一个不错的Jtable实例

importjava.awt.BorderLayout;

importjava.awt.Color;

importjava.awt.event.ActionEvent;

importjava.awt.event.ActionListener;

importjava.util.Vector;

 

importjavax.swing.DefaultCellEditor;

importjavax.swing.JButton;

importjavax.swing.JComboBox;

importjavax.swing.JFrame;

importjavax.swing.JPanel;

importjavax.swing.JScrollPane;

importjavax.swing.JTable;

importjavax.swing.table.AbstractTableModel;

importjavax.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

*/

 

publicclassTest {

    privateJFrame frame = null;

 

    privateJTable table = null;

 

    privateTable_Model model = null;

 

    privateJScrollPane s_pan = null;

 

    privateJButton button_1 = null, button_2 = null, button_3 = null;

 

    privateJPanel pane = null;

 

    publicTest() {

        frame = newJFrame("JTableTest");

        pane = newJPanel();

        button_1 = newJButton("清除数据");

        button_1.addActionListener(newActionListener() {

            publicvoidactionPerformed(ActionEvent e) {

                removeData();

            }

        });

        button_2 = newJButton("添加数据");

        button_2.addActionListener(newActionListener() {

            publicvoidactionPerformed(ActionEvent e) {

                addData();

            }

        });

        button_3 = newJButton("保存数据");

        button_3.addActionListener(newActionListener() {

            publicvoidactionPerformed(ActionEvent e) {

                saveData();

            }

        });

        pane.add(button_1);

        pane.add(button_2);

        pane.add(button_3);

        model = newTable_Model(20);

        table = newJTable(model);

        table.setBackground(Color.white);

        String[] age = { "16","17","18","19","20","21","22"};

        JComboBox com = newJComboBox(age);

        TableColumnModel tcm = table.getColumnModel();

        tcm.getColumn(3).setCellEditor(newDefaultCellEditor(com));

        tcm.getColumn(0).setPreferredWidth(50);

        tcm.getColumn(1).setPreferredWidth(100);

        tcm.getColumn(2).setPreferredWidth(50);

 

        s_pan = newJScrollPane(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);

 

    }

 

    privatevoidaddData() {

        model.addRow("李逵",true,"19");

        table.updateUI();

    }

 

    privatevoidremoveData() {

        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

    privatevoidsaveData() {

        intcol = model.getColumnCount();

        introw = model.getRowCount();

        for(inti = 0; i < col; i++) {

            System.out.print(model.getColumnName(i) + "\t");

        }

        System.out.print("\r\n");

        for(inti = 0; i < row; i++) {

            for(intj = 0; j < col; j++) {

                System.out.print(model.getValueAt(i, j) + "\t");

            }

            System.out.print("\r\n");

        }

        System.out.println("------------------------------------");

    }

 

    publicstaticvoid main(String args[]) {

        newTest();

        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

*

*/

classTable_ModelextendsAbstractTableModel {

 

    privatestaticfinal long serialVersionUID = -7495940408592595397L;

 

    privateVector content = null;

 

    privateString[] title_name = { "ID","姓名","性别","年龄"};

 

    publicTable_Model() {

        content = newVector();

    }

 

    publicTable_Model(intcount) {

        content = newVector(count);

    }

 

    publicvoidaddRow(String name, booleansex, String age) {

        Vector v = newVector(4);

        v.add(0,newInteger(content.size()));

        v.add(1, name);

        v.add(2,newBoolean(sex));

        v.add(3, age);

        content.add(v);

    }

 

    publicvoidremoveRow(introw) {

        content.remove(row);

    }

 

    publicvoidremoveRows(introw,intcount) {

        for(inti = 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

    */

    publicbooleanisCellEditable(introwIndex,intcolumnIndex) {

        if(columnIndex == 0) {

            returnfalse;

        }

        returntrue;

    }

 

    /**

    * 使修改的内容生效

    */

    publicvoidsetValueAt(Object value, introw,intcol) {

        ((Vector) content.get(row)).remove(col);

        ((Vector) content.get(row)).add(col, value);

        this.fireTableCellUpdated(row, col);

    }

 

    publicString getColumnName(intcol) {

        returntitle_name[col];

    }

 

    publicintgetColumnCount() {

        returntitle_name.length;

    }

 

    publicintgetRowCount() {

        returncontent.size();

    }

 

    publicObject getValueAt(introw,intcol) {

        return((Vector) content.get(row)).get(col);

    }

 

    /**

    * 返回数据类型

    */

    publicClass getColumnClass(intcol) {

        returngetValueAt(0, col).getClass();

    }

}