diff --git a/src/main/java/com/example/springdemo/utils/DataBaseUtil.java b/src/main/java/com/example/springdemo/utils/DataBaseUtil.java
deleted file mode 100644
index b3a3bca..0000000
--- a/src/main/java/com/example/springdemo/utils/DataBaseUtil.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.example.springdemo.utils;
-
-import com.example.springdemo.config.DataBaseProperties;
-import jakarta.annotation.Resource;
-import org.springframework.stereotype.Component;
-
-import java.sql.*;
-
-@Component
-public class DataBaseUtil {
-    @Resource
-    DataBaseProperties dataBaseProperties;
-    // Connect to database
-    private final String connectionUrl =
-            dataBaseProperties.getUrl() +
-                    dataBaseProperties.getUsername() +
-                    dataBaseProperties.getPassword();
-
-    public Connection getConnection() {
-        Connection connection = null;
-        try {
-            // Code here.
-            connection = DriverManager.getConnection(connectionUrl);
-        }
-        // Handle any errors that may have occurred.
-        catch (SQLException e) {
-            e.printStackTrace();
-        }
-        return connection;
-    }
-
-    //释放资源
-    public void close(Connection conn, Statement st, ResultSet rs) {
-        try {
-            if (rs != null) {
-                rs.close();
-            }
-            if (st != null) {
-                st.close();
-            }
-            if (conn != null) {
-                conn.close();
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-}