无法建立连接，因为目标计算机在.NET套接字编程窗口应用程序中主动拒绝它 [英] No connection could be made because the target machine actively refused it in .NET socket programming windows application

问题描述

您好，

Hello,

No connection could be made because the target machine actively refused it in .net socket programming windows application

我想在本地服务器上传输zip文件，但是它收到错误。



如何解决这个问题？

请帮帮我。

先谢谢。



Ankit Agarwal

软件工程师



我尝试过：

I want to transfer zip file in local server but its getting error.

How to resolve this issue?
Please help me.
Thanks in Advance.

Ankit Agarwal
Software Engineer

What I have tried:

private void btnBrowse_Click_1(object sender, EventArgs e)
        {
            
            FolderBrowserDialog folderBrowserDialog1 = new FolderBrowserDialog();
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
                TextBoxValue = folderBrowserDialog1.SelectedPath;

            int count = panel1.Controls.OfType<Label>().ToList().Count;
            TextBox textbox = new TextBox();
            count = panel1.Controls.OfType<TextBox>().ToList().Count;
            textbox.Location = new Point(3, 25 * count);
            textbox.Size = new Size(188, 20);
            textbox.Name = "textbox_" + (count + 1);
            textbox.Text = TextBoxValue;
            
            arrayList.Add(TextBoxValue);
            //textbox.TextChanged += new System.EventHandler(this.TextBox_Changed);
            panel1.Controls.Add(textbox);
        }

        private void btnBackup_Click(object sender, EventArgs e)
        {
            //int count = panel1.Controls.OfType<Label>().ToList().Count;
            try
            {
                string ipAddress = txtIP.Text;
                int port = int.Parse(txtPort.Text);
                for (int i = 0; i < arrayList.Count; i++)
                {
                    using (Ionic.Zip.ZipFile zip = new Ionic.Zip.ZipFile())
                    {
                        zip.AddDirectory(arrayList[i].ToString());
                        //zip.Save(@"D:\abc" + "_" + (i + 1) + ".zip");
                        
                        //zip.Save(@"D:\abc" + "_" + (i + 1) + ".zip");
                        fileName = @"D:\abc" + "_" + (i + 1) + ".zip";
                        Task.Factory.StartNew(() => SendFile(ipAddress, port, fileName, shortFileName));
                        MessageBox.Show("Files zipped");
                    }
                }
            }
            catch (Ionic.Zip.ZipException ex)
            {
                MessageBox.Show(ex.Message);
            }
            if (checkBox1.Checked == true)
            {
                var psi = new ProcessStartInfo("shutdown", "/s /t 0");
                psi.CreateNoWindow = true;
                psi.UseShellExecute = false;
                Process.Start(psi);
                //ProcessStartInfo startinfo = new ProcessStartInfo("shutdown.exe", "-s");
                //Process.Start(startinfo);
            }
        }
        public void SendFile(string remoteHostIP, int remoteHostPort, string longFileName, string shortFileName)
        {
            try
            {
                if (!string.IsNullOrEmpty(remoteHostIP))
                {
                    byte[] fileNameByte = Encoding.ASCII.GetBytes(shortFileName);
                    byte[] fileData = File.ReadAllBytes(longFileName);
                    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);
                    TcpClient clientSocket = new TcpClient(remoteHostIP,remoteHostPort); // Error in this line.
                    NetworkStream networkStream = clientSocket.GetStream();
                    networkStream.Write(clientData, 0, clientData.GetLength(0));
                    networkStream.Close();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

推荐答案

如果是本地服务器，只需使用系统。 IO.File.Copy 复制文件。根据运行代码的机器，您将需要到其他机器系统/驱动器/文件夹的完整DNC路径。当然，如果你没有正确的权限，这将无效。



你的另一个选择是使用内置的.Net FTP对象进行传输文件。

If it's a local server, just use System.IO.File.Copy to copy the file. Depending on the machine running the code, you'll need the full DNC path to the other machine system/drive/folder. Of course, that won't work if you don't have the correct permissions.

Your other option is to use the built-in .Net FTP objects to transfer the file.

这篇关于无法建立连接，因为目标计算机在.NET套接字编程窗口应用程序中主动拒绝它的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！