Question

我有JTable，如下图所示。单击行时，我希望它显示所有选定的行值。

viewMovie

public class viewMovie extends javax.swing.JFrame {

        public viewMovie() throws Exception {
            initComponents();
            populateJTable();
        }

      // create a methode to populate data Into JTable from Mysql  database And Displaying Picture

        public void populateJTable() throws Exception{
            MyQuery mq = new MyQuery();
            ArrayList<Movie> list = mq.BindTable();
            String[] columnName = {"Title","Date","Time","Price","Hall","Description","Image"};
            Object[][] rows = new Object[list.size()][8];
            for(int i = 0; i < list.size(); i++){
                //rows[i][0] = list.get(i).getID();
                rows[i][0] = list.get(i).getTitle();
                rows[i][1] = list.get(i).getDate();
                rows[i][2] = list.get(i).getTime();
                rows[i][3] = list.get(i).getPrice();
                rows[i][4] = list.get(i).getHall();
                rows[i][5] = list.get(i).getDescription();

                if(list.get(i).getImage() != null){

                 ImageIcon image = new ImageIcon(new ImageIcon(list.get(i).getImage()).getImage()
                 .getScaledInstance(150, 120, Image.SCALE_SMOOTH) );   

                rows[i][6] = image;
                }
                else{
                    rows[i][6] = null;
                }       
            }

            TheModel model = new TheModel(rows, columnName);
            jTable1.setModel(model);
            jTable1.setRowHeight(120);
            jTable1.getColumnModel().getColumn(5).setPreferredWidth(150);
        }




        @SuppressWarnings("unchecked")
        // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
        private void initComponents() {
            ArrayList<Movie> list;
            jScrollPane1 = new javax.swing.JScrollPane();
            jTable1 = new javax.swing.JTable();
            jLabel1 = new javax.swing.JLabel();
            back= new javax.swing.JButton();

            setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

            jTable1.setModel(new javax.swing.table.DefaultTableModel(
                new Object [][] {
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null}
                },
                new String [] {
                    "Title 1", "Title 2", "Title 3", "Title 4"
                }
            ));

            jTable1.addMouseListener(new java.awt.event.MouseAdapter() { // row is clicked
                public void mouseClicked(java.awt.event.MouseEvent evt) {
                    int selectedRowIndex = jTable1.getSelectedRow();
                    int selectedColumnIndex = jTable1.getSelectedColumn();
                    Object selectedObject = (Object) jTable1.getModel().getValueAt(selectedRowIndex, selectedColumnIndex);
                    System.out.println(selectedObject);
                }

            });
            jScrollPane1.setViewportView(jTable1);

            javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
            getContentPane().setLayout(layout);
            layout.setHorizontalGroup(
                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jScrollPane1)
                    .addContainerGap())
                .addGroup(layout.createSequentialGroup()
                    .addGap(228, 228, 228)
                    .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 291, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addContainerGap(261, Short.MAX_VALUE))
            );
            layout.setVerticalGroup(
                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 272, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(18, 18, 18)
                    .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 194, Short.MAX_VALUE)
                    .addContainerGap())         
            );



            pack();
        }// </editor-fold>                                                            


        public static void main(String args[]) {
            try {
                for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                    if ("Nimbus".equals(info.getName())) {
                        javax.swing.UIManager.setLookAndFeel(info.getClassName());
                        break;
                    }
                }
            } catch (ClassNotFoundException ex) {
                java.util.logging.Logger.getLogger(viewMovie.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (InstantiationException ex) {
                java.util.logging.Logger.getLogger(viewMovie.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (IllegalAccessException ex) {
                java.util.logging.Logger.getLogger(viewMovie.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (javax.swing.UnsupportedLookAndFeelException ex) {
                java.util.logging.Logger.getLogger(viewMovie.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            }

            java.awt.EventQueue.invokeLater(new Runnable() {
                public void run() {
                    try {
                        new viewMovie().setVisible(true);
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }
            });
        }

        // Variables declaration - do not modify                     
        private javax.swing.JLabel jLabel1;
        private javax.swing.JScrollPane jScrollPane1;
        private javax.swing.JTable jTable1;
        private javax.swing.JButton back;


        // End of variables declaration                   
    }

当我单击一个单元格时，它会显示所有行值，但它只显示单元格值。

Answer 1

一种选择是打印所选行的数据向量：

DefaultTableModel model = (DefaultTableModel)jTable1.getModel();
System.out.println(model.getDataVector().get(selectedRowIndex));

或者您可以一个接一个地打印行的单元格值：

TableModel model = jTable1.getModel();
for(int i = 0; i < model.getColumnCount(); i++){
    if(i > 0){
        System.out.println(", ");
    }
    System.out.println(model.getValueAt(selectedRowIndex, selectedColumnIndex));
}
System.out.println();

Answer 2

不是答案（JHead已经为您提供了示例代码），只是一个很长的评论。

点击行时

无论用户是使用鼠标还是键盘选择行，都应设计合适的GUI。

所以你应该使用ListSelectionListener。阅读How to Write a ListSelectionListener上Swing教程中的部分以获取更多信息和示例。本教程使用JList，但JTable的概念也相同。

另外，如果选择了多行，该怎么办？

我希望它显示所有选定的行值。

有什么意义？所有数据都已显示在表格中。

获取JTable中的选定行

2 个答案: