java從入門(mén)到精髓 - Swing表格JTable利用tableModel添加行修改行刪除行
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableModel;
//維護表格
public class JTableDefaultTableModelTest extends JFrame{
private DefaultTableModel tableModel; //表格模型對象
private JTable table;
private JTextField aTextField;
private JTextField bTextField;
public JTableDefaultTableModelTest()
{
super();
setTitle("表格");
setBounds(100,100,500,400);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[] columnNames = {"A","B"}; //列名
String [][]tableVales={{"A1","B1"},{"A2","B2"},{"A3","B3"},{"A4","B4"},{"A5","B5"}}; //數據
tableModel = new DefaultTableModel(tableVales,columnNames);
table = new JTable(tableModel);
JScrollPane scrollPane = new JScrollPane(table); //支持滾動(dòng)
getContentPane().add(scrollPane,BorderLayout.CENTER);
//jdk1.6
//排序:
//table.setRowSorter(new TableRowSorter(tableModel));
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); //單選
table.addMouseListener(new MouseAdapter(){ //鼠標事件
public void mouseClicked(MouseEvent e){
int selectedRow = table.getSelectedRow(); //獲得選中行索引
Object oa = tableModel.getValueAt(selectedRow, 0);
Object ob = tableModel.getValueAt(selectedRow, 1);
aTextField.setText(oa.toString()); //給文本框賦值
bTextField.setText(ob.toString());
}
});
scrollPane.setViewportView(table);
final JPanel panel = new JPanel();
getContentPane().add(panel,BorderLayout.SOUTH);
panel.add(new JLabel("A: "));
aTextField = new JTextField("A4",10);
panel.add(aTextField);
panel.add(new JLabel("B: "));
bTextField = new JTextField("B4",10);
panel.add(bTextField);
final JButton addButton = new JButton("添加"); //添加按鈕
addButton.addActionListener(new ActionListener(){//添加事件
public void actionPerformed(ActionEvent e){
String []rowValues = {aTextField.getText(),bTextField.getText()};
tableModel.addRow(rowValues); //添加一行
int rowCount = table.getRowCount() +1; //行數加上1
aTextField.setText("A"+rowCount);
bTextField.setText("B"+rowCount);
}
});
panel.add(addButton);
final JButton updateButton = new JButton("修改"); //修改按鈕
updateButton.addActionListener(new ActionListener(){//添加事件
public void actionPerformed(ActionEvent e){
int selectedRow = table.getSelectedRow();//獲得選中行的索引
if(selectedRow!= -1) //是否存在選中行
{
//修改指定的值：
tableModel.setValueAt(aTextField.getText(), selectedRow, 0);
tableModel.setValueAt(bTextField.getText(), selectedRow, 1);
//table.setValueAt(arg0, arg1, arg2)
}
}
});
panel.add(updateButton);
final JButton delButton = new JButton("刪除");
delButton.addActionListener(new ActionListener(){//添加事件
public void actionPerformed(ActionEvent e){
int selectedRow = table.getSelectedRow();//獲得選中行的索引
if(selectedRow!=-1) //存在選中行
{
tableModel.removeRow(selectedRow); //刪除行
}
}
});
panel.add(delButton);
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JTableDefaultTableModelTest jTableDefaultTableModelTest = new JTableDefaultTableModelTest();
jTableDefaultTableModelTest.setVisible(true);
}
}
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