c# - EasyNetQ Windows 服务消息传递架构无法正常工作

Question

因此，我正在尝试（基于此 EasyNetQ 教程：快速入门 - EasyNetQ）使用涉及发布者和订阅者的简单 EasyNetQ 消息传递架构，它似乎并没有像预期的那样工作。我的发布者和订阅者都是 Visual Studio 2015 中的 Windows 服务项目，它们之间发送的消息是自定义类型 (TextMessage) 的一个实例，它是一个简单的类库，如下所示：

namespace Messaging.Messages
{
    public class TextMessage
    {
        public string Text { get; set; }
    }
}

我的发布者看起来像这样：

namespace Messaging.Publisher
{
    public partial class ReportService : ServiceBase
    {
        private Timer timer = null;

        public ReportService()
        {
            this.InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            Library.WriteErrorLog("Report Publisher Service started");

            using (var bus = RabbitHutch.CreateBus("host=localhost"))
            {
                bus.Publish(new TextMessage
                {
                    Text = "Hello"
                });
            }
        }

        protected override void OnStop()
        {
            this.timer.Enabled = false;
            Library.WriteErrorLog("Test window service has stopped");
        }

    }
}

所以没什么好看的。它所做的只是发布一条 TextMessage 类型的消息并将日志记录到文本文件“PublisherLogFile.txt”中：

namespace Messaging.Publisher
{
    public static class Library
    {
        public static void WriteErrorLog(string Message)
        {
            StreamWriter sw = null;

            try
            {
                 sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + "\\PublisherLogFile.txt", true);                      
               sw.WriteLine(DateTime.Now.ToString(CultureInfo.InvariantCulture) + ": " + Message);
                 sw.Flush();
                 sw.Close();
            }
            catch (Exception)
            {

                throw;
            }
        }
    }
}

订阅者看起来像这样：

namespace Messaging.Subscriber
{
    public partial class ReportSubscriberService : ServiceBase
    {
        public ReportSubscriberService()
        {
            this.InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            WriteErrorLog("Report Subscriber Service started");

            using (var bus = RabbitHutch.CreateBus("host=localhost"))
            {
                bus.Subscribe<TextMessage>("testId", HandleTextMessage);
            }
        }

        protected override void OnStop()
        {
            WriteErrorLog("Exiting Report Subscriber Service");
        }

        private static void HandleTextMessage(TextMessage textMessage)
        {
            WriteErrorLog("Got message: " + textMessage.Text);
        }

        private static void WriteErrorLog(string Message)
        {
            try
            {
                var sw = new     StreamWriter(AppDomain.CurrentDomain.BaseDirectory + "\\SubscriberLogFile.txt", true);
                sw.WriteLine(DateTime.Now.ToString(CultureInfo.InvariantCulture) + ": " + Message);
                sw.Flush();
                sw.Close();
            }
            catch (Exception)
            {

                throw;
            }
        }
    }
}

也很简单。它所做的只是接收 TextMessage 类型的消息，并将其 Text 属性的值打印到日志文件“SubscriberLogFile.txt”中。问题是它似乎没有收到消息，因为它没有登录到上面的文本文件。看起来我的订阅者中的HandleTextMessage处理程序从未被调用过。这是“SubscriberLogFile.txt”的内容：