如何用java语言连接mysql数据库

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

public class MySQLConnector {
    public static void main(String[] args) {
        // 设置数据库连接参数
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "root";
        String password = "password";

        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

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

            // 获取数据库连接
            connection = DriverManager.getConnection(url, username, password);

            // 创建Statement对象
            statement = connection.createStatement();

            // 执行查询语句
            resultSet = statement.executeQuery("SELECT * FROM users");

            // 处理查询结果
            while (resultSet.next()) {
                String username = resultSet.getString("username");
                String email = resultSet.getString("email");
                System.out.println("Username: " + username + ", Email: " + email);
            }
        } catch (ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        } finally {
            // 关闭连接，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();
            }
        }
    }
}