RabbitMq 入门

安装

1. 由于rabbitMq需要erlang语言的支持，在安装rabbitMq之前需要安装erlang，执行命令

apt-get install erlang-nox     # 安装erlang
erl    # 查看relang语言版本，成功执行则说明relang安装成功

2. 添加公钥

wget -O- https://www.rabbitmq.com/rabbitmq-release-signing-key.asc | sudo apt-key add -

3. 更新软件包

apt-get update

4. 安装 RabbitMQ

apt-get install rabbitmq-server  #安装成功自动启动

5. 查看 RabbitMq状态

systemctl status rabbitmq-server   #Active: active (running) 说明处于运行状态
# service rabbitmq-server status 用service指令也可以查看，同systemctl指令

6. 启动、停止、重启

service rabbitmq-server start    # 启动
service rabbitmq-server stop     # 停止
service rabbitmq-server restart  # 重启 

7. 启用 web端可视化操作界面，我们还需要配置Management Plugin插件

rabbitmq-plugins enable rabbitmq_management   # 启用插件
service rabbitmq-server restart    # 重启

8. 查看用户

rabbitmqctl list_users

9. 添加管理用户

rabbitmqctl add_user admin yourpassword   # 增加普通用户
abbitmqctl set_user_tags admin administrator    # 给普通用户分配管理员角色 

10. 设置账号权限

入门使用

1. 引入依赖

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

2. 配置yml

server:
  port: 9527
spring:
  application:
    name: rabbitmq-demo
  rabbitmq:
    host: localhost
    port: 5672
    username: guest
    password: guest

3. 创建生产者

package com.example.rabbitmqdemo.producer;

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

import java.util.Date;

/**
 * 生产者
 * @Author: czw
 * @Date: 2019/3/13 19:43
 */
@Component
public class Producer {
    @Autowired
    private AmqpTemplate amqpTemplate;
    /** 路由关键字*/
    private static final String RONTING_KEY = "czw";

    /**
     * 生产消息
     */
    public void send(){
        String msg = "开始生产消息："+ new Date();
        System.out.println(msg);
        amqpTemplate.convertAndSend(RONTING_KEY,msg);
    }
}

4. 创建消费者

package com.example.rabbitmqdemo.consumer;

import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

/**
 * 消费者
 * @Author: czw
 * @Date: 2019/3/13 19:52
 */
@Component
@RabbitListener(queues = "czw")//监听czw队列
public class Consumer {

    @RabbitHandler
    public void consume(String msg){
        System.out.println("开始消费："+msg);
    }

}

5. 创建配置类

package com.example.rabbitmqdemo.config;

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


/**
 * 配置队列
 * @Author: czw
 * @Date: 2019/3/13 19:54
 */
@Configuration
public class RabbitConfig {
    /** 路由关键字*/
    private static final String RONTING_KEY = "czw";

    @Bean
    public Queue czwQueue(){
        return new Queue(RONTING_KEY);
    }
}

6. 测试

package com.example.rabbitmqdemo.controller;

import com.example.rabbitmqdemo.producer.Producer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author: czw
 * @Date: 2019/3/13 19:58
 */
@RestController
public class TestController {
    @Autowired
    private Producer producer;

    @RequestMapping("/send")
    public void send(){
        producer.send();
    }
}