sockets - 将带有套接字编程的字典从服务器发送到客户端

Question

如何将字典从服务器发送到客户端？

我要发送以下字典

Dictionary rates = new Dictionary(); 
        rates.Add("usd", 47.5); 
        rates.Add("eur", 60.4);
        rates.Add("ukp", 78.8);

更新:

代码不起作用，我的问题在哪里？这种做法是否错误？

请给我看正确的密码

服务器中的代码:

 public void GetListn()
    {
        var dataToSend = new DataToSend { Rates = new Dictionary<string, decimal>() };

        dataToSend.Rates.Add("asd", decimal.Parse("12.23"));
        dataToSend.Rates.Add("asd", decimal.Parse("41.11"));
        dataToSend.Rates.Add("asd", decimal.Parse("25.23"));

        var stream = new MemoryStream();
        var formatter = new BinaryFormatter();
        formatter.Serialize(stream, dataToSend.Rates);

        client.Send(stream.ToArray());
    }


public class DataToSend
{
    public Dictionary<string, decimal> Rates { get; set; }
}

客户端中的代码:

        private void WindowLoaded(object sender, RoutedEventArgs e)
    {
        try
        {
            _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            _server.Connect(_ipep);

            _server.Send(Encoding.Unicode.GetBytes("GetList"));

            _data = new byte[BufferSize];

            _recv = _server.Receive(_data);

            var stream = new MemoryStream(_server.Receive(_data));
            var formatter = new BinaryFormatter();
            var dataToSend = (DataToSend)formatter.Deserialize(stream);

        }
        catch (Exception exception)
        {
            MessageBox.Show(exception.Message, "Error", MessageBoxButton.OK,
                                MessageBoxImage.Error);
        }

    public class DataToSend
    {
        public Dictionary<string, string> Rates { get; set; }
    }

Answer 1

Dictionary rates = new Dictionary();？

从您的示例代码中，我假设您的意思是Dictionary rates = new Dictionary<string, decimal>();
因此，无论如何，既然您明确询问了字典，我还假设您已经可以发送原始数据了？在这种情况下，请创建一个新类:

[Serialisable]
public class DataToSend
{
    public Dictionary<string, decimal> Rates { get; set; }
}

然后在您的客户端中填充DataToSend对象，并将其序列化为

var stream = new MemoryStream();
var formatter = new BinaryFormatter();
formatter.Serialize(stream, DataToSend);

并通过套接字发送该流。