第一次搞swing，自定义JDialog的例子较少，写下来备忘 ，对JDialog中的文本框进行了验证 package com.chauvet; import java.awt.Component;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.HashMap;
import java.util.Map; import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder; /***
* 定义的Dialog对话框
* @author WXW
*
*/
public class MyDialog extends JDialog implements ActionListener {
private static final long serialVersionUID = 1L; public static void main(String[] args) {
Map<String,String> caipinMap = new HashMap<String,String>();
String yxrsKey = "diyidaocai";
String yxrsVal = "1";
String djjdKey = "dierdaocai";
String djjdVal = "65";
String fqjdKey = "disandaocai";
String fqjdVal = "123";
String abcdKey = "disidaocai";
String abcdVal = "7";
caipinMap.put(yxrsKey,yxrsVal);
caipinMap.put(djjdKey,djjdVal);
caipinMap.put(fqjdKey,fqjdVal);
caipinMap.put(abcdKey,abcdVal); JFrame alertFrame = new JFrame();
MyDialog d =new MyDialog(alertFrame, true,caipinMap,360,320);
d.setVisible(true);
} JButton okBtn = new JButton("确定");
JButton cancelBtn = new JButton("关闭"); int x = 50;
int y = 30;
int width = 65;
int height = 20; /***
* 自定义 Dialog
* @param parent
* 父Frame
* @param modal
* 是否模式窗体
* @param caipinMap
* 数据Map
* @param windowWidth
* 宽度 需根据数据计算高度
* @param windowHeight
* 高度 默认320即可
*/
public MyDialog(JFrame parent, boolean modal,Map<String,String> caipinMap,int windowWidth,int windowHeight) {
super(parent,modal);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); //得到屏幕的尺寸
int screenWidth = screenSize.width;
int screenHeight = screenSize.height;
JButton []addBtns = new JButton[caipinMap.keySet().size()];
JButton []mutBtns = new JButton[caipinMap.keySet().size()];
int btnIndex = 0;
setTitle("test");
setSize(windowWidth,windowHeight);
setLayout(null);
setResizable(false);
// this.setUndecorated(true);
// setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
setLocation((screenWidth - this.getWidth()) / 2, (screenHeight - this.getHeight())/2); for (String strKey : caipinMap.keySet()) {
JLabel cpNameLBL = new JLabel(strKey+":");
add(cpNameLBL);
cpNameLBL.setBounds(x,y,width,height);
cpNameLBL.setName("lbl"+strKey); JLabel noticeLbl = new JLabel();
noticeLbl.setName("lbl"+strKey);
noticeLbl.setBounds(x+120,y,width,height); JTextField cpCountJTF = new JTextField(caipinMap.get(strKey));
add(cpCountJTF);
cpCountJTF.setName("jtf"+strKey);
cpCountJTF.setBounds(x+160,y,width,height);
cpCountJTF.requestFocus();
// cpCountJTF.setDocument(new NumberLenghtLimitedDmt(3));
cpCountJTF.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
JTextField jtf = (JTextField) e.getSource();
String selectVal = jtf.getSelectedText();
int keyChar = e.getKeyChar();
String val = jtf.getText();
if(null == val || val.trim().length() <= 0 || val.replaceAll("0", "").length() <= 0){ //文本框中没有值时默认为1
jtf.setText("1");
e.consume();
return;
} int valLength = val.length();
if((null != selectVal && selectVal.length() == valLength) && keyChar == KeyEvent.VK_0){
jtf.setText("1");
e.consume();
return;
} if ((keyChar >= KeyEvent.VK_0 && keyChar <= KeyEvent.VK_9)) { // 输入的是数字
if(valLength > 2){ // 长度大于2
if(keyChar != KeyEvent.VK_BACK_SPACE && !(null != selectVal && selectVal.trim().length() > 0) ){ // 按下的不是backspace键
e.consume();
}
}
return;
}
e.consume(); // 不是数字键
// JOptionPane.showMessageDialog(null, "非数字");
}
@Override
public void keyReleased(KeyEvent e) {}
@Override
public void keyPressed(KeyEvent e) {}
}); addBtns[btnIndex] = new JButton("+");
addBtns[btnIndex].setName("btn"+strKey);
addBtns[btnIndex].setBounds(x+260,y,width-40,height);
addBtns[btnIndex].setBorder(new EmptyBorder(5,5,5,5));
addBtns[btnIndex].addActionListener(this); mutBtns[btnIndex] = new JButton("-");
mutBtns[btnIndex].setName("btn"+strKey);
mutBtns[btnIndex].setBounds(x+80,y,width-40,height);
mutBtns[btnIndex].setBorder(new EmptyBorder(5,5,5,5));
mutBtns[btnIndex].addActionListener(this); add(addBtns[btnIndex]);
add(mutBtns[btnIndex]);
y = y + 30;
btnIndex ++;
} add(okBtn);
add(cancelBtn);
okBtn.setBounds(windowWidth - 190, windowHeight - 80, 60, 25);
okBtn.setName("ok");
cancelBtn.setBounds(windowWidth - 120, windowHeight - 80, 60, 25);
cancelBtn.setName("cancel");
okBtn.addActionListener(this);
cancelBtn.addActionListener(this);
} public void actionPerformed(ActionEvent e) {
Component[] cmp = getContentPane().getComponents();
JButton btn = (JButton)e.getSource();
String jtfKey = ""+btn.getName().replaceAll("btn", "");
if(null != jtfKey && !jtfKey.equals("ok") && !jtfKey.equals("cancel") ){
String btnText = btn.getText();
for (Component c : cmp) {
if(c instanceof JTextField){
JTextField tf = (JTextField) c;
if(c.getName().equals("jtf"+jtfKey)){ int val = Integer.parseInt(tf.getText());
if(btnText.equals("+")){
if(val < 999){
val = val + 1;
}
}else{
val = val - 1;
if(val <= 0){
val = 1;
}
}
tf.setText(String.valueOf(val));
}
}
}
return;
} if(e.getSource()==okBtn){
System.out.println("OK");
for (Component c : cmp) {
if(c instanceof JTextField){
JTextField js = (JTextField) c;
System.out.println(js.getName().replaceAll("jtf", "")+":"+js.getText());
}
}
return;
}
if(e.getSource()==cancelBtn){
System.out.println("cancel");
dispose();
return;
}
} }