Failed to send message using MQ - asp.net-core

Question

On my server side I deployed RabbitMq message middleware using docker and it works perfectly. But I combine it with asp.net core, it can't send the message successfully.
package:https://www.nuget.org/packages/RabbitMQ.Client/
I goole some answers:
RabbitMQ adopts the message response mechanism, that is, after the
consumer receives a message, it needs to send a response, and then
RabbitMQ will delete the message from the queue. If the consumer has
an exception during the consumption process, the connection is
disconnected and no response is sent. Then RabbitMQ will redeliver the
message
So I modified my code
//message received event
consumer.Received += (ch, ea) =>
{
var message = Encoding.UTF8.GetString(ea.Body);
Console.WriteLine($"Received the news： {message}");
Console.WriteLine($"received the message[{ea.DeliveryTag}] delay 10s to send receipt");
Thread.Sleep(10000);
//Confirm that the message has been consumed
channel.BasicAck(ea.DeliveryTag, false);
Console.WriteLine($"Receipt sent[{ea.DeliveryTag}]");
};
Still failed to send and no response, please help me, thank you!

Answer 1

I have a demo of sending a message, you may refer to it, it may be helpful.
Controller:
[Route("test")]
public void Index()
{
try
{
var factory = new ConnectionFactory();
factory.VirtualHost = "/";
factory.HostName = "localhost";
factory.Port = 5672;
factory.UserName = "guest";//Default username guest
factory.Password = "guest";//Default password guest
using (var connection = factory.CreateConnection())
using (var channel = connection.CreateModel())
{
channel.QueueDeclare(queue: "test",
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
string message = "Hello World!";
var body = Encoding.UTF8.GetBytes(message);
channel.BasicPublish(exchange: "",
routingKey: "test",
basicProperties: null,
body: body);
Console.WriteLine(" [x] Sent {0}", message);
}
Console.WriteLine(" Press [enter] to exit.");
Console.ReadLine();
}
catch (Exception ex)
{
Console.Write(string.Format("RabbitMQ connection error :{0}\n", ex.ToString()));
}
}
For the sake of convenience, I did not configure the connection information of rabbitmq here. I wrote it directly into the method, you can do it yourself.
Resullt: