java 界面swing之表格
package othertest;import java.awt.BorderLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.table.AbstractTableModel;public class SetValueAtToSetValue extends JFrame {public SetValueAtToSetValue() {final AbstractTableModel model = new MyModel();final JTable table = new JTable(model);getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);model.setValueAt(new Integer(1), 0, 0);JButton button = new JButton("Increment selected cell");getContentPane().add(button, BorderLayout.SOUTH);button.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {int row = table.getSelectedRow(); // 得到选中的行，-1代表没有选中任何行if (row >= 0) { // 改变单元格内容// 将视图中位于 table.getSelectedColumn() 的列索引映射到表模型中的列索引。int column = table.convertColumnIndexToModel(table.getSelectedColumn());int currentValue = ((Integer) model.getValueAt(row, column)).intValue();model.setValueAt(new Integer(currentValue + 1), row,column); // 模型改变，表格内容自动变} else {// 将每个单元格归零int column = model.getColumnCount();int rows = model.getRowCount();for (int i = 0; i < rows; i++) {for (int j = 0; j < column; j++) {model.setValueAt(new Integer(0), i, j);}}}}});// 调整此窗口的大小，以适合其子组件的首选大小和布局。// 如果该窗口和/或其所有者还不可显示，则在计算首选大小之前都将变得可显示。在计算首选大小之后，将会验证该窗口。pack();}public static void main(String arg[]) {SetValueAtToSetValue ex2 = new SetValueAtToSetValue();ex2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);ex2.setVisible(true);}}class MyModel extends AbstractTableModel { // 自定义表格模型private int[][] table = { new int[3], new int[3], new int[3] };public MyModel() {for (int i = 0; i < 3; i++) {for (int j = 0; j < 3; j++) {table[i][j] = i + j;}}}public int getColumnCount() {return table.length;}public int getRowCount() {return table[0].length;}public Object getValueAt(int r, int c) {return new Integer(table[r][c]);}public void setValueAt(Object obj, int r, int c) {table[r][c] = ((Integer) obj).intValue();fireTableCellUpdated(r, c); // 通知所有侦听器，已更新 [row, column] 处的单元格值。}}package othertest;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) { //返回列名，即表头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();}}