1.加入依赖

RabbitMQ.Client

2.编写生产者

using RabbitMQ.Client;

namespace rabbitmq.config
{
    public class MqHelper
    {
        private static ConnectionFactory? _factory;

        public static ConnectionFactory GetFactory() {

            if (_factory == null) {
                ConnectionFactory factory = new ConnectionFactory();
                factory.Uri = new Uri("amqp://guest:[email protected]:5672/");
                _factory = factory;
            }
        
            return _factory;
        }

    }
}

namespace rabbitmq.config
{
    public class QueueConfig
    {
        public static string QueueName = "mq_test_queue";
        public static string ExchangeName = "mq_test_queue_exchange";
        public static string RoutingKey = "mq_test_queue";
    }
}

using RabbitMQ.Client;

namespace rabbitmq.config
{
    public class SendMsg
    {
        public static void send() {

            IConnection conn = MqHelper.GetFactory().CreateConnection();
            IModel channel = conn.CreateModel();
            channel.ExchangeDeclare(QueueConfig.ExchangeName, ExchangeType.Direct);
            channel.QueueDeclare(QueueConfig.QueueName, false, false, false, null);
            channel.QueueBind(QueueConfig.QueueName, QueueConfig.ExchangeName, QueueConfig.RoutingKey, null);
            
            for (int i = 0; i < 10; i++) {
                byte[] messageBodyBytes = System.Text.Encoding.UTF8.GetBytes("Hello, world!-"+i);
                channel.BasicPublish(QueueConfig.ExchangeName, QueueConfig.RoutingKey, null, messageBodyBytes);

                Thread.Sleep(1000);
            }
           
        }
    }
}

using Microsoft.AspNetCore.Mvc;
using rabbitmq.config;

namespace rabbitmq.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class MyController : ControllerBase
    {
        [HttpGet(Name = "my")]
        public object Get()
        {
            //MqListener.OpenThread();
            SendMsg.send();

            return "success";
        }
    }
}

3.编写消费端

using RabbitMQ.Client;

namespace rabbitmq.config
{
    public class MqHelper
    {
        private static ConnectionFactory? _factory;

        public static ConnectionFactory GetFactory() {

            if (_factory == null) {
                ConnectionFactory factory = new ConnectionFactory();
                factory.Uri = new Uri("amqp://guest:[email protected]:5672/");
                _factory = factory;
            }
        
            return _factory;
        }

    }
}

namespace rabbitmq.config
{
    public class QueueConfig
    {
        public static string QueueName = "mq_test_queue";
        public static string ExchangeName = "mq_test_queue_exchange";
        public static string RoutingKey = "mq_test_queue";
    }
}

using RabbitMQ.Client;
using RabbitMQ.Client.Events;

namespace rabbitmq.config
{
    public class MqListener : BackgroundService
    {
        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            IConnection conn = MqHelper.GetFactory().CreateConnection();
            IModel channel = conn.CreateModel();
            channel.ExchangeDeclare(QueueConfig.ExchangeName, ExchangeType.Direct);
            channel.QueueDeclare(QueueConfig.QueueName, false, false, false, null);
            channel.QueueBind(QueueConfig.QueueName, QueueConfig.ExchangeName, QueueConfig.RoutingKey, null);
            var consumer = new EventingBasicConsumer(channel);
            consumer.Received += (ch, ea) =>
            {
                var body = ea.Body.ToArray();
                string str = System.Text.Encoding.UTF8.GetString(body);
                Console.WriteLine("接受到的mq消息：" + str);
                channel.BasicAck(ea.DeliveryTag, false);

                //Thread.Sleep(1000);
            };
            string consumerTag = channel.BasicConsume(QueueConfig.QueueName, false, consumer);
        }
    }
}

using rabbitmq.config;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddHostedService<MqListener>();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

4.启动2个项目