添加 chatserver 项目并更新相关配置

在 `chatclient.sln` 中添加 `chatserver` 项目，配置调试和发布设置。更新 `App.config` 中 `log4net` 的配置路径。修改 `TrayIconManager.cs` 中的分隔符样式引用。更新 `chatapi.cs` 中的服务器地址和相关数据结构，增加 `userid` 和 `token` 字段。优化 `LoginWindow.xaml` 和 `MainWindow.xaml.cs` 的布局和逻辑，确保用户 ID 正确处理。更新 `log4net.config` 日志格式，添加控制台输出。配置 `chatserver.csproj` 的依赖项，添加服务器基本逻辑和消息类型枚举。更新 `launchSettings.json` 启动配置。

chatclient.sln

@@ -1,10 +1,12 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.13.35931.197 d17.13
+VisualStudioVersion = 17.13.35931.197
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "chatclient", "chatclient\chatclient.csproj", "{6965B200-D0AA-4729-A5A4-30DFD307EB80}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "chatserver", "chatserver\chatserver.csproj", "{5AE823C9-2275-45F1-B312-0D1ED4237A2D}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{6965B200-D0AA-4729-A5A4-30DFD307EB80}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6965B200-D0AA-4729-A5A4-30DFD307EB80}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6965B200-D0AA-4729-A5A4-30DFD307EB80}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5AE823C9-2275-45F1-B312-0D1ED4237A2D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5AE823C9-2275-45F1-B312-0D1ED4237A2D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5AE823C9-2275-45F1-B312-0D1ED4237A2D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5AE823C9-2275-45F1-B312-0D1ED4237A2D}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

chatclient/App.config

@@ -3,5 +3,5 @@
 	<configSections>
 		<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
 	</configSections>
-	<log4net configSource="config/log4net.config" />
+	<log4net configSource="config\log4net.config" />
 </configuration>

chatclient/Data/TrayIconManager.cs

@@ -48,7 +48,7 @@ namespace chatclient.Data
             // 添加菜单项
             contextMenu.Items.Add(CreateMenuItem("打开程序", PackIconKind.WindowRestore, OpenApp_Click));
             contextMenu.Items.Add(CreateMenuItem("设置", PackIconKind.Cog, Settings_Click));
-            contextMenu.Items.Add(new Separator { Style = (Style)Application.Current.Resources["MaterialDesignLightSeparator"] });
+            contextMenu.Items.Add(new Separator { Style = (Style)Application.Current.Resources["Separator"] });
             //contextMenu.Items.Add(CreateMenuItem("Check for Updates", PackIconKind.Update, Updates_Click));
             //contextMenu.Items.Add(CreateMenuItem("Help", PackIconKind.HelpCircle, Help_Click));
             //contextMenu.Items.Add(new Separator { Style = (Style)Application.Current.Resources["MaterialDesignLightSeparator"] });

chatclient/Data/chatapi.cs

@@ -4,9 +4,9 @@ namespace chatclient.Data
 {
     internal class Server 
     {
-        public const string ServerUrl = "http://175.24.191.172:5001";
+        public const string ServerUrl = "http://127.0.0.1:5001";
-        public const string ServerIP = "175.24.191.172";
+        public const string ServerIP = "127.0.0.1";
-        public const int ServerPort = 8889;
+        public const int ServerPort = 52006;
     }
     internal class LoginData
     {
@@ -21,6 +21,7 @@ namespace chatclient.Data
         public string? message { get; set; }
         public string? token { get; set; }
         public string? username { get; set; }
+        public string? userid { get; set; } = "Unid";
     }
     internal class SignData
     {
@@ -30,7 +31,7 @@ namespace chatclient.Data
     }
     internal class SignResultData
     {
-        public bool success { get; set; } = false;
+        public string? status { get; set; } = null;
         public string? message { get; set; } = null;
     }
     internal class RegisterData
@@ -40,14 +41,19 @@ namespace chatclient.Data
     internal class ChatRegisterData
     {
         public string? user { get; set; } = "Unnamed";
+        public required string userid { get; set; } = "Unid";
         public string? status { get; set; } = null;
         public string? message { get; set; } = null;
-        public string? image { get; set; } = null;
+        public string? avatar { get; set; } = null;
-        public DateTime timestamp { get; set; } = DateTime.Now;
+        public MessageType? msgtype { get; set; } = MessageType.Text;
+        public DateTime? timestamp { get; set; } = DateTime.Now;
     }
     internal class ChatData
     {
         public required string type { get; set; } = "chat";
         public required string message { get; set; } = "message";
+        public MessageType? msgtype { get; set; } = MessageType.Text;
+        public required string userid { get; set; } = "Unid";
+        public string? token { get; set; } = null;  // 添加token字段
     }
 }

chatclient/LoginWindow.xaml

@@ -9,7 +9,6 @@
         mc:Ignorable="d"
         Title="LoginWindow" Height="540" Width="330" MinHeight="540" MinWidth="330" MaxHeight="540" MaxWidth="330" 
         ResizeMode="NoResize" Closing="Window_Closing" Loaded="Window_Loaded">
-
     <TabControl>
         <TabItem Header="登录账号" Cursor="Hand" Height="40">
             <Grid Background="#FFE5E5E5">

chatclient/LoginWindow.xaml.cs

@@ -108,14 +108,6 @@ namespace chatclient
                     if (Task.IsCompletedSuccessfully)
                     {
                         log.Info("注册请求发送成功");
-                        Application.Current.Dispatcher.Invoke(() =>
-                        {
-                            var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
-                            if (loginWindow != null)
-                            {
-                                loginWindow.SignMsg = "注册请求已发送，请等待服务器响应";
-                            }
-                        });
                     }
                     else
                     {
@@ -187,47 +179,47 @@ namespace chatclient
                 }
             });
         }
-        public static async Task HttpSignRegistryUser(string Username, string Userpassword)
+        //public static async Task HttpSignRegistryUser(string Username, string Userpassword)
-        {
+        //{
-            try
+        //    try
-            {
+        //    {
-                var SignData = new
+        //        var SignData = new
-                {
+        //        {
-                    type = "register",
+        //            type = "register",
-                    username = Username,
+        //            username = Username,
-                    password = Userpassword
+        //            password = Userpassword
-                };
+        //        };
-                string SignJsonData = JsonSerializer.Serialize(SignData);
+        //        string SignJsonData = JsonSerializer.Serialize(SignData);
-                byte[] dataBytes = Encoding.UTF8.GetBytes(SignJsonData);
+        //        byte[] dataBytes = Encoding.UTF8.GetBytes(SignJsonData);
-                var content = new StringContent(SignJsonData, Encoding.UTF8, "application/json");
+        //        var content = new StringContent(SignJsonData, Encoding.UTF8, "application/json");
-                var response = await MainWindow.HttpClient.PostAsync($"{Server.ServerUrl}/api/register", content);
+        //        var response = await MainWindow.HttpClient.PostAsync($"{Server.ServerUrl}/api/register", content);
-                var responseBody = await response.Content.ReadAsStringAsync();
+        //        var responseBody = await response.Content.ReadAsStringAsync();
-                log.Info($"注册请求已发送，响应内容: {responseBody}");
+        //        log.Info($"注册请求已发送，响应内容: {responseBody}");
-                var signresponse = JsonSerializer.Deserialize<SignResultData>(responseBody);
+        //        var signresponse = JsonSerializer.Deserialize<SignResultData>(responseBody);
-                if (signresponse!.success)
+        //        if (signresponse!.status)
-                {
+        //        {
-                    log.Info($"注册成功: {signresponse.message}");
+        //            log.Info($"注册成功: {signresponse.message}");
-                    await Login(true, Username, Userpassword);
+        //            await Login(true, Username, Userpassword);
-                }
+        //        }
-                else
+        //        else
-                {
+        //        {
-                    log.Error($"注册失败: {signresponse.message}");
+        //            log.Error($"注册失败: {signresponse.message}");
-                    Application.Current.Dispatcher.Invoke(() =>
+        //            Application.Current.Dispatcher.Invoke(() =>
-                    {
+        //            {
-                        var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+        //                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
-                        loginWindow!.SignMsg = signresponse.message;
+        //                loginWindow!.SignMsg = signresponse.message;
-                    });
+        //            });
-                }
+        //        }
-            }
+        //    }
-            catch (Exception ex)
+        //    catch (Exception ex)
-            {
+        //    {
-                log.Error("注册请求发送失败", ex);
+        //        log.Error("注册请求发送失败", ex);
-            }
+        //    }
-            finally
+        //    finally
-            {
+        //    {
-                log.Info("注册请求已完成");
+        //        log.Info("注册请求已完成");
-            }
+        //    }
-         }
+        // }
         public static async Task Login(bool Sign, string Username, string Userpassword)
         {
             // 公共的登录数据准备
@@ -341,7 +333,7 @@ namespace chatclient
                     log.Error("保存登录信息到临时文件失败", ex);
                 }
             }
-            if (MainWindow.token == null) Application.Current.Shutdown(); 
+            if (MainWindow.UserId == null) Application.Current.Shutdown(); 
         }
     }
 }

chatclient/MainWindow.xaml

@@ -138,10 +138,17 @@
                         <StackPanel Width="auto" Height="auto">
                             <materialDesign:PackIcon Width="24" Height="24" HorizontalAlignment="Center" Kind="Cog" />
                             <TextBlock HorizontalAlignment="Center" Text="设置" />
+                            
                         </StackPanel>
                     </TabItem.Header>
-                    <StackPanel>
+                    <StackPanel Margin="10">
-                        <TextBlock Text="这里没有东西..."/>
+                        <TextBlock Text="设置" FontSize="20" FontWeight="Bold" Margin="0,0,0,12"/>
+                        <Separator Margin="0 0" Width="auto" Height="10" HorizontalAlignment="Stretch" VerticalAlignment="Top"/>
+                        <TextBlock Text="关于" FontSize="20" FontWeight="Bold" Margin="0,0,0,12"/>
+                        <TextBlock Text="ChatClient 聊天室" FontSize="16" Margin="0,0,0,8"/>
+                        <TextBlock Text="版本 1.0.0" Margin="0,0,0,8"/>
+                        <TextBlock Text="作者：DZY &amp; 绪山七寻" Margin="0,0,0,8"/>
+                        <TextBlock Text="本项目基于 .NET 8 和 MaterialDesignInXAML。" TextWrapping="Wrap" Margin="0,0,0,8"/>
                     </StackPanel>
                 </TabItem>
             </TabControl>

chatclient/MainWindow.xaml.cs

@@ -35,6 +35,7 @@ namespace chatclient
         static string? receive;
         public static string UserName { get; set; } = "?";
         public static string? token = null;
+        public static string? UserId = null;
         private static readonly ILog log = LogManager.GetLogger(typeof(MainWindow));
         public static Socket? Client;
         public static readonly HttpClient HttpClient = new HttpClient();
@@ -133,12 +134,13 @@ namespace chatclient
                 var Type = JsonSerializer.Deserialize<RegisterData>(msg);
                 if (Type != null)
                 {
-                    if (Type.type == "login_1")
+                    if (Type.type == "login")
                     {
                         var LoginResponse = JsonSerializer.Deserialize<LoginResultData>(msg);
-                        if (LoginResponse!.status == "success" && LoginResponse != null)
+                        if (LoginResponse!.status == "succeed" && LoginResponse != null)
                         {
-                            token = LoginResponse.token;
+                            //token = LoginResponse.token;
+                            UserId = LoginResponse.userid ?? "Unid";
                             UserName = LoginResponse.username ?? "Unnamed";
                             Application.Current.Dispatcher.Invoke(() =>
                             {
@@ -155,7 +157,7 @@ namespace chatclient
                                         Sender = "System",
                                         MsgType = MessageType.System,
                                         Image = new BitmapImage(new Uri("pack://application:,,,/resource/user.png")),
-                                        Content = $"你好 {UserName} !",
+                                        Content = $"你好 {UserName} (id: {UserId} )!",
                                         Timestamp = DateTime.Now,
                                         Alignment = HorizontalAlignment.Center,
                                         SenderColor = new SolidColorBrush(Colors.Gray)
@@ -163,7 +165,31 @@ namespace chatclient
                                     mainWindow?.Messages.Add(chatmessage);
                                 }
                             });
-                            log.Info($"用户 {UserName} 登录成功(token:{token})");
+                            log.Info($"用户 {UserName} 登录成功(token:{token},userid:{UserId})");
+                        }
+                        else if (LoginResponse!.status == "error_0")
+                        {
+                            log.Warn($"登录失败: {LoginResponse!.message}\nMsg:{msg}");
+                            Application.Current.Dispatcher.Invoke(() =>
+                            {
+                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+                                if (loginWindow != null)
+                                {
+                                    loginWindow.LoginMsg = "用户名或密码错误";
+                                }
+                            });
+                        }
+                        else if (LoginResponse!.status == "error_2")
+                        {
+                            log.Warn($"登录失败: {LoginResponse!.message}\nMsg:{msg}");
+                            Application.Current.Dispatcher.Invoke(() =>
+                            {
+                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+                                if (loginWindow != null)
+                                {
+                                    loginWindow.LoginMsg = "用户名长度必须在2到20个字符之间";
+                                }
+                            });
                         }
                         else
                         {
@@ -177,33 +203,46 @@ namespace chatclient
                             });
                         }
                     }
-                    else if (Type.type == "login_0")
+                    else if (Type.type == "register")
                     {
-                        var LoginResponse = JsonSerializer.Deserialize<LoginResultData>(msg);
+                        var SignResponse = JsonSerializer.Deserialize<SignResultData>(msg);
-                        log.Warn($"登录失败: {LoginResponse!.message}\nMsg:{msg}");
+                        if (SignResponse!.status == "success")
+                        {
+                            log.Warn($"注册成功\nMsg:{msg}");
+                            Application.Current.Dispatcher.Invoke(async () =>
+                            {
+                                //var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+                                await LoginWindow.Login(true, LoginWindow.SignName, LoginWindow.SignPassword1);
+                            });
+                        }
+                        else if (SignResponse!.status == "error_1")
+                        {
+                            log.Warn($"注册失败: {SignResponse!.message}\nMsg:{msg}");
                             Application.Current.Dispatcher.Invoke(() =>
                             {
                                 var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
                                 if (loginWindow != null)
                                 {
-                                loginWindow.LoginMsg = "用户名或密码错误";
+                                    loginWindow.SignMsg = "密码长度必须在4到20个字符之间";
                                 }
                             });
                         }
-                    else if (Type.type == "register_1")
+                        else if (SignResponse!.status == "error_2")
                         {
-                        var SignResponse = JsonSerializer.Deserialize<SignResultData>(msg);
-                        log.Warn($"注册成功\nMsg:{msg}");
-                        Application.Current.Dispatcher.Invoke(async () =>
-                        {
-                            //var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
-                            await LoginWindow.Login(true,LoginWindow.SignName, LoginWindow.SignPassword1);
-                        });
-                    }
-                    else if (Type.type == "register_0")
-                    {
-                        var SignResponse = JsonSerializer.Deserialize<SignResultData>(msg);
                             log.Warn($"注册失败: {SignResponse!.message}\nMsg:{msg}");
+                            Application.Current.Dispatcher.Invoke(() =>
+                            {
+                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+                                if (loginWindow != null)
+                                {
+                                    loginWindow.SignMsg = "用户名长度必须在2到20个字符之间";
+                                }
+                            });
+                        }
+                        else if (SignResponse!.status == "error_3")
+                        {
+                            log.Warn($"注册失败: {SignResponse!.message}\nMsg:{msg}");
+                            {
                                 Application.Current.Dispatcher.Invoke(() =>
                                 {
                                     var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
@@ -213,6 +252,20 @@ namespace chatclient
                                     }
                                 });
                             }
+                        }
+                        else
+                        {
+                            log.Error($"注册失败: {SignResponse!.message}\nMsg:{msg}");
+                            Application.Current.Dispatcher.Invoke(() =>
+                            {
+                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
+                                if (loginWindow != null)
+                                {
+                                    loginWindow.SignMsg = SignResponse != null ? SignResponse.message : "服务器返回错误";
+                                }
+                            });
+                        }
+                    }
                     else if (Type.type == "chat")
                     {
                         var chat = JsonSerializer.Deserialize<ChatRegisterData>(msg);
@@ -221,15 +274,15 @@ namespace chatclient
                             Application.Current.Dispatcher.Invoke(() =>
                             {
                                 // 处理聊天消息
-                                if (chat.user == UserName)
+                                if (chat.userid == UserId)
                                 {
                                     var chatmessage = new ChatMessage
                                     {
                                         Sender = chat.user ?? "未知用户",
                                         MsgType = MessageType.Text,
-                                        Image = new BitmapImage(new Uri(chat.image ?? "pack://application:,,,/resource/user.png", UriKind.Absolute)),
+                                        Image = new BitmapImage(new Uri(chat.avatar ?? "pack://application:,,,/resource/user.png")),
                                         Content = chat.message ?? "(无内容)",
-                                        Timestamp = DateTime.Now,
+                                        Timestamp = chat.timestamp ?? DateTime.Now,
                                         Alignment = HorizontalAlignment.Right,
                                         SenderColor = new SolidColorBrush(Colors.Blue)
                                     };
@@ -242,9 +295,9 @@ namespace chatclient
                                     {
                                         Sender = chat.user ?? "未知用户",
                                         MsgType = MessageType.Text,
-                                        Image = new BitmapImage(new Uri(chat.image ?? "pack://application:,,,/resource/user.png", UriKind.Absolute)),
+                                        Image = new BitmapImage(new Uri(chat.avatar ?? "pack://application:,,,/resource/user.png")),
                                         Content = chat.message ?? "(无内容)",
-                                        Timestamp = chat.timestamp,
+                                        Timestamp = chat.timestamp ?? DateTime.Now,
                                         Alignment = HorizontalAlignment.Left,
                                         SenderColor = new SolidColorBrush(Colors.Black)
                                     };
@@ -258,6 +311,7 @@ namespace chatclient
                             log.Error("反序列化聊天数据时返回了 null");
                         }
                     }
+                    else if (Type.type == "ping") { }
                     else
                     {
                         log.Error($"未知的消息类型: {Type.type}，请检查服务器响应格式");
@@ -307,7 +361,10 @@ namespace chatclient
             var newChatMessage = new ChatData
             {
                 type = "chat",
-                message = txtMessage.Text
+                message = txtMessage.Text,
+                msgtype = MessageType.Text,
+                userid = UserId ?? "Unid",  // 使用UserId作为发送者ID
+                token = token  // 添加当前token
             };
             string ChatJsonData = JsonSerializer.Serialize(newChatMessage);
             byte[] dataBytes = Encoding.UTF8.GetBytes(ChatJsonData);
@@ -372,7 +429,7 @@ namespace chatclient
         {
             log.Info("MainWindow 关闭事件触发，清理资源");
             // 清理资源
-            Client?.Shutdown(SocketShutdown.Both);
+            if (Client!.Connected) Client?.Shutdown(SocketShutdown.Both);
             Client?.Close();
             log.Info("关闭Socket连接");
             Client?.Dispose();

chatclient/config/log4net.config

@@ -10,7 +10,7 @@
       <staticLogFileName value="false" />
       <param name="MaxSizeRollBackups" value="100" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="[%date %thread %logger %-5level]%ndc - %message%newline" />
+        <conversionPattern value="[%date %thread %logger %-5level] - %message%newline" />
       </layout>
     </appender>
     <root>

chatserver/App.config

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+	<configSections>
+		<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
+	</configSections>
+	<log4net configSource="config\log4net.config" />
+</configuration>

chatserver/Data/ChatData.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace chatserver.Data
+{
+    public enum MessageType
+    {
+        Text,
+        Image,//图片
+        File,//文件
+        System//系统信息
+    }
+}

chatserver/Data/chatapi.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace chatserver.Data
+{
+    internal class LoginData
+    {
+        public string? username { get; set; } = null;
+        public string? password { get; set; } = null;
+        public string? token { get; set; } = null;
+    }
+    internal class LoginResultData
+    {
+        public required string type { get; set; } = "login";
+        public string? userid { get; set; } = "Unid";
+        public string? status { get; set; }
+        public string? message { get; set; }
+        public string? token { get; set; }
+        public string? username { get; set; }
+    }
+    internal class SignData
+    {
+        public string? username { get; set; } = null;
+        public string? password { get; set; } = null;
+    }
+    internal class SignResultData
+    {
+        public required string type { get; set; } = "sign";
+        public string? status { get; set; } = null;
+        public string? message { get; set; } = null;
+    }
+    internal class TypeData
+    {
+        public string? type { get; set; }
+    }
+    internal class ChatRegisterData
+    {
+        public required string type { get; set; } = "chat";
+        public required string userid { get; set; } = "Unid";
+        public string user { get; set; } = "Unnamed";
+        public string? status { get; set; } = null;
+        public string? message { get; set; } = null;
+        public string? avatar { get; set; } = null;
+        public MessageType? msgtype { get; set; } = MessageType.Text;
+        public DateTime? timestamp { get; set; } = DateTime.Now;
+    }
+    internal class ChatData
+    {
+        public required string message { get; set; } = "message";
+        public MessageType? msgtype { get; set; } = MessageType.Text;
+        public required string userid { get; set; } = "Unid";
+        public string? token { get; set; } = null;  // 添加token字段
+    }
+}

chatserver/Program.cs

@@ -0,0 +1,264 @@
+using System.Net.Sockets;
+using System.Net.Http;
+using log4net;
+using log4net.Config;
+using System.Net;
+using System.Data.SQLite;
+using chatserver.Data;
+using System.Text.Json;
+using System.Reflection;
+
+[assembly: XmlConfigurator(ConfigFile = "config/log4net.config", Watch = true)]
+namespace chatserver
+{
+    internal class ChatServer
+    {
+        private static readonly ILog log = LogManager.GetLogger(typeof(ChatServer));
+        private static List<Socket> Client = new();
+        private static List<string> token = new();
+        private static Socket? Server;
+        private static SQLiteConnection? User_db;
+
+        static void Main(string[] args)
+        {
+            //XmlConfigurator.Configure();
+            log.Info("Hello World!");
+            Server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+            Server.Bind(new IPEndPoint(IPAddress.Any, 52006));
+            Server.Listen(20);
+            OpenUser_db();
+            log.Info("服务器以在52006端口监听");
+            while (true)
+            {
+                try
+                {
+                    Socket client = Server.Accept();
+                    Client.Add(client);
+                    log.Info($"用户{client.RemoteEndPoint}连接");
+                    Thread thread = new Thread(() => HandleClient(client));
+                    thread.Start();
+                }
+                catch (Exception ex)
+                {
+                    log.Error("Error accepting client connection: " + ex.Message);
+                }
+            }
+        }
+        public static void OpenUser_db()
+        {
+            log.Info("正在打开数据库连接...");
+            User_db = new SQLiteConnection("Data Source=ServerUser.db;Version=3;"); //没有数据库则自动创建  
+            User_db.Open();
+            EnsureUsersTableExists(); // 确保users表存在
+            log.Info("数据库连接已打开");
+        }
+        static void HandleClient(Socket socket)
+        {
+            try
+            {
+                while (true)
+                
+                {
+                    byte[] buffer = new byte[1024];
+                    int received = socket.Receive(buffer);
+                    if (received == 0) break; // 客户端断开连接  
+                    string message = System.Text.Encoding.UTF8.GetString(buffer, 0, received);
+                    log.Info("Received message: " + message);
+                    var Type = JsonSerializer.Deserialize<TypeData>(message);
+                    if (Type != null)
+                    {
+                        if (Type.type == "register")
+                        {
+                            var sginuser = JsonSerializer.Deserialize<SignData>(message);
+                            if (sginuser != null && sginuser.username != null && sginuser.password != null)
+                            {
+                                log.Info($"用户 {sginuser.username} 正在注册");
+                                if (string.IsNullOrEmpty(sginuser.username) || string.IsNullOrEmpty(sginuser.password))
+                                {
+                                    log.Warn("用户名或密码不能为空");
+                                    var emptyResult = new SignResultData { type = "register", status = "error_-1", message = "用户名或密码不能为空" };
+                                    socket.Send(JsonSerializer.SerializeToUtf8Bytes(emptyResult));
+                                    continue; // 如果用户名或密码为空，则跳过注册流程
+                                }
+                                if (sginuser.username.Length < 2 || sginuser.username.Length > 20)
+                                {
+                                    log.Warn($"用户注册时 {sginuser.username} 用户名长度不符合要求");
+                                    var lengthResult = new SignResultData { type = "register", status = "error_2", message = "用户名长度必须在2到20个字符之间" };
+                                    socket.Send(JsonSerializer.SerializeToUtf8Bytes(lengthResult));
+                                    continue; // 如果用户名长度不符合要求，则跳过注册流程
+                                }
+                                if (sginuser.password.Length < 4 || sginuser.password.Length > 20)
+                                {
+                                    log.Warn($"用户注册时 {sginuser.username} 密码长度不符合要求");
+                                    var weakPwdResult = new SignResultData { type = "register", status = "error_1", message = "密码长度必须在4到20个字符之间" };
+                                    socket.Send(JsonSerializer.SerializeToUtf8Bytes(weakPwdResult));
+                                    continue; // 如果密码过弱，则跳过注册流程
+                                }
+                                if (UserExists(sginuser.username))
+                                {
+                                    log.Warn($"用户 {sginuser.username} 已存在");
+                                    var Result = new SignResultData { type = "register", status = "error_0", message = "用户名已存在" };
+                                    socket.Send(System.Text.Encoding.UTF8.GetBytes(JsonSerializer.Serialize(Result)));
+                                    continue;// 如果用户名已存在，则跳过注册流程
+                                }
+                                var cmd = new SQLiteCommand("INSERT INTO users (userid, username, password) VALUES (@userid, @username, @password)", User_db);
+                                var timedUlid = Ulid.NewUlid(DateTimeOffset.UtcNow);
+                                cmd.Parameters.AddWithValue("@userid", timedUlid);
+                                cmd.Parameters.AddWithValue("@username", sginuser.username);
+                                cmd.Parameters.AddWithValue("@password", sginuser.password);
+                                cmd.ExecuteNonQuery();
+                                log.Info($"用户 {sginuser.username} 注册成功(id:{timedUlid})");
+                                var result = new SignResultData { type = "register", status = "succeed", message = "注册成功" };
+                                socket.Send(System.Text.Encoding.UTF8.GetBytes(JsonSerializer.Serialize(result)));
+                            }
+                        }
+                        else if (Type.type == "login")
+                        {
+                            var loginData = JsonSerializer.Deserialize<LoginData>(message);
+                            if (loginData != null)
+                            {
+                                if (string.IsNullOrEmpty(loginData.username) || string.IsNullOrEmpty(loginData.password))
+                                {
+                                    log.Warn("用户名或密码不能为空");
+                                    var emptyResult = new LoginResultData { type = "login", status = "error_-1", message = "用户名或密码不能为空" };
+                                    socket.Send(JsonSerializer.SerializeToUtf8Bytes(emptyResult));
+                                    continue; // 如果用户名或密码为空，则跳过登录流程
+                                }
+                                if (loginData.username.Length < 2 || loginData.username.Length > 20)
+                                {
+                                    log.Warn($"用户登录时 {loginData.username} 用户名长度不符合要求");
+                                    var lengthResult = new LoginResultData { type = "login", status = "error_2", message = "用户名长度必须在2到20个字符之间" };
+                                    socket.Send(JsonSerializer.SerializeToUtf8Bytes(lengthResult));
+                                    continue; // 如果用户名长度不符合要求，则跳过登录流程
+                                }
+                                var Authentication = UserAuthentication(loginData.username, loginData.password);
+                                if (Authentication != "")
+                                {
+                                    log.Info($"用户 {loginData.username} 登录成功 (id:{Authentication})");
+                                    var result = new LoginResultData
+                                    {
+                                        type = "login",
+                                        status = "succeed",
+                                        message = "登录成功",
+                                        //token = Authentication,
+                                        username = loginData.username,
+                                        userid = Authentication
+                                    };
+                                    socket.Send(System.Text.Encoding.UTF8.GetBytes(JsonSerializer.Serialize(result)));
+                                }
+                                else
+                                {
+                                    log.Warn($"用户 {loginData.username} 登录失败，用户名或密码错误");
+                                    var result = new LoginResultData { type = "login", status = "error_0", message = "用户名或密码错误" };
+                                    socket.Send(System.Text.Encoding.UTF8.GetBytes(JsonSerializer.Serialize(result)));
+                                }
+                            }
+                        }
+                        else if (Type.type == "chat")
+                        {
+                            var chatData = JsonSerializer.Deserialize<ChatData>(message);
+                            if (chatData != null && chatData.message != null)
+                            {
+                                log.Info($"接收到聊天消息: {chatData.message}");
+                                var chatRegisterData = new ChatRegisterData
+                                {
+                                    type = "chat",
+                                    userid = chatData.userid ?? "Unid",
+                                    user = GetUsernameByUserId(chatData.userid!),
+                                    message = chatData.message,
+                                    msgtype = chatData.msgtype ?? MessageType.Text,
+                                    // 替换为
+                                    timestamp = DateTime.Now
+                                };
+                                foreach (var client in Client)
+                                {
+                                    client.Send(System.Text.Encoding.UTF8.GetBytes(JsonSerializer.Serialize(chatRegisterData)));
+                                }
+                            }
+                            else
+                            {
+                                log.Warn("接收到无效的聊天消息");
+                            }
+                        }
+                        else
+                        {
+                            log.Warn("未知的请求类型: " + Type.type);
+                        }
+                    }
+                }
+            }
+            catch (SocketException ex)
+            {
+                log.Error("Socket error: " + ex.Message);
+            }
+            catch (JsonException ex)
+            {
+                log.Error("JSON parsing error: " + ex.Message);
+            }
+            catch (Exception ex)
+            {
+                log.Error("Error handling client: " + ex.Message);
+            }
+            finally
+            {
+                log.Info($"用户{socket.RemoteEndPoint}已断开连接");
+                socket.Close();
+                Client.Remove(socket);
+            }
+        }
+        /// <summary>
+        /// 查询User_db是否有相同用户名
+        /// </summary>
+        /// <param name="username"></param>
+        /// <returns></returns>
+        static bool UserExists(string username)
+        {
+            using var cmd = new SQLiteCommand("SELECT COUNT(*) FROM users WHERE username = @username", User_db);
+            cmd.Parameters.AddWithValue("@username", username);
+            var count = Convert.ToInt32(cmd.ExecuteScalar());
+            return count > 0;
+        }
+        /// <summary>
+        /// 验证用户登录信息并返回userid结果
+        /// </summary>
+        /// <param name="username"></param>
+        /// <param name="password"></param>
+        /// <returns></returns>
+        static string UserAuthentication(string username, string password)
+        {
+            using var cmd = new SQLiteCommand("SELECT userid FROM users WHERE username = @username AND password = @password", User_db);
+            cmd.Parameters.AddWithValue("@username", username);
+            cmd.Parameters.AddWithValue("@password", password);
+            var result = cmd.ExecuteScalar();
+            return result != null ? result.ToString()! : string.Empty;
+        }
+        // 在ChatServer类中添加一个方法用于初始化users表
+        private static void EnsureUsersTableExists()
+        {
+            using var cmd = new SQLiteCommand(@"
+                CREATE TABLE IF NOT EXISTS users (
+                    userid TEXT PRIMARY KEY,
+                    username TEXT NOT NULL UNIQUE,
+                    password TEXT NOT NULL
+                )", User_db);
+            cmd.ExecuteNonQuery();
+        }
+        /// <summary>
+        /// 根据userid查询对应的用户名
+        /// </summary>
+        /// <param name="userid"></param>
+        /// <returns>用户名，如果不存在则返回</returns>
+        static string GetUsernameByUserId(string userid)
+        {
+            if (string.IsNullOrEmpty(userid) || userid == "Unid")
+            {
+                return "Unnamed"; // 如果userid为空或为"Unid"，返回默认用户名
+            }
+            using var cmd = new SQLiteCommand("SELECT username FROM users WHERE userid = @userid", User_db);
+            cmd.Parameters.AddWithValue("@userid", userid);
+            var result = cmd.ExecuteScalar();
+            return result != null ? result.ToString()! : "Unnamed";
+        }
+        
+    }
+}

chatserver/Properties/launchSettings.json

@@ -0,0 +1,8 @@
+{
+  "profiles": {
+    "chatserver": {
+      "commandName": "Project",
+      "sqlDebugging": false
+    }
+  }
+}

chatserver/chatserver.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Remove="config\log4net.config" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Include="config\log4net.config">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </EmbeddedResource>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="log4net" Version="3.1.0" />
+    <PackageReference Include="System.Data.SQLite.Core" Version="1.0.119" />
+    <PackageReference Include="Ulid" Version="1.3.4" />
+  </ItemGroup>
+
+</Project>

chatserver/config/log4net.config

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+  log4net 配置文件
+  该配置定义了日志记录的方式、格式和存储位置。
+  主要使用 RollingFileAppender 进行按日期滚动的日志文件输出。
+-->
+<configuration>
+  <log4net>
+    <!--
+      RollingLogFileAppender：按日期滚动的文件日志记录器
+      日志文件存储在 log\ 目录下，文件名格式为 yyyyMMdd_chat.log
+      日志文件采用 UTF-8 编码，最大保留 100 个备份文件
+    -->
+	<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
+		<layout type="log4net.Layout.PatternLayout">
+			<conversionPattern value="[%date %thread %logger %-5level] - %message%newline" />
+		</layout>
+	</appender>
+    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
+      <!-- 日志文件名日期格式 -->
+      <datePattern value="yyyyMMdd'_chat.log'" />
+      <!-- 日志文件编码 -->
+      <encoding value="utf-8" />
+      <!-- 日志文件目录 -->
+      <file value="log\\" />
+      <!-- 是否追加到文件 -->
+      <appendToFile value="true" />
+      <!-- 按日期滚动日志文件 -->
+      <rollingStyle value="Date" />
+      <!-- 是否使用静态文件名 -->
+      <staticLogFileName value="false" />
+      <!-- 最大备份文件数 -->
+      <param name="MaxSizeRollBackups" value="100" />
+      <!-- 日志输出格式 -->
+      <layout type="log4net.Layout.PatternLayout">
+        <!--
+          日志格式说明：
+          %date    日志时间
+          %thread  线程ID
+          %logger  日志记录器名称
+          %-5level 日志级别
+          %ndc     嵌套诊断上下文
+          %message 日志内容
+          %newline 换行
+        -->
+        <conversionPattern value="[%date %thread %logger %-5level] - %message%newline" />
+      </layout>
+	  </appender>
+    <!--
+      根日志记录器，记录所有级别日志
+      并将日志输出到 RollingLogFileAppender
+    -->
+    <root>
+      <level value="all" />
+		<appender-ref ref="ConsoleAppender" />
+      <appender-ref ref="RollingLogFileAppender" />
+    </root>
+  </log4net>
+</configuration>