GUI방식으로 구성한 EchoClient

이 내용은 TCP/IP 소켓 프로그래밍 C#을 참고 하였습니다.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Net.Sockets;



namespace FormsSocket

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button2_Click(object sender, EventArgs e)

        {

            Application.Exit();

        }



        private void button1_Click(object sender, EventArgs e)

        {

            if (textBox1.Text.Length < 1)

            {

                MessageBox.Show("전송할 메시지가 없습니다.");

                return;

            }

            MsgSend(textBox1.Text);

        }





        public void MsgSend(string Msg)

        {

            String server = "192.168.0.60";



            byte[] byteBuffer = Encoding.Unicode.GetBytes(Msg);



            int servPort = 7;



            TcpClient client = null;

            NetworkStream netStream = null;



            try

            {

                client = new TcpClient(server, servPort);



                IngMsg.Text = "Connected to server ... Sending echo string";



                netStream = client.GetStream();

                netStream.Write(byteBuffer, 0, byteBuffer.Length);



                IngMsg.Text = "Send " + byteBuffer.Length + " bytes to server...";



                int totalBytesRcvd = 0;

                int bytesRcvd = 0;





                while (totalBytesRcvd < byteBuffer.Length)

                {

                    if ((bytesRcvd = netStream.Read(byteBuffer, totalBytesRcvd,

                    byteBuffer.Length - totalBytesRcvd)) == 0)

                    {

                        IngMsg.Text = "Connection closed prematurely.";

                        break;

                    }

                    totalBytesRcvd += bytesRcvd;

                }



                // textBox2.Text = "Received " + totalBytesRcvd + " bytes from server: " + 

                textBox2.Text = Encoding.Unicode.GetString(byteBuffer, 0, totalBytesRcvd);

            } catch (Exception e) {

                IngMsg.Text = e.Message;

            } finally {

                netStream.Close();

                client.Close();

            }

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            IngMsg.Text = "";



            if (textBox1.CanFocus)

            {

                textBox1.Focus();

            }

        }

    }

               

}

화면 구성