RabbitMQ代码操作之发消息和序列化机制

几个自动配置类：

1.RabbitAutoConfiguration
2.有自动配置了连接工厂 ConnectionFactory
3.RabbitProperties 封装了RabbitMQ的配置
4.RabiitTemlate：给RabbitMQ发送和接收消息
5.AmqpAdmin：RabbitMQ系统管理功能组件（可以创建exchange,queue,Binding）
6.@EnableRabbit+@RabbitListener 监听消息队列的内容

• 配置文件写法：

spring.rabbitmq.host=192.168.0.113
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest
#端口5672默认可以不写
#spring.rabbitmq.virtual-host=  默认/可以不写

• 测试类：

@SpringBootTest
public class Springboot002AmqpApplicationTests {


    @Autowired
    RabbitTemplate  rabbitTemplate;

    /*
    1.单播（点对点）
      public Message(byte[] body, MessageProperties messageProperties) {
        this.body = body;
        this.messageProperties = messageProperties;
    }
    * */
    @Test
    public void contextLoads() {
        //交换器，路邮件，消息
        //Message需要自己构造一个，定一消息体内容和消息头
        //rabbitTemplate.send(exchange,routekey,message);

        //转法并发送,Object默认当成消息体，只需要传入要发送的对象，自动序列化保存发送给rabbitmq
        //rabbitTemplate.convertAndSend(exchange，routKey，object);
        Map <String ,Object>map = new HashMap<>();
        map.put("msg","这是第一个消息");
        map.put("data", Arrays.asList("helloWorld","123",true));
        //对象被默认序列化后发送出去
        //rabbitTemplate.convertAndSend("exchange.direct","springbootTest.news",map);
        //json发送MyAMQPConfig类配置
        rabbitTemplate.convertAndSend("exchange.direct","springbootTest.news",new Book("西游记","吴承恩"));
    }

    //接收
    @Test
    public  void  receive(){
        Object o = rabbitTemplate.receiveAndConvert("springbootTest.news");
        //打印数据类型
        System.out.println(o.getClass());
        System.out.println(o);
    }
/*
* 1.单播
* */
    @Test
    public void setOneMsg(){
        rabbitTemplate.convertAndSend("exchange.direct","springbootTest",new Book("水浒传","单播"));



    /*
    * 2.广播
    * */
    @Test
    public void setAllMsg(){
        rabbitTemplate.convertAndSend("exchange.fanout","",new Book("红楼梦","曹雪芹"));

    }

发送消息时如不配置序列化方法则按照java默认序列化机制，则会造成发送编码不符合
解决方法：

json发送MyAMQPConfig类配置

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