diff --git a/chatclient/MainWindow.xaml b/chatclient/MainWindow.xaml
index 144a7c0..a81236f 100644
--- a/chatclient/MainWindow.xaml
+++ b/chatclient/MainWindow.xaml
@@ -10,9 +10,6 @@
         mc:Ignorable="d"
         Title="ChatWindow" Height="450" Width="800" MinHeight="240" MinWidth="380"
         Style="{StaticResource MaterialDesignWindow}" Closed="MainWindow_Closed" Loaded="MainWindow_Loaded">
-    <Window.Resources>
-        <data:TimeFormatConverter x:Key="TimeConverter"/>
-    </Window.Resources>
     <Grid>
         <materialDesign:Card>
             <TabControl x:Name="TabControl" VerticalContentAlignment="Bottom" materialDesign:ColorZoneAssist.Mode="PrimaryMid" Style="{StaticResource MaterialDesignNavigationRailTabControl}">
diff --git a/chatserver/Program.cs b/chatserver/Program.cs
index 6ed120c..f83f425 100644
--- a/chatserver/Program.cs
+++ b/chatserver/Program.cs
@@ -9,6 +9,7 @@ using System.Text.Json;
 using System.Reflection;
 using static log4net.Appender.FileAppender;
 using System.IO.Compression;
+using System.Text;
 
 [assembly: XmlConfigurator(ConfigFile = "config/log4net.config", Watch = true)]
 namespace chatserver
@@ -50,7 +51,7 @@ namespace chatserver
         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 = new SQLiteConnection("Data Source=ServerUser.db;Version=3;");
             User_db.Open();
             InitializeTable();
             log.Info("数据库连接已打开");
@@ -59,6 +60,18 @@ namespace chatserver
         {
             const int prefixSize = sizeof(int);
             byte[] prefixBuffer = new byte[prefixSize];
+            int received = socket.Receive(prefixBuffer, 0, 4, SocketFlags.Peek);
+            if (received == 4)
+            {
+                string httpStart = Encoding.ASCII.GetString(prefixBuffer);
+                if (httpStart.StartsWith("GET") || httpStart.StartsWith("POST") ||
+                    httpStart.StartsWith("HEAD") || httpStart.StartsWith("HTTP"))
+                {
+                    log.Warn("检测到HTTP请求，拒绝连接");
+                    socket.Close();
+                    return;
+                }
+            }
             try
             {
                 while (true)