JDBC connection with MySQL:: Error

Hi. I'm trying to get information from my DB using this JDBC example and the error says that the connection could not be created to the database server. I believe that the problem is on how I imported the .jar library to the IDE. I'm new on IntelliJ.

<CODE>

package jdbcexercise;
import java.sql.*;

public class JDBCExercise {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/sga?useSSL=false";

        try{
            Class.forName("com.mysql.jdbc.Driver");
            //Create a connection object
            Connection connection = (Connection) DriverManager.getConnection(url,"root","p4assword");
            Statement instruction = connection.createStatement();

            String sql = "SELECT idpersona, name, lastname FROM person";
            ResultSet result = instruction.executeQuery(sql);
            while(result.next()){
                System.out.println("Idperson: " +result.getInt(1));
                System.out.println("Name: "+result.getString(2));
                System.out.println("Lastname: "+result.getString(3));
            }
            result.close();
            instruction.close();
            connection.close();

        }catch (ClassNotFoundException | SQLException e){
            e.printStackTrace();
        }

    }
}



The exception that was thrown is the next.