RabbitMQ高级应用

producer：

package com.toov5.Producer;

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

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.toov5.utils.MQConnectionUtils;

public class Producer {
    // 队列名称
    private static final String UEUE_NAME = "test_queue";

    public static void main(String[] args) throws IOException, TimeoutException {
        // 创建新的连接
        Connection connection = MQConnectionUtils.newConnection();
        // 创建Channel
        Channel channel = connection.createChannel();
        // 创建队列
        channel.queueDeclare(UEUE_NAME, false, false, false, null);
        channel.basicQos(1); // 保证 取一个消费  队列给消费者发送消息时候 一个消息
        for (int i = 0; i < 10; i++) {
            // 创建message
            String msg = "toov5_message";
            System.out.println("生产者投递消息" + msg + i);
            // 生产者发送消息
            channel.basicPublish("", UEUE_NAME, null, msg.getBytes());
        }
        // 关闭通道和连接
        channel.close();
        connection.close();

    }
}

Consumer1

package com.toov5.Consumer;

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

import com.rabbitmq.client.AMQP.BasicProperties;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.toov5.utils.MQConnectionUtils;

public class Consumer1 {

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

        public static void main(String[] args) throws IOException, TimeoutException {
            System.out.println("消费者启动..........1");
            //创建新的连接
        Connection connection = MQConnectionUtils.newConnection();
           //创建Channel
            final Channel channel = connection.createChannel();
            // 消费者关联队列
             channel.queueDeclare(QUEUE_NAME, false, false, false, null);
             channel.basicQos(1);
              DefaultConsumer defaultConsumerr = new DefaultConsumer(channel) {
                  //监听获取消息
                    @Override
                    public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties,
                            byte[] body) throws IOException {
                        String msg =new String(body,"UTF-8");
                        System.out.println("消费者获取生产者消息："+msg);
                        try {
                            //模拟应答等待时间
                            Thread.sleep(1000);
                        } catch (Exception e) {

                        }finally {
                           channel.basicAck(envelope.getDeliveryTag(), false);  //手动应答 告诉消息队列服务器 消费成功
                        }
                    }
              };
            //牵手模式设置  默认自动应答模式  true:自动应答模式
              channel.basicConsume(QUEUE_NAME, false, defaultConsumerr);//    fanse手动应答          

        }
}

Consumer2

package com.toov5.Consumer;

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

import com.rabbitmq.client.AMQP.BasicProperties;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.toov5.utils.MQConnectionUtils;

public class Consumer2 {

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

        public static void main(String[] args) throws IOException, TimeoutException {
            System.out.println("消费者启动..........2");
            //创建新的连接
        Connection connection = MQConnectionUtils.newConnection();
           //创建Channel
            final Channel channel = connection.createChannel();
            // 消费者关联队列
             channel.queueDeclare(QUEUE_NAME, false, false, false, null);
              channel.basicQos(1);
              DefaultConsumer defaultConsumerr = new DefaultConsumer(channel) {
                  //监听获取消息
                    @Override
                    public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties,
                            byte[] body) throws IOException {
                        String msg =new String(body,"UTF-8");
                        System.out.println("消费者获取生产者消息："+msg);
                        try {
                            //模拟应答等待时间
                            Thread.sleep(300);
                        } catch (Exception e) {

                        }finally {
                        channel.basicAck(envelope.getDeliveryTag(), false);  //手动应答 告诉消息队列服务器 消费成功
                        }
                    }
              };
            //牵手模式设置  默认自动应答模式  true:自动应答模式
              channel.basicConsume(QUEUE_NAME, false, defaultConsumerr);//    fanse手动应答
        }
}

运行结果：

睡眠少的（执行快的） 指定的多

 注意 每个消费者 必须要应答 一下！ 队列服务器没有收到应答 就不会发送下一个给消费者~