【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：