java swing tableModel添加行修改行删除行

java从入门到精髓 - Swing表格JTable利用tableModel添加行修改行删除行 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; //维护表格 public class JTableDefaultTableModelTest extends JFrame{ private DefaultTableModel tableModel; //表格模型对象 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"}}; //数据 tableModel = new DefaultTableModel(tableVales,columnNames); table = new JTable(tableModel); JScrollPane scrollPane = new JScrollPane(table); //支持滚动 getContentPane().add(scrollPane,BorderLayout.CENTER); //jdk1.6 //排序: //table.setRowSorter(new TableRowSorter(tableModel)); table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); //单选 table.addMouseListener(new MouseAdapter(){ //鼠标事件 public void mouseClicked(MouseEvent e){ int selectedRow = table.getSelectedRow(); //获得选中行索引 Object oa = tableModel.getValueAt(selectedRow, 0); Object ob = tableModel.getValueAt(selectedRow, 1); aTextField.setText(oa.toString()); //给文本框赋值 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"); //添加按钮 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; //行数加上1 aTextField.setText("A"+rowCount); bTextField.setText("B"+rowCount); } }); panel.add(addButton); final JButton updateButton = new JButton("修改"); //修改按钮 updateButton.addActionListener(new ActionListener(){//添加事件 public void actionPerformed(ActionEvent e){ int selectedRow = table.getSelectedRow();//获得选中行的索引 if(selectedRow!= -1) //是否存在选中行 { //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("删除"); delButton.addActionListener(new ActionListener(){//添加事件 public void actionPerformed(ActionEvent e){ int selectedRow = table.getSelectedRow();//获得选中行的索引 if(selectedRow!=-1) //存在选中行 { tableModel.removeRow(selectedRow); //删除行 } } }); panel.add(delButton); } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub JTableDefaultTableModelTest jTableDefaultTableModelTest = new JTableDefaultTableModelTest(); jTableDefaultTableModelTest.setVisible(true); } }