idea中连接mysql数据库

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.26</version>
</dependency>

implementation 'mysql:mysql-connector-java:8.0.26'

import java.sql.*;

public class Main {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase"; // 数据库连接URL
        String username = "root"; // 数据库用户名
        String password = "password"; // 数据库密码

        try {
            Connection connection = DriverManager.getConnection(url, username, password);
            Statement statement = connection.createStatement();
            ResultSet resultSet = statement.executeQuery("SELECT * FROM mytable");

            while (resultSet.next()) {
                // 处理查询结果
                String column1 = resultSet.getString("column1");
                int column2 = resultSet.getInt("column2");
                // ...
            }

            resultSet.close();
            statement.close();
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}