RabbitMQ Spring（三）RabbitTemplate

最新推荐文章于 2025-05-13 17:38:00 发布

原创最新推荐文章于 2025-05-13 17:38:00 发布 · 1.9k 阅读

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本文详细介绍了如何在Spring框架下配置RabbitMQ，包括创建连接工厂、交换机、队列及绑定，并展示了如何使用RabbitTemplate进行消息的发送与自定义消息属性。

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RabbitMQ 配置

package com.bfxy.spring;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitAdmin;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;


@Configuration
@ComponentScan({"com.bfxy.spring.*"})
public class RabbitMQConfig {

    public final static String HOST = "127.0.0.1";

    @Bean
    public ConnectionFactory connectionFactory(){
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setAddresses(HOST);
        connectionFactory.setUsername("guest");
        connectionFactory.setPassword("guest");
        connectionFactory.setVirtualHost("/");
        return connectionFactory;
    }

    @Bean
    public TopicExchange exchange001() {
        return new TopicExchange("topic001", true, false);
    }

    @Bean
    public Queue queue001() {
        return new Queue("queue001", true); //队列持久
    }

    @Bean
    public Binding binding001() {
        return BindingBuilder.bind(queue001()).to(exchange001()).with("spring.*");
    }

    @Bean
    public TopicExchange exchange002() {
        return new TopicExchange("topic002", true, false);
    }

    @Bean
    public Queue queue002() {
        return new Queue("queue002", true); //队列持久
    }

    @Bean
    public Binding binding002() {
        return BindingBuilder.bind(queue002()).to(exchange002()).with("rabbit.*");
    }

    @Bean
    public Queue queue003() {
        return new Queue("queue003", true); //队列持久
    }

    @Bean
    public Binding binding003() {
        return BindingBuilder.bind(queue003()).to(exchange001()).with("mq.*");
    }

    @Bean
    public Queue queue_image() {
        return new Queue("image_queue", true); //队列持久
    }

    @Bean
    public Queue queue_pdf() {
        return new Queue("pdf_queue", true); //队列持久
    }

    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        return rabbitTemplate;
    }
    
}

RabbitTemplate 使用

package com.bfxy.spring;


import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.amqp.AmqpException;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;


@RunWith(SpringRunner.class)
@SpringBootTest
public class ApplicationTests {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Test
    public void testSendMessage() throws Exception {

        MessageProperties messageProperties = new MessageProperties();
        messageProperties.getHeaders().put("desc", "信息描述..");
        messageProperties.getHeaders().put("type", "自定义消息类型..");
        Message message = new Message("Hello RabbitMQ".getBytes(), messageProperties);

        rabbitTemplate.convertAndSend("topic001", "spring.amqp", message, new MessagePostProcessor() {
            @Override
            public Message postProcessMessage(Message message) throws AmqpException {
                System.err.println("------添加额外的设置---------");
                message.getMessageProperties().getHeaders().put("desc", "额外修改的信息描述");
                message.getMessageProperties().getHeaders().put("attr", "额外新加的属性");
                return message;
            }
        });

    }

    @Test
    public void testSendMessage2() throws Exception {

        MessageProperties messageProperties = new MessageProperties();
        messageProperties.setContentType("text/plain");
        Message message = new Message("mq 消息1234".getBytes(), messageProperties);

        rabbitTemplate.send("topic001", "spring.abc", message);

        rabbitTemplate.convertAndSend("topic001", "spring.amqp", "hello object message send!");
        rabbitTemplate.convertAndSend("topic002", "rabbit.abc", "hello object message send!");

    }
    
}