diff --git a/springLearn202503/src/main/java/com/sec/Main.java b/springLearn202503/src/main/java/com/sec/Main.java
index 7ef5b8e..9b0250f 100644
--- a/springLearn202503/src/main/java/com/sec/Main.java
+++ b/springLearn202503/src/main/java/com/sec/Main.java
@@ -13,6 +13,10 @@ import java.sql.*;
 // click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
 public class Main {
     public static void main(String[] args) {
+        String driver = "com.mysql.jdbc.Driver";
+        String url = "jdbc:mysql://47.103.155.22:3306/learn_spring";
+        String user = "root";
+        String password = "mysql_wafeYX";
 //        ApplicationContext application=new ClassPathXmlApplicationContext("application.xml");
         ClassPathXmlApplicationContext application=new ClassPathXmlApplicationContext("application.xml");
         UserDao userDao1 = (UserDao)application.getBean("UserDao");
@@ -23,10 +27,10 @@ public class Main {
 
 //        userDao.getData();
         DruidDataSource druidDataSource=new DruidDataSource();
-        druidDataSource.setDriverClassName("com.mysql.jdbc.Driver");
-        druidDataSource.setUrl("jdbc:mysql://47.103.155.22:3306/learn_spring");
-        druidDataSource.setUsername("root");
-        druidDataSource.setPassword("mysql_wafeYX");
+        druidDataSource.setDriverClassName(driver);
+        druidDataSource.setUrl(url);
+        druidDataSource.setUsername(user);
+        druidDataSource.setPassword(password);
 
         try {
             DruidPooledConnection connection = druidDataSource.getConnection();
@@ -44,10 +48,10 @@ public class Main {
         }
         ComboPooledDataSource comboPooledDataSource=new ComboPooledDataSource();
         try {
-            comboPooledDataSource.setDriverClass("com.mysql.jdbc.Driver");
-            comboPooledDataSource.setJdbcUrl("jdbc:mysql://47.103.155.22:3306/learn_spring");
-            comboPooledDataSource.setUser("root");
-            comboPooledDataSource.setPassword("mysql_wafeYX");
+            comboPooledDataSource.setDriverClass(driver);
+            comboPooledDataSource.setJdbcUrl(url);
+            comboPooledDataSource.setUser(user);
+            comboPooledDataSource.setPassword(password);
 
             Connection connection = comboPooledDataSource.getConnection();
             Statement statement = connection.createStatement();
@@ -61,5 +65,7 @@ public class Main {
             throw new RuntimeException(e);
         }
 
+
+
     }
 }
\ No newline at end of file
diff --git a/springLearn202503/target/classes/com/sec/Main.class b/springLearn202503/target/classes/com/sec/Main.class
index 673f089..b46fdf9 100644
Binary files a/springLearn202503/target/classes/com/sec/Main.class and b/springLearn202503/target/classes/com/sec/Main.class differ