Question

所以我正在创建一个程序，我这次尝试做的就是从JTable中复制内容以及其他内容并将它们插入到PostgreSQL表中，事实是，它重复了来自最后一行的数据仅由现有的行数量组成，例如，如果最后一行显示“Cat＆＃39;并且有5行，它将在PostgreSQL表中插入5行，其中包含“＆＃39; Cat＆＃39;在最后一行之前忽略其他人的数据。

try{
                Connection conn = null;
                PreparedStatement pst = null;
                Calendar calendario = GregorianCalendar.getInstance(); // creates a new calendar instance
                String hora = Integer.toString(calendario.get(Calendar.HOUR_OF_DAY));
                int minutos = calendario.get(Calendar.MINUTE);

                int rows=table.getModel().getRowCount();
                Class.forName("org.postgresql.Driver").newInstance();
                conn = DriverManager
                        .getConnection("jdbc:postgresql://localhost:5432/ruleta",
                        "postgres", "123456");
                conn.setAutoCommit(false);
                SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
                 String date = sdf.format(new Date()); 
                String queryco = "Insert into tickets(no_ticket,animal,hora,fecha,apuestabsf,ruleta, pagado, premio) values (?,?,?,?,?,?,?,?)";
                pst = conn.prepareStatement(queryco);
                for(int row = 0; row<rows; row++)
                {

                    String jugada = (String)table.getValueAt(row, 0);
                    String ruleta = (String)table.getValueAt(row, 1);
                    String apuesta = (String)table.getValueAt(row, 2);

                    pst.setInt(1, variable.ticket);
                    pst.setString(2, variable.animal);
                    pst.setString(3, hora + ":" + minutos);
                    pst.setString(4, date);
                    pst.setInt(5, Integer.parseInt(textField_1.getText()));
                    if(chckbxNewCheckBox.isSelected() == true) pst.setString(6, selec1);
                     if(chckbxNewCheckBox_1.isSelected() == true) pst.setString(6, selec2);
                     if(chckbxNewCheckBox_2.isSelected() == true) pst.setString(6, selec3);
                     if(chckbxNewCheckBox_3.isSelected() == true) pst.setString(6, selec4);
                     if(chckbxNewCheckBox_4.isSelected() == true) pst.setString(6, selec5);
                     if(chckbxNewCheckBox_5.isSelected() == true) pst.setString(6, selec6);
                     if(chckbxNewCheckBox_6.isSelected() == true) pst.setString(6, selec7);
                     if(chckbxNewCheckBox_7.isSelected() == true) pst.setString(6, selec8);
                    pst.setString(7, "No decidido");
                    pst.setInt(8, Integer.parseInt(textField_1.getText()) * 30);

                    pst.addBatch();

                }
                pst.executeBatch();

                conn.commit();
                }

                catch(Exception e){
                    System.err.println(e);
                }

Answer 1

您从表中检索一些数据：

 String jugada = (String)table.getValueAt(row, 0);
 String ruleta = (String)table.getValueAt(row, 1);
 String apuesta = (String)table.getValueAt(row, 2);

但无法将它们插入数据库的任何位置。

批量复制最后一行

1 个答案: