TCP/IP Client Socket Program in C#.Net Using IP Address And Port Number

问题

TCP/IP Client Socket Program. Here My Main Requirement is Client Send Message and server receive message and store in database table in C#.Net, Using Server IP Address and Port Number.

回答1:

You are talking about a simple Server-Client program.

What you need to do.

Create a server program and run it first
Create a client and connect to your running server using Connect("SERVER IP", PORT)
Now when client is connected to server, receive message to server use database conenctions to store that message in database

Guides :

Write server - http://csharp.net-informations.com/communications/csharp-server-socket.htm
Write client - http://csharp.net-informations.com/communications/csharp-client-socket.htm
C# database access [SQL] - http://csharp.net-informations.com/data-providers/csharp-sql-server-connection.htm

UPDATE - As requested and as a guidance here is a working client and a server

CLIENT-

    using System;
    using System.Text;
    using System.Net;
    using System.Net.Sockets;
    using System.IO;


    namespace socket_prog
    {
        class Client
        {
            private static void Main(String[] args)
            {
                byte[] data = new byte[10];

                IPHostEntry iphostInfo = Dns.GetHostEntry(Dns.GetHostName());
                IPAddress ipAdress = iphostInfo.AddressList[0];
                IPEndPoint ipEndpoint = new IPEndPoint(ipAdress, 32000);

                Socket client = new Socket(ipAdress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

                try
                {
                    client.Connect(ipEndpoint);

                    Console.WriteLine("Socket created to {0}", client.RemoteEndPoint.ToString());

                    byte[] sendmsg = Encoding.ASCII.GetBytes("This is from Client\n");

                    int n = client.Send(sendmsg);

                    int m = client.Receive(data);

                    Console.WriteLine("" + Encoding.ASCII.GetString(data));
                    client.Shutdown(SocketShutdown.Both);
                    client.Close();

                }
                catch (Exception e)
                {
                    Console.WriteLine(e.ToString());
                }

                Console.WriteLine("Transmission end.");
                Console.ReadKey();

            }
        }
    }

SERVER-

using System;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.IO;

namespace socket_prog
{
    class Server
    {
        static void Main(string[] args)
        {
            byte[] buffer = new byte[1000];
            byte[] msg = Encoding.ASCII.GetBytes("From server\n");
            string data = null;

            IPHostEntry iphostInfo = Dns.GetHostEntry(Dns.GetHostName());
            IPAddress ipAddress = iphostInfo.AddressList[0];
            IPEndPoint localEndpoint = new IPEndPoint(ipAddress, 32000);

            ConsoleKeyInfo key;
            int count = 0;

            Socket sock = new Socket(ipAddress.AddressFamily,
                SocketType.Stream, ProtocolType.Tcp);


            sock.Bind(localEndpoint);
            sock.Listen(5);

            while (true)
            {

                Console.WriteLine("\nWaiting for clients..{0}", count);
                Socket confd = sock.Accept();

                int b = confd.Receive(buffer);
                data += Encoding.ASCII.GetString(buffer, 0, b);

                Console.WriteLine("" + data);
                data = null;

                confd.Send(msg);

                Console.WriteLine("\n<< Continue 'y' , Exit 'e'>>");
                key = Console.ReadKey();
                if (key.KeyChar == 'e')
                {
                    Console.WriteLine("\nExiting..Handled {0} clients", count);
                    confd.Close();
                    System.Threading.Thread.Sleep(5000);
                    break;
                }
                confd.Close();
                count++;
            }
        }
    }

}

Run server first. Then run client.

来源：https://stackoverflow.com/questions/27539938/tcp-ip-client-socket-program-in-c-net-using-ip-address-and-port-number

标签

sockets

client-server

ip-address

tcp-ip