try{
ps = conn.prepareStatement("select * from cargo");
rs = ps.executeQuery();
List<CargoRelatorio> listaRelatorio = new ArrayList<CargoRelatorio>();
while(rs.next()) {
listaRelatorio.add(new CargoRelatorio(rs.getInt(1), rs.getString(2)));
}
return listaRelatorio;
} catch (Exception e) {
e.printStackTrace();