Springboot中使用RabbitMq

代码地址： https://gitee.com/Aes_yt/middleware-demo/tree/master/rabbitmq

安装RabbitMq1. docker拉取镜像

docker pull rabbitmq:3.9.29-management

2. 创建rabbitmq容器

docker run -d --name rabbitmq -p 5672:5672 -p 15672:15672 rabbitmq:3.9.29-management

3. 访问地址

http://{ip地址}:15672/，可以看到RabbitMq的管理后台界面。账号密码默认 guest

消息生产和消费rabbitmq-producer

1. 新建module，引入依赖

   org.springframework.bootspring-boot-starter-amqp

2. yaml配置地址

   spring:  rabbitmq:    host: 192.168.67.131    port: 5672    username: guest    password: guest    virtual-host: /

3. 配置交换机

   @Configurationpublic class RabbitMqConfig {    /*定义交换机名称*/    public static final String USER_INFO_EXCHANGE_NAME = "user_info_exchange";    @Bean    public Exchange userInfoExchange() {        return ExchangeBuilder.topicExchange(USER_INFO_EXCHANGE_NAME).durable(true).build();    }}

4. 发送消息

       @Test    public void sendMessage() {        String registerMsg = "user register..." + new Date();        // 1. 发送一条注册消息        rabbitTemplate.convertAndSend(RabbitMqConfig.USER_INFO_EXCHANGE_NAME,                "user.register.user1", registerMsg, msg -> {                    msg.getMessageProperties().setDeliveryMode(MessageDeliveryMode.PERSISTENT);                    return msg;                });        log.info("消息发送完成:{}", registerMsg);        String loginMsg = "user login..." + new Date();        // 2. 发送一条登录消息        rabbitTemplate.convertAndSend(RabbitMqConfig.USER_INFO_EXCHANGE_NAME,                "user.login.user1", loginMsg, msg -> {                    msg.getMessageProperties().setDeliveryMode(MessageDeliveryMode.PERSISTENT);                    return msg;                });        log.info("消息发送完成:{}", loginMsg);    }

rabbitmq-consumer

1. 新建module，引入依赖

   org.springframework.bootspring-boot-starter-amqp

2. yaml配置地址

   spring:  rabbitmq:    host: 192.168.67.131    port: 5672    username: guest    password: guest    virtual-host: /

3. 配置队列绑定关系

   @Configurationpublic class RabbitMqConfig {    @Value("${spring.rabbitmq.host}")    private String host;    @Value("${spring.rabbitmq.port}")    private Integer port;    @Value("${spring.rabbitmq.username}")    private String username;    @Value("${spring.rabbitmq.password}")    private String password;    /*定义交换机名称*/    public static final String USER_INFO_EXCHANGE_NAME = "user_info_exchange";    /*定义队列名称*/    public static final String USER_REGISTER_QUEUE_NAME = "user_register_queue";    public static final String USER_LOGIN_QUEUE_NAME = "user_login_queue";    public static final String USER_REGISTER_ROUTING_KEY = "user.register.#";    public static final String USER_LOGIN_ROUTING_KEY = "user.login.#";    @Bean    public Exchange userInfoExchange() {        return ExchangeBuilder.topicExchange(USER_INFO_EXCHANGE_NAME).durable(true).build();    }    @Bean    public Queue userRegisterQueue() {        return QueueBuilder.durable(USER_REGISTER_QUEUE_NAME).build();    }    @Bean    public Queue userLoginQueue() {        return QueueBuilder.durable(USER_LOGIN_QUEUE_NAME).build();    }    @Bean    public Binding userRegisterBinding() {        return BindingBuilder.bind(userRegisterQueue()).to(userInfoExchange()).with(USER_REGISTER_ROUTING_KEY).noargs();    }    @Bean    public Binding userLoginBinding() {        return BindingBuilder.bind(userLoginQueue()).to(userInfoExchange()).with(USER_LOGIN_ROUTING_KEY).noargs();    }}

4. 监听器

   @Component@Slf4jpublic class UserInfoListener {    @RabbitListener(queues = RabbitMqConfig.USER_REGISTER_QUEUE_NAME)    public void userRegister(String msg){        log.info(msg);    }    @RabbitListener(queues = RabbitMqConfig.USER_LOGIN_QUEUE_NAME)    public void userLogin(String msg){        log.info(msg);    }}

5. 结果

   启动producer项目和consumer项目，producer发送消息，consumer接收到消息:

   producer:

   2023-07-08 10:26:10.660  INFO 7432 --- [main] com.yt.rabbit.RabbitProducerTest: 消息发送完成:user register...Sat Jul 08 10:26:10 CST 20232023-07-08 10:26:10.663  INFO 7432 --- [main] com.yt.rabbit.RabbitProducerTest: 消息发送完成:user login...Sat Jul 08 10:26:10 CST 2023

   consumer:

   2023-07-08 10:26:10.661  INFO 25108 --- [ntContainer#1-1] c.yt.rabbitmq.listener.UserInfoListener  : user register...Sat Jul 08 10:26:10 CST 20232023-07-08 10:26:10.665  INFO 25108 --- [ntContainer#0-1] c.yt.rabbitmq.listener.UserInfoListener  : user login...Sat Jul 08 10:26:10 CST 2023

交换器类型

交换器类型有四种，fanout，topic，direct，headers。
接下来在代码中创建三种交换器类型，对应的routingKey和queue绑定如表格所示。发送对应消息，看看是否能接收到 [Y/N]。headers类型不演示。

direct 的Routingkey是全匹配，通配符不起作用，所以direct_test_queue2没有接收到消息。
topic 的通配符，*正好匹配一个词，#可以匹配一个或多个词，所以topic_test_queue3没有接收到消息。