C#:TcpClient(客户端) and TcpServer(服务端)

末蓝、 2022-08-05 07:22 118阅读 0赞

服务端:

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; using System.IO; using System.Net.Sockets; using System.Net; namespace PictureClient \{ /// <summary> /// Interaction logic for PictureClientWindow.xaml /// </summary> public partial class PictureClientWindow : Window \{ private const int bufferSize = 8192; public PictureClientWindow() \{ InitializeComponent(); \} private TcpClient ConnectToServer() \{ TcpClient client = new TcpClient(); IPHostEntry host = Dns.GetHostEntry(Properties.Settings.Default.Server); var address = (from h in host.AddressList where h.AddressFamily == AddressFamily.InterNetwork select h).First(); client.Connect( address.ToString(), Properties.Settings.Default.ServerPort); return client; \} private void buttonGetPictureList\_Click(object sender, RoutedEventArgs e) \{ //send data TcpClient client = ConnectToServer(); NetworkStream clientStream = client.GetStream(); string request = "LIST"; byte\[\] requestBuffer = Encoding.ASCII.GetBytes(request); clientStream.Write(requestBuffer, 0, requestBuffer.Length); //read response byte\[\] responseBuffer = new byte\[bufferSize\]; MemoryStream memStream = new MemoryStream(); int bytesRead = 0; do \{ bytesRead = clientStream.Read(responseBuffer, 0, bufferSize); memStream.Write(responseBuffer, 0, bytesRead); \} while (bytesRead > 0); clientStream.Close(); client.Close(); byte\[\] buffer = memStream.GetBuffer(); string response = Encoding.ASCII.GetString(buffer); this.DataContext = response.Split(':'); \} private void buttonGetpicture\_Click(object sender, RoutedEventArgs e) \{ TcpClient client = ConnectToServer(); NetworkStream clientStream = client.GetStream(); string request = "FILE:" + this.listBoxFiles.SelectedItem.ToString(); byte\[\] requestBuffer = Encoding.ASCII.GetBytes(request); clientStream.Write(requestBuffer, 0, requestBuffer.Length); byte\[\] responseBuffer = new byte\[bufferSize\]; MemoryStream memStream = new MemoryStream(); int bytesRead = 0; do \{ bytesRead = clientStream.Read(responseBuffer, 0, bufferSize); memStream.Write(responseBuffer, 0, bytesRead); \} while (bytesRead > 0); clientStream.Close(); client.Close(); if (memStream.GetBuffer().Length != 0) \{ BitmapImage bitmapImage = new BitmapImage(); memStream.Seek(0, SeekOrigin.Begin); bitmapImage.BeginInit(); bitmapImage.StreamSource = memStream; bitmapImage.EndInit(); pictureBox.Source = bitmapImage; \} \} \} \}

客户端:

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net; using System.Net.Sockets; using System.IO; namespace PictureServer \{ internal static class PictureHelper \{ internal static IEnumerable<string> GetFileList() \{ return from file in Directory.GetFiles(Properties.Settings.Default.PictureDirectory) select Path.GetFileName(file); \} internal static byte\[\] GetFileListBytes() \{ try \{ IEnumerable<string> files = PictureHelper.GetFileList(); StringBuilder responseMessage = new StringBuilder(); foreach (string s in files) \{ responseMessage.Append(s); responseMessage.Append(":"); \} return Encoding.ASCII.GetBytes(responseMessage.ToString()); \} catch (System.Exception ex) \{ Console.WriteLine(ex.Message); throw; \} \} \} class Program \{ static void Main(string\[\] args) \{ TcpListener listener = new TcpListener(IPAddress.Any, Properties.Settings.Default.Port); listener.Start(); Console.WriteLine("Server running..."); while (true) \{ const int bufferSize = 8192; TcpClient client = listener.AcceptTcpClient(); NetworkStream clientStream = client.GetStream(); byte\[\] buffer = new byte\[bufferSize\]; int readBytes = 0; readBytes = clientStream.Read(buffer, 0, bufferSize); string request = Encoding.ASCII.GetString(buffer).Substring(0, readBytes); if (request.StartsWith("LIST", StringComparison.Ordinal)) \{ byte\[\] responseBuffer = PictureHelper.GetFileListBytes(); clientStream.Write(responseBuffer, 0, responseBuffer.Length); \} else if (request.StartsWith("FILE", StringComparison.Ordinal)) \{ string\[\] requestMessage = request.Split(':'); string filename = requestMessage\[1\]; try \{ byte\[\] data = File.ReadAllBytes( Path.Combine(Properties.Settings.Default.PictureDirectory, filename) ); clientStream.Write(data, 0, data.Length); \} catch(IOException e) \{ Console.WriteLine("IOException: " + e.Message); \} catch(WebException e) \{ Console.WriteLine("WebException: " + e.Message); \} catch(Exception e) \{ Console.WriteLine("Other Exception: " + e.Message); \} \} clientStream.Close(); \} \} \} \}

附客户端WPF代码:

<Window x:Class="PictureClient.PictureClientWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Picture Client" Height="329" Width="616"> <Grid Name="PictureClient"> <Grid.ColumnDefinitions> <ColumnDefinition Width="19\*" /> <ColumnDefinition Width="563\*" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="85\*" /> <RowDefinition Height="21\*" /> <RowDefinition Height="13\*" /> <RowDefinition Height="23\*" /> <RowDefinition Height="29\*" /> <RowDefinition Height="120\*" /> </Grid.RowDefinitions> <Image x:Name="pictureBox" Grid.RowSpan="12" Margin="6,0,6,10" Grid.ColumnSpan="12" /> <Button HorizontalAlignment="Right" Margin="0,21,18,40" Name="buttonGetPictureList" Width="168" Click="buttonGetPictureList\_Click" Grid.Column="1">Get Picture List</Button> <Button Grid.Row="5" Height="28" HorizontalAlignment="Right" Margin="0,0,17,10" Name="buttonGetpicture" VerticalAlignment="Bottom" Width="169" Click="buttonGetpicture\_Click" Grid.Column="1">Get Picture</Button> <ListBox ItemsSource="\{Binding\}" Grid.RowSpan="6" HorizontalAlignment="Right" Margin="0,54,19,47" Name="listBoxFiles" Width="167" Grid.Column="1" /> </Grid> </Window>