tcpclient

阅读目录 简述 一些基础类 利用Socket编写聊天程序 利用TCP编写聊天程序 结束 简述 我们做软件工作的虽然每天都离不开网络，可网络协议细节却不是每个人都会接触和深入了解。我今天就来和大家一起学习下Socket，并写一个简单的聊天程序。 一些基础类 首先我们每天打开浏览器访问网页信息都是使用的HTTP/HTTPS协议，而HTTP是通过的TCP建立的连接。TCP底层又是通过的Socket套接字进行的通信。所以他们之间的抽象关系是： 我们在学习Socket编程的时候可能会需要用到IPEndPoint、Dns、IPAddress等类，再往上TCP相关有TcpListener、TcpClient、NetworkStream，再往上就是大家熟悉的HttpClient等。 IPEndPoint、Dns、IPAddress基础作用如下： //根据DNS获取域名绑定的IP foreach (var address in Dns.GetHostEntry("www.baidu.com").AddressList) { Console.WriteLine($"百度IP:{address}"); } //字符串转IP地址 IPAddress ipAddress = IPAddress.Parse("192.168.1.101"); //通过IP和端口构造IPEndPoint对象，用于远程连接 /

I have a client socket which sends messages to the server.I want to get an acknowledgement on the client side whenever the server receives the message. Is it possible to get that acknowledgement. I developed the client using apache mina. Thanks in advance. There are no messages in TCP, only a byte stream. There is an internal ACK mechanism that tracks how much of the stream has been correctly received, but it is not available to applications. If you want an acknowledgment from the server, your server will have to send it. 来源： https://stackoverflow.com/questions/12792967/how-to-get-an

I have a problem with IdTelnet (indy 10.1). I can't read the data from a server in Unicode mode. and now I want to write the telnet terminal with IdTCPClient. The server sometimes send one line and sometimes more and more lines. But there is not a fixed time between sending. Now my problem is that when I must read data from InBuffer. Or when I must use the ReadLn function to read the data from the server, how many times must I run the ReadLn? TIdTelnet is a multithreaded component. It has an internal thread that continuously reads from the socket, firing the TIdTelnet.OnDataAvailable event

When the async_read_some() returns an exception of EOF does it mean the server stopped sending data or does it mean the connection is closed. I'm having this confusion as I cant find a method to know if the client has received all data from server. It indicates the connection has closed. Although documented elswhere it is still applicable: An error code of boost::asio::error::eof indicates that the connection was closed by the peer. If a client needs to know that all data has been received from the server, then consider supporting framing in the communication protocol. Boost.Asio provides

Consider the following code: internal class Program { private static void Main(string[] args) { var client = new TcpClient(); client.ConnectAsync("localhost", 7105).Wait(); var stream = client.GetStream(); var observable = stream.ReadDataObservable().Repeat(); var s = from d in observable.Buffer(4) let headerLength = IPAddress.NetworkToHostOrder(BitConverter.ToInt16(d.ToArray(), 2)) let b = observable.Take(headerLength) select b.ToEnumerable().ToArray(); s.Subscribe(a => Console.WriteLine("{0}", a)); Console.ReadLine(); } } public static class Extensions { public static IObservable<byte>