JTable的实用小例子，JTable实用例子,这是五斗米很早以前写的例

JTable的实用小例子，JTable实用例子,这是五斗米很早以前写的例

这是五斗米很早以前写的例子，最近发现论坛中很多朋友问关于JTable的问题，现整理一下发上来。JTable的实用小例子，有添加、删除数据，在JTable中加入swing其它组件，除0列外其它列可编辑。

Test.java

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(); }}