我很难让它工作，有三个表试图从所有JTable（三个表）中获取所有列值，方法是单击“读取所有值”按钮。
当我使用 Vector data = tableModel.getDataVector（）; 时，只返回上次启动的表的所有列值。
请给我指示，谢谢。
CODE：
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
import javax.swing.table.DefaultTableModel;
public class readAllJTableItem {
private JFrame frame;
private static JTextArea textAreaSD;
private static JTextArea textAreaPI;
private static JTextArea textAreaVL;
private TitledBorder textAreaTitleBorder = new TitledBorder(new EtchedBorder(), "Item(s)");
private static JCheckBox checkBoxTypeOne;
private static JCheckBox checkBoxTypeTwo;
private static JCheckBox checkBoxTypeThree;
//Table items
private JScrollPane scrollTableSD;
private JScrollPane scrollTablePI;
private JScrollPane scrollTableVL;
private JTable itemsTableSD;
private JTable itemsTablePI;
private JTable itemsTableVL;
private DefaultTableModel tableModel;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
readAllJTableItem window = new readAllJTableItem();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public readAllJTableItem() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 872, 587);
frame.getContentPane().setLayout(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final ArrayList<String> addItems = new ArrayList<String>();
final int stedCntLpt_1[] = {0,1,2,3,4,5,6,7,8,9,10,11}; //total = 12
final int stedCntLpt_2[] = {0,1,2,3,4,5,6,7,8,9,10,12,13}; //total = 13
final int stedCntLpt_3[] = {0,1,3,7,14,15,16,17}; //total = 8
//Type-1 (0-11)
addItems.add(0, "Column-01"); addItems.add(1, "Column-02"); addItems.add(2, "Column-03"); addItems.add(3, "Column-04");
addItems.add(4, "Column-05"); addItems.add(5, "Column-06"); addItems.add(6, "Column-07"); addItems.add(7, "Column-08");
addItems.add(8, "Column-09"); addItems.add(9, "Column-10"); addItems.add(10, "Column-11"); addItems.add(11, "Column-12");
addItems.add(12, "Column-13"); addItems.add(13, "Column-14");
addItems.add(14, "Column-15"); addItems.add(15, "Column-16"); addItems.add(16, "Column-17"); addItems.add(17, "Column-18");
//1
JButton btnNewButton_1 = new JButton("Read All Values");
btnNewButton_1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
//if (checkBoxTypeOne.isSelected() == true){
//This is were you get the cell values of each JTable
//@camickr's code...
DefaultTableModel model1 = (DefaultTableModel)itemsTableSD.getModel();
Vector data1 = model1.getDataVector();
System.out.println(data1.toString());
//}
}
});
btnNewButton_1.setBounds(281, 487, 125, 23);
frame.getContentPane().add(btnNewButton_1);
checkBoxTypeOne = new JCheckBox("SD");
checkBoxTypeOne.setBounds(685, 196, 87, 23);
frame.getContentPane().add(checkBoxTypeOne);
checkBoxTypeOne.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED) {//checkbox has been selected
callRenderTable(textAreaSD, scrollTableSD, itemsTableSD, addItems, stedCntLpt_1, 3, 12);
} else {
textAreaSD.setVisible(true);
scrollTableSD.setVisible(false);
};
}
});
checkBoxTypeTwo = new JCheckBox("PI");
checkBoxTypeTwo.setBounds(682, 288, 44, 23);
frame.getContentPane().add(checkBoxTypeTwo);
checkBoxTypeTwo.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED) {
callRenderTable(textAreaPI, scrollTablePI, itemsTablePI, addItems, stedCntLpt_2, 4, 13);
} else {
textAreaPI.setVisible(true);
scrollTablePI.setVisible(false);
};
}
});
checkBoxTypeThree = new JCheckBox("VL");
checkBoxTypeThree.setBounds(685, 374, 55, 23);
frame.getContentPane().add(checkBoxTypeThree);
checkBoxTypeThree.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED) {
callRenderTable(textAreaVL, scrollTableVL, itemsTableVL, addItems, stedCntLpt_3, 2, 8);
} else {
textAreaVL.setVisible(true);
scrollTableVL.setVisible(false);
};
}
});
textAreaSD = new JTextArea();
textAreaSD.setBounds(43, 166, 608, 87);
textAreaSD.setBorder(textAreaTitleBorder);
textAreaSD.setBackground(new Color(240,240,240));
textAreaSD.setEditable(false);
textAreaSD.setVisible(true);
frame.getContentPane().add(textAreaSD);
scrollTableSD = new JScrollPane();
scrollTableSD.setBounds(43, 166, 608, 87);
scrollTableSD.setVisible(false);
frame.getContentPane().add(scrollTableSD);
textAreaPI = new JTextArea();
textAreaPI.setBounds(43, 256, 608, 103);
textAreaPI.setBorder(textAreaTitleBorder);
textAreaPI.setBackground(new Color(240,240,240));
textAreaPI.setEditable(false);
textAreaPI.setVisible(true);
frame.getContentPane().add(textAreaPI);
scrollTablePI = new JScrollPane();
scrollTablePI.setBounds(43, 256, 608, 103);
scrollTablePI.setVisible(false);
frame.getContentPane().add(scrollTablePI);
textAreaVL = new JTextArea();
textAreaVL.setBounds(43, 362, 608, 71);
textAreaVL.setBorder(textAreaTitleBorder);
textAreaVL.setBackground(new Color(240,240,240));
textAreaVL.setEditable(false);
textAreaVL.setVisible(true);
frame.getContentPane().add(textAreaVL);
scrollTableVL = new JScrollPane();
scrollTableVL.setBounds(43, 362, 608, 71);
scrollTableVL.setVisible(false);
frame.getContentPane().add(scrollTableVL);
itemsTableSD = new JTable();
scrollTableSD.setViewportView(itemsTableSD);
itemsTablePI = new JTable();
scrollTablePI.setViewportView(itemsTablePI);
itemsTableVL = new JTable();
scrollTableVL.setViewportView(itemsTableVL);
}
private void callRenderTable(JTextArea textArea, JScrollPane scrollTable, JTable itemsTable, ArrayList<String> addItems, int itemIndexNo[], int loopCount, int totCount){
textArea.setVisible(false);
scrollTable.setVisible(true);
//DefaultTableModel tableModel = new DefaultTableModel(){
tableModel = new DefaultTableModel(){
public Class<?> getColumnClass(int column){
switch(column){
case 0:
return String.class;
case 1:
return Boolean.class;
case 2:
return String.class;
case 3:
return Boolean.class;
case 4:
return String.class;
case 5:
return Boolean.class;
default:
return String.class;
}
}
int row = 0;
int column = 1;
boolean[] canEdit = new boolean[]{false, true, false, true, false, true};
@Override
public boolean isCellEditable(int row, int column) {
if (row == 0 && column == 1){
return false;}
return canEdit[column];
}
};
//Assign the model to table
itemsTable.setModel(tableModel);
tableModel.addColumn("Items");
tableModel.addColumn("Select");
tableModel.addColumn("Items");
tableModel.addColumn("Select");
tableModel.addColumn("Items");
tableModel.addColumn("Select");
//The row
int indIncr = 0;
for(int i = 0; i <= loopCount; i++){
tableModel.addRow(new Object[0]);
for(int j = 0; j <= 2; j++){
if (j == 0 && indIncr < totCount){
tableModel.setValueAt(addItems.get(itemIndexNo[indIncr]), i, j);
tableModel.setValueAt(true, i, j+1);
indIncr = indIncr + 1;}
if (j == 1 && indIncr < totCount ){
tableModel.setValueAt(addItems.get(itemIndexNo[indIncr]), i, j+1);
tableModel.setValueAt(true, i, j+2);
indIncr = indIncr + 1;}
if (j == 2 && indIncr < totCount){
tableModel.setValueAt(addItems.get(itemIndexNo[indIncr]), i, j+2);
tableModel.setValueAt(true, i, j+3);
indIncr = indIncr + 1;}
}
}
}
}
答案 0 :(得分：4)
您只有一个变量“tableModel”，那么您如何期望该变量引用3个表模型？
你有3个变量来引用你的3个表中的每一个。
所以你需要像：
这样的代码DefaultTableModel model1 = (DefaultTableModel)itsTableSD.getModel();
DefaultTableModel model2 = (DefaultTableModel)itsTablePI.getModel();
DefaultTableModel model3 = (DefaultTableModel)itsTableVL.getModel();
现在，您可以在每个表模型上使用getDataVector（）方法。
另外，摆脱静态变量。通常，变量不应该是静态的。