Java RabbitMQ 完整示例 带联接断开恢复,发布接收完整示例

 

Java RabbitMQ 完整示例 带联接断开恢复,发布接收完整示例

import java.io.IOException;
import java.util.UUID;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.ConsumerCancelledException;
import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.QueueingConsumer.Delivery;
import com.rabbitmq.client.ShutdownSignalException;

/*
 * @rabbitmq数据测试
 * */
public class RabbitMQTest {

	// 队列名称
	private final static String QUEUE_NAME = "hello";

	// 创建对像
	ConnectionFactory factory;
	// 联接信息
	Connection connection;
	// 频道
	Channel channel = null;

	// 获取数据队列
	QueueingConsumer consumer = null;

	/**
	 * InitMQ 初始化MQ信息
	 * 
	 * 
	 * */
	public void InitMQ() {

		// 打开连接和创建频道，与发送端一样
		factory = new ConnectionFactory();
		factory.setHost("192.168.2.110");
		factory.setUsername("rabbitmq");
		factory.setPassword("rabbitmq");
		factory.setVirtualHost("/");
		factory.setPort(5672);
		// 关键所在，指定线程池
		ExecutorService service = Executors.newFixedThreadPool(10);
		factory.setSharedExecutor(service);
		// 设置自动恢复
		factory.setAutomaticRecoveryEnabled(true);
		factory.setNetworkRecoveryInterval(2);// 设置 没10s ，重试一次
		factory.setTopologyRecoveryEnabled(false);// 设置不重新声明交换器，队列等信息。
		try {
			connection = factory.newConnection();

			channel = connection.createChannel();
			// 声明队列，主要为了防止消息接收者先运行此程序，队列还不存在时创建队列。
			channel.queueDeclare(QUEUE_NAME, false, false, false, null);

			System.out
					.println(" [*] Waiting for messages. To exit press CTRL+C");

			// 设置一条条的应答
			channel.basicQos(0, 1, false);
			// 创建队列消费者
			consumer = new QueueingConsumer(channel);
			// 指定消费队列 ,第二个参数false表示不自动应答
			channel.basicConsume(QUEUE_NAME, false, consumer);

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (TimeoutException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * CycleSend 调用线程池循环发送数据

	 * 
	 * 
	 * */
	public void CycleSend() {
		// 使用线程池
		ScheduledExecutorService scheduledThreadPool = Executors
				.newScheduledThreadPool(5);
		// 定时执行任务
		scheduledThreadPool.scheduleAtFixedRate(new Runnable() {

			@Override
			public void run() {
				// 发送的消息
				String message = "hello world!" + UUID.randomUUID();
				// TODO Auto-generated method stub
				try {
					if (!channel.isOpen()) {
						// 初始化恢复
						// InitMQ();
						// System.out.println(" [x] 启动发送重联"+channel.isOpen());
					}

					if (channel.isOpen()) {
						channel.basicPublish("", QUEUE_NAME, null,
								message.getBytes());
					}
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();

				}

			}

		}, 1, 3, TimeUnit.SECONDS);

	}

	/**
	 * ReceiveMQ 从MQ中收取数据 

	 * 并且可以收获MQ信息数据
	 * 
	 * */
	public void ReceiveMQ() {

		Thread thr = new Thread(new Runnable() {

			@Override
			public void run() {

				Cycle();
			}
		});

		thr.start();

	}

	// 是否断开
	boolean isBroken = false;

	// 循环读取数据

	protected void Cycle() {
		while (true) {

			// nextDelivery是一个阻塞方法（内部实现其实是阻塞队列的take方法）
			QueueingConsumer.Delivery delivery;
			try {

				if (isBroken) {
					//channel.basicRecover();

					System.out.println(" [x] 开始接收数据可能会卡 ----"+ channel.isOpen());
					
				}
				if (channel.isOpen()) {
					delivery = consumer.nextDelivery();
					String message = new String(delivery.getBody());
					//应答
					channel.basicAck(delivery.getEnvelope().getDeliveryTag(),false);

					System.out.println(" [x] Received '" + message + "'");
				}
			} catch (ShutdownSignalException e) {
				try {

					if (channel.isOpen()) {
						// 异常情况恢复
						consumer = new QueueingConsumer(channel);
						channel.basicConsume(QUEUE_NAME, false, consumer);
						isBroken = false;
						System.out.println(" [x] 恢复成功 ----");
					}
					

				} catch (Exception e1) {

					isBroken = true;
					// TODO Auto-generated catch block
					e1.printStackTrace();
					System.out.println(" [x] 接收线程--- ShutdownSignalException-Exception");

				}

				// TODO Auto-generated catch block
				// e.printStackTrace();
			} catch (ConsumerCancelledException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
				System.out.println(" [x] 接收线程跳----ConsumerCancelledException");
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
				System.out.println(" [x] 接收线程跳出 ----Exception");

				break;
			}

		}

	}

}