docker run - d \

-- name my - rabbitmq \

- p 5672 : 5672 - p 15672 : 15672 \

- v / home / rabbitmq : / var / lib / rabbitmq \

-- hostname my - rabbitmq - host \

- e RABBITMQ_DEFAULT_VHOST = my_vhost \

- e RABBITMQ_DEFAULT_USER = admin \

- e RABBITMQ_DEFAULT_PASS = admin \

-- restart = always \

rabbitmq : management

--hostname ：主机名 (RabbitMQ 的一个重要注意事项是它根据所谓的 “ 节点名称 ” 存储数据 , 默认为主机名 )

-e ：指定环境变量 :

RABBITMQ_DEFAULT_VHOST ：默认虚拟机名

RABBITMQ_DEFAULT_USER ：默认的用户名

RABBITMQ_DEFAULT_PASS ：默认用户名的密码

容器启动后,可以通过 docker logs 容器查看日志

docker logs my - rabbitmq

进入管理后台

http://ip:15672

三.springboot连接配置

1.配置账号

切记需要授权

2.springboot项目搭建

3.所需依赖

< dependency >

< groupId > org . springframework . boot </ groupId >

< artifactId > spring - boot - starter - amqp </ artifactId >

</ dependency >

4.yml文件配置

server:
    port: 8080
spring:
    application:
        name: xx
    rabbitmq:
         #虚拟机id
        host: 192.168.208.137
        password: admin
        port: 5672
        username: springboot
        virtual-host: my_vhost

5.生产者 Provider

①.RabbitConfig

package com.example.demo;

import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@SuppressWarnings("all")
public class RabbitConfig {
    @Bean
    public Queue firstQueue() {
        return new Queue("firstQueue");
    }
}

②.Sender

package com.example.demo;

import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
@SuppressWarnings("all")
public class Sender {

    @Autowired
    private AmqpTemplate rabbitTemplate;

    public void sendFirst() {
        rabbitTemplate.convertAndSend("firstQueue", "Hello World");
    }
}

如有报：java.lang.IllegalStateException: Found multiple @SpringBootConfiguration annotated classes

注释掉pojo项目启动类上的@SpringBootApplication注解即可。

6.消费者 Consumer

①.Receiver

package com.example.demo;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
@SuppressWarnings("all")
@Slf4j
@RabbitListener(queues = "firstQueue")
public class Receiver {
    @RabbitHandler
    public void process(String msg) {
        log.warn("接收到:" + msg);
    }
}

7.自定义数据发送

package com.example.demo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

@SuppressWarnings("all")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User implements Serializable {
    private String username;
    private String userpwd;

}

package com.example.demo;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.SneakyThrows;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class ProviderApplicationTests {
    @Autowired
    private Sender sender;

    @Test
    @SneakyThrows
    void contextLoads() {
        //sender.sendFirst(new User("影子","123"));
        User user=new User("yingz","123");
        ObjectMapper mapper=new ObjectMapper();
        sender.sendFirst(mapper.writeValueAsString(user));

    }

}


    public void sendFirst(String json) {
        rabbitTemplate.convertAndSend("firstQueue", json);
    }

package com.example.demo;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
@SuppressWarnings("all")
@Slf4j
@RabbitListener(queues = "firstQueue")
public class Receiver {
   
    @RabbitHandler
    @SneakyThrows
    public void process(String json) {
        log.warn("接收到了:" + json);
        ObjectMapper mapper=new ObjectMapper();
        log.warn("接收到:" + mapper.readValue(json,User.class));
    }
}

RabbitMQ.基本使用

一.消息队列

1.Message queue 释义

2.问题思考

3.存在问题

4.优化方案

5.例：

①.带来的好处

②. 消息队列特点

6.Email邮件案例:

7.AMQP

8.技术选型

9.RabbitMq

二.Docker安装部署RabbitMQ

三.springboot连接配置

1.配置账号

2.springboot项目搭建

3.所需依赖

4.yml文件配置

5.生产者 Provider

①.RabbitConfig

6.消费者 Consumer

①.Receiver

7.自定义数据发送

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