简单的Socket通信(简单的在线聊天)---winform
注:本博客适合刚开始学习winform程序的初学者,大牛请绕道(跪求大牛指导文中不足)
.....10w字废话自动省略,直接开始正题.
首先从最基本的建立winform开始(本项目用的Vs2017)
新建->项目->选中C#->选择Windows窗体应用->确定
创建完成后可以点击工具栏进行拖拽控件 ,双击控件进入事件的逻辑处理,右击鼠标选择属性进行配置
各属性的作用可参考微软文档 https://docs.microsoft.com/zh-cn/dotnet/api/system.windows.forms.control.accessiblename?view=netframework-4.8
首先展示一下效果图
注：
博主在一台电脑上创建了两个项目,打开两个VisualStudio（一个运行服务端，一个运行客户端），
由于socked端口占用问题，
服务端和客户端运行起来后，
客户端IP输入自己电脑的IP->端口port随便输入->点击连接,提示连接成功。例：IP：192.168.1.23 port:80
服务端IP输入自己电脑IP->端口port随便输入--->点击开始监听，提示监听成功。例：IP:192.168.1.23 port:81
客户端IP输入自己电脑IP->端口port输入服务端端口号->点击连接,提示连接成功可以开始发送消息：例：IP:192.168.1.23 port:81
（从上到下按顺序执行）
以上操作是因为服务端、客户端在同一台电脑上，造成端口占用， 如果服务端和客户端分开的话客户端可以直接输入服务端ip和端口连接监听。
接下来贴代码:
服务端
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Designer.cs文件代码 (小白不会设置控件属性的话,可以跳过拖拽控件,直接复制以下代码)
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namespace Mywindows { partial class Form1 { /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// 清理所有正在使用的资源。 /// </summary> /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows 窗体设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要修改 /// 使用代码编辑器修改此方法的内容。 /// </summary> private void InitializeComponent() { this.panel1 = new System.Windows.Forms.Panel(); this.tb_ip = new System.Windows.Forms.TextBox(); this.lb_Ip = new System.Windows.Forms.Label(); this.lb_port = new System.Windows.Forms.Label(); this.tb_port = new System.Windows.Forms.TextBox(); this.bt_connnect = new System.Windows.Forms.Button(); this.listBox1 = new System.Windows.Forms.ListBox(); this.txt_msg = new System.Windows.Forms.TextBox(); this.bt_send = new System.Windows.Forms.Button(); this.panel1.SuspendLayout(); this.SuspendLayout(); // // panel1 // this.panel1.Controls.Add(this.bt_connnect); this.panel1.Controls.Add(this.lb_port); this.panel1.Controls.Add(this.tb_port); this.panel1.Controls.Add(this.lb_Ip); this.panel1.Controls.Add(this.tb_ip); this.panel1.Location = new System.Drawing.Point(21, 12); this.panel1.Name = "panel1"; this.panel1.Size = new System.Drawing.Size(580, 70); this.panel1.TabIndex = 0; // // tb_ip // this.tb_ip.Location = new System.Drawing.Point(44, 18); this.tb_ip.Name = "tb_ip"; this.tb_ip.Size = new System.Drawing.Size(100, 21); this.tb_ip.TabIndex = 0; this.tb_ip.Text = "127.0.0.1"; // // lb_Ip // this.lb_Ip.AutoSize = true; this.lb_Ip.Location = new System.Drawing.Point(15, 21); this.lb_Ip.Name = "lb_Ip"; this.lb_Ip.Size = new System.Drawing.Size(23, 12); this.lb_Ip.TabIndex = 1; this.lb_Ip.Text = "IP:"; // // lb_port // this.lb_port.AutoSize = true; this.lb_port.Location = new System.Drawing.Point(158, 24); this.lb_port.Name = "lb_port"; this.lb_port.Size = new System.Drawing.Size(35, 12); this.lb_port.TabIndex = 3; this.lb_port.Text = "Port:"; // // tb_port // this.tb_port.Location = new System.Drawing.Point(199, 21); this.tb_port.Name = "tb_port"; this.tb_port.Size = new System.Drawing.Size(100, 21); this.tb_port.TabIndex = 2; this.tb_port.Text = "80"; // // bt_connnect // this.bt_connnect.Location = new System.Drawing.Point(316, 15); this.bt_connnect.Name = "bt_connnect"; this.bt_connnect.Size = new System.Drawing.Size(132, 42); this.bt_connnect.TabIndex = 4; this.bt_connnect.Text = "开始监听"; this.bt_connnect.UseVisualStyleBackColor = true; this.bt_connnect.Click += new System.EventHandler(this.bt_connnect_Click); // // listBox1 // this.listBox1.FormattingEnabled = true; this.listBox1.ItemHeight = 12; this.listBox1.Location = new System.Drawing.Point(21, 112); this.listBox1.Name = "listBox1"; this.listBox1.Size = new System.Drawing.Size(580, 124); this.listBox1.TabIndex = 1; // // txt_msg // this.txt_msg.Location = new System.Drawing.Point(21, 255); this.txt_msg.Multiline = true; this.txt_msg.Name = "txt_msg"; this.txt_msg.Size = new System.Drawing.Size(424, 73); this.txt_msg.TabIndex = 2; // // bt_send // this.bt_send.Location = new System.Drawing.Point(471, 266); this.bt_send.Name = "bt_send"; this.bt_send.Size = new System.Drawing.Size(119, 52); this.bt_send.TabIndex = 3; this.bt_send.Text = "发送"; this.bt_send.UseVisualStyleBackColor = true; this.bt_send.Click += new System.EventHandler(this.bt_send_Click); // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(695, 340); this.Controls.Add(this.bt_send); this.Controls.Add(this.txt_msg); this.Controls.Add(this.listBox1); this.Controls.Add(this.panel1); this.Name = "Form1"; this.Text = "SocketForm"; this.Load += new System.EventHandler(this.Form1_Load); this.panel1.ResumeLayout(false); this.panel1.PerformLayout(); this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.Panel panel1; private System.Windows.Forms.Button bt_connnect; private System.Windows.Forms.Label lb_port; private System.Windows.Forms.TextBox tb_port; private System.Windows.Forms.Label lb_Ip; private System.Windows.Forms.TextBox tb_ip; private System.Windows.Forms.ListBox listBox1; private System.Windows.Forms.TextBox txt_msg; private System.Windows.Forms.Button bt_send; } }
控件事件逻辑处理 (小白可以随便选中一个控件双击进去, 直接将下面的代码覆盖到项目中)
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms; namespace Mywindows { partial class Form1 : Form { public Form1() { InitializeComponent(); } private void bt_connnect_Click(object sender, EventArgs e) { try { //点击开始监听时 在服务端创建一个负责监听IP和端口号的Socket Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress ip = IPAddress.Any; //创建对象端口 IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(tb_port.Text)); socketWatch.Bind(point);//绑定端口号 ShowMsg("监听成功!"); socketWatch.Listen(10);//设置监听 //创建监听线程 Thread thread = new Thread(Listen); thread.IsBackground = true; thread.Start(socketWatch); } catch { } } /// <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) { try { Socket socketWatch = o as Socket; while (true) { socketSend = socketWatch.Accept();//等待接收客户端连接 ShowMsg(socketSend.RemoteEndPoint.ToString() + ":" + "连接成功!"); //开启一个新线程，执行接收消息方法 Thread r_thread = new Thread(Received); r_thread.IsBackground = true; r_thread.Start(socketSend); } } catch { } } /// <summary> /// 服务器端不停的接收客户端发来的消息 /// </summary> /// <param name="o"></param> void Received(object o) { try { Socket socketSend = o as Socket; while (true) { //客户端连接服务器成功后，服务器接收客户端发送的消息 byte[] buffer = new byte[1024 * 1024 * 3]; //实际接收到的有效字节数 int len = socketSend.Receive(buffer); if (len == 0) { break; } string str = Encoding.UTF8.GetString(buffer, 0, len); ShowMsg(socketSend.RemoteEndPoint + ":" + str); } } catch { } } /// <summary> /// 服务器向客户端发送消息 /// </summary> /// <param name="str"></param> void Send(string str) { byte[] buffer = Encoding.UTF8.GetBytes(str); socketSend.Send(buffer); } void ShowMsg(string msg) { listBox1.Items.Add(msg + "\r\n"); } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } private void bt_send_Click(object sender, EventArgs e) { Send(txt_msg.Text.Trim()); } } }
客户端
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namespace MyClient { partial class Form1 { /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// 清理所有正在使用的资源。 /// </summary> /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows 窗体设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要修改 /// 使用代码编辑器修改此方法的内容。 /// </summary> private void InitializeComponent() { this.panel1 = new System.Windows.Forms.Panel(); this.lb_ip = new System.Windows.Forms.Label(); this.txt_ip = new System.Windows.Forms.TextBox(); this.txt_port = new System.Windows.Forms.TextBox(); this.lb_port = new System.Windows.Forms.Label(); this.bt_connect = new System.Windows.Forms.Button(); this.textBox1 = new System.Windows.Forms.TextBox(); this.txt_msg = new System.Windows.Forms.TextBox(); this.bt_send = new System.Windows.Forms.Button(); this.panel1.SuspendLayout(); this.SuspendLayout(); // // panel1 // this.panel1.Controls.Add(this.bt_connect); this.panel1.Controls.Add(this.txt_port); this.panel1.Controls.Add(this.lb_port); this.panel1.Controls.Add(this.txt_ip); this.panel1.Controls.Add(this.lb_ip); this.panel1.Location = new System.Drawing.Point(12, 12); this.panel1.Name = "panel1"; this.panel1.Size = new System.Drawing.Size(463, 75); this.panel1.TabIndex = 0; // // lb_ip // this.lb_ip.AutoSize = true; this.lb_ip.Location = new System.Drawing.Point(14, 23); this.lb_ip.Name = "lb_ip"; this.lb_ip.Size = new System.Drawing.Size(23, 12); this.lb_ip.TabIndex = 0; this.lb_ip.Text = "IP:"; // // txt_ip // this.txt_ip.Location = new System.Drawing.Point(43, 20); this.txt_ip.Name = "txt_ip"; this.txt_ip.Size = new System.Drawing.Size(100, 21); this.txt_ip.TabIndex = 1; this.txt_ip.Text = "127.0.0.1"; // // txt_port // this.txt_port.Location = new System.Drawing.Point(207, 23); this.txt_port.Name = "txt_port"; this.txt_port.Size = new System.Drawing.Size(100, 21); this.txt_port.TabIndex = 3; this.txt_port.Text = "2001"; // // lb_port // this.lb_port.AutoSize = true; this.lb_port.Location = new System.Drawing.Point(166, 29); this.lb_port.Name = "lb_port"; this.lb_port.Size = new System.Drawing.Size(35, 12); this.lb_port.TabIndex = 2; this.lb_port.Text = "port:"; // // bt_connect // this.bt_connect.Location = new System.Drawing.Point(313, 9); this.bt_connect.Name = "bt_connect"; this.bt_connect.Size = new System.Drawing.Size(113, 47); this.bt_connect.TabIndex = 4; this.bt_connect.Text = "连接"; this.bt_connect.UseVisualStyleBackColor = true; this.bt_connect.Click += new System.EventHandler(this.bt_connect_Click); // // textBox1 // this.textBox1.Location = new System.Drawing.Point(12, 103); this.textBox1.Multiline = true; this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(463, 114); this.textBox1.TabIndex = 1; // // txt_msg // this.txt_msg.Location = new System.Drawing.Point(12, 246); this.txt_msg.Multiline = true; this.txt_msg.Name = "txt_msg"; this.txt_msg.Size = new System.Drawing.Size(291, 54); this.txt_msg.TabIndex = 2; // // bt_send // this.bt_send.Location = new System.Drawing.Point(325, 246); this.bt_send.Name = "bt_send"; this.bt_send.Size = new System.Drawing.Size(113, 54); this.bt_send.TabIndex = 3; this.bt_send.Text = "发送"; this.bt_send.UseVisualStyleBackColor = true; this.bt_send.Click += new System.EventHandler(this.bt_send_Click); // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(493, 323); this.Controls.Add(this.bt_send); this.Controls.Add(this.txt_msg); this.Controls.Add(this.textBox1); this.Controls.Add(this.panel1); this.Name = "Form1"; this.Text = "Form1"; this.Load += new System.EventHandler(this.Form1_Load); this.panel1.ResumeLayout(false); this.panel1.PerformLayout(); this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.Panel panel1; private System.Windows.Forms.Label lb_ip; private System.Windows.Forms.Button bt_connect; private System.Windows.Forms.TextBox txt_port; private System.Windows.Forms.Label lb_port; private System.Windows.Forms.TextBox txt_ip; private System.Windows.Forms.TextBox textBox1; private System.Windows.Forms.TextBox txt_msg; private System.Windows.Forms.Button bt_send; } }
双击控件进入（.cs文件）
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using System.Windows.Forms; namespace MyClient { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Socket socketSend; private void bt_connect_Click(object sender, EventArgs e) { try { //创建客户端Socket，获得远程ip和端口号 socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress ip = IPAddress.Parse(txt_ip.Text); IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txt_port.Text)); socketSend.Connect(point); ShowMsg("连接成功!"); //开启新的线程，不停的接收服务器发来的消息 Thread c_thread = new Thread(Received); c_thread.IsBackground = true; c_thread.Start(); } catch (Exception){ ShowMsg("IP或者端口号错误..."); } } void ShowMsg(string str) { textBox1.AppendText(str + "\r\n"); } /// <summary> /// 接收服务端返回的消息 /// </summary> void Received() { while (true) { try { byte[] buffer = new byte[1024 * 1024 * 3]; //实际接收到的有效字节数 int len = socketSend.Receive(buffer); if (len == 0) { break; } string str = Encoding.UTF8.GetString(buffer, 0, len); ShowMsg(socketSend.RemoteEndPoint + ":" + str); } catch { } } } /// <summary> /// 向服务器发送消息 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void bt_send_Click(object sender, EventArgs e) { try { string msg = txt_msg.Text.Trim(); byte[] buffer = new byte[1024 * 1024 * 3]; buffer = Encoding.UTF8.GetBytes(msg); socketSend.Send(buffer); } catch { } } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } } }
项目地址
链接：https://pan.baidu.com/s/19UJ7T3LC5Y7TatOnaJXLkQ
提取码：g811
