Question

我的actor系统在控制台应用程序上初始化。我配置一个演员呼叫BankAccrountActor，负责处理银行账户交易，如账户的信用卡/借记卡/账户余额。在信用/借记命令中，参与者将从账户和Sender.Tell（）中获得信用/借记金额，余额为余额。从我的program.cs我打电话给BankAccountActor请求借记并与结果保持平衡。

问题来自BankAccountActor它调用Sender.Tell（）并保持平衡。这里sender是IActorRef类型，结果是程序类，程序不是actor。怎么可能？

namespace BankAccount
{
class Program
{
    static void Main(string[] args)
    {
        ActorSystem actorSystem = ActorSystem.Create("BankAccountSystem");
        Props bankAccountAccProps = Props.Create<BankAccountActor>();
        IActorRef bankAccActor = actorSystem.ActorOf(bankAccountAccProps, "abc");

        var remainBalance = bankAccActor.Ask<decimal>(new DebitAccMessage(100)).Result;
    }
}
internal class BankAccountActor : ReceiveActor
{
    private decimal _accBalance = 100;
    public BankAccountActor()
    {
        Receive<DebitAccMessage>(message => Debit(message));
        Receive<CreditAccMessage>(message => Credit(message));
    }
    public void Debit(DebitAccMessage debitMessage)
    {
        _accBalance += debitMessage.Amount;

        Sender.Tell(_accBalance);
    }
    public void Credit(CreditAccMessage debitMessage)
    {
        _accBalance -= debitMessage.Amount;

        Sender.Tell(_accBalance);
    }
}
internal class CreditAccMessage
{
    public CreditAccMessage(decimal amount)
    {
        Amount = amount;
    }
    public decimal Amount { get; private set; }
}
internal class DebitAccMessage
{
    public DebitAccMessage(decimal amount)
    {
        Amount = amount;
    }
    public decimal Amount { get; private set; }
}

}

Answer 1

它有效，因为在幕后，Ask创建了一个仅用于接收一条消息的actor实例，即预期答案。

Akka.net Sender关于非演员的背景

1 个答案: