SpringBoot：接入RabbitMQ使用producer和consumer（基礎使用）

• pom

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

• Sender

import java.util.HashMap;
import java.util.Map;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class Sender {

	
	public static void main(String[] args) throws Exception {
		
		//	1 創建ConnectionFactory
		ConnectionFactory connectionFactory = new ConnectionFactory();
		// RabbitMQ的服務器地址
		connectionFactory.setHost("127.0.0.1");    
		connectionFactory.setPort(5672);
		connectionFactory.setVirtualHost("/");
		
		//	2 創建Connection
		Connection connection = connectionFactory.newConnection();
		//	3 創建Channel
		Channel channel = connection.createChannel();  
		//	4 聲明
		String queueName = "test001";  
        //	參數: queue名字,是否持久化,獨佔的queue（僅供此連接）,不使用時是否自動刪除, 其他參數
		channel.queueDeclare(queueName, false, false, false, null);
		
		Map<String, Object> headers = new HashMap<String, Object>();
		
		AMQP.BasicProperties props = new AMQP.BasicProperties.Builder()
		.deliveryMode(2)
		.contentEncoding("UTF-8")
		.headers(headers).build();
		
		
		for(int i = 0; i < 5;i++) {
			String msg = "Hello World RabbitMQ " + i;
			channel.basicPublish("", queueName , props , msg.getBytes()); 			
		}

		channel.close();
		connection.close();

	}
	
}

• Receiver

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

public class Receiver {

	public static void main(String[] args) throws Exception {
		
        ConnectionFactory connectionFactory = new ConnectionFactory() ;  
        
        connectionFactory.setHost("127.0.0.1");
        connectionFactory.setPort(5672);
		connectionFactory.setVirtualHost("/");
		
        connectionFactory.setAutomaticRecoveryEnabled(true);
        connectionFactory.setNetworkRecoveryInterval(3000);
        Connection connection = connectionFactory.newConnection();
        
        Channel channel = connection.createChannel();  
        
        String queueName = "test001";  
        //	durable 是否持久化消息
        channel.queueDeclare(queueName, false, false, false, null);  
        QueueingConsumer consumer = new QueueingConsumer(channel);
        //	參數：隊列名稱、是否自動ACK、Consumer
        channel.basicConsume(queueName, true, consumer);  
        //	循環獲取消息  
        while(true){  
            //	獲取消息，如果沒有消息，這一步將會一直阻塞  
            Delivery delivery = consumer.nextDelivery();  
            String msg = new String(delivery.getBody());    
            System.out.println("收到消息：" + msg);  
        } 
	}
}

我們可以試着run一下Sender，再run一下Receiver，可以在控制檯看到發送的5條消息