java中怎样连接别人给我主库域名

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class DatabaseConnector {
    public static void main(String[] args) {
        // 数据库连接信息
        String url = "jdbc:mysql://your-master-domain:3306/your-database-name";
        String user = "your-username";
        String password = "your-password";

        try {
            // 加载MySQL JDBC驱动
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 建立连接
            Connection connection = DriverManager.getConnection(url, user, password);
            System.out.println("成功连接到数据库!");

            // 关闭连接
            connection.close();
        } catch (ClassNotFoundException e) {
            System.err.println("找不到JDBC驱动程序!");
            e.printStackTrace();
        } catch (SQLException e) {
            System.err.println("数据库连接失败!");
            e.printStackTrace();
        }
    }
}