Windows RabbitMQ C#测试消息发送&接受

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五、编写测试脚本

1. 创建两个C#控制台项目(本文使用vs2019)，分别作为消息发布者和消息订阅者。.Net Framework框架版本选择为4.6.1
2. 两个工程创建后，都需要添加RabbitMQ包。（安装过程有弹窗，确定即可）
3. 消息发布者代码(publisher.cs)：每隔150ms，向队列TestQueue1发送一条消息

using System;
using System.Text;
using System.Threading;
using RabbitMQ.Client;

namespace publisher
{
    class Program
    {
        static void Main(string[] args)
        {
        	//基本登录信息
            var factory = new ConnectionFactory()
            {
                HostName = "192.168.123.29",
                VirtualHost = "visual_knitting_machine",
                UserName = "admin",
                Password = "123456",
                Port = 5672
            };
			
			//创建连接
            using (var connection = factory.CreateConnection())
            {
            	//分配channel
                using (var channel = connection.CreateModel())
                {
                    for (int i = 1; i < 1000; i++)
                    {
                    	//描述队列
                        channel.QueueDeclare(
                            queue: "TestQueue1",
                            durable: true,
                            exclusive: false,
                            autoDelete: false,
                            arguments: null
                            );
						
						//要发送的消息
                        string message = "Hello World! -- " + i.ToString();
                        var body = Encoding.UTF8.GetBytes(message);
						
						//发布消息
                        channel.BasicPublish(
                            exchange: "myTestExchange",
                            routingKey: "queue1_routingKey",
                            basicProperties: null,
                            body: body
                            );

                        Console.WriteLine(" {0} Sent \'{1}\'", i.ToString(), message);
                        Thread.Sleep(150);
                    }
                }
            }
        }
    }
}

4. 消息订阅者代码(consumer.cs)：每隔200ms，从队列消费一条消息。消费者可以有多个。

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

namespace consumer
{
    class Program
    {
        static EventingBasicConsumer consumer;
        static IConnection connection;
        static IModel channel;

        static void Main(string[] args)
        {
            // 禁用控制台快速编辑模式，防止窗口假死。
            // 假死后会阻塞程序，导致无法接受消息
            // 可通过按回车解除假死状态
            ConsoleUtil.DisbleQuickEditMode();

            try
            {
                var factory = new ConnectionFactory()
                {
                    HostName = "192.168.123.29",
                    VirtualHost = "visual_knitting_machine",
                    UserName = "admin",
                    Password = "123456",
                    Port = 5672
                };
                connection = factory.CreateConnection();

                channel = connection.CreateModel();

                //队列声明
                channel.QueueDeclare("TestQueue1", true, false, false, null);

                //公平分发，一次只为某个消费者发送一条消息，
                //否则会出现其他消费者拿不到消息的情况
                //也可设置一次接受多条消息，将1设置n即可。
                channel.BasicQos(0, 1, false);

                //构建消费者实例
                consumer = new EventingBasicConsumer(channel);

                //消息接收后的事件委托，异步，非阻塞。
                consumer.Received += OnReceiveMessage;

                //启动消费者
                //关闭自动确认，避免一次性将消息全部消费
                channel.BasicConsume("TestQueue1", false, consumer);
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }

            //此循环无特殊意义，用来防止控制台自动关闭。
            while (true) { }
        }

        static void OnReceiveMessage(object sender, BasicDeliverEventArgs e)
        {
            //手动确认消息被消费，只有确认消费后，RabbitMQ才会重新为该消费者发送新消息
            channel.BasicAck(e.DeliveryTag, false);

            var body = e.Body.ToArray();
            var message = Encoding.UTF8.GetString(body);

            if (!string.IsNullOrEmpty(message))
            {
                Console.WriteLine(" Received '{0}'", message);
            }
            Thread.Sleep(200);
        }
    }
}