C#基于Sockets类实现TCP通讯
本文实例为大家分享了C#基于Sockets类实现TCP通讯的具体代码,供大家参考,具体内容如下
最终效果
TCPClient
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Net; using System.Net.Sockets; using System.Threading; namespace TCPClient02 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Socket socketSend; private void button1_Click(object sender, EventArgs e) { //Create socket socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress ip = IPAddress.Parse(textBox1.Text); IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(textBox2.Text)); IDInfo idinfo = new IDInfo(); //Read ID number information //Get the IP address and port number of the remote server socketSend.Connect(point); ShowMessages("Connection succeeded"); //Start a new thread and keep receiving messages sent by the server Thread th = new Thread(ReciveMessages); th.IsBackground = true; th.Start(); } private void button2_Click(object sender, EventArgs e) { string str = textBox3.Text.Trim(); byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); socketSend.Send(buffer); } void ShowMessages(string str) { textBox4.AppendText(str + "\r\n"); } void ReciveMessages() { while (true) { byte[] buffer = new byte[1024 * 1024 * 3]; int r = socketSend.Receive(buffer); if (r == 0) { break; } string s = Encoding.UTF8.GetString(buffer, 0, r); ShowMessages(socketSend.RemoteEndPoint + ":" + s); } } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } } }
TCPserver
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Net.Sockets; using System.Net; using System.Threading; namespace TCPserver { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { try { //创建一个负责监听的Socket Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //创建ip地址和端口号 //IPAddress ip = IPAddress.Parse(textBox1.Text); IPAddress ip = IPAddress.Any; IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(textBox2.Text)); //让负责监听的socket绑定ip地址和端口号 socketWatch.Bind(point); ShowMsg("监听成功"); //设置监听队列(某一时刻连接客户端的最大数目) socketWatch.Listen(10); //线程执行的方法 Thread th = new Thread(Listen); //服务器开始监听 th.IsBackground = true; th.Start(socketWatch); } catch { } } void ShowMsg(string str) { textBox3.AppendText(str + "\r\n"); } /// <summary> /// 等待客户端的连接 并且创建与之通信的Socket /// </summary> /// Socket socketSend; void Listen(object o) { Socket socketWatch = o as Socket; //负责监听的socket 来接收客户端的连接 //创建跟客户端通信的socket while (true) { try { socketSend = socketWatch.Accept(); ShowMsg(socketSend.RemoteEndPoint.ToString() + "连接成功"); //开始一个新的线程不断接受客户端发送过来的消息 Thread th = new Thread(Recive); th.IsBackground = true; th.Start(socketSend); } catch { } } } /// <summary> /// 服务器不断接受客户端发送过来的消息 /// </summary> /// <param name="o"></param> void Recive(object o) { Socket socketSend = o as Socket; while (true) { try { //客户端连接成功后,服务器应该接收客户端发来的消息 byte[] buffer = new byte[1024 * 1024 * 2]; //实际接收到的有效字节数 int bytelen = socketSend.Receive(buffer); if (bytelen == 0) { break; } string str = Encoding.UTF8.GetString(buffer, 0, bytelen); ShowMsg(socketSend.RemoteEndPoint + ":" + str); } catch { } } } private void textBox1_TextChanged(object sender, EventArgs e) { } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } /// <summary> /// 服务器给客户端发送消息 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button3_Click(object sender, EventArgs e) { string str = textBox4.Text; byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); socketSend.Send(buffer); } } }
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