1.建立一個springboot專案

2.匯入rabbitmq依賴

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

3.再加入另外一個依賴（這個依賴可省略，主要是用來簡化程式碼）

    <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>4.0.2</version>
        </dependency>    

4.新增實體類

package com.example.rabbitmq.bean;

public class UserName {

    private String username;
    private String password;
    private String age;
    private String host;
    private String datatime;

    public String getDatatime() {
        return datatime;
    }

    public void setDatatime(String datatime) {
        
 
this.datatime = datatime;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        
 
this.password = password;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    @Override
    public String toString() {
        return "UserName{" +
                "username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", age='" + age + '\'' +
                ", host='" + host + '\'' +
                ", datatime='" + datatime + '\'' +
                '}';
    }
}

5.新增rabbitmq配置類

package com.example.rabbitmq.config;

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.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitMQConfig {

    @Value("${spring.rabbitmq.host}")
    private String host;
    @Value("${spring.rabbitmq.port}")
    private int port;
    @Value("${spring.rabbitmq.username}")
    private String username;
    @Value("${spring.rabbitmq.password}")
    private String password;
    @Value("${spring.rabbitmq.virtual-host}")
    private String virtualhost;
    public final static String QUEUE_NAME = "spring-boot-queue";
    public final static String EXCHANGE_NAME = "spring-boot-exchange";
    public final static String ROUTING_KEY = "spring-boot-key";

    // 建立佇列
    @Bean
    public Queue queue() {
        return new Queue(QUEUE_NAME);
    }

    // 建立一個 topic 型別的交換器
    @Bean
    public TopicExchange exchange() {
        return new TopicExchange(EXCHANGE_NAME);
    }

    // 使用路由鍵（routingKey）把佇列（Queue）繫結到交換器（Exchange）
    @Bean
    public Binding binding(Queue queue, TopicExchange exchange) {
        return BindingBuilder.bind(queue).to(exchange).with(ROUTING_KEY);
    }

    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(host, port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost(virtualhost);
        return connectionFactory;
    }

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

}

6.生產者

package com.example.rabbitmq.ctl;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.lang.Console;
import com.example.rabbitmq.bean.UserName;
import com.example.rabbitmq.config.RabbitMQConfig;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;



@RestController
public class ProducerController {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Autowired
    private Consumer consumer;

    @GetMapping("/sendMessage")
    public Object sendMessage() {
        new Thread(() -> {
            for (int i = 0; i < 100; i++) {
                String value = new DateTime().toString("yyyy-MM-dd HH:mm:ss");
                UserName  userName=new UserName();
                userName.setAge("12");
                userName.setHost("10.10.40.20");
                userName.setPassword("admin");
                userName.setUsername("admin");
                userName.setDatatime(value);
                Console.log("send message {}", value);
                rabbitTemplate.convertAndSend(RabbitMQConfig.EXCHANGE_NAME, RabbitMQConfig.ROUTING_KEY, userName.toString());
            }
        }).start();
        return "ok";
    }

}

7.消費者

package com.example.rabbitmq.ctl;

import cn.hutool.core.lang.Console;
import com.example.rabbitmq.bean.UserName;
import com.example.rabbitmq.config.RabbitMQConfig;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
public class Consumer {

    @RabbitListener(queues = RabbitMQConfig.QUEUE_NAME)
    public void consumeMessage(String message) {
        Console.log("consume message {}", message);

    }
}

8.配置檔案

server:
  port: 8084
spring:
  rabbitmq:
    host: 10.10.40.20
    port: 5672
    username: admin
    password: admin
    virtual-host: my_vhost

啟動專案執行 localhost:8084/sendMessage

說明rabbit配置成功