
		try {
			connection = ConnectUtils.getConnection();
			channel = connection.createChannel();
			channel.queueDeclare(QUEUE_NAME, false, false, false, null);
			String message = "Hello World!";
			for(int i =0; i < 100; i++) {
				channel.basicPublish("", QUEUE_NAME, null, (message+"=="+i).getBytes());
			}
			System.out.println(" [x] Sent '" + message + "'");
		} finally {
			if (channel != null) {
				channel.close();
			}
			if (connection != null) {
				connection.close();
			}
		}
	}
}

消费者

public class Recv {

	private final static String QUEUE_NAME = "hello";

	public static void main(String[] argv) throws Exception {
		Connection connection = null;
		Channel channel = null;
		connection = ConnectUtils.getConnection();
		channel = connection.createChannel();

		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		Consumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
					byte[] body) throws IOException {
				String msg = new String(body);
				System.out.println("consumer receive msg: " + msg);
			}
		};
		channel.basicConsume(QUEUE_NAME, true, consumer);
		System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
	}
}

4、订阅模式

public class Producer {

	private static final String EXCHANGE_NAME = "fanout_exchange";
	private static final String EXCHANGE_TYPE = "fanout";
	private static final String QUEUE1 = "QUEUE1";
	private static final String QUEUE2 = "QUEUE2";
	private static final String ROUTING_KEY = "";

	public static void main(String[] args) throws IOException, TimeoutException {
		// 注意：如果消费没有绑定交换机和队列，则消息会丢失
		Connection connection = null;
		Channel channel = null;
		try {
//			1.创建新的连接
			connection = ConnectUtils.getConnection();
			// 2.创建通道
			channel = connection.createChannel();
			// 3.绑定的交换机 参数1交互机名称 参数2 exchange类型
			channel.exchangeDeclare(EXCHANGE_NAME, EXCHANGE_TYPE);
			channel.queueBind(QUEUE1, EXCHANGE_NAME, ROUTING_KEY);
			channel.queueBind(QUEUE2, EXCHANGE_NAME, ROUTING_KEY);
			String msg = "fanout_exchange_msg";
			// 4.发送消息
			// param1：交换机
			// param2：队列名称/routingKey
			// param3：属性配置
			// param4：消息内容
			channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY, null, msg.getBytes());
		} finally {
			// 5.关闭通道、连接
			if (channel != null) {
				channel.close();
			}
			if (connection != null) {
				connection.close();
			}
		}
	}
}

消费者

public class Consumer implements Runnable {
	private String queueName;
	private String exchangeName;

	public Consumer(String queueName, String exchangeName) {
		this.queueName = queueName;
		this.exchangeName = exchangeName;
	}

	@Override
	public void run() {
		try {
			// 1.创建新的连接
			Connection connection = ConnectUtils.getConnection();
			// 2.创建通道
			Channel channel = connection.createChannel();
			// 3.消费者关联队列
			channel.queueDeclare(queueName, false, false, false, null);
			// 4.消费者绑定交换机 参数1 队列 参数2交换机 参数3 routingKey
			channel.queueBind(queueName, exchangeName, "");
			DefaultConsumer consumer = new DefaultConsumer(channel) {
				@Override
				public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
						byte[] body) throws IOException {
					String msg = new String(body, "UTF-8");
					System.out.println(Thread.currentThread().getName() + "fanout---消费者获取生产者消息:" + msg);
				}
			};
			// 5.消费者监听队列消息
			channel.basicConsume(queueName, true, consumer);
		} catch (IOException e) {
			e.printStackTrace();
		} catch (TimeoutException e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		new Thread(new Consumer("QUEUE1", "fanout_exchange")).start();
		new Thread(new Consumer("QUEUE2", "fanout_exchange")).start();
	}
}

5、路由模式

public class Producer {

	private static final String EXCHANGE_NAME = "direct_exchange";

	public static void main(String[] args) throws IOException, TimeoutException {

		// 注意：如果消费没有绑定交换机和队列，则消息会丢失

		Connection connection = null;
		Channel channel = null;
		try {
//			1.创建新的连接
			connection = ConnectUtils.getConnection();
			// 2.创建通道
			channel = connection.createChannel();
			// 3.绑定的交换机 参数1交互机名称 参数2 exchange类型
			channel.exchangeDeclare(EXCHANGE_NAME, "direct");
			String routingKey = "info";
			String msg = "direct_exchange_msg" + routingKey;
			// 4.发送消息
			// param1：交换机
			// param2：队列名称/routingKey
			// param3：属性配置
			// param4：消息内容
			channel.basicPublish(EXCHANGE_NAME, routingKey, null, msg.getBytes());
		} finally {
			// 5.关闭通道、连接
			if (channel != null) {
				channel.close();
			}
			if (connection != null) {
				connection.close();
			}
		}
	}
}

消费者

public class ConsumerEmailDirect {
	private static final String QUEUE_NAME = "consumer_direct_email";
	private static final String EXCHANGE_NAME = "direct_exchange";

	public static void main(String[] args) throws IOException, TimeoutException {
		// 1.创建新的连接
		Connection connection = ConnectUtils.getConnection();
		// 2.创建通道
		Channel channel = connection.createChannel();
		// 3.消费者关联队列
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		// 4.消费者绑定交换机 参数1 队列 参数2交换机 参数3 routingKey
		channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "error");
		channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "info");
		DefaultConsumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
					byte[] body) throws IOException {
				String msg = new String(body, "UTF-8");
				System.out.println("邮件消费者获取生产者消息:" + msg);
			}
		};
		// 5.消费者监听队列消息
		channel.basicConsume(QUEUE_NAME, true, consumer);
	}
}

6、主题模式

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.wcw.util.ConnectUtils;
public class Consumer implements Runnable {
	private String queueName;
	private String exchangeName;

	public Consumer(String queueName, String exchangeName) {
		this.queueName = queueName;
		this.exchangeName = exchangeName;
	}

	@Override
	public void run() {
		try {
			// 1.创建新的连接
			Connection connection = ConnectUtils.getConnection();
			// 2.创建通道
			Channel channel = connection.createChannel();
			channel.exchangeDeclare(EXCHANGE_NAME, EXCHANGE_TYPE);
			// 3.消费者关联队列
			channel.queueDeclare(queueName, false, false, false, null);
			// 4.消费者绑定交换机 参数1 队列 参数2交换机 参数3 routingKey
			//#匹配一个词或多个词，*只匹配一个词
			channel.queueBind(QUEUE3, EXCHANGE_NAME, "#.orange.*");
			channel.queueBind(QUEUE4, EXCHANGE_NAME, "lazy.#");
			channel.queueBind(QUEUE4, EXCHANGE_NAME, "*.*.rabbit");
			
			
			final String qn = this.queueName;
			DefaultConsumer consumer = new DefaultConsumer(channel) {
				@Override
				public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
						byte[] body) throws IOException {
					String msg = new String(body, "UTF-8");
					System.out.println(qn + "---消费者获取生产者消息:" + msg);
				}
			};
			// 5.消费者监听队列消息
			channel.basicConsume(queueName, true, consumer);
		} catch (IOException e) {
			e.printStackTrace();
		} catch (TimeoutException e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		new Thread(new Consumer("QUEUE3", "topic_exchange")).start();
		new Thread(new Consumer("QUEUE4", "topic_exchange")).start();
	}
}

消费者

public class Producer {

	protected static final String EXCHANGE_NAME = "topic_exchange";
	protected static final String EXCHANGE_TYPE = "topic";
	protected static final String QUEUE3 = "QUEUE3";
	protected static final String QUEUE4 = "QUEUE4";

	public static void main(String[] args) throws IOException, TimeoutException {
		// 注意：如果消费没有绑定交换机和队列，则消息会丢失
		Connection connection = null;
		Channel channel = null;
		try {
//			1.创建新的连接
			connection = ConnectUtils.getConnection();
			// 2.创建通道
			channel = connection.createChannel();
			// 3.绑定的交换机 参数1交互机名称 参数2 exchange类型
			channel.exchangeDeclare(EXCHANGE_NAME, EXCHANGE_TYPE);
			//#匹配一个词或多个词，*只匹配一个词
			channel.queueBind(QUEUE3, EXCHANGE_NAME, "#.orange.*");
			channel.queueBind(QUEUE4, EXCHANGE_NAME, "lazy.#");
			channel.queueBind(QUEUE4, EXCHANGE_NAME, "*.*.rabbit");
			String msg = "fanout_exchange_msg";
			// 4.发送消息
			// param1：交换机
			// param2：队列名称/routingKey
			// param3：属性配置
			// param4：消息内容
			channel.basicPublish(EXCHANGE_NAME, "aa.orange.1", null, "33".getBytes());
			//无队列接收
			channel.basicPublish(EXCHANGE_NAME, "aa.rabbit.1", null, msg.getBytes());
			channel.basicPublish(EXCHANGE_NAME, "lazy.orange.1", null, "33-44".getBytes());
			channel.basicPublish(EXCHANGE_NAME, "1.2.rabbit", null, "444".getBytes());
		} finally {
			// 5.关闭通道、连接
			if (channel != null) {
				channel.close();
			}
			if (connection != null) {
				connection.close();
			}
		}
	}
}