JTable过滤器使用两（2）个JDateChooser

Question

我有2个jdatechooser，一个是datefrom，另一个是dateto。我想在这两个jdatechooser的范围内过滤我的jTable数据。我的问题是每当我尝试过滤表（日期在我的jdatechoosers范围内）时，我的表就变空了。

SimpleDateFormat sdf = new SimpleDateFormat("MMM d, yyyy");

        String from = (String) sdf.format(txt_datefrom.getDate());
        String to = (String) sdf.format(txt_dateto.getDate());

try {
                String sql = "select reference, name, date, time, totalAmount, "
                        + "discount, status from receipts where date "
                        + "between '" + from + "' and '" + to + "' ";
                pst = conn.prepareStatement(sql);
                rs = pst.executeQuery();
                table_audit.setModel(DbUtils.resultSetToTableModel(rs));
                total();
            } catch (Exception e) {

            }