Question

从RabbitMQ连接并接收消息后，它们不会从队列中删除。

每次连接时，我都会收到相同的消息，只有一个。

using(bus = RabbitHutch.CreateBus("host=localhost"))
{
    bus.Receive<MyMessage>("my-queue", message => Console.WriteLine("MyMessage: {0}", message.Text));
}

Answer 1

如Connecting to RabbitMQ中所述，创建Bus的单个实例并在整个应用程序中使用它。

我确定了以下过程：

创建应用范围内的总线实例
（可选）将其作为单例添加到依赖项注入中
开始收听消息
注册以在应用程序关闭后处置总线

这是简化的Startup.cs，其中的相关代码段为演示代码：

public class Startup
{

    // This will be your application instance
    IBus bus;

    public void ConfigureServices(IServiceCollection services)
    {  
        // Create, assign the Bus, and add it as Singleton to your application
        bus = RabbitHutch.CreateBus("host=localhost");
        // now you can easyly inject in your components
        services.AddSingleton(bus);
    }

    public void Configure(IHostApplicationLifetime lifetime)
    {
        // Start receiving messages from the queue
        bus.Receive<MyMessage>("my-queue", message => Console.WriteLine("MyMessage: {0}", message.Text));

        // Hook your custom shutdown the the lifecycle
        lifetime.ApplicationStopping.Register(OnShutdown);
    }
    private void OnShutdown()
    {
        // Dispose the Bus
        bus.Dispose();
    }
}

EasyNetQ不确认收到的消息

1 个答案: