public static Connection getConnection(String url, String usuario, String senha) throws SQLException{
    return DriverManager.getConnection(url, usuario, senha);
}// fim do static Connection

public  static Connection getImportConnection() throws SQLException{
    return getConnection(
        "jdbc:mysql://localhost" + "/systemimportxml", "root", "12345678");
}// fim do static Connection

JasperPrint print = JasperFillManager.fillReport(inputStream, parametros, conexao);
    viewReportFrame(titulo, print);
}

public static void openReport(
        String titulo,
        InputStream inputStream,
        Map parametros,
        JRDataSource dataSource ) throws JRException {

    JasperPrint print = JasperFillManager.fillReport(inputStream, parametros, dataSource);
    viewReportFrame(titulo, print);
}

private static void viewReportFrame(String titulo, JasperPrint print){
    JRViewer viewer = new JRViewer(print);

    JFrame frameRelatorio = new JFrame(titulo);

    frameRelatorio.add(viewer, BorderLayout.CENTER);

    frameRelatorio.setSize(500, 500);

    frameRelatorio.setExtendedState( JFrame.MAXIMIZED_BOTH);

    frameRelatorio.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE);

    frameRelatorio.setVisible(true);
}// fim d static void viewReportFrame

public void abrirRelatorioFornecedor(){
    InputStream inputStream = getClass().getResourceAsStream("//Report/fornecedor.jasper");

    Map parametros = new HashMap();

    try{
        ReportUtils.openReport( "fornecedor", inputStream, parametros, ConnectionFactory.getImportConnection());
    } catch (SQLException exc){
        System.out.println(exc);
    }catch (JRException exc){
        System.out.println(exc);
    }// fim do catch
}// fim do void abrirRelatorioFornecedor