Código dando erro na conexão do MySql com o Java

> package interfaceProjeto;
> 
> import java.sql.Connection;
> import java.sql.DriverManager;
> import java.sql.ResultSet;
> import java.sql.SQLException;
> import java.sql.Statement;
> 
> public class Conexao {
>     
>     private String url;
>     private String usuario;
>     private String senha;
>     private Connection con;
>     private Statement statment;
> 
>     public Conexao() throws Exception {
>         url = "jdbc:mysql://localhost:3306/bd_pizzarias";
>         usuario = "root";
>         senha = "123";
>         
>         //Class.forName("com.mysql.cj.jdbc.Driver");
>         con = DriverManager.getConnection(url, usuario, senha);
>         //con = DriverManager.getConnection(url);
>         statment = con.createStatement();
>         
>         System.out.println("Conexão realizada com sucesso!");
>     }
>     
>     public ResultSet consulta(String sql) throws SQLException{
>         return statment.executeQuery(sql);
>     }
>     
>     public int update(String sql) throws SQLException{
>         return statment.executeUpdate(sql);
>     }
> }