Spring boot 整合 RabbitMQ 简单案例

1.RabbitMQ的安装

链接：https://blog.youkuaiyun.com/Kedongyu_/article/details/97888531 

2.简单队列

P：消息的生产者
C：消息的消费者
红色：队列

编写RabbitMQConfig配置类

@Configuration
public class RabbitMQConfig {

    @Value("${mq.server.host}")
    private String host;
    @Value("${mq.server.port}")
    private int port;
    @Value("${mq.username}")
    private String username;
    @Value("${mq.password}")
    private String password;
    @Value("${mq.virtual.host}")
    private String virtualHost;

    @Bean
    public Connection getConnection() throws Exception {
        //定义连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        //设置服务地址
        factory.setHost(host);
        //端口
        factory.setPort(port);
        //设置账号信息，用户名、密码、vhost
        factory.setVirtualHost(virtualHost);
        factory.setUsername(username);
        factory.setPassword(password);
        // 通过工程获取连接
        return factory.newConnection();
    }

}

配置文件

dubbo.registry.address = 106.14.226.75:2181

#server.port = :diko:{/remote/load/server.port}
server.port = :diko:{/remote/load/server.port}

mq.username = :diko:{/remote/load/mq.username}
mq.password = :diko:{/remote/load/mq.password}
mq.server.host = :diko:{/remote/load/mq.server.host}
mq.server.port = :diko:{/remote/load/mq.server.port}
mq.virtual.host = :diko:{/remote/load/mq.virtual.host}

 这里使用自定义配置中心，自行替换，

或者查看 Spring boot 通过zookeeper实现微服务配置中心：https://blog.youkuaiyun.com/Kedongyu_/article/details/97883214

生产者编码

@Component
public class Sender {
    private final static String QUEUE_NAME = "q_test_01";

    @Autowired
    private Connection connection;


    public void send(String message) throws Exception {
        // 从连接中创建通道
        Channel channel = connection.createChannel();

        // 声明（创建）队列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");
        //关闭通道和连接
        channel.close();
    }
}

 消费者编码

 

@Component
public class Receiver {
    private final static String QUEUE_NAME = "q_test_01";

    @Autowired
    private Connection connection;

    public String receive() throws IOException, InterruptedException {
        Channel channel = connection.createChannel();
// 声明队列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        channel.basicQos(1);
        // 定义队列的消费者
        QueueingConsumer consumer = new QueueingConsumer(channel);

        // 监听队列
        channel.basicConsume(QUEUE_NAME, false, consumer);

        QueueingConsumer.Delivery delivery = consumer.nextDelivery();

        String message = new String(delivery.getBody());
        System.out.println(" [x] Received '" + message + "'");
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        channel.close();
        return message;
    }
}

 测试

@RestController
@RequestMapping("/")
public class SendController {

    @Autowired
    private Sender sender;

    @Autowired
    private Receiver receiver;

    @RequestMapping("send")
    public String send(String message) throws Exception{
        sender.send(message);
        return "";
    }

    @RequestMapping("recv")
    public String recv() throws Exception{
        return receiver.receive();
    }
}

 运行结果

生产者：

 

Rabbit后台

消费者：