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
其他平台安装 RabbitMQ
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
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