消息生产者代码
package com.gch.rabbit.queues; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.MessageProperties; import java.util.concurrent.TimeoutException; /** * 消息生产者 */ public class Task { private static final String TASK_QUEUE_NAME = "queue"; public static void main(String[] argv) throws java.io.IOException, TimeoutException { ConnectionFactory factory = new ConnectionFactory();//创建工厂 factory.setHost("localhost");//设置rabbitMQ地址 Connection connection = factory.newConnection();//用工厂创建连接 Channel channel = connection.createChannel();//用连接创建频道 channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);//在频道中申明一个队列 //分发消息 for(int i = 0 ; i < 5; i++){ String message = "Hello World! " + i; channel.basicPublish("", TASK_QUEUE_NAME, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes()); System.out.println("发送消息" + message); } channel.close(); connection.close(); } }1号队列代码
package com.gch.rabbit.queues; import com.rabbitmq.client.AMQP; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.Consumer; import com.rabbitmq.client.DefaultConsumer; import com.rabbitmq.client.Envelope; import java.io.IOException; public class Worker1 { private static final String TASK_QUEUE_NAME = "queue1"; public static void main(String[] argv) throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setHost("localhost"); final Connection connection = factory.newConnection(); final Channel channel = connection.createChannel(); channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null); System.out.println("1号队列正在等待消息..."); // 每次从队列中获取数量 channel.basicQos(1); final Consumer consumer = new DefaultConsumer(channel) { @Override public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException { String message = new String(body, "UTF-8"); System.out.println("1号队列接收到消息:" + message); try { doWork(message); } finally { System.out.println("1号队列处理完任务"); // 消息处理完成确认 //ACK机制 channel.basicAck(envelope.getDeliveryTag(), false);//设置 队列确认完成 } } }; // 消息消费完成确认 channel.basicConsume(TASK_QUEUE_NAME, false, consumer);//频道反馈确认队列消息完成 } private static void doWork(String task) { try { System.out.println("1号队列正在处理:" + task); Thread.sleep(1000); // 暂停1秒钟 } catch (InterruptedException _ignored) { Thread.currentThread().interrupt(); } } }
2号队列代码
package com.gch.rabbit.queues; import com.rabbitmq.client.AMQP; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.Consumer; import com.rabbitmq.client.DefaultConsumer; import com.rabbitmq.client.Envelope; import java.io.IOException; public class Worker2 { private static final String TASK_QUEUE_NAME = "queue2"; public static void main(String[] argv) throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setHost("localhost"); final Connection connection = factory.newConnection(); final Channel channel = connection.createChannel(); channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null); System.out.println("2号队列正在等待消息..."); // 每次从队列中获取数量 channel.basicQos(1); final Consumer consumer = new DefaultConsumer(channel) { @Override public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException { String message = new String(body, "UTF-8"); System.out.println("2号队列接收到消息:" + message); try { doWork(message); } finally { System.out.println("2号队列处理完任务"); // 消息处理完成确认 //ACK机制 channel.basicAck(envelope.getDeliveryTag(), false); } } }; // 消息消费完成确认 channel.basicConsume(TASK_QUEUE_NAME, false, consumer); } private static void doWork(String task) { try { System.out.println("2号队列正在处理:" + task); Thread.sleep(1000); // 暂停1秒钟 } catch (InterruptedException _ignored) { Thread.currentThread().interrupt(); } } }