MassTransit 不消耗非 MassTransit 消息

Question

我必须使用 Python 发布消息并使用 MassTransit（.Net core 应用程序）使用它。

为了进行测试，我创建了一个控制台应用程序来使用 Azure.ServiceBuss 库生成消息。 消费者是 ServiceBus 的 MassTransit 实现。

当我将消息发送到队列（使用我的控制台应用程序）时，MassTransit 无法使用它。 我知道互操作性以及我们必须发送以便 MassTransit 使用消息的所有标头，但我无法使消费者工作。

制作人：

namespace MassTransit.MultipleBus.ServiceBus.Models.Commands
{
    class Program
    {
        const string ServiceBusConnectionString = "connstring";
        const string QueueName = "topic";
        static IQueueClient queueClient;

        public static async Task Main(string[] args)
        {
            queueClient = new QueueClient(ServiceBusConnectionString, QueueName);

            // Send messages.
            await SendMessagesAsync();

            Console.WriteLine("ENVIOU");
            Console.ReadKey();

            await queueClient.CloseAsync();
        }

        private static async Task SendMessagesAsync()
        {
            try
            {
                while (true)
                {
                    string messageBody = JsonConvert.SerializeObject(new EnviarExemploPocAzureServiceBusCommand(
                        NewId.NextGuid(),
                        NewId.NextGuid(),
                        new Proposta()
                        )
                    {
                        Headers = new Dictionary<string, object>() { },
                        Host = new HostInfo()
                    });

                    var message = new Message(Encoding.UTF8.GetBytes(messageBody));

                    Console.WriteLine($"Enviando mensagem: {messageBody}");

                    await queueClient.SendAsync(message);

                    Console.WriteLine("Enviado. Enviar outro?");
                    Console.ReadKey();
                }
            }
            catch (Exception exception)
            {
                Console.WriteLine($"{DateTime.Now} :: Exception: {exception.Message}");
            }
        }
    }
}

我要发送的课程：

namespace MassTransit.MultipleBus.ServiceBus.Models.Commands
{
    public class EnviarExemploPocAzureServiceBusCommand
    {
        public EnviarExemploPocAzureServiceBusCommand(Guid msgId, Guid convId, Proposta msg)
        {
            MessageId = msgId.ToString();
            ConversationId = convId.ToString();
            MessageType = new[]
            {
                "urn:message:MassTransit.MultipleBus.ServiceBus.Models.Commands:Proposta"
            };
            Message = msg;
            SourceAddress = "";
            DestinationAddress = "sb://organization.servicebus.windows.net/topic";
        }

        public string DestinationAddress { get; set; }

        public string MessageId { get; set; }

        public string ConversationId { get; set; }

        public string SourceAddress { get; set; }

        public HostInfo Host { get; set; }

        public IDictionary<string, object> Headers { get; set; }

        public Proposta Message { get; set; }

        public string[] MessageType { get; set; }
    }

    public class Proposta
    {
        public Proposta()
        {
            Nome = "TESTE 2";
            AcaoId = 2;
            Mensagem = "TESTE 2";
        }

        public string Nome { get; set; }
        public int AcaoId { get; set; }
        public string Mensagem { get; set; }
    }

    public class HostInfo
    {
        public HostInfo()
        {
            MachineName = "NOTEXXXXX";
            ProcessName = "iisexpress";
            ProcessId = 34188;
            Assembly = "MassTransit.MultipleBus";
            AssemblyVersion = "1.0.0.0";
            FrameworkVersion = "3.1.5";
            MassTransitVersion = "7.0.2.0";
            OperatingSystemVersion = "Microsoft Windows NT 10.0.19041.0";
        }

        public string MachineName { get; set; }

        public string ProcessName { get; set; }

        public int ProcessId { get; set; }

        public string Assembly { get; set; }

        public string AssemblyVersion { get; set; }

        public string FrameworkVersion { get; set; }

        public string MassTransitVersion { get; set; }

        public string OperatingSystemVersion { get; set; }

    }
}

ServiceBus 中排队的消息：

{
    "DestinationAddress": "sb://organization.servicebus.windows.net/topic",
    "MessageId": "00010000-0faa-0009-6939-08d854e183aa",
    "ConversationId": "00010000-0faa-0009-69f0-08d854e183aa",
    "SourceAddress": "",
    "Host": {
        "MachineName": "NOTEXXXXX",
        "ProcessName": "iisexpress",
        "ProcessId": 32608,
        "Assembly": "MassTransit.MultipleBus",
        "AssemblyVersion": "1.0.0.0",
        "FrameworkVersion": "3.1.5",
        "MassTransitVersion": "7.0.2.0",
        "OperatingSystemVersion": "Microsoft Windows NT 10.0.19041.0"
    },
    "Headers": {
    },
    "Message": {
        "nome": "TESTE 2",
        "acaoId": 2,
        "mensagem": "TESTE 2"
    },
    "MessageType": [
        "urn:message:MassTransit.MultipleBus.ServiceBus.Models.Commands:Proposta"
    ]
}

消费者初创公司：

services.AddMassTransit<IAzureServiceBusService>(x =>
            {
                x.AddConsumer<EnviarExemploPocAzureServiceBusCommandHandler>();

                x.UsingAzureServiceBus((context, cfg) =>
                {
                    cfg.UseConcurrencyLimit(serviceBusSettings.AzureServiceBusSettings.ExemploAplicacaoPocA.ConcurrencyLimit);

                    cfg.Host("connString", h =>
                    {
                        h.OperationTimeout = TimeSpan.FromSeconds(serviceBusSettings.AzureServiceBusSettings.ExemploAplicacaoPocA.OperationTimeout);
                        h.TransportType = Microsoft.Azure.ServiceBus.TransportType.AmqpWebSockets;
                    });

                    cfg.UseServiceBusMessageScheduler();
                });
            });

            services.AddMassTransitHostedService();
            services.AddSettings(configuration);

处理者：

namespace MassTransit.MultipleBus.ServiceBus.Handlers.CommandHandlers
{
    public class EnviarExemploPocAzureServiceBusCommandHandler : IConsumer<Proposta>
    {
        public async Task Consume(ConsumeContext<Proposta> context)
        {
            await Task.CompletedTask;
        }
    }

    public class EnviarExemploPocAzureServiceBusFaultCommandHandler : IConsumer<Fault<EnviarExemploPocAzureServiceBusCommand>>
    {
        public async Task Consume(ConsumeContext<Fault<EnviarExemploPocAzureServiceBusCommand>> context)
        {
            await Task.CompletedTask;
        }
    }
}

当我也使用 MassTransit 发送消息时，消费者工作并且消息像这样排队：

{
  "messageId": "00010000-0faa-0009-6497-08d854edbfe1",
  "conversationId": "00010000-0faa-0009-3b83-08d854edbfe5",
  "sourceAddress": "sb://organization.servicebus.windows.net/XXXX",
  "destinationAddress": "sb://organization.servicebus.windows.net/topic",
  "messageType": [
    "urn:message:MassTransit.MultipleBus.ServiceBus.Models.Commands:Proposta"
  ],
  "message": {
    "nome": "TESTE DOIS",
    "acaoId": 2,
    "mensagem": "TESTE DOIS"
  },
  "sentTime": "2020-09-09T18:25:37.6127127Z",
  "headers": {
    "MT-Activity-Id": "|1e87ff49-4beb56732bfd4887.3."
  },
  "host": {
    "machineName": "NOTEXXXXXX",
    "processName": "iisexpress",
    "processId": 37092,
    "assembly": "MassTransit.MultipleBus",
    "assemblyVersion": "1.0.0.0",
    "frameworkVersion": "3.1.5",
    "massTransitVersion": "7.0.2.0",
    "operatingSystemVersion": "Microsoft Windows NT 10.0.19041.0"
  }
}

我做错了什么？ 命名空间似乎是正确的，我做了所有我发现的关于它的事情，但我无法让它工作。 有人可以帮助我吗？

Answer 1

您可以将 MassTransit 序列化程序配置为接收任何类型的消息，省略服务 MassTransit 字段。只需将此设置添加到您的配置中即可： config.UseRawJsonSerializer(MassTransit.Serialization.RawSerializerOptions.AnyMessageType, true);