如何通过jdbc:mysql连接到siteground

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

public class MySQLExample {
    public static void main(String[] args) {
        // 数据库连接信息
        String url = "jdbc:mysql://yourhostname:yourport/databasename";
        String username = "yourusername";
        String password = "yourpassword";
        
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;
        
        try {
            // 加载驱动程序
            Class.forName("com.mysql.jdbc.Driver");
            
            // 建立连接
            connection = DriverManager.getConnection(url, username, password);
            
            // 创建Statement对象
            statement = connection.createStatement();
            
            // 执行查询
            resultSet = statement.executeQuery("SELECT * FROM yourtable");
            
            // 处理结果
            while (resultSet.next()) {
                String column1 = resultSet.getString("column1");
                String column2 = resultSet.getString("column2");
                // 处理每一行的数据
            }
            
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            // 关闭连接和释放资源
            try {
                if (resultSet != null) resultSet.close();
                if (statement != null) statement.close();
                if (connection != null) connection.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}