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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumnModel;
/**
* JTable的实用小例子
* @author 五斗米 <如转载请保留作者和出处>
* @blog http://blog.csdn.net/mq612
*/
public class Test {
private JFrame frame = null;
private JTable table = null;
private Table_Model model = null;
private JScrollPane s_pan = null;
private JButton button_1 = null, button_2 = null, button_3 = null;
private JPanel pane = null;
public Test() {
frame = new JFrame("JTableTest");
pane = new JPanel();
button_1 = new JButton("清除数据");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
removeData();
}
});
button_2 = new JButton("添加数据");
button_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addData();
}
});
button_3 = new JButton("保存数据");
button_3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveData();
}
});
pane.add(button_1);
pane.add(button_2);
pane.add(button_3);
model = new Table_Model(20);
table = new JTable(model);
table.setBackground(Color.white);
String[] age = { "16", "17", "18", "19", "20", "21", "22" };
JComboBox com = new JComboBox(age);
TableColumnModel tcm = table.getColumnModel();
tcm.getColumn(3).setCellEditor(new DefaultCellEditor(com));
tcm.getColumn(0).setPreferredWidth(50);
tcm.getColumn(1).setPreferredWidth(100);
tcm.getColumn(2).setPreferredWidth(50);
s_pan = new JScrollPane(table);
frame.getContentPane().add(s_pan, BorderLayout.CENTER);
frame.getContentPane().add(pane, BorderLayout.NORTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 200);
frame.setVisible(true);
}
private void addData() {
model.addRow("李逵", true, "19");
table.updateUI();
}
private void removeData() {
model.removeRows(0, model.getRowCount());
table.updateUI();
}
// 保存数据，暂时是将数据从控制台显示出来
private void saveData() {
int col = model.getColumnCount();
int row = model.getRowCount();
for (int i = 0; i < col; i++) {
System.out.print(model.getColumnName(i) + "/t");
}
System.out.print("/r/n");
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
System.out.print(model.getValueAt(i, j) + "/t");
}
System.out.print("/r/n");
}
System.out.println("------------------------------------");
}
public static void main(String args[]) {
new Test();
System.out.println("按下保存按钮将会把JTable中的内容显示出来/r/n------------------------------------");
}
}
/**
* TableModel类，继承了AbstractTableModel
* @author 五斗米
*
*/
class Table_Model extends AbstractTableModel {
private static final long serialVersionUID = -7495940408592595397L;
private Vector content = null;
private String[] title_name = { "ID", "姓名", "性别", "年龄" };
public Table_Model() {
content = new Vector();
}
public Table_Model(int count) {
content = new Vector(count);
}
public void addRow(String name, boolean sex, String age) {
Vector v = new Vector(4);
v.add(0, new Integer(content.size()));
v.add(1, name);
v.add(2, new Boolean(sex));
v.add(3, age);
content.add(v);
}
public void removeRow(int row) {
content.remove(row);
}
public void removeRows(int row, int count) {
for (int i = 0; i < count; i++) {
if (content.size() > row) {
content.remove(row);
}
}
}
/**
* 让表格中某些值可修改，但需要setValueAt(Object value, int row, int col)方法配合才能使修改生效
*/
public boolean isCellEditable(int rowIndex, int columnIndex) {
if (columnIndex == 0) {
return false;
}
return true;
}
/**
* 使修改的内容生效
*/
public void setValueAt(Object value, int row, int col) {
((Vector) content.get(row)).remove(col);
((Vector) content.get(row)).add(col, value);
this.fireTableCellUpdated(row, col);
}
public String getColumnName(int col) {
return title_name[col];
}
public int getColumnCount() {
return title_name.length;
}
public int getRowCount() {
return content.size();
}
public Object getValueAt(int row, int col) {
return ((Vector) content.get(row)).get(col);
}
/**
* 返回数据类型
*/
public Class getColumnClass(int col) {
return getValueAt(0, col).getClass();
}
}
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