介绍

RabbitMQ是一个开源的,基于AMQP(Advanced Message Queuing Protocol)协议的完整,可复用的企业级消息队列(Message Queue 一种应用程序与应用程序之间的一种通信方法)系统,RabbitMQ可以实现点对点,发布订阅等消息处理模式

• 官网：https://www.rabbitmq.com/dotnet.html

• 开源地址：https://github.com/rabbitmq/rabbitmq-dotnet-client

安装

• docker下安装 RabbitMQ

docker pull rabbitmq:3-management
docker run -it --rm --name rabbitmq -p 5672:5672 -p 15672:15672 -d rabbitmq:3-management

• 其他平台安装 RabbitMQ：https://www.rabbitmq.com/download.html

为了开发方便，我在docker中安装了RabbitMQ，RabbitMQ安装完成后，默认端口打开地址为：http://localhost:15672，输入默认账号密码，guest/guest，可以看到RabbitMQ UI界面。

快速开始

接下来我们用RabbitMQ来完成一个比较常见的生产者和消费者模式的代码，新建两个控制台项目，RabbitMQConsumer和RabbitMQProducer。

分别在两个项目中安装组件

Install-Package RabbitMQ.Client

在RabbitMQProducer生产者项目中，添加以下代码。

using RabbitMQ.Client;
using System;
using System.Text;namespace RabbitMQProducer
{class Program{static void Main(string[] args){var factory = new ConnectionFactory(){HostName = "localhost",Port = 5672,UserName = "guest",Password = "guest"};using var connection = factory.CreateConnection();using var channel = connection.CreateModel();var exchange = "msg_test";channel.ExchangeDeclare(exchange, type: ExchangeType.Fanout);for (int i = 0; i < 10000; i++){var message = $"hello，我是生产者【{i + 1}】号";var body = Encoding.UTF8.GetBytes(message);channel.BasicPublish(exchange, routingKey: "", basicProperties: null, body: body);Console.WriteLine($"- 发送消息：{message}");}}}
}

模拟发出10000次消息，接下来在RabbitMQConsumer消费者项目中接收消息，代码如下：

using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System;
using System.Text;namespace RabbitMQConsumer
{class Program{static void Main(string[] args){var factory = new ConnectionFactory(){HostName = "localhost",Port = 5672,UserName = "guest",Password = "guest"};using var connection = factory.CreateConnection();using var channel = connection.CreateModel();var exchange = "msg_test";channel.ExchangeDeclare(exchange, type: ExchangeType.Fanout);var queueName = channel.QueueDeclare().QueueName;channel.QueueBind(queue: queueName, exchange, routingKey: "");Console.WriteLine("开始监听消息...");while (true){var consumer = new EventingBasicConsumer(channel);consumer.Received += (model, ea) =>{byte[] body = ea.Body.ToArray();var message = Encoding.UTF8.GetString(body);Console.WriteLine($"- 接收到消息：{message}");};channel.BasicConsume(queue: queueName, autoAck: true, consumer: consumer);}}}
}

同时启动两个看看效果。

一闪而过，速度还是挺快的，更多操作可以查看官方教程：https://www.rabbitmq.com/getstarted.html