C#Socket聊天室（小白整理）

最新推荐文章于 2025-06-29 17:39:50 发布

不咬人的冷血蛇

最新推荐文章于 2025-06-29 17:39:50 发布

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文章标签： C#socket

最近算是0基础学了socket的编程，发现很多不友好。。其实是自己不知道，啊哈哈。最开始建立C#的脚本时要建立窗体，而不是控制台程序。之后建议根据界面，自己来写。还有别忘了Server和client建立两个程序哦。

图片分别为服务端，客户端。

Server

代码：（designer.cs，Server）

private void InitializeComponent()
{
this.listen_btn = new System.Windows.Forms.Button();
this.send_btn = new System.Windows.Forms.Button();
this.txtIP = new System.Windows.Forms.TextBox();
this.txtPort = new System.Windows.Forms.TextBox();
this.txtLog = new System.Windows.Forms.RichTextBox();
this.txtMsg = new System.Windows.Forms.RichTextBox();
this.cboIpPort = new System.Windows.Forms.ComboBox();
this.SuspendLayout();
//
// listen_btn
//
this.listen_btn.Location = new System.Drawing.Point(282, 12);
this.listen_btn.Name = "listen_btn";
this.listen_btn.Size = new System.Drawing.Size(90, 21);
this.listen_btn.TabIndex = 1;
this.listen_btn.Text = "开始监听";
this.listen_btn.UseCompatibleTextRendering = true;
this.listen_btn.Click += new System.EventHandler(this.Listen_Click);
//
// send_btn
//
this.send_btn.Location = new System.Drawing.Point(305, 409);
this.send_btn.Name = "cancel";
this.send_btn.Size = new System.Drawing.Size(130, 29);
this.send_btn.TabIndex = 2;
this.send_btn.Text = "发送消息";
this.send_btn.UseCompatibleTextRendering = true;
this.send_btn.Click += new System.EventHandler(this.send_Click);
//
// txtIP
//
this.txtIP.Location = new System.Drawing.Point(12, 12);
this.txtIP.Name = "txtIP";
this.txtIP.Size = new System.Drawing.Size(100, 21);
this.txtIP.TabIndex = 1;
this.txtIP.Text = "127.0.0.1";
//
// txtPort
//
this.txtPort.Location = new System.Drawing.Point(138, 12);
this.txtPort.Name = "txtPort";
this.txtPort.Size = new System.Drawing.Size(80, 21);
this.txtPort.TabIndex = 1;
//
// txtLog
//
this.txtLog.Location = new System.Drawing.Point(12, 57);
this.txtLog.Name = "txtLog";
this.txtLog.Size = new System.Drawing.Size(423, 154);
this.txtLog.TabIndex = 1;
this.txtLog.Text = "";
//
// txtMsg
//
this.txtMsg.Location = new System.Drawing.Point(12, 230);
this.txtMsg.Name = "txtMsg";
this.txtMsg.Size = new System.Drawing.Size(423, 154);
this.txtMsg.TabIndex = 3;
this.txtMsg.Text = "";
//
// cboIpPort
//
this.cboIpPort.Location = new System.Drawing.Point(403, 9);
this.cboIpPort.Name = "cboIpPort";
this.cboIpPort.Size = new System.Drawing.Size(104, 24);
this.cboIpPort.TabIndex = 4;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackColor = System.Drawing.SystemColors.Control;
this.ClientSize = new System.Drawing.Size(834, 450);
this.Controls.Add(this.txtMsg);
this.Controls.Add(this.listen_btn);
this.Controls.Add(this.txtIP);
this.Controls.Add(this.send_btn);
this.Controls.Add(this.txtPort);
this.Controls.Add(this.txtLog);
this.Controls.Add(this.cboIpPort);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();

}
private System.Windows.Forms.Button listen_btn;
private System.Windows.Forms.Button send_btn;
private System.Windows.Forms.TextBox txtIP;
private System.Windows.Forms.TextBox txtPort;
private System.Windows.Forms.RichTextBox txtLog;

private System.Windows.Forms.ComboBox cboIpPort;
private System.Windows.Forms.RichTextBox txtMsg;
#endregion

}

正式的socket服务端代码

public partial class Form1 : Form
{

public Form1()
{
InitializeComponent();
CheckForIllegalCrossThreadCalls = false;
}

private void Listen_Click(object sender, EventArgs e)
{
//ip地址
IPAddress ip = IPAddress.Parse(txtIP.Text);
//端口号
IPEndPoint point = new IPEndPoint(ip, int.Parse(txtPort.Text));
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
socket.Bind(point); //监听哪个端口号
socket.Listen(10); //最大连接数
ShowMsg("服务器开始监听");
Thread thread = new Thread(AcceptInfo);
thread.IsBackground = true;
thread.Start(socket);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
}
}
Dictionary<string, Socket> dic = new Dictionary<string, Socket>();
void AcceptInfo(object o)
{
Socket socket = o as Socket;
while (true)
{
try
{
Socket tSocket = socket.Accept();
string point = tSocket.RemoteEndPoint.ToString();
ShowMsg(point + "连接成功！");
cboIpPort.Items.Add(point);
dic.Add(point, tSocket);
Thread th = new Thread(ReceiveMsg);
th.IsBackground = true;
th.Start(tSocket);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
break;
}
}
}
void ReceiveMsg(object o)
{
Socket client = o as Socket;
while (true)
{
try
{
byte[] buffer = new byte[1024 * 1024];//接受数据
int n = client.Receive(buffer);//将接收到的数据放到buffer里，并返回实际长度
string words = Encoding.UTF8.GetString(buffer, 0, n);
ShowMsg(client.RemoteEndPoint.ToString() + ":" + words);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
break;
}
}
}
void ShowMsg(string msg)
{

txtLog.AppendText(msg+"\r\n");

}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
}

private void send_Click(object sender, EventArgs e)
{
try
{
ShowMsg(txtMsg.Text);
string ip = cboIpPort.Text; ;
byte[] buffer = Encoding.UTF8.GetBytes(txtMsg.Text);
dic[ip].Send(buffer);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
}
}

}

客户端Client代码（designer.cs部分的代码自行解决）

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
CheckForIllegalCrossThreadCalls = false; //这句话如果没有会报出 “线程间操作无效: 从不是创建控件“的错误
}
Socket client = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
private void conn_btn_Click(object sender, EventArgs e)
{
//连接到目标ip
IPAddress ip = IPAddress.Parse(txtIP.Text);
IPEndPoint point = new IPEndPoint(ip, int.Parse(txtPort.Text));
try
{
client.Connect(point);
ShowMsg("连接成功");
ShowMsg("服务器" + client.RemoteEndPoint.ToString());
ShowMsg("客户端" + client.LocalEndPoint.ToString());
Thread th = new Thread(ReceiveMsg);
th.IsBackground = true;
th.Start();
}
catch (Exception ex)
{

ShowMsg(ex.Message);
}
}
void ReceiveMsg()
{
while (true)
{
try
{
byte[] buffer = new byte[1024 * 1024];//接受数据
int n = client.Receive(buffer);//将接收到的数据放到buffer里，并返回实际长度
string words = Encoding.UTF8.GetString(buffer, 0, n);
ShowMsg(client.RemoteEndPoint.ToString() + ":" + words);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
break;
}
}
}
void ShowMsg(string msg)
{

txtInfo.AppendText(msg+"\r\n");

}

private void send_btn_Click(object sender, EventArgs e)
{
if (client != null)
{
try
{
ShowMsg(txtMsg.Text);
byte[] buffer = Encoding.UTF8.GetBytes(txtMsg.Text);
client.Send(buffer);
}
catch (Exception ex)
{
ShowMsg(ex.Message);
}
}
}
private void ClientForm_Load(object sender, EventArgs e)