JTable的实用小例子

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。

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; 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------------------------------------");  } } 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);    }   }  }  public boolean isCellEditable(int rowIndex, int columnIndex) {   if (columnIndex == 0) {    return false;   }   return true;  }  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);  }  public Class getColumnClass(int col) {   return getValueAt(0, col).getClass();  } }