diff --git a/SweetChatService/Config/FreeSqlSetup.cs b/SweetChatService/Config/FreeSqlSetup.cs
index c8399b6..f5761cb 100644
--- a/SweetChatService/Config/FreeSqlSetup.cs
+++ b/SweetChatService/Config/FreeSqlSetup.cs
@@ -1,4 +1,6 @@
 using FreeSql;
+using System.Reflection;
+using Yitter.IdGenerator;
 
 namespace SweetChatService.Config
 {
@@ -6,14 +8,29 @@ namespace SweetChatService.Config
     {
         public static IFreeSql CreateFreeSql(string connectionString)
         {
-            return new FreeSqlBuilder()
+            var fsql = new FreeSqlBuilder()
                 .UseConnectionString(DataType.MySql, connectionString)
                 .UseAutoSyncStructure(false)
-                .UseMonitorCommand(cmd =>
-                {
-                    Console.WriteLine(cmd.CommandText);
-                })
+                //.UseMonitorCommand(cmd =>
+                //{
+                //    Console.WriteLine(cmd.CommandText);
+                //})
                 .Build();
+
+            fsql.Aop.AuditValue += (_, e) =>
+            {
+                var hasSnowflake = e.Property.GetCustomAttribute<SnowflakeAttribute>(false) != null;
+
+                if (e.Column.CsType == typeof(long) && hasSnowflake)
+                {
+                    if (e.Value == null || e.Value.ToString() == "0")
+                    {
+                        e.Value = YitIdHelper.NextId();
+                    }
+                }
+            };
+
+            return fsql;
         }
     }
 }
diff --git a/SweetChatService/Config/SnowflakeAttribute.cs b/SweetChatService/Config/SnowflakeAttribute.cs
new file mode 100644
index 0000000..3ba397b
--- /dev/null
+++ b/SweetChatService/Config/SnowflakeAttribute.cs
@@ -0,0 +1,4 @@
+namespace SweetChatService.Config
+{
+    public class SnowflakeAttribute : Attribute { }
+}
diff --git a/SweetChatService/Config/Startup.cs b/SweetChatService/Config/Startup.cs
index d6c92ec..5d1f181 100644
--- a/SweetChatService/Config/Startup.cs
+++ b/SweetChatService/Config/Startup.cs
@@ -11,11 +11,7 @@
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             app.UseRouting();
-
-            app.UseEndpoints(endpoints =>
-            {
-                endpoints.MapControllers();
-            });
+            app.UseEndpoints(endpoints => endpoints.MapControllers());
         }
     }
 }
diff --git a/SweetChatService/Controllers/AuthController.cs b/SweetChatService/Controllers/AuthController.cs
index baa24bf..8cdfab0 100644
--- a/SweetChatService/Controllers/AuthController.cs
+++ b/SweetChatService/Controllers/AuthController.cs
@@ -6,14 +6,9 @@ namespace SweetChatService.Controllers
 {
     [ApiController]
     [Route("api/[controller]")]
-    public class AuthController : ControllerBase
+    public class AuthController(UserService userService) : ControllerBase
     {
-        private readonly UserService _userService;
-
-        public AuthController(UserService userService)
-        {
-            _userService = userService;
-        }
+        private readonly UserService _userService = userService;
 
         [HttpPost("login")]
         public IActionResult Login([FromBody] LoginDto dto)
@@ -31,7 +26,7 @@ namespace SweetChatService.Controllers
             {
                 return Ok(new
                 {
-                    userId = user.Id
+                    user
                 });
             }
         }
diff --git a/SweetChatService/Controllers/MessageController.cs b/SweetChatService/Controllers/MessageController.cs
new file mode 100644
index 0000000..a08fabe
--- /dev/null
+++ b/SweetChatService/Controllers/MessageController.cs
@@ -0,0 +1,24 @@
+using Microsoft.AspNetCore.Mvc;
+using SweetChatService.Services;
+
+namespace SweetChatService.Controllers
+{
+    [ApiController]
+    [Route("api/[controller]")]
+    public class MessageController(MessageService messageService) : ControllerBase
+    {
+        private readonly MessageService _messageService = messageService;
+
+        [HttpGet("session/{userId}")]
+        public IActionResult QueryChatSession(long userId)
+        {
+            return Ok(_messageService.QueryChatSession(userId));
+        }
+
+        [HttpGet("session/{conversationId}/detail")]
+        public IActionResult QueryChatMessage(long conversationId)
+        {
+            return Ok(_messageService.QueryChatMessage(conversationId));
+        }
+    }
+}
diff --git a/SweetChatService/Controllers/UserController.cs b/SweetChatService/Controllers/UserController.cs
index aa98ad9..b828857 100644
--- a/SweetChatService/Controllers/UserController.cs
+++ b/SweetChatService/Controllers/UserController.cs
@@ -7,14 +7,9 @@ namespace SweetChatService.Controllers
 {
     [ApiController]
     [Route("api/[controller]")]
-    public class UserController : ControllerBase
+    public class UserController(UserService userService) : ControllerBase
     {
-        private readonly UserService _userService;
-
-        public UserController(UserService userService)
-        {
-            _userService = userService;
-        }
+        private readonly UserService _userService = userService;
 
         [HttpGet("friend/{userId}")]
         public IActionResult QueryFriendByUserId(long userId)
diff --git a/SweetChatService/Dockerfile b/SweetChatService/Dockerfile
new file mode 100644
index 0000000..75b8a6c
--- /dev/null
+++ b/SweetChatService/Dockerfile
@@ -0,0 +1,8 @@
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS runtime
+WORKDIR /app
+COPY ./publish .
+EXPOSE 5050
+EXPOSE 5051
+RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
+RUN echo 'Asia/Shanghai' > /etc/timezone
+ENTRYPOINT ["dotnet", "SweetChatService.dll"]
\ No newline at end of file
diff --git a/SweetChatService/Dto/ChatMessageDto.cs b/SweetChatService/Dto/ChatMessageDto.cs
new file mode 100644
index 0000000..23078df
--- /dev/null
+++ b/SweetChatService/Dto/ChatMessageDto.cs
@@ -0,0 +1,14 @@
+namespace SweetChatService.Dto
+{
+    /// <summary>
+    /// 会话消息
+    /// </summary>
+    public class ChatMessageDto
+    {
+        public long MsgId { get; set; }
+        public long SenderId { get; set; }
+        public string Content { get; set; } = string.Empty;
+        public byte MsgType { get; set; }
+        public DateTime CreateTime { get; set; }
+    }
+}
diff --git a/SweetChatService/Dto/ChatSessionDto.cs b/SweetChatService/Dto/ChatSessionDto.cs
new file mode 100644
index 0000000..4db1059
--- /dev/null
+++ b/SweetChatService/Dto/ChatSessionDto.cs
@@ -0,0 +1,48 @@
+namespace SweetChatService.Dto
+{
+    /// <summary>
+    /// 会话列表项
+    /// </summary>
+    public class ChatSessionDto
+    {
+        /// <summary>
+        /// 会话ID
+        /// </summary>
+        public long ConversationId { get; set; }
+
+        /// <summary>
+        /// 对方用户ID
+        /// </summary>
+        public long TargetUserId { get; set; }
+
+        /// <summary>
+        /// 对方昵称（优先备注名）
+        /// </summary>
+        public string Title { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 对方头像
+        /// </summary>
+        public string AvatarUrl { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 最后一条消息类型
+        /// </summary>
+        public int MsgType { get; set; }
+
+        /// <summary>
+        /// 最后一条消息内容
+        /// </summary>
+        public string LastMessageContent { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 最后一条消息时间
+        /// </summary>
+        public DateTime LastMessageTime { get; set; }
+
+        /// <summary>
+        /// 未读消息数
+        /// </summary>
+        public int UnreadCount { get; set; }
+    }
+}
diff --git a/SweetChatService/Entity/Conversation.cs b/SweetChatService/Entity/Conversation.cs
new file mode 100644
index 0000000..de761a9
--- /dev/null
+++ b/SweetChatService/Entity/Conversation.cs
@@ -0,0 +1,26 @@
+using FreeSql.DataAnnotations;
+using System.ComponentModel;
+
+namespace SweetChatService.Entity
+{
+    [Table(Name = "conversation")]
+    [Description("会话表")]
+    public class Conversation
+    {
+        [Column(Name = "id", IsPrimary = true, IsIdentity = true)]
+        public long Id { get; set; }
+
+        [Column(Name = "type")]
+        [Description("1单聊 2群聊")]
+        public byte Type { get; set; }
+
+        [Column(Name = "last_msg_id")]
+        public long LastMsgId { get; set; }
+
+        [Column(Name = "create_time", ServerTime = DateTimeKind.Local, CanInsert = true, CanUpdate = false)]
+        public DateTime CreateTime { get; set; }
+
+        [Column(Name = "update_time", ServerTime = DateTimeKind.Local)]
+        public DateTime UpdateTime { get; set; }
+    }
+}
diff --git a/SweetChatService/Entity/ConversationMember.cs b/SweetChatService/Entity/ConversationMember.cs
new file mode 100644
index 0000000..4f6cdc3
--- /dev/null
+++ b/SweetChatService/Entity/ConversationMember.cs
@@ -0,0 +1,28 @@
+using FreeSql.DataAnnotations;
+using System.ComponentModel;
+
+namespace SweetChatService.Entity
+{
+    [Table(Name = "conversation_member")]
+    [Description("会话成员表")]
+    public class ConversationMember
+    {
+        [Column(Name = "conversation_id", IsPrimary = true)]
+        public long ConversationId { get; set; }
+
+        [Column(Name = "user_id", IsPrimary = true)]
+        public long UserId { get; set; }
+
+        [Column(Name = "unread_count")]
+        public int UnreadCount { get; set; }
+
+        [Column(Name = "last_read_msg_id")]
+        public long LastReadMsgId { get; set; }
+
+        [Column(Name = "create_time", ServerTime = DateTimeKind.Local, CanInsert = true, CanUpdate = false)]
+        public DateTime CreateTime { get; set; }
+
+        [Column(Name = "update_time", ServerTime = DateTimeKind.Local)]
+        public DateTime UpdateTime { get; set; }
+    }
+}
diff --git a/SweetChatService/Entity/Message.cs b/SweetChatService/Entity/Message.cs
new file mode 100644
index 0000000..367bc2a
--- /dev/null
+++ b/SweetChatService/Entity/Message.cs
@@ -0,0 +1,34 @@
+using FreeSql.DataAnnotations;
+using SweetChatService.Config;
+using System.ComponentModel;
+
+namespace SweetChatService.Entity
+{
+    [Table(Name = "message")]
+    [Description("消息表")]
+    public class Message
+    {
+        [Column(Name = "msg_id", IsPrimary = true, IsIdentity = false)]
+        [Snowflake]
+        public long MsgId { get; set; }
+
+        [Column(Name = "conversation_id")]
+        public long ConversationId { get; set; }
+
+        [Column(Name = "sender_id")]
+        public long SenderId { get; set; }
+
+        [Column(Name = "content")]
+        public string Content { get; set; } = "";
+
+        [Column(Name = "msg_type")]
+        [Description("1文本 2图片 3语音")]
+        public byte MsgType { get; set; }
+
+        [Column(Name = "create_time", ServerTime = DateTimeKind.Local, CanInsert = true, CanUpdate = false)]
+        public DateTime CreateTime { get; set; }
+
+        [Column(Name = "update_time", ServerTime = DateTimeKind.Local)]
+        public DateTime UpdateTime { get; set; }
+    }
+}
diff --git a/SweetChatService/Handlers/WsMsgHandler.cs b/SweetChatService/Handlers/WsMsgHandler.cs
index de95cad..2b56e42 100644
--- a/SweetChatService/Handlers/WsMsgHandler.cs
+++ b/SweetChatService/Handlers/WsMsgHandler.cs
@@ -1,15 +1,9 @@
 using Microsoft.AspNetCore.WebUtilities;
-using Microsoft.Extensions.Logging;
 using SuperSocket.WebSocket;
 using SuperSocket.WebSocket.Server;
 using SweetChatService.Models;
 using SweetChatService.Services;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Text.Json;
-using System.Threading.Tasks;
 
 namespace SweetChatService.Handlers
 {
diff --git a/SweetChatService/Models/ImMessage.cs b/SweetChatService/Models/ImMessage.cs
index 4c3814c..1ce560e 100644
--- a/SweetChatService/Models/ImMessage.cs
+++ b/SweetChatService/Models/ImMessage.cs
@@ -3,11 +3,14 @@ using System.Text.Json.Serialization;
 
 namespace SweetChatService.Models
 {
-    internal class ImMessage
+    public class ImMessage
     {
         [JsonPropertyName("type")]
         public ImMessageType Type { get; set; }
 
+        [JsonPropertyName("title")]
+        public string Title { get; set; } = default!;
+
         [JsonPropertyName("from")]
         public string From { get; set; } = default!;
 
@@ -22,6 +25,7 @@ namespace SweetChatService.Models
             return new ImMessage
             {
                 Type = ImMessageType.SYSTEM,
+                Title = "系统通知",
                 From = "SYSTEM",
                 To = to,
                 Content = content
diff --git a/SweetChatService/Models/ImMessageType.cs b/SweetChatService/Models/ImMessageType.cs
index c4691de..d06b6d9 100644
--- a/SweetChatService/Models/ImMessageType.cs
+++ b/SweetChatService/Models/ImMessageType.cs
@@ -3,7 +3,7 @@
 namespace SweetChatService.Models
 {
     [JsonConverter(typeof(JsonStringEnumConverter))]
-    internal enum ImMessageType
+    public enum ImMessageType
     {
         CHAT_PRIVATE,
         CHAT_GROUP,
diff --git a/SweetChatService/NLog.config b/SweetChatService/NLog.config
index 2483d17..99050fb 100644
--- a/SweetChatService/NLog.config
+++ b/SweetChatService/NLog.config
@@ -10,9 +10,9 @@
   <targets async="true">
     <target name="fluentbit" xsi:type="Network"
             newLine="true" lineEnding="LF"
-            address="tcp://60.247.145.200:5170">
+            address="tcp://host.docker.internal:5170">
       <layout xsi:type="JsonLayout">
-        <attribute name="topic" layout="message-hub"/>
+        <attribute name="topic" layout="sweet-chat"/>
         <attribute name="timestamp" layout="${longdate:universalTime=true}"/>
         <attribute name="level" layout="${level:uppercase=true}"/>
         <attribute name="logger" layout="${logger}"/>
@@ -27,6 +27,6 @@
   </targets>
 
   <rules>
-    <logger name="*" minlevel="Info" writeTo="stdout"/>
+    <logger name="*" minlevel="Info" writeTo="stdout, fluentbit"/>
   </rules>
 </nlog>
\ No newline at end of file
diff --git a/SweetChatService/Program.cs b/SweetChatService/Program.cs
index 2460cad..b3906bb 100644
--- a/SweetChatService/Program.cs
+++ b/SweetChatService/Program.cs
@@ -4,6 +4,7 @@ using SuperSocket.WebSocket.Server;
 using SweetChatService.Config;
 using SweetChatService.Handlers;
 using SweetChatService.Services;
+using Yitter.IdGenerator;
 
 var host = Host.CreateDefaultBuilder(args)
     .ConfigureWebHostDefaults(webBuilder =>
@@ -12,6 +13,9 @@ var host = Host.CreateDefaultBuilder(args)
     })
     .ConfigureServices((context, services) =>
     {
+        var options = new IdGeneratorOptions(6);
+        YitIdHelper.SetIdGenerator(options);
+
         services.AddSingleton<WsMsgHandler>();
         services.AddSingleton<WsSessionManager>();
 
@@ -19,6 +23,7 @@ var host = Host.CreateDefaultBuilder(args)
 
         services.AddSingleton(FreeSqlSetup.CreateFreeSql(context.Configuration["ConnectionStrings:Default"]));
         services.AddSingleton<UserService>();
+        services.AddSingleton<MessageService>();
     })
     .AsMultipleServerHostBuilder()
     .AddWebSocketServer(builder =>
diff --git a/SweetChatService/Services/MessageService.cs b/SweetChatService/Services/MessageService.cs
new file mode 100644
index 0000000..398e721
--- /dev/null
+++ b/SweetChatService/Services/MessageService.cs
@@ -0,0 +1,141 @@
+using SweetChatService.Dto;
+using SweetChatService.Entity;
+using SweetChatService.Models;
+
+namespace SweetChatService.Services
+{
+    public class MessageService
+    {
+        private readonly IFreeSql _fsql;
+
+        public MessageService(IFreeSql fsql) => _fsql = fsql;
+
+        /// <summary>
+        /// 获取或创建单聊会话
+        /// </summary>
+        public async Task<bool> SavePrivateMessageAsync(ImMessage msg)
+        {
+            long userId1 = long.Parse(msg.From);
+            long userId2 = long.Parse(msg.To);
+
+            var ids = new[] { userId1, userId2 };
+            Array.Sort(ids);
+
+            // 1️ 查询是否已存在会话
+
+            // 先从ConversationMember把包含用户1和用户2的找到
+            // 然后按照ConversationId分组
+            // 如果正好这个组里面的个数为2，则说明只有1和2，否则是其他的，比如群
+            var convId = await _fsql
+                .Select<ConversationMember>()
+                .Where(m => new[] { userId1, userId2 }.Contains(m.UserId))
+                .GroupBy(m => m.ConversationId)
+                .Having(g => g.Count() == 2)
+                .FirstAsync(g => g.Key);
+
+            // 2. 如果没查到
+            if (convId <= 0)
+            {
+                // 则先新增1条会话记录
+                var conversation = new Conversation
+                {
+                    Type = 1
+                };
+                conversation.Id = await _fsql.Insert(conversation).ExecuteIdentityAsync();
+
+                // 然后新增2条会话成员记录
+                var conversation_member = new[]
+                {
+                    // 一条是user1的
+                    new ConversationMember
+                    {
+                        ConversationId = conversation.Id,
+                        UserId = ids[0],
+                        UnreadCount = 0
+                    },
+                    // 一条是user2的
+                    new ConversationMember
+                    {
+                        ConversationId = conversation.Id,
+                        UserId = ids[1],
+                        UnreadCount = 0
+                    }
+                };
+                await _fsql.Insert(conversation_member).ExecuteAffrowsAsync();
+
+                // 重新赋值
+                convId = conversation.Id;
+            }
+
+            // 3. 插入消息表
+            var message = new Message
+            {
+                ConversationId = convId,
+                SenderId = userId1,
+                Content = msg.Content,
+                MsgType = 1,
+                CreateTime = DateTime.Now
+            };
+
+            message.MsgId = await _fsql.Insert(message).ExecuteIdentityAsync();
+
+            // 更新会话表
+            await _fsql.Update<Conversation>()
+                    .Set(c => c.LastMsgId, message.MsgId)
+                    .Set(c => c.UpdateTime, DateTime.Now)
+                    .Where(c => c.Id == convId)
+                    .ExecuteAffrowsAsync();
+
+            // 接收方未读+1
+            await _fsql.Update<ConversationMember>()
+                    .Set(a => a.UnreadCount + 1)
+                    .Where(w => w.ConversationId == convId && w.UserId == userId2)
+                    .ExecuteAffrowsAsync();
+
+            // 发送方更新已读位置
+            await _fsql.Update<ConversationMember>()
+                    .Set(a => a.LastReadMsgId, message.MsgId)
+                    .Where(w => w.ConversationId == convId && w.UserId == userId1)
+                    .ExecuteAffrowsAsync();
+
+            return true;
+        }
+
+        public List<ChatSessionDto> QueryChatSession(long userId)
+        {
+            return _fsql.Select<ConversationMember, Conversation, ConversationMember, User, Message>()
+                        .LeftJoin((cm, c, cmo, u, m) => cm.ConversationId == c.Id && c.Type == 1)
+                        .LeftJoin((cm, c, cmo, u, m) => cmo.ConversationId == c.Id && cmo.UserId != cm.UserId)
+                        .LeftJoin((cm, c, cmo, u, m) => u.Id == cmo.UserId)
+                        .LeftJoin((cm, c, cmo, u, m) => c.LastMsgId == m.MsgId)
+                        .Where((cm, _, _, _, _) => cm.UserId == userId)
+                        .OrderByDescending((_, _, _, _, m) => m.CreateTime)
+                        .ToList((cm, c, cmo, u, m) => new ChatSessionDto
+                        {
+                            ConversationId = c.Id,
+                            TargetUserId = u.Id,
+                            Title = u.Nickname,
+                            AvatarUrl = u.AvatarUrl,
+                            MsgType = m.MsgType,
+                            LastMessageContent = m.Content ?? "",
+                            LastMessageTime = m.CreateTime,
+                            UnreadCount = cm.UnreadCount
+                        });
+        }
+
+        public List<ChatMessageDto> QueryChatMessage(long conversationId)
+        {
+            return _fsql.Select<Message>()
+                        .Where(m => m.ConversationId == conversationId)
+                        .OrderBy(m => m.MsgId)
+                        .ToList((m) => new ChatMessageDto
+                        {
+                            MsgId = m.MsgId,
+                            SenderId = m.SenderId,
+                            Content = m.Content,
+                            MsgType = m.MsgType,
+                            CreateTime = m.CreateTime
+                        });
+        }
+    }
+}
diff --git a/SweetChatService/Services/PrivateChatService.cs b/SweetChatService/Services/PrivateChatService.cs
index a78ee10..56bf44d 100644
--- a/SweetChatService/Services/PrivateChatService.cs
+++ b/SweetChatService/Services/PrivateChatService.cs
@@ -3,12 +3,15 @@ using SweetChatService.Models;
 
 namespace SweetChatService.Services
 {
-    internal class PrivateChatService(WsSessionManager wsSessionManager)
+    internal class PrivateChatService(WsSessionManager wsSessionManager, MessageService messageService)
     {
         private readonly WsSessionManager _wsSessionManager = wsSessionManager;
+        private readonly MessageService _messageService = messageService;
 
         public async Task HandleAsync(ImMessage msg)
         {
+            await _messageService.SavePrivateMessageAsync(msg);
+
             // 推送给对方
             if (_wsSessionManager.TryGet(msg.To, out var toSession))
             {
diff --git a/SweetChatService/SweetChatService.csproj b/SweetChatService/SweetChatService.csproj
index 396e04c..cc12ca5 100644
--- a/SweetChatService/SweetChatService.csproj
+++ b/SweetChatService/SweetChatService.csproj
@@ -11,9 +11,17 @@
     <PackageReference Include="FreeSql.Provider.MySqlConnector" Version="3.5.310" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.0" />
     <PackageReference Include="NLog.Extensions.Hosting" Version="6.1.3" />
+    <PackageReference Include="NLog.Targets.Network" Version="6.0.4" />
     <PackageReference Include="SuperSocket" Version="2.0.2" />
     <PackageReference Include="SuperSocket.WebSocket" Version="2.1.0" />
     <PackageReference Include="SuperSocket.WebSocket.Server" Version="2.1.0" />
+    <PackageReference Include="Yitter.IdGenerator" Version="1.0.14" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Update="NLog.config">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
   </ItemGroup>
 
   <ItemGroup>
@@ -23,6 +31,9 @@
     <None Update="NLog.config">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Update="Properties\launchSettings.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>
diff --git a/SweetChatService/Yitter/YitIdHelper.cs b/SweetChatService/Yitter/YitIdHelper.cs
new file mode 100644
index 0000000..f98597a
--- /dev/null
+++ b/SweetChatService/Yitter/YitIdHelper.cs
@@ -0,0 +1,6 @@
+namespace Yitter
+{
+    internal class YitIdHelper
+    {
+    }
+}
\ No newline at end of file
diff --git a/SweetChatService/appsettings.json b/SweetChatService/appsettings.json
index 38e2d10..ebed9b6 100644
--- a/SweetChatService/appsettings.json
+++ b/SweetChatService/appsettings.json
@@ -1,6 +1,13 @@
 {
   "ConnectionStrings": {
-    "Default": "Server=localhost;Port=3306;Database=sweet_chat;Uid=root;Pwd=estun@medical;Charset=utf8mb4;"
+    "Default": "Server=host.docker.internal;Port=3306;Database=sweet_chat;Uid=root;Pwd=19940822Cxx@1213;Charset=utf8mb4;"
+  },
+  "Kestrel": {
+    "Endpoints": {
+      "Http": {
+        "Url": "http://+:5051"
+      }
+    }
   },
   "serverOptions": {
     "WebSocketServer": {