Não consigo rodar o MySQL

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

public class Banco {
    
    static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    static final String DATABASE_URL = "jdbc:mysql://localhost/livros";
    
    public static void main(String args[])
    {
        Connection con = null;
        Statement stat = null;
        
        try
        {
            Class.forName(JDBC_DRIVER);
            con = DriverManager.getConnection(DATABASE_URL,"localhost","root");
            stat = con.createStatement();
            ResultSet rs = stat.executeQuery("SELECT * FROM livros");
            ResultSetMetaData rsmd = rs.getMetaData();
            int colunas = rsmd.getColumnCount();
            System.out.println("Tabela de Autores do Banco de livros");
            
            for(int i=0;i< colunas; i++)
                System.out.printf("%-8s\t",rsmd.getColumnName(i));
            System.out.println();
                
                while(rs.next())
                {
                    for(int j=0; j < colunas; j++)
                        System.out.printf("%-8s\t",rs.getObject(j));
                    System.out.println();
                }
        }
        catch(SQLException sqlException)
        {
            sqlException.printStackTrace();
            System.exit(1);
        }
        catch(ClassNotFoundException classNotFound)
        {
            classNotFound.printStackTrace();
            System.exit(1);
        }
        finally
        {
            try
            {
                stat.close();
                con.close();
            }
            catch(Exception e)
            {
                e.printStackTrace();
                System.exit(1);
            }
        }
    }
}