【C#】使用TcpListener和TcpClient实现简单通信

本例子为简单使用TcpListener和TcpClient实现通信，含有诸多不足，仅供初学者参考。

server：

using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using System.Threading.Tasks; 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.Navigation; using System.Windows.Shapes; namespace Server { /// <summary> /// MainWindow.xaml 的交互逻辑 /// </summary> public partial class MainWindow : Window { private TcpListener myListener; private TcpClient newClient; public BinaryReader br; public BinaryWriter bw; public MainWindow() { InitializeComponent(); } private void button_Click(object sender, RoutedEventArgs e) { Thread myThread = new Thread(ServerA); myThread.Start(); } private void ServerA() { IPAddress ip = IPAddress.Parse("127.0.0.1");//服务器端ip myListener = new TcpListener(ip, 7890);//创建TcpListener实例 myListener.Start();//start newClient = myListener.AcceptTcpClient();//等待客户端连接 label.Dispatcher.Invoke(()=>label.Content = "连接成功"); while (true) { try { NetworkStream clientStream = newClient.GetStream();//利用TcpClient对象GetStream方法得到网络流 br = new BinaryReader(clientStream); string receive = null; receive = br.ReadString();//读取 textBox.Dispatcher.Invoke(() => textBox.Text += receive+"\r\n"); } catch { MessageBox.Show("接收失败！"); } } } //发送消息 private void send_Click(object sender, RoutedEventArgs e) { //利用TcpClient对象GetStream方法得到网络流 NetworkStream clientStream = newClient.GetStream(); bw = new BinaryWriter(clientStream); //写入 bw.Write(message.Text); textBox.Text += message.Text + "\r\n"; } } }

client:

using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using System.Threading.Tasks; 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.Navigation; using System.Windows.Shapes; namespace Client { /// <summary> /// MainWindow.xaml 的交互逻辑 /// </summary> public partial class MainWindow : Window { private TcpClient client; public BinaryReader br; public BinaryWriter bw; public MainWindow() { InitializeComponent(); } private void button_Click(object sender, RoutedEventArgs e) { Thread myThread = new Thread(ClientA); myThread.Start(); } private void ClientA() { //通过服务器的ip和端口号，创建TcpClient实例 client = new TcpClient("127.0.0.1", 7890); label.Dispatcher.Invoke(()=> label.Content = "与服务器连接成功"); while (true) { try { NetworkStream clientStream = client.GetStream(); br = new BinaryReader(clientStream); string receive = null; receive = br.ReadString(); textBox.Dispatcher.Invoke(() => textBox.Text += receive + "\r\n"); } catch { MessageBox.Show("接收失败！"); } } } //发送消息 private void send_Click(object sender, RoutedEventArgs e) { NetworkStream clientStream = client.GetStream(); bw = new BinaryWriter(clientStream); bw.Write(message.Text); textBox.Text += message.Text + "\r\n"; } } }

补充：

textbox多行显示

(1)将TextWrapping设为”Wrap”

(2)将AcceptsReturn设为”True”

(3)将VerticalScrollBarVisibility设置为”Visible”

运行结果：