JTable 的密码项

/**
* [PasswordTable.java] 表格密码项示例
*
*
* 创建日期：(2003-9-5)
* @author：ONE_Fox
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class PasswordTable extends JFrame {
//表头信息
private String[] colname = {"姓名","性别","年龄","帐号","密码"};
//表内容
private Object[][] data = {{"张三", new Boolean(true), "18", "Zhang3", "12345"},
{"李四", new Boolean(true), "22", "Li4", "54321"},
{"王五", new Boolean(false), "23", "Wang5", "52052"},
{"啊明", new Boolean(true), "19", "A_ming", "28865"},
{"珊珊", new Boolean(false), "21", "Sam3", "33333"}};
//界面组件----------------------//
private JButton showPassword = new JButton("显示密码");
private JScrollPane scroPanel = new JScrollPane(); //中层滚动面板
private DefaultTableModel model; //列表默认TableModel
private JTable table;
private JTextArea show = new JTextArea(6, 10);
private JScrollPane showPanel = new JScrollPane(show); //底层滚动面板
//-----------------------------------------------------------//
/**
* 构造方法 PasswordTable()
*/
public PasswordTable() {
makeFace(); //界面构建
addListener(); //添加监听
showFace(); //界面显示
}
//-----------------------------------------------------------//
/**
* 方法: 界面构建 makeFace()
*/
private void makeFace() {
JPanel upPanel = new JPanel();
upPanel.add(showPassword);
table = new JTable(model = new DefaultTableModel(data,colname) {
public Class getColumnClass(int column) {
return getValueAt(0, column).getClass();
}
});
//设置密码格编辑器-------------------//
JPasswordField passwordEdit = new JPasswordField();
passwordEdit.setBorder(null);
table.getColumn("密码").setCellEditor(new DefaultCellEditor(passwordEdit));
//设置密码格表现器-------------------//
table.getColumn("密码").setCellRenderer(new DefaultTableCellRenderer() {
//重写 setValue 方法
public void setValue(Object value) {
String password = "";
int wordLong = value.toString().length();
for(int i = 0; i < wordLong; i++)
password += "*";
super.setValue(password);
}
});
scroPanel.getViewport().setBackground(Color.white);
scroPanel.getViewport().add(table);
JPanel downPanel = new JPanel();
downPanel.setLayout(new BorderLayout());
downPanel.add(showPanel);
//总体界面布局------------------------//
getContentPane().add(upPanel, BorderLayout.NORTH);
getContentPane().add(scroPanel, BorderLayout.CENTER);
getContentPane().add(downPanel, BorderLayout.SOUTH);
}
/**
* 方法: 界面显示 showFace()
*/
private void showFace() {
setTitle("JTable 密码格示例");
setSize(500,300);
Toolkit tmpTK = Toolkit.getDefaultToolkit();
Dimension dime = tmpTK.getScreenSize();
setLocation(dime.width2 - 250, dime.height2 - 200);
show();
}
/**
* 方法: 添加事件监听 addListener()
*/
private void addListener() {
//添加窗口关闭事件
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
new JFrame().setVisible(false);
dispose();
System.exit(0);
}
});
//显示密码
showPassword.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
String txt = "张三 >>> " + table.getValueAt(0, 4) + "\n"
+ "李四 >>> " + table.getValueAt(1, 4) + "\n"
+ "王五 >>> " + table.getValueAt(2, 4) + "\n"
+ "啊明 >>> " + table.getValueAt(3, 4) + "\n"
+ "珊珊 >>> " + table.getValueAt(4, 4) + "\n";
show.setText(txt);
}
});
}
//----------------------------------------------------------//
/**
* 程序入口 main(String args[])
*/
public static void main(String args[]) {
//获取设置系统风格-------------------//
try {
String laf = UIManager.getSystemLookAndFeelClassName();
UIManager.setLookAndFeel(laf);
} catch (Exception e) {}
//全局字体设置-----------------------//
Font font1 = new Font("宋体",Font.PLAIN,12);
Font font2 = new Font("宋体",Font.PLAIN,15);
UIManager.put("Button.font",font1);
UIManager.put("Table.font",font1);
UIManager.put("TableHeader.font",font1);
//启动示例--------------------------//
new PasswordTable();
}
}