rabbitmq手动确认ack

【README】

参考 https://blog.csdn.net/u012943767/article/details/79300673 ；

【0】声明交换机，队列 与绑定

/**
 * 交换机，队列声明与绑定 
 */
public class AckDeclarer {
	/** 确认交换机 */
	public static final String ACK_EXCHANGE2 = "ACK_EXCHNAGE2";
	/** 确认队列 */
	public static final String ACK_QUEUE2 = "ACK_QUEUE2";
	/** 路由键  */
	public static final String ACK_ROUTE2 = "ACK_ROUTE2";
	
//	四种Exchange 模式
//    direct ：需要生产者和消费者绑定相同的Exchange和routing key。
//    fanout：广播模式需要生产者消费者绑定相同的Exchange。
//    topic：支持模糊匹配的广播模式以点分隔，*表示一个单词，#表示任意数量（零个或多个）单词。
//    header：根据生产者和消费者的header中信息进行匹配性能较差 ，x-match [all 匹配所有/any 任意一个]。
	
	public static void main(String[] args) throws Exception {
		/* 获取连接*/
		Connection conn = RBConnectionUtil.getConn();
		// 创建信道 
		Channel channel = conn.createChannel(); 
		/* 声明交换机 */
		channel.exchangeDeclare(ACK_EXCHANGE2, BuiltinExchangeType.FANOUT);
		/* 声明队列 */
		channel.queueDeclare(ACK_QUEUE2, true, false, false, null); 
		System.out.println(String.format("声明交换机【%s】，队列【%s】成功", ACK_EXCHANGE2, ACK_QUEUE2));
		
		/* 把队列绑定到交换机 */
		channel.queueBind(ACK_QUEUE2, ACK_EXCHANGE2, ACK_ROUTE2);
		
		/* 关闭信道和连接 */
		channel.close();
		conn.close(); 
	}
}

【1】生产者

/**
 * 消息确认生产者
 */
public class AckProducer {
	public static void main(String[] args) throws Exception {
		/* 获取连接*/
		Connection conn = RBConnectionUtil.getConn();
		// 创建信道 
		Channel channel = conn.createChannel();
		
		String[] messages = new String[]{
				"first.-04130828"
				, "second..-04130828"
				, "third...-04130828"
				, "fourth....-04130828"
				, "fiveth.....-04130828"
				, "6th.....-04130828"
				, "7th.....-04130828"
				, "8th.....-04130828"
				, "9th.....-04130828"
				, "10th.....-04130828"
			};
		for (String msg : messages) {
			channel.basicPublish(AckDeclarer.ACK_EXCHANGE2, AckDeclarer.ACK_ROUTE2, null, msg.getBytes());
			System.out.println(msg + " is sent"); 
		} 
		System.out.println("消息发送完成"); 
		channel.close(); 
		conn.close();
	}
}

【2】自动确认消费者

/**
 * 自动确认消费者
 */
public class AutoAckConsumer {
	public static void main(String[] args) throws Exception {
		/* 获取连接*/
		Connection conn = RBConnectionUtil.getConn();
		// 创建信道 
		Channel channel = conn.createChannel();
		
		System.out.println("等待消费1");
		Consumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope,
					BasicProperties properties, byte[] body) throws IOException {
				String msg = new String(body, "UTF-8");
				System.out.println("接收到的消息=" + msg); 
				try {
					doWork(msg);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
			
		};
		channel.basicConsume(AckDeclarer.ACK_QUEUE2, true, consumer);// 为true自动确认 
	}
	 private static void doWork(String task) throws InterruptedException {
	        for (char ch : task.toCharArray()) {
	            if (ch == '.') Thread.sleep(1000);
	        }
	    }
}

【3】手动确认消费者

/**
 * 手动确认消费者
 */
public class ManualAckConsumer {
	public static void main(String[] args) throws Exception {
		/* 获取连接*/
		Connection conn = RBConnectionUtil.getConn();
		// 创建信道 
		Channel channel = conn.createChannel();
		
		System.out.println("手动确认消费者等待消费1");
		Consumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope,
					BasicProperties properties, byte[] body) throws IOException {
				String msg = new String(body, "UTF-8");
				System.out.println("接收到的消息=" + msg); 
				try {
					doWork(msg);
				} catch (InterruptedException e) {
					e.printStackTrace();
				} finally {
					System.out.println("消费done,手动确认ack,msg=" + msg);
					channel.basicAck(envelope.getDeliveryTag(), false); // 手动确认
				}
			}
		};
		// 手动确认，向rabbitmq 服务器手动发送ack成功消费标识
		channel.basicConsume(AckDeclarer.ACK_QUEUE2, false, consumer);// 为false手动确认 
	}
	 private static void doWork(String task) throws InterruptedException {
	        for (char ch : task.toCharArray()) {
	            if (ch == '.') Thread.sleep(1000);
	        }
	    }
}

手动确认消费者日志 

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
手动确认消费者等待消费1
接收到的消息=first.-04130828
消费done,手动确认ack,msg=first.-04130828
接收到的消息=second..-04130828
消费done,手动确认ack,msg=second..-04130828
接收到的消息=third...-04130828
消费done,手动确认ack,msg=third...-04130828
接收到的消息=fourth....-04130828
消费done,手动确认ack,msg=fourth....-04130828
接收到的消息=fiveth.....-04130828
消费done,手动确认ack,msg=fiveth.....-04130828
接收到的消息=6th.....-04130828
消费done,手动确认ack,msg=6th.....-04130828
接收到的消息=7th.....-04130828
消费done,手动确认ack,msg=7th.....-04130828
接收到的消息=8th.....-04130828
消费done,手动确认ack,msg=8th.....-04130828
接收到的消息=9th.....-04130828
消费done,手动确认ack,msg=9th.....-04130828
接收到的消息=10th.....-04130828
消费done,手动确认ack,msg=10th.....-04130828