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