WinForm制作文件传输助手，Tcp局域网传输文件，传输速度受限于宽带和硬盘速度上限

2023-06-07 01:37| 来源: 网络整理| 查看: 265

先看看传输使用界面的效果，可以选择发送和接收。

需要同一局域网的电脑先选择IP(IP能自动读取到)开启接收，注意这里需要自己更改一下文件名和存储格式，也可以不改传完再改，然后另一台电脑选择文件发送，之后会存储在选的的文件夹。

现在这个功能比较简单，只能单文件发送，但是其实比U盘硬盘方便，一般的六类网线传输压缩包在50M/s以上，U盘硬盘复制就不行了，特别如果是像我们学校这种网络结构，一个学校都在一个局域网，那真的方便！！！

至于这个小东西为什么会出现，是因为项目上有些特殊的地方限制太多了，连插硬盘都需要关软件，联网又要开很不方便，网络限制一般软件只能局域网通信，还要开特定的端口等，你才能在电脑上通信，这样和机房的服务器远程的时候文件就不好拿过去，又不可能每次都去开机房的门。

普通的局域网用特定IP和端口，通信也是很方便的。

这里提醒一下，局域网的共享文件夹也是可以的，所以这算是比较方便吧，毕竟共享大家都能访问了。

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Net.Sockets; using System.Net; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace WinFormsApp1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); this.MaximizeBox = false; this.StartPosition = FormStartPosition.CenterScreen; } private void Form2_Load(object sender, EventArgs e) { Get_Local_IPAddress(); comboBox1.SelectedIndex = 0; radioButton1.Checked = true; } public void Get_Local_IPAddress() { IPAddress[] ips = Dns.GetHostAddresses(Dns.GetHostName()); foreach (IPAddress ip in ips) { if (ip.AddressFamily == AddressFamily.InterNetwork) { comboBox1.Items.Add(ip.ToString()); } } } private void radioButton1_CheckedChanged(object sender, EventArgs e) { button1.Text = "选择文件"; button2.Text = "开始发送"; textBox3.Text = ""; } private void radioButton2_CheckedChanged(object sender, EventArgs e) { button1.Text = "选择位置"; button2.Text = "等待连接"; textBox3.Text = @"C:\1.noname"; } private void button2_Click(object sender, EventArgs e) { string filePath = textBox3.Text; if (textBox3.Text == "") { MessageBox.Show("检查文件位置！"); return; } button1.Enabled = false; button2.Enabled = false; if (radioButton1.Checked == true) { TcpClient client = new TcpClient(); client.Connect(IPAddress.Parse(comboBox1.Text), int.Parse(textBox2.Text)); FileStream fileStream = File.OpenRead(@filePath); NetworkStream networkStream = client.GetStream();//定义网络数据流 using (FileStream fread = new FileStream(@filePath, FileMode.Open, FileAccess.Read)) { while (true) { byte[] buffer = new byte[1024 * 1024 * 5]; int a = fread.Read(buffer, 0, buffer.Length); if (a == 0) break; networkStream.Write(buffer, 0, a); } } fileStream.Close(); client.Close(); MessageBox.Show("发送成功！"); button1.Enabled = true; button2.Enabled = true; } else if (radioButton2.Checked == true) { TcpListener listener = new TcpListener(IPAddress.Parse(comboBox1.Text), int.Parse(textBox2.Text));// 创建一个TCP监听器并开始侦听连接 listener.Start(); // 接受连接并获取数据 TcpClient client = listener.AcceptTcpClient(); NetworkStream networkStream = client.GetStream(); using (FileStream fwrite = new FileStream(@filePath, FileMode.Create, FileAccess.Write)) { while (true) { byte[] buffer = new byte[client.ReceiveBufferSize]; int a = networkStream.Read(buffer, 0, client.ReceiveBufferSize); if (a == 0) { fwrite.Close(); break; } fwrite.Write(buffer, 0, a); } } client.Close(); listener.Stop(); MessageBox.Show("文件已接收并保存在：" + textBox3.Text); button1.Enabled = true; button2.Enabled = true; } } private void button1_Click(object sender, EventArgs e) { if (radioButton1.Checked == true) { OpenFileDialog dialog = new OpenFileDialog(); dialog.Multiselect = false;//该值确定是否可以选择多个文件 dialog.Title = "请选择文件"; dialog.Filter = "所有文件(*.*)|*.*"; if (dialog.ShowDialog() == DialogResult.OK) { textBox3.Text = dialog.FileName; } } else if (radioButton2.Checked == true) { FolderBrowserDialog dialog = new FolderBrowserDialog(); dialog.Description = "请选择文件夹"; dialog.SelectedPath = "C:\\"; if (dialog.ShowDialog() == DialogResult.OK) { if (radioButton2.Checked == true) { textBox3.Text = dialog.SelectedPath; } if (radioButton2.Checked == true) { textBox3.Text = dialog.SelectedPath + @"\1.noname"; } } } } private void groupBox1_Enter(object sender, EventArgs e) { } } }

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