基于SunnyUI的WinForm TCP服务器实现

一、项目概述

本期末作业实现了一个基于SunnyUI界面的TCP服务器应用程序，主要功能包括：

启动TCP服务器监听指定端口
接收多个客户端连接
显示客户端发送的消息
向所有连接的客户端广播消息

该项目展示了WinForm应用程序开发、TCP网络编程、多线程处理以及SunnyUI界面库的应用。

二、项目界面设计

项目使用了SunnyUI控件库构建了美观的界面：

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界面主要包含以下元素：

接收数据文本框：显示来自客户端的消息
发送数据文本框：输入要发送给客户端的消息
"启动服务器"按钮：开始监听客户端连接
"发送数据"按钮：向所有客户端广播消息

三、关键代码解析

1. 服务器启动逻辑

private void uibuttonStartServer_Click_1(object sender, EventArgs e)
{
try
{
// 创建TCP监听器，监听IP和端口
tcpListener = new TcpListener(IPAddress.Parse("192.168.209.171"), 6666);
tcpListener.Start();
UIMessageBox.Show("启动服务器成功");

// 在新任务中处理客户端连接
new Task(() =>
{
while (true)
{
// 接受客户端连接
TcpClient client = tcpListener.AcceptTcpClient();
// 获取客户端IP
IPEndPoint iPEndPoint = (IPEndPoint)(client.Client.RemoteEndPoint);
String ip = iPEndPoint.Address.ToString();
// 将客户端添加到字典
clients.Add(ip, client);

// 启动新任务处理客户端消息
new Task(() =>
{
NetworkStream stream = client.GetStream();
byte[] data = new byte[1024];
while (true)
{
// 读取客户端发送的数据
int count = stream.Read(data, 0, 1024);
String message = Encoding.Default.GetString(data, 0, count) + "\\r\\n";

// 使用Invoke更新UI
this.Invoke(new Action(() =>
{
this.uitextBoxReceive.Text += message;
}));
}
}).Start();
}
}).Start();
}
catch (Exception e2)
{
UIMessageBox.Show("启动服务器失败：" + e2.Message);
}
}

2. 消息发送功能

private void uibuttonSend_Click(object sender, EventArgs e)
{
// 遍历所有连接的客户端
foreach (var client in this.clients.Values)
{
NetworkStream stream = client.GetStream();
String sendString = this.uitextBoxSend.Text;
// 将文本转换为字节数组
byte[] data = Encoding.Default.GetBytes(sendString);
// 发送数据
stream.Write(data, 0, data.Length);
}
}

3. 客户端管理

// 存储客户端连接的字典
private Dictionary<String, TcpClient> clients;

public FormServer()
{
InitializeComponent();
// 初始化客户端字典
clients = new Dictionary<string, TcpClient>();
}

四、项目亮点

多线程处理：使用Task实现异步处理客户端连接和消息接收

线程安全：使用Invoke方法安全更新UI组件

客户端管理：使用字典存储客户端连接，便于管理

优雅的UI：采用SunnyUI控件库，界面美观现代

健壮性：异常处理确保服务器稳定运行

五、使用说明

编译并运行服务器程序

点击"启动服务器"按钮

使用TCP客户端工具（如NetAssist）连接服务器

在接收框中查看客户端发送的消息

在发送框中输入消息，点击"发送数据"广播给所有客户端

六、总结

本期末作业实现了一个功能完整的TCP服务器，涵盖了WinForm开发、网络编程、多线程处理等关键技术点。通过使用SunnyUI控件库，界面简洁美观且功能完善。项目展示了良好的编程实践，包括异常处理、资源管理和线程安全。

在实际应用中，可以进一步扩展以下功能：

添加客户端列表显示
实现私聊功能
增加消息加密
添加用户认证机制
实现消息历史记录

#mermaid-svg-aJQiRexBQBShYVhe {font-family:\”trebuchet ms\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-aJQiRexBQBShYVhe .error-icon{fill:#552222;}#mermaid-svg-aJQiRexBQBShYVhe .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-aJQiRexBQBShYVhe .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-aJQiRexBQBShYVhe .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-aJQiRexBQBShYVhe .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-aJQiRexBQBShYVhe .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-aJQiRexBQBShYVhe .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-aJQiRexBQBShYVhe .marker{fill:#333333;stroke:#333333;}#mermaid-svg-aJQiRexBQBShYVhe .marker.cross{stroke:#333333;}#mermaid-svg-aJQiRexBQBShYVhe svg{font-family:\”trebuchet ms\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-aJQiRexBQBShYVhe .label{font-family:\”trebuchet ms\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-aJQiRexBQBShYVhe .cluster-label text{fill:#333;}#mermaid-svg-aJQiRexBQBShYVhe .cluster-label span{color:#333;}#mermaid-svg-aJQiRexBQBShYVhe .label text,#mermaid-svg-aJQiRexBQBShYVhe span{fill:#333;color:#333;}#mermaid-svg-aJQiRexBQBShYVhe .node rect,#mermaid-svg-aJQiRexBQBShYVhe .node circle,#mermaid-svg-aJQiRexBQBShYVhe .node ellipse,#mermaid-svg-aJQiRexBQBShYVhe .node polygon,#mermaid-svg-aJQiRexBQBShYVhe .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-aJQiRexBQBShYVhe .node .label{text-align:center;}#mermaid-svg-aJQiRexBQBShYVhe .node.clickable{cursor:pointer;}#mermaid-svg-aJQiRexBQBShYVhe .arrowheadPath{fill:#333333;}#mermaid-svg-aJQiRexBQBShYVhe .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-aJQiRexBQBShYVhe .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-aJQiRexBQBShYVhe .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-aJQiRexBQBShYVhe .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-aJQiRexBQBShYVhe .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-aJQiRexBQBShYVhe .cluster text{fill:#333;}#mermaid-svg-aJQiRexBQBShYVhe .cluster span{color:#333;}#mermaid-svg-aJQiRexBQBShYVhe div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\”trebuchet ms\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-aJQiRexBQBShYVhe :root{–mermaid-font-family:\”trebuchet ms\”,verdana,arial,sans-serif;}

启动服务器

监听端口6666

接受客户端连接

存储客户端信息

接收客户端消息

显示在接收框

发送消息

遍历所有客户端

发送消息

七、完整代码

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsTcpServer
{
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new FormServer());
}
}
}

FormServer.cs

using Sunny.UI;
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 WindowsFormsTcpServer
{
public partial class FormServer : UIForm
{
private TcpListener tcpListener;
private Dictionary<String, TcpClient> clients;

public FormServer()
{
InitializeComponent();
clients = new Dictionary<string, TcpClient>();
}

private void FormServer_Load(object sender, EventArgs e)
{
// 初始化代码
}

private void uibuttonSend_Click(object sender, EventArgs e)
{
foreach (var client in this.clients.Values)
{
NetworkStream stream = client.GetStream();
String sendSring = this.uitextBoxSend.Text;
byte[] data = Encoding.Default.GetBytes(sendSring);
stream.Write(data, 0, data.Length);
}
}

private void uibuttonStartServer_Click_1(object sender, EventArgs e)
{
try
{
tcpListener = new TcpListener(IPAddress.Parse("192.168.209.171"), 6666);
tcpListener.Start();
UIMessageBox.Show("启动服务器成功");

}
catch (Exception e2)
{
UIMessageBox.Show("启动服务器失败：" + e2.Message);
return;
}

new Task(
() =>
{
while (true)
{
TcpClient client = tcpListener.AcceptTcpClient();
IPEndPoint iPEndPoint = (IPEndPoint)(client.Client.RemoteEndPoint);
String ip = iPEndPoint.Address.ToString();
clients.Add(ip, client);
Thread.Sleep(1000);

new Task(
() =>
{
NetworkStream stream = client.GetStream();
byte[] data = new byte[1024];
while (true)
{
int count = stream.Read(data, 0, 1024);
String message = Encoding.Default.GetString(data, 0, count) + "\\r\\n";
this.Invoke(new Action(() =>
{
this.uitextBoxReceive.Text += message;
}));
}
}).Start();
}
}).Start();
}
}
}

FormServer.Designer.cs

namespace WindowsFormsTcpServer
{
partial class FormServer
{
/// <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.uiSmoothLabel2 = new Sunny.UI.UISmoothLabel();
this.uiSmoothLabel1 = new Sunny.UI.UISmoothLabel();
this.uitextBoxSend = new Sunny.UI.UITextBox();
this.uibuttonStartServer = new Sunny.UI.UIHeaderButton();
this.uibuttonSend = new Sunny.UI.UIHeaderButton();
this.uitextBoxReceive = new Sunny.UI.UITextBox();
this.SuspendLayout();
//
// uiSmoothLabel2
//
this.uiSmoothLabel2.Font = new System.Drawing.Font("华文楷体", 16.2F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uiSmoothLabel2.ForeColor = System.Drawing.Color.Transparent;
this.uiSmoothLabel2.Location = new System.Drawing.Point(127, 54);
this.uiSmoothLabel2.Name = "uiSmoothLabel2";
this.uiSmoothLabel2.Size = new System.Drawing.Size(175, 30);
this.uiSmoothLabel2.TabIndex = 55;
this.uiSmoothLabel2.Text = "接收到的数据";
//
// uiSmoothLabel1
//
this.uiSmoothLabel1.Font = new System.Drawing.Font("华文楷体", 16.2F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uiSmoothLabel1.ForeColor = System.Drawing.Color.Transparent;
this.uiSmoothLabel1.Location = new System.Drawing.Point(126, 330);
this.uiSmoothLabel1.Name = "uiSmoothLabel1";
this.uiSmoothLabel1.Size = new System.Drawing.Size(175, 30);
this.uiSmoothLabel1.TabIndex = 56;
this.uiSmoothLabel1.Text = "要发送的数据";
//
// uitextBoxSend
//
this.uitextBoxSend.ButtonWidth = 100;
this.uitextBoxSend.Cursor = System.Windows.Forms.Cursors.IBeam;
this.uitextBoxSend.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uitextBoxSend.Location = new System.Drawing.Point(132, 365);
this.uitextBoxSend.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
this.uitextBoxSend.MinimumSize = new System.Drawing.Size(1, 1);
this.uitextBoxSend.Multiline = true;
this.uitextBoxSend.Name = "uitextBoxSend";
this.uitextBoxSend.Padding = new System.Windows.Forms.Padding(5);
this.uitextBoxSend.ShowScrollBar = true;
this.uitextBoxSend.ShowText = false;
this.uitextBoxSend.Size = new System.Drawing.Size(308, 236);
this.uitextBoxSend.TabIndex = 57;
this.uitextBoxSend.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
this.uitextBoxSend.Watermark = "";
//
// uibuttonStartServer
//
this.uibuttonStartServer.CircleColor = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(192)))), ((int)(((byte)(0))));
this.uibuttonStartServer.Cursor = System.Windows.Forms.Cursors.Hand;
this.uibuttonStartServer.Font = new System.Drawing.Font("宋体", 12F);
this.uibuttonStartServer.Location = new System.Drawing.Point(544, 138);
this.uibuttonStartServer.MinimumSize = new System.Drawing.Size(1, 1);
this.uibuttonStartServer.Name = "uibuttonStartServer";
this.uibuttonStartServer.Padding = new System.Windows.Forms.Padding(6);
this.uibuttonStartServer.Radius = 0;
this.uibuttonStartServer.RadiusSides = Sunny.UI.UICornerRadiusSides.None;
this.uibuttonStartServer.RectSides = System.Windows.Forms.ToolStripStatusLabelBorderSides.None;
this.uibuttonStartServer.Size = new System.Drawing.Size(100, 88);
this.uibuttonStartServer.Symbol = 62074;
this.uibuttonStartServer.SymbolSize = 44;
this.uibuttonStartServer.TabIndex = 27;
this.uibuttonStartServer.Text = "启动服务器";
this.uibuttonStartServer.TextImageRelation = System.Windows.Forms.TextImageRelation.TextAboveImage;
this.uibuttonStartServer.TipsFont = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uibuttonStartServer.Click += new System.EventHandler(this.uibuttonStartServer_Click_1);
//
// uibuttonSend
//
this.uibuttonSend.CircleColor = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(192)))), ((int)(((byte)(0))));
this.uibuttonSend.Cursor = System.Windows.Forms.Cursors.Hand;
this.uibuttonSend.Font = new System.Drawing.Font("宋体", 12F);
this.uibuttonSend.Location = new System.Drawing.Point(544, 463);
this.uibuttonSend.MinimumSize = new System.Drawing.Size(1, 1);
this.uibuttonSend.Name = "uibuttonSend";
this.uibuttonSend.Padding = new System.Windows.Forms.Padding(0, 8, 0, 3);
this.uibuttonSend.Radius = 0;
this.uibuttonSend.RadiusSides = Sunny.UI.UICornerRadiusSides.None;
this.uibuttonSend.RectSides = System.Windows.Forms.ToolStripStatusLabelBorderSides.None;
this.uibuttonSend.Size = new System.Drawing.Size(100, 88);
this.uibuttonSend.Style = Sunny.UI.UIStyle.Custom;
this.uibuttonSend.Symbol = 62074;
this.uibuttonSend.SymbolSize = 44;
this.uibuttonSend.TabIndex = 59;
this.uibuttonSend.Text = "发送数据";
this.uibuttonSend.TipsFont = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uibuttonSend.Click += new System.EventHandler(this.uibuttonSend_Click);
//
// uitextBoxReceive
//
this.uitextBoxReceive.ButtonWidth = 100;
this.uitextBoxReceive.Cursor = System.Windows.Forms.Cursors.IBeam;
this.uitextBoxReceive.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.uitextBoxReceive.Location = new System.Drawing.Point(132, 89);
this.uitextBoxReceive.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
this.uitextBoxReceive.MinimumSize = new System.Drawing.Size(1, 1);
this.uitextBoxReceive.Multiline = true;
this.uitextBoxReceive.Name = "uitextBoxReceive";
this.uitextBoxReceive.Padding = new System.Windows.Forms.Padding(5);
this.uitextBoxReceive.ShowScrollBar = true;
this.uitextBoxReceive.ShowText = false;
this.uitextBoxReceive.Size = new System.Drawing.Size(308, 236);
this.uitextBoxReceive.TabIndex = 58;
this.uitextBoxReceive.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
this.uitextBoxReceive.Watermark = "";
//
// FormServer
//
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
this.ClientSize = new System.Drawing.Size(1044, 719);
this.Controls.Add(this.uitextBoxReceive);
this.Controls.Add(this.uibuttonSend);
this.Controls.Add(this.uibuttonStartServer);
this.Controls.Add(this.uitextBoxSend);
this.Controls.Add(this.uiSmoothLabel1);
this.Controls.Add(this.uiSmoothLabel2);
this.Name = "FormServer";
this.Text = "服务器";
this.ZoomScaleRect = new System.Drawing.Rectangle(19, 19, 1044, 719);
this.Load += new System.EventHandler(this.FormServer_Load);
this.ResumeLayout(false);

}

#endregion

private Sunny.UI.UISmoothLabel uiSmoothLabel2;
private Sunny.UI.UISmoothLabel uiSmoothLabel1;
private Sunny.UI.UITextBox uitextBoxSend;
private Sunny.UI.UIHeaderButton uibuttonStartServer;
private Sunny.UI.UIHeaderButton uibuttonSend;
private Sunny.UI.UITextBox uitextBoxReceive;
}
}

通过本次项目实践，我掌握了WinForm应用程序开发、TCP网络编程、多线程处理等关键技术，为今后的软件开发工作打下了坚实基础。

基于SunnyUI的WinForm TCP服务器实现