JTable表格中总是显示不出数据
只显示出空的表格，不显示数据库数据
代码如下：
          Class.forName("com.mysql.jdbc.Driver");
            connect = DriverManager.getConnection("jdbc:mysql://localhost/tablesys?" + "user=test&password=123");
            preparedStatement = connect.prepareStatement("select * from tablesys.booking ");
            ResultSet rs = preparedStatement.executeQuery();
               int count = 0;
               while(rs.next()){
               count++;
                 }
             Object[][] info = new Object[count][6];
            while(rs.next()){
             info[count][0] = rs.getString("date")+ " " +rs.getString("time");
             info[count][1] = rs.getString("name");
             info[count][2] = rs.getString("peopleamout");
             info[count][3] = Integer.valueOf( rs.getInt("tableid"));
             info[count][4] = rs.getString("phone");
             info[count][5] = Integer.valueOf( rs.getInt("bookingid") );
               }
           MyTableModel model = new MyTableModel(info, new String[]{
                            "Time", "Name", "Covers", "Table No", "Phone", "BookingID"
                        });
           jTable1.setModel(model);
           
            } catch (Exception ex) {
                Logger.getLogger(MainMenu.class.getName()).log(Level.SEVERE, null, ex);
            }
------解决方案--------------------

         Class.forName("com.mysql.jdbc.Driver");

            connect = DriverManager.getConnection("jdbc:mysql://localhost/tablesys?" + "user=test&password=123");

            preparedStatement = connect.prepareStatement("select * from tablesys.booking ");

            ResultSet rs = preparedStatement.executeQuery();

               int count = 0;

               while(rs.next()){// 这里已经迭代完了，所以下面2处没有了

               count++;

                 }

             Object[][] info = new Object[count][6];

            while(rs.next()){//这里没有进入

             info[count][0] = rs.getString("date")+ " " +rs.getString("time");

             info[count][1] = rs.getString("name");

             info[count][2] = rs.getString("peopleamout");

             info[count][3] = Integer.valueOf( rs.getInt("tableid"));

             info[count][4] = rs.getString("phone");