[通信] C#多线程Socket-文件传输

FileSendClient :

Form1.cs

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

namespace FileSendClient
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            FileDialog fDg = new OpenFileDialog();
            if (fDg.ShowDialog() == DialogResult.OK)
            {
                FTClientCode.SendFile(fDg.FileName);
            }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label3.Text = FTClientCode.curMsg;
        }
    }

    //FILE TRANSFER USING C#.NET SOCKET - CLIENT
    class FTClientCode
    {
        public static string curMsg = "Idle";
        public static void SendFile(string fileName)
        {
            try
            {
               // IPAddress ipAddress = Dns.GetHostEntry("109.52.62.59").AddressList[0];

                IPAddress ipAddress2 = Dns.GetHostAddresses("109.52.62.59")[0];

                IPEndPoint ipEnd = new IPEndPoint(ipAddress2, 3333);
                Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);


                string filePath = "";

                fileName = fileName.Replace("\\", "/");
                while (fileName.IndexOf("/") > -1)
                {
                    filePath += fileName.Substring(0, fileName.IndexOf("/") + 1);
                    fileName = fileName.Substring(fileName.IndexOf("/") + 1);
                }


                byte[] fileNameByte = Encoding.ASCII.GetBytes(fileName);
                if (fileNameByte.Length > 850 * 1024)
                {
                    curMsg = "File size is more than 850kb, please try with small file.";
                    return;
                }

                curMsg = "Buffering ...";
                byte[] fileData = File.ReadAllBytes(filePath + fileName);
                byte[] clientData = new byte[4 + fileNameByte.Length + fileData.Length];
                byte[] fileNameLen = BitConverter.GetBytes(fileNameByte.Length);

                fileNameLen.CopyTo(clientData, 0);
                fileNameByte.CopyTo(clientData, 4);
                fileData.CopyTo(clientData, 4 + fileNameByte.Length);

                curMsg = "Connection to server ...";
                clientSock.Connect(ipEnd);

                curMsg = "File sending...";
                clientSock.Send(clientData);

                curMsg = "Disconnecting...";
                clientSock.Close();
                curMsg = "File transferred.";

            }
            catch (Exception ex)
            {
                if (ex.Message == "No connection could be made because the target machine actively refused it")
                    curMsg = "File Sending fail. Because server not running.";
                else
                    curMsg = "File Sending fail." + ex.Message;
            }

        }

        public static IPAddress GetLocalIP()
        {
            IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;
            foreach (IPAddress ipAddress in addressList)
            {
                if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
                    return ipAddress;
            }
            return addressList[0];
        }
    }
}

 

Form1.Designer.cs

namespace FileSendClient
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.button1 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(98, 120);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(157, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "Select File to Send";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label1.ForeColor = System.Drawing.Color.Green;
            this.label1.Location = new System.Drawing.Point(12, 22);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(359, 16);
            this.label1.TabIndex = 1;
            this.label1.Text = "That program can transfer small file. I\'ve test up to 1.5MB file";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(21, 157);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(79, 13);
            this.label2.TabIndex = 2;
            this.label2.Text = "Present Status:";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(106, 157);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(24, 13);
            this.label3.TabIndex = 3;
            this.label3.Text = "Idle";
            // 
            // timer1
            // 
            this.timer1.Enabled = true;
            this.timer1.Interval = 500;
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(375, 273);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Timer timer1;
    }
}

 

FileSendServer

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.IO.Compression;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Windows.Forms;

namespace FileSendServer
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            FTServerCode.receivedPath = "";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (FTServerCode.receivedPath.Length > 0)
                backgroundWorker1.RunWorkerAsync();
            else
                MessageBox.Show("Please select file receiving path");
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label5.Text = FTServerCode.receivedPath;
            label3.Text = FTServerCode.curMsg;
        }

        FTServerCode obj = new FTServerCode();
        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {

            obj.StartServer();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog fd = new FolderBrowserDialog();
            if (fd.ShowDialog() == DialogResult.OK)
            {
                FTServerCode.receivedPath = fd.SelectedPath;
            }
        }
    }
    //FILE TRANSFER USING C#.NET SOCKET - SERVER
    class FTServerCode
    {
        IPEndPoint ipEnd;
        Socket sock;
        public FTServerCode()
        {
            ipEnd = new IPEndPoint(IPAddress.Any, 5656);
            sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
            sock.Bind(ipEnd);
        }
        public static string receivedPath;
        public static string curMsg = "Stopped";
        public void StartServer()
        {
            try
            {
                curMsg = "Starting...";
                sock.Listen(100);

                curMsg = "Running and waiting to receive file.";
                Socket clientSock = sock.Accept();

                byte[] clientData = new byte[1024 * 5000];

                int receivedBytesLen = clientSock.Receive(clientData);
                curMsg = "Receiving data...";

                int fileNameLen = BitConverter.ToInt32(clientData, 0);
                string fileName = Encoding.ASCII.GetString(clientData, 4, fileNameLen);

                BinaryWriter bWrite = new BinaryWriter(File.Open(receivedPath + "/" + fileName, FileMode.Append)); ;
                bWrite.Write(clientData, 4 + fileNameLen, receivedBytesLen - 4 - fileNameLen);

                curMsg = "Saving file...";

                bWrite.Close();
                clientSock.Close();
                curMsg = "Reeived & Saved file; Server Stopped.";
            }
            catch (Exception ex)
            {
                curMsg = "File Receving error.";
            }
        }
    }
}

 

Form1.Designer.cs

namespace FileSendServer
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.button1 = new System.Windows.Forms.Button();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.backgroundWorker1 = new System.ComponentModel.BackgroundWorker();
            this.button2 = new System.Windows.Forms.Button();
            this.label5 = new System.Windows.Forms.Label();
            this.label6 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(40, 103);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(331, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "Start Server";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(37, 186);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(74, 13);
            this.label2.TabIndex = 5;
            this.label2.Text = "Server Status:";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(137, 186);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(47, 13);
            this.label3.TabIndex = 6;
            this.label3.Text = "Stopped";
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label4.ForeColor = System.Drawing.Color.ForestGreen;
            this.label4.Location = new System.Drawing.Point(12, 9);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(359, 16);
            this.label4.TabIndex = 7;
            this.label4.Text = "That program can transfer small file. I\'ve test up to 1.5MB file";
            // 
            // timer1
            // 
            this.timer1.Enabled = true;
            this.timer1.Interval = 500;
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // backgroundWorker1
            // 
            this.backgroundWorker1.DoWork += new System.ComponentModel.DoWorkEventHandler(this.backgroundWorker1_DoWork);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(40, 60);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(331, 23);
            this.button2.TabIndex = 8;
            this.button2.Text = "Select Receiving Path";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(137, 163);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(16, 13);
            this.label5.TabIndex = 10;
            this.label5.Text = "   ";
            // 
            // label6
            // 
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(37, 163);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(96, 13);
            this.label6.TabIndex = 9;
            this.label6.Text = "File receiving path:";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(431, 273);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.label6);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.Timer timer1;
        private System.ComponentModel.BackgroundWorker backgroundWorker1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label5;
        private System.Windows.Forms.Label label6;
    }
}