Java操作RabbitMQ

簡單隊列

功能：一個生產者P發送消息到隊列Q,一個消費者C接收

P表示爲生產者 、C表示爲消費者 紅色表示隊列。

Maven

<dependencies>
	<dependency>
		<groupId>com.rabbitmq</groupId>
		<artifactId>amqp-client</artifactId>
		<version>3.6.5</version>
	</dependency>
</dependencies>

封裝Connection

public class MQConnectionUtils {

	public static Connection newConnection() throws IOException, TimeoutException {
		// 1.定義連接工廠
		ConnectionFactory factory = new ConnectionFactory();
		// 2.設置服務器地址
		factory.setHost("127.0.0.1");
		// 3.設置協議端口號
		factory.setPort(5672);
		// 4.設置vhost
		factory.setVirtualHost("/test001_host");
		// 5.設置用戶名稱
		factory.setUsername("test001");
		// 6.設置用戶密碼
		factory.setPassword("123456");
		// 7.創建新的連接
		Connection newConnection = factory.newConnection();
		return newConnection;
	}

}

生產者

public class Producer {
	private static final String QUEUE_NAME = "test_queue";

	public static void main(String[] args) throws IOException, TimeoutException {
		// 1.獲取連接
		Connection newConnection = MQConnectionUtils.newConnection();
		// 2.創建通道
		Channel channel = newConnection.createChannel();
		// 3.創建隊列聲明
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		String msg = "test_yushengjun110";
		System.out.println("生產者發送消息:" + msg);
		// 4.發送消息
		channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());
		channel.close();
		newConnection.close();
	}

}

消費者

public class Customer {
	private static final String QUEUE_NAME = "test_queue";

	public static void main(String[] args) throws IOException, TimeoutException {
		System.out.println("002");
		// 1.獲取連接
		Connection newConnection = MQConnectionUtils.newConnection();
		// 2.獲取通道
		Channel channel = newConnection.createChannel();
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		DefaultConsumer defaultConsumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
					throws IOException {
				String msgString = new String(body, "UTF-8");
				System.out.println("消費者獲取消息:" + msgString);
			}
		};
		// 3.監聽隊列
		channel.basicConsume(QUEUE_NAME, true, defaultConsumer);

	}

}

工作隊列

生產者

public class Producer {
	private static final String QUEUE_NAME = "test_queue";

	public static void main(String[] args) throws IOException, TimeoutException {
		// 1.獲取連接
		Connection newConnection = MQConnectionUtils.newConnection();
		// 2.創建通道
		Channel channel = newConnection.createChannel();
		// 3.創建隊列聲明
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		channel.basicQos(1);// 保證一次只分發一次 限制發送給同一個消費者 不得超過一條消息
		for (int i = 1; i <= 50; i++) {
			String msg = "test_yushengjun" + i;
			System.out.println("生產者發送消息:" + msg);
			// 4.發送消息
			channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());
		}
		channel.close();
		newConnection.close();
	}

}

消費者

public class Customer1 {
	private static final String QUEUE_NAME = "test_queue";

	public static void main(String[] args) throws IOException, TimeoutException {
		System.out.println("001");
		// 1.獲取連接
		Connection newConnection = MQConnectionUtils.newConnection();
		// 2.獲取通道
		final Channel channel = newConnection.createChannel();
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		channel.basicQos(1);// 保證一次只分發一次 限制發送給同一個消費者 不得超過一條消息
		DefaultConsumer defaultConsumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
					throws IOException {
				String msgString = new String(body, "UTF-8");
				System.out.println("消費者獲取消息:" + msgString);
				try {
					Thread.sleep(1000);
				} catch (Exception e) {

				} finally {
					// 手動回執消息
					channel.basicAck(envelope.getDeliveryTag(), false);
				}
			}
		};
		// 3.監聽隊列
		channel.basicConsume(QUEUE_NAME, false, defaultConsumer);

	}

}