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地址： .Net RabbitMQ - 掘金 (juejin.cn)

由于所用包需要商业许可证，换一种方法

环境搭建

MQ 安装

使用的是Podman, 环境搭建参考： Podman 基本使用 - 掘金 (juejin.cn)

依次执行：

1. podman pull rabbitmq
2. podman run -d --hostname my-rabbit --name rabbit -p 15672:15672 -p 5673:5672 rabbitmq
3. podman ps -a
4. podman exec -it 8200f0b845fd /bin/bash
5. rabbitmq-plugins enable rabbitmq_management

点击 RabbitMQ Management，进入RabbitMQ, 账号密码都是guest

.NET 依赖下载

RabbitMQ.Client

核心代码

项目目录

发送者

using RabbitMQ.Client;
using System.Text;

ConnectionFactory factory = new ConnectionFactory();
factory.HostName = "localhost";
factory.Port = 5673;
factory.DispatchConsumersAsync = true;
IConnection connection = factory.CreateConnection();

string exchangeName = "exchange1";
string directName = "direct";
string routingKey = "key1";

while (true)
{
    using var channel = connection.CreateModel(); // 创建信道
    IBasicProperties prop = channel.CreateBasicProperties(); 
    prop.DeliveryMode = 2;
    channel.ExchangeDeclare(exchangeName, directName); // 声明交换机
    byte[] bytes = Encoding.UTF8.GetBytes(DateTime.Now.ToString());
    channel.BasicPublish(
        exchangeName ,
        routingKey: routingKey, 
        mandatory: true,
        body: bytes
        );
    Console.WriteLine("ok" + DateTime.Now.ToString());
    Thread.Sleep(1000);
}

接收者

using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System.Text;

ConnectionFactory factory = new ConnectionFactory();
factory.HostName = "localhost";
factory.Port = 5673;
factory.DispatchConsumersAsync = true;
IConnection connection = factory.CreateConnection();

string exchangeName = "exchange1";
string queueName = "queue1";
string routerKey = "key1";

using IModel channel = connection.CreateModel();
channel.ExchangeDeclare(exchangeName, "direct");
channel.QueueDeclare(
    queueName,
    durable: true,
    exclusive: false,
    autoDelete: false,
    arguments: null
);
channel.QueueBind(queueName, exchangeName, routerKey);

AsyncEventingBasicConsumer consumer = new AsyncEventingBasicConsumer(channel);
consumer.Received += Consumer_Received;
channel.BasicConsume(queueName, autoAck: false, consumer: consumer);

Console.ReadLine();

async Task Consumer_Received(object sender, BasicDeliverEventArgs _event)
{
    try
    {
        byte[] bytes = _event.Body.ToArray();
        string text = Encoding.UTF8.GetString(bytes);
        Console.WriteLine(DateTime.Now + ", 收到消息：" + text);
        channel.BasicAck(_event.DeliveryTag, multiple: false);
        await Task.Delay(1000);
    }
    catch (Exception ex)
    {
        channel.BasicAck(_event.DeliveryTag, multiple: true); // 失败重发
    }
};

测试