c# socket Tcp相关问题

Question

我急用，请大家帮帮忙，谁有socket关于Tcp接收和传送信息的代码...谢谢了

Answer 1

我对这个不懂，但是最近要用，msdn一下子这么多，我有点接受不了，能不能给全代码？

Answer 2

using System;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;public class GetSocket
{
    private static Socket ConnectSocket(string server, int port)
    {
        Socket s = null;
        IPHostEntry hostEntry = null;        // Get host related information.
        hostEntry = Dns.GetHostEntry(server);        // Loop through the AddressList to obtain the supported AddressFamily. This is to avoid
        // an exception that occurs when the host IP Address is not compatible with the address family
        // (typical in the IPv6 case).
        foreach(IPAddress address in hostEntry.AddressList)
        {
            IPEndPoint ipe = new IPEndPoint(address, port);
            Socket tempSocket = 
                new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);            tempSocket.Connect(ipe);            if(tempSocket.Connected)
            {
                s = tempSocket;
                break;
            }
            else
            {
                continue;
            }
        }
        return s;
    }    // This method requests the home page content for the specified server.
    private static string SocketSendReceive(string server, int port) 
    {
        string request = "GET / HTTP/1.1\r\nHost: " + server + 
            "\r\nConnection: Close\r\n\r\n";
        Byte[] bytesSent = Encoding.ASCII.GetBytes(request);
        Byte[] bytesReceived = new Byte[256];        // Create a socket connection with the specified server and port.
        Socket s = ConnectSocket(server, port);        if (s == null)
            return ("Connection failed");        // Send request to the server.
        s.Send(bytesSent, bytesSent.Length, 0);          // Receive the server home page content.
        int bytes = 0;
        string page = "Default HTML page on " + server + ":\r\n";        // The following will block until te page is transmitted.
        do {
            bytes = s.Receive(bytesReceived, bytesReceived.Length, 0);
            page = page + Encoding.ASCII.GetString(bytesReceived, 0, bytes);
        }
        while (bytes > 0);        return page;
    }    public static void Main(string[] args) 
    {
        string host;
        int port = 80;        if (args.Length == 0)
            // If no server name is passed as argument to this program, 
            // use the current host name as the default.
            host = Dns.GetHostName();
        else
            host = args[0];        string result = SocketSendReceive(host, port); 
        Console.WriteLine(result);
    }
}

Answer 3

搞个基础的
class Client
    {
        private const int portNum = 13;//服务器端口，可以随意修改
        private const string hostName = "127.0.0.1";//服务器地址，127.0.0.1指本机         static void Main(string[] args)
        {
            try
            {
                Console.Write("Try to connect to " + hostName + ":" + portNum.ToString() + "\r\n");
                TcpClient client = new TcpClient(hostName, portNum);
                NetworkStream ns = client.GetStream();
                byte[] bytes = new byte[1024];
                int bytesRead = ns.Read(bytes, 0, bytes.Length);                Console.WriteLine(Encoding.ASCII.GetString(bytes, 0, bytesRead));                client.Close();                           }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
            Console.ReadLine();//由于是控制台程序，故为了清楚的看到结果，可以加上这句
        }
    }
 class Listener
    {
        private const int portNum = 13;//服务器端口，可以随意修改        static void Main(string[] args)
        {
            bool done = false;
            TcpListener listener = new TcpListener(portNum);
            listener.Start();
            while (!done)
            {
                Console.Write("Waiting for connection...");
                TcpClient client = listener.AcceptTcpClient();                Console.WriteLine("Connection accepted.");
                NetworkStream ns = client.GetStream();                byte[] byteTime = Encoding.ASCII.GetBytes(DateTime.Now.ToString());                try
                {
                    ns.Write(byteTime, 0, byteTime.Length);
                    ns.Close();
                    client.Close();
                }
                catch (Exception e)
                {
                    Console.WriteLine(e.ToString());
                }
            }            listener.Stop();
        }    }