Question

如何在JAVA消息弹出框中添加图片的问题

我在用JAVA进行编程的时候遇到了一个问题：使用一下代码时可产生一个消息框：JOptionPane.showMessageDialog(null,"您获得了一等奖！");
但是如何在这个弹出窗口中添加图片或者随机添加一些图片并显示出来呢,请高手指教一下，我会把积分全送上

Answer 1

这是我做的一网吧管理系统中的一个类,我所有的弹出对话框都用的这个
是初学JAVA编的,希望对你有所帮助

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.border.*;

public class WarningDialog extends MainFrame {
JDialog warning;
Font f=new Font("Frame",Font.PLAIN,16);
Font fb=new Font("Frame",Font.PLAIN,12);
JFrame frame=null;
Container c;
Cursor cursor=new Cursor(Cursor.HAND_CURSOR);
Border low=BorderFactory.createLoweredBevelBorder();
//JButton btn_normal;
//JButton btn_card;
JButton btn;
JButton btn_cancel;
JLabel lbl_message;

final JLabel lbl_icon=new JLabel();
final JTextField _id=new JTextField();
final JComboBox box_type=new JComboBox();
final StringBuffer cptid=new StringBuffer("");

public WarningDialog(JFrame frm,String str) {
this.frame=frm;
warning=new JDialog(frm,"警告信息",true);

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.WARNING_DIALOG);
c=warning.getContentPane();
c.setLayout(null);
ImageIcon icon_lbl=new ImageIcon("e:\\netbar\\icon\\0008.gif");
ImageIcon icon_btn=new ImageIcon("e:\\netbar\\icon\\a0007.gif");
lbl_message=new JLabel(str);
lbl_icon.setIcon(icon_lbl);
btn=new JButton("");
btn.setFont(new Font("Frame",Font.PLAIN,12));
btn.setIcon(icon_btn);
btn.setCursor(cursor);
btn.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
warning.dispose();
}
}
);

lbl_message.setFont(f);
lbl_message.setBounds(new Rectangle(105,25,160,40));
lbl_icon.setBounds(50,25,40,40);
btn.setBounds(new Rectangle(115,75,70,33));
c.add(lbl_message);
c.add(lbl_icon);
c.add(btn);
warning.setBounds((1024-300)/2,150,300,150);
warning.show();
}
public WarningDialog(String str){
//this.frame=frm;
warning=new JDialog(this,"确认信息",true);

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.QUESTION_DIALOG);
c=warning.getContentPane();
c.setLayout(null);
ImageIcon icon_lbl=new ImageIcon("e:\\netbar\\icon\\qq0026.gif");
ImageIcon icon_btn=new ImageIcon("e:\\netbar\\icon\\0005.gif");
ImageIcon icon_cancel=new ImageIcon("e:\\netbar\\icon\\0007.gif");
lbl_message=new JLabel(str);
lbl_icon.setIcon(icon_lbl);

btn=new JButton("");
btn.setIcon(icon_btn);
btn.setCursor(cursor);

btn.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
System.exit(0);
}
}
);
btn_cancel=new JButton("");
btn_cancel.setIcon(icon_cancel);
btn_cancel.setCursor(cursor);

btn_cancel.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent f){
warning.dispose();
}
}
);
lbl_message.setFont(f);
lbl_message.setBounds(new Rectangle(105,25,120,40));
lbl_icon.setBounds(50,25,40,40);
btn.setBounds(new Rectangle(85,75,70,30));
btn_cancel.setBounds(new Rectangle(160,75,70,30));
c.add(lbl_message);
c.add(lbl_icon);
c.add(btn);
c.add(btn_cancel);
warning.setBounds((1024-300)/2,150,300,150);
warning.show();
}
public WarningDialog(JFrame frm,String cardid,String cpt_id,String []type){
this.frame=frm;
warning = new JDialog(this, "上机对话框", true);
cptid.append(cpt_id);

String []tp=new String[2];
tp=type;

JLabel lbl_type = new JLabel("上机类型:");
box_type.addItem(tp[0]);
box_type.addItem(tp[1]);
JLabel lbl_card=new JLabel("输入卡号");
_id.setText(cardid);
_id.setBorder(low);

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.COLOR_CHOOSER_DIALOG);
c = warning.getContentPane();
this.getContentPane().setLayout(null);
Icon icon_lbl = new ImageIcon("e:\\netbar\\icon\\0004.gif");
Icon icon_normal = new ImageIcon("e:\\netbar\\icon\\073115413830268.gif");
Icon icon_cancel=new ImageIcon("e:\\netbar\\icon\\073115414187388.gif");

lbl_icon.setIcon(icon_lbl);
box_type.addItemListener(
new ItemListener(){
public void itemStateChanged(ItemEvent e){
if(box_type.getSelectedItem().equals("会员上机")){
_id.setEnabled(true);
_id.setText("");
_id.requestFocus(true);
lbl_icon.setVisible(true);
}else{
_id.setEnabled(false);
_id.setText("noCard");
lbl_icon.setVisible(false);
}
}
}
);

lbl_type.setFont(fb);
lbl_type.setBounds(new Rectangle(30,20,100,30));

box_type.setFont(fb);
box_type.setBounds(new Rectangle(110,20,100,30));

lbl_card.setFont(fb);
lbl_card.setBounds(new Rectangle(30,60,100,30));

_id.setText(cardid);
_id.selectAll();
_id.setBounds(new Rectangle(110,60,100,30));

btn=new JButton("确认上机");
btn.setFont(fb);
btn.setIcon(icon_normal);
btn.setCursor(cursor);

//btn_card=new JButton("会员上机");
//btn_card.setFont(fb);
//btn_card.setIcon(icon_card);
//btn_card.setCursor(cursor);

btn_cancel=new JButton("取消");
btn_cancel.setFont(fb);
btn_cancel.setIcon(icon_cancel);
btn_cancel.setCursor(cursor);

lbl_icon.setBounds(new Rectangle(215,60,50,30));

btn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
Connecter con = new Connecter();
if(box_type.getSelectedItem().equals("普通上机")){
con.updateRecord(cptid.toString());
dispose();
}else if(con.isCard(_id.getText())){
con.updateRecord(cptid.toString(),_id.getText());
dispose();
}else{
new WarningDialog(frame,"该会员卡不存在");
}
}
}
);

btn_cancel.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent f) {
dispose();
}
}
);

btn.setBounds(new Rectangle(30,110,110,30));
btn_cancel.setBounds(new Rectangle(155,110,110,30));
this.getContentPane().add(btn);
this.getContentPane().add(btn_cancel);
this.getContentPane().add(lbl_type);
this.getContentPane().add(box_type);
this.getContentPane().add(lbl_card);
this.getContentPane().add(_id);
this.getContentPane().add(lbl_icon);
_id.setEnabled(false);
lbl_icon.setVisible(false);

this.setBounds(200,150, 295, 200);
this.show();
}
public WarningDialog(JFrame frm,String cardid,String cpt_id,float[][]pay){
this.frame=frm;
warning = new JDialog(this, "下机对话框", true);
final Connecter con1 = new Connecter();
final String cid=cardid;
final String cptid=cpt_id;
final float [][]payinfo=pay;

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.COLOR_CHOOSER_DIALOG);
c = warning.getContentPane();
this.getContentPane().setLayout(null);

Icon icon_lbl = new ImageIcon("e:\\netbar\\icon\\0004.gif");
Icon icon_normal = new ImageIcon("e:\\netbar\\icon\\073115413830268.gif");
Icon icon_card = new ImageIcon("e:\\netbar\\icon\\073115413944451.gif");
Icon icon_cancel=new ImageIcon("e:\\netbar\\icon\\073115414187388.gif");

btn=new JButton("确认下机");
btn.setFont(fb);
btn.setIcon(icon_normal);
btn.setCursor(cursor);

btn_cancel=new JButton("取消");
btn_cancel.setFont(fb);
btn_cancel.setIcon(icon_cancel);
btn_cancel.setCursor(cursor);

JLabel lbl_type = new JLabel("请选择您的结帐方式:");

final JRadioButton rb_cash=new JRadioButton("现金支付",true);
final JRadioButton rb_card=new JRadioButton("会员卡支付",false);
ButtonGroup group=new ButtonGroup();
group.add(rb_cash);
group.add(rb_card);

lbl_type.setFont(fb);

lbl_type.setBounds(new Rectangle(30,55,150,30));
btn.setBounds(new Rectangle(30,120,110,30));
btn_cancel.setBounds(new Rectangle(155,120,110,30));
rb_cash.setBounds(30,85,110,30);
rb_card.setBounds(145,85,110,30);
rb_cash.setFont(fb);
rb_card.setFont(fb);

float sum[] = new float[4];
if(cid.equals("noCard")){
rb_card.setEnabled(false);
sum=con1.handInTwo(payinfo,cptid);
String str1=String.valueOf(sum[1]);
String str2=str1.substring(0,str1.indexOf(".")+2);
lbl_message=new JLabel("您的上机费用为:"+str2+"元,"+"其中附加费为:"+String.valueOf(sum[3])+"元.");
}else{
sum=con1.handInCard(payinfo,cptid,cid);
String str1=String.valueOf(sum[1]);
String str2=str1.substring(0,str1.indexOf(".")+2);
lbl_message=new JLabel("您的上机费用为:"+str2+"元,"+"其中附加费为:"+String.valueOf(sum[3])+"元.");
}
lbl_message.setFont(fb);
lbl_message.setBounds(new Rectangle(30,20,235,30));

btn.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent h){
float rst[] = new float[4];
if(rb_cash.isSelected()){
rst=con1.handInTwo(payinfo,cptid);
dispose();
}else if(rb_card.isSelected()){
rst=con1.handInCard(payinfo,cptid,cid);
dispose();
}
}
}
);

btn_cancel.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent i){
dispose();
}
}
);

this.getContentPane().add(lbl_message);
this.getContentPane().add(lbl_type);
this.getContentPane().add(btn);
this.getContentPane().add(btn_cancel);
this.getContentPane().add(rb_cash);
this.getContentPane().add(rb_card);

this.setBounds(200,150, 295, 200);
this.show();
}
public WarningDialog(String str,boolean flag){
//this.frame=frm;
warning=new JDialog(this,"锁屏窗口",flag);

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.QUESTION_DIALOG);
c=warning.getContentPane();
c.setLayout(null);
ImageIcon icon_lbl=new ImageIcon("e:\\netbar\\icon\\0031.gif");
lbl_icon.setIcon(icon_lbl);

_id.setText(str);
_id.setBorder(low);

_id.setFont(f);
_id.setBounds(new Rectangle(110,25,120,40));
lbl_icon.setBounds(30,25,70,70);
c.add(_id);
c.add(lbl_icon);

_id.addKeyListener(
new KeyAdapter(){
public void keyPressed(KeyEvent evt) {
Connecter connect = new Connecter();

if (evt.getKeyCode() == evt.VK_ENTER) {

String str2 = _id.getText();
if(connect.whoLogin(str2)){
warning.dispose();
}else{
_id.setText("继续输入");
}
evt.setKeyCode(0);
}
}
}
);

warning.setBounds((1024-300)/2,(768-150)/2,300,150);
warning.show();
}
public WarningDialog(JFrame frm,Vector vcr,String cpt){
this.frame=frm;
final Vector v=vcr;
warning=new JDialog(this,"销售窗口",true);

warning.setUndecorated(true);
warning.getRootPane().setWindowDecorationStyle(JRootPane.FILE_CHOOSER_DIALOG);
c=this.getContentPane();
c.setLayout(null);

final JComboBox ware_name=new JComboBox();
for(int i=0;i<v.size();i++){
if(i%2==0){
ware_name.addItem(v.elementAt(i));
}
}
ware_name.addItem("选择商品");
ware_name.setSelectedItem("选择商品");

JLabel ware=new JLabel("选择商品");
ware.setFont(fb);
ware_name.setFont(fb);
ware.setBounds(new Rectangle(30,30,90,30));
ware_name.setBounds(new Rectangle(125,30,85,30));

lbl_message=new JLabel("");
lbl_message.setBounds(new Rectangle(215,30,55,30));

ware_name.addItemListener(
new ItemListener(){
public void itemStateChanged(ItemEvent e){
lbl_message.setText(v.elementAt(v.indexOf(e.getItem())+1).toString()+"元");
}
}
);

ImageIcon icon_btn=new ImageIcon("e:\\netbar\\icon\\073115413830268.gif");
ImageIcon icon_cancel=new ImageIcon("e:\\netbar\\icon\\073115413532761.gif");
btn=new JButton("确定");
btn_cancel=new JButton("取消");
btn.setFont(fb);
btn_cancel.setFont(fb);
btn.setIcon(icon_btn);
btn_cancel.setIcon(icon_cancel);
btn.setBounds(new Rectangle(30,75,85,30));
btn_cancel.setBounds(new Rectangle(125,75,85,30));

btn.setCursor(cursor);
btn_cancel.setCursor(cursor);

final String cptid=cpt;
btn.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
Connecter con=new Connecter();
String lbl=lbl_message.getText();
float cost=Float.parseFloat(lbl.substring(0,lbl.indexOf(".")+1));
con.costAdd(cost,cptid);
dispose();
}
}
);

btn_cancel.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
dispose();
}
}
);

c.add(btn);
c.add(btn_cancel);
c.add(ware);
c.add(ware_name);
c.add(lbl_message);

this.setSize(310,180);
this.show();
}
}

Answer 2

你想要在什么地方添加图片呢？
是作为图标还是作为背景什么的？
如果是作为图标那你就在
JOptionPane的构造函数里的Icon参数里载入一个图标就行。
如果你想作为背景什么的，就得重新构造一个JoptionPane,挺麻烦的，有需要给我留言，我再给你写例子。