怎样连接数据库mysql

import java.sql.*;

public class MySQLConnectionExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "root";
        String password = "password";
        
        try {
            // 加载MySQL驱动程序
            Class.forName("com.mysql.jdbc.Driver");
            
            // 建立数据库连接
            Connection connection = DriverManager.getConnection(url, username, password);
            
            // 创建Statement对象
            Statement statement = connection.createStatement();
            
            // 执行查询语句
            String query = "SELECT * FROM mytable";
            ResultSet resultSet = statement.executeQuery(query);
            
            // 处理查询结果
            while (resultSet.next()) {
                // 获取每一行数据的具体字段值
                String column1 = resultSet.getString("column1");
                int column2 = resultSet.getInt("column2");
                
                // 进行相应的处理
                
            }
            
            // 关闭数据库连接
            resultSet.close();
            statement.close();
            connection.close();
            
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}