消息中间件RabbitMQ---SpringBoot整合RabbitMQ【三】

1、SpringBoot整合

1.1、pom依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>

1.2、配置文件

# RabbitMQ配置
spring.rabbitmq.host=192.168.202.211
spring.rabbitmq.port=5672
# 虚拟主机配置
spring.rabbitmq.virtual-host=/

1.3、启动类开启

@EnableRabbit
@SpringBootApplication
public class GulimallOrderApplication {

    public static void main(String[] args) {
        SpringApplication.run(GulimallOrderApplication.class, args);
    }

}

2、单元测试

2.1 创建交换器

    /**
     * 1、如何创建Exchange、Queue、Binding
     *      1）、使用AmqpAdmin进行创建
     */
    @Test
    public void createExchange() {
        Exchange directExchange = new DirectExchange("hello-java-exchange",true,false);
        amqpAdmin.declareExchange(directExchange);
        log.info("Exchange[{}]创建成功：","hello-java-exchange");
    }

使用代码创建和工具创建类似。

创建结果

2.2 创建队列

    @Test
    public void testCreateQueue() {
        Queue queue = new Queue("hello-java-queue",true,false,false);
        amqpAdmin.declareQueue(queue);
        log.info("Queue[{}]创建成功：","hello-java-queue");
    }

创建结果

2.3 创建绑定

    @Test
    public void createBinding() {

        Binding binding = new Binding("hello-java-queue",
                Binding.DestinationType.QUEUE,
                "hello-java-exchange",
                "hello.java",
                null);
        amqpAdmin.declareBinding(binding);
        log.info("Binding[{}]创建成功：","hello-java-binding");

    }

结果

2.4 发送消息1 (字符串)

    @Test
    public void sendMessageTestDemo1(){
        String msg = "hello java";
        rabbitTemplate.convertAndSend("hello-java-exchange","hello.java",msg);
        log.info("消息发送完成{}",msg);
    }

查看接收的消息

2.2 发送消息2 （对象）

    @Test
    public void sendMessageTest() {
        OrderReturnReasonEntity reasonEntity = new OrderReturnReasonEntity();
        reasonEntity.setId(1L);
        reasonEntity.setCreateTime(new Date());
        reasonEntity.setName("reason");
        reasonEntity.setStatus(1);
        reasonEntity.setSort(2);
        String msg = "Hello World";
        //1、发送消息,如果发送的消息是个对象，会使用序列化机制，将对象写出去，对象必须实现Serializable接口

        //2、发送的对象类型的消息，可以是一个json
        rabbitTemplate.convertAndSend("hello-java-exchange","hello.java",
                reasonEntity,new CorrelationData(UUID.randomUUID().toString()));
        log.info("消息发送完成:{}",reasonEntity);
    }

由于是序列化，需要添加配置，经过转换后才可以看到对象数据

@Configuration
public class MyRabbitConfig {

    @Bean
    public MessageConverter messageConverter() {
        return new Jackson2JsonMessageConverter();
    }

}

2.3 接收数据

    /**
     * queues：声明需要监听的队列
     * channel：当前传输数据的通道
     */
    @RabbitListener(queues = {"hello-java-queue"})
    public void revieveMessage(Message message,
                               OrderReturnReasonEntity content) {
        //拿到主体内容
        byte[] body = message.getBody();
        //拿到的消息头属性信息
        MessageProperties messageProperties = message.getMessageProperties();
        System.out.println("接受到的消息...内容" + message + "===内容：" + content);

    }