diff --git a/FileTransferClient/pom.xml b/FileTransferClient/pom.xml
index 1e1f7fb..ad61382 100644
--- a/FileTransferClient/pom.xml
+++ b/FileTransferClient/pom.xml
@@ -15,7 +15,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.java.version>21</project.java.version>
+        <project.java.version>1.8</project.java.version>
     </properties>
 
     <dependencies>
@@ -28,7 +28,6 @@
             <groupId>com.formdev</groupId>
             <artifactId>flatlaf</artifactId>
             <version>3.4.1</version>
-            <classifier>no-natives</classifier>
         </dependency>
     </dependencies>
 
diff --git a/FileTransferClient/src/main/java/com/xiaoliu/window/MainWindow.java b/FileTransferClient/src/main/java/com/xiaoliu/window/MainWindow.java
index 30e79bb..2df1646 100644
--- a/FileTransferClient/src/main/java/com/xiaoliu/window/MainWindow.java
+++ b/FileTransferClient/src/main/java/com/xiaoliu/window/MainWindow.java
@@ -63,8 +63,8 @@ public class MainWindow extends JFrame {
 
         // 将JScrollPane添加到窗口中
         getContentPane().add(scrollPane, BorderLayout.CENTER);
-        JLabel adress  = new JLabel();
-        adress.setText("地址：");
+        JLabel address  = new JLabel();
+        address.setText("地址：");
         JTextField textField = new JTextField(20); // 参数20指定了文本框的列数
         JButton sendButton = new JButton("连接");
         JButton stopButton = new JButton("断开");
@@ -88,16 +88,17 @@ public class MainWindow extends JFrame {
                     stopButton.setEnabled(true);
                     Client.init(host, Integer.parseInt(port));
                 } catch (Exception ex) {
-                    setLogText("连接失败...");
+                    sendButton.setEnabled(true);
                     stopButton.setEnabled(false);
-                    setStatusLabel("已连接", Color.RED);
+                    setStatusLabel("未连接", Color.RED);
+                    JOptionPane.showMessageDialog(this, "连接失败,请检查...", "连接", JOptionPane.ERROR_MESSAGE);
                     throw new RuntimeException(ex);
                 }
             }).start();
         });
 
         JPanel northPanel = new JPanel();
-        northPanel.add(adress);
+        northPanel.add(address);
         northPanel.add(textField);
         northPanel.add(sendButton);
         northPanel.add(statusLabel, BorderLayout.WEST);
diff --git a/FileTransferCommon/pom.xml b/FileTransferCommon/pom.xml
index 7bdc311..6c720e8 100644
--- a/FileTransferCommon/pom.xml
+++ b/FileTransferCommon/pom.xml
@@ -15,7 +15,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.java.version>21</project.java.version>
+        <project.java.version>1.8</project.java.version>
     </properties>
 
     <dependencies>
diff --git a/FileTransferService/pom.xml b/FileTransferService/pom.xml
index 21a39ab..639ebb2 100644
--- a/FileTransferService/pom.xml
+++ b/FileTransferService/pom.xml
@@ -15,7 +15,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.java.version>21</project.java.version>
+        <project.java.version>1.8</project.java.version>
     </properties>
 
     <dependencies>