如何用java实现，1.白色的结账单，2.如何把结账单打印出来，如何写？
如何用java实现，1.白色的提示结账面（就是图片中间的白色图片跟上面显示的结账单），2.用什么方法如何打印出来结账单
我上传了附件，有会的帮忙讲解下，或是写个代码带个注释！
问题补充
第一个问题知道了，第二个问题有谁知道？就是打印结账单如何打印，写个简单的出来，最好加个注释，非常感谢！
问题补充
太强悍了！！！
public class PrintPreviewDialog extends JDialog implements ActionListener {
/**
*
*/
private static final long serialVersionUID = -7320342468005550954L;
private JButton nextButton = new JButton("Next");
private JButton previousButton = new JButton("Previous");
private JButton closeButton = new JButton("Close");
private JPanel buttonPanel = new JPanel();
private PreviewCanvas canvas;
public PrintPreviewDialog(Frame parent, String title, boolean modal,
PrintTest pt, String str) {
super(parent, title, modal);
canvas = new PreviewCanvas(pt, str);
setLayout();
}
private void setLayout() {
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add(canvas, BorderLayout.CENTER);
nextButton.setMnemonic('N');
nextButton.addActionListener(this);
buttonPanel.add(nextButton);
previousButton.setMnemonic('N');
previousButton.addActionListener(this);
buttonPanel.add(previousButton);
closeButton.setMnemonic('N');
closeButton.addActionListener(this);
buttonPanel.add(closeButton);
this.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
this.setBounds((int) ((SystemProperties.SCREEN_WIDTH - 400) / 2),
(int) ((SystemProperties.SCREEN_HEIGHT - 400) / 2), 400, 400);
}
public void actionPerformed(ActionEvent evt) {
Object src = evt.getSource();
if (src == nextButton)
nextAction();
else if (src == previousButton)
previousAction();
else if (src == closeButton)
closeAction();
}
private void closeAction() {
this.setVisible(false);
this.dispose();
}
private void nextAction() {
canvas.viewPage(1);
}
private void previousAction() {
canvas.viewPage(-1);
}
class PreviewCanvas extends JPanel {
private String printStr;
private int currentPage = 0;
private PrintTest preview;
public PreviewCanvas(PrintTest pt, String str) {
printStr = str;
preview = pt;
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
PageFormat pf = PrinterJob.getPrinterJob().defaultPage();
double xoff;
double yoff;
double scale;
double px = pf.getWidth();
double py = pf.getHeight();
double sx = getWidth() - 1;
double sy = getHeight() - 1;
if (px / py < sx / sy) {
scale = sy / py;
xoff = 0.5 * (sx - scale * px);
yoff = 0;
} else {
scale = sx / px;
xoff = 0;
yoff = 0.5 * (sy - scale * py);
}
g2.translate((float) xoff, (float) yoff);
g2.scale((float) scale, (float) scale);
Rectangle2D page = new Rectangle2D.Double(0, 0, px, py);
g2.setPaint(Color.white);
g2.fill(page);
g2.setPaint(Color.black);
g2.draw(page);
try {
preview.print(g2, pf, currentPage);
} catch (PrinterException pe) {
g2.draw(new Line2D.Double(0, 0, px, py));
g2.draw(new Line2D.Double(0, px, 0, py));
}
}
public void viewPage(int pos) {
int newPage = currentPage + pos;
if (0 <= newPage && newPage < preview.getPagesCount(printStr)) {
currentPage = newPage;
repaint();
}
}
}
}
public class PrintTest extends JFrame implements ActionListener, Printable {
/**
*
*/
private static final long serialVersionUID = -1898922341899485331L;
private JButton printTextButton = new JButton("Print Text");
private JButton previewButton = new JButton("Print Preview");
private JButton printText2Button = new JButton("Print Text2");
private JButton printFileButton = new JButton("Print File");
private JButton printFrameButton = new JButton("Print Frame");
private JButton exitButton = new JButton("Exit");
private JLabel tipLabel = new JLabel("");
private JTextArea area = new JTextArea();
private JScrollPane scroll = new JScrollPane(area);
private JPanel buttonPanel = new JPanel();
private int PAGES = 0;
private String printStr;
public PrintTest() {
this.setTitle("Print Test");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds((int) ((SystemProperties.SCREEN_WIDTH - 800) / 2),
(int) ((SystemProperties.SCREEN_HEIGHT - 600) / 2), 800, 600);
initLayout();
}
private void initLayout() {
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add(scroll, BorderLayout.CENTER);
printTextButton.setMnemonic('P');
printTextButton.addActionListener(this);
buttonPanel.add(printTextButton);
previewButton.setMnemonic('v');
previewButton.addActionListener(this);
buttonPanel.add(previewButton);
printText2Button.setMnemonic('e');
printText2Button.addActionListener(this);
buttonPanel.add(printText2Button);
printFileButton.setMnemonic('i');
printFileButton.addActionListener(this);
buttonPanel.add(printFileButton);
printFrameButton.setMnemonic('F');
printFrameButton.addActionListener(this);
buttonPanel.add(printFrameButton);
exitButton.setMnemonic('x');
exitButton.addActionListener(this);
buttonPanel.add(exitButton);
this.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
}
public void actionPerformed(ActionEvent evt) {
Object src = evt.getSource();
if (src == printTextButton) {
printTextAction();
} else if (src == previewButton) {
previewAction();
} else if (src == printText2Button) {
printText2Action();
} else if (src == printFileButton) {
printFileAction();
} else if (src == printFrameButton) {
printFrameAction();
} else if (src == exitButton) {
exitApp();
}
}
public int print(Graphics g, PageFormat pf, int page)
throws PrinterException {
Graphics2D g2 = (Graphics2D) g;
g2.setPaint(Color.black);
if (page >= PAGES) {
return Printable.NO_SUCH_PAGE;
}
g2.translate(pf.getImageableX(), pf.getImageableY());
drawCurrentPageText(g2, pf, page);
return Printable.PAGE_EXISTS;
}
private void drawCurrentPageText(Graphics2D g2, PageFormat pf, int page) {
Font f = area.getFont();
String s = getDrawText(printStr)[page];
String drawText;
float ascent = 16;
int k, i = f.getSize(), lines = 0;
while (s.length() > 0 && lines < 54) {
k = s.indexOf('\n');
if (k != -1) {
lines += 1;
drawText = s.substring(0, k);
g2.drawString(drawText, 0, ascent);
if (s.substring(k + 1).length() > 0) {
s = s.substring(k + 1);
ascent += i;
}
} else {
lines += 1;
drawText = s;
g2.drawString(drawText, 0, ascent);
s = "";
}
}
}
public String[] getDrawText(String s) {
String[] drawText = new String[PAGES];
for (int i = 0; i < PAGES; i++) {
drawText[i] = "";
}
int k, suffix = 0, lines = 0;
while (s.length() > 0) {
if (lines < 54) {
k = s.indexOf('\n');
if (k != -1) {
lines += 1;
drawText[suffix] = drawText[suffix] + s.substring(0, k + 1);
if (s.substring(k + 1).length() > 0) {
s = s.substring(k + 1);
}
} else {
lines += 1;
drawText[suffix] = drawText[suffix] + s;
s = "";
}
} else {
lines = 0;
suffix++;
}
}
return drawText;
}
public int getPagesCount(String curStr) {
int page = 0;
int position, count = 0;
String str = curStr;
while (str.length() > 0) {
position = str.indexOf('\n');
count += 1;
if (position != -1) {
str = str.substring(position + 1);
} else {
str = "";
}
}
if (count > 0) {
page = count / 54 + 1;
}
return page;
}
private void printTextAction() {
printStr = area.getText().trim();
if (printStr != null && printStr.length() > 0) {
PAGES = getPagesCount(printStr);
PrinterJob myPrtJob = PrinterJob.getPrinterJob();
PageFormat pageFormat = myPrtJob.defaultPage();
myPrtJob.setPrintable(this, pageFormat);
if (myPrtJob.printDialog()) {
try {
myPrtJob.print();
} catch (PrinterException pe) {
pe.printStackTrace();
}
}
} else {
JOptionPane.showConfirmDialog(null,
"Sorry, Printer Job is Empty, Print Cancelled!", "Empty",
JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE);
}
}
private void previewAction() {
printStr = area.getText().trim();
PAGES = getPagesCount(printStr);
new PrintPreviewDialog(this, "Print Preview", true, this, printStr)
.setVisible(true);
}
private void printText2Action() {
printStr = area.getText().trim();
if (printStr != null && printStr.length() > 0) {
PAGES = getPagesCount(printStr);
DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE;
PrintService printService = PrintServiceLookup
.lookupDefaultPrintService();
DocPrintJob job = printService.createPrintJob();
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(this, flavor, das);
try {
job.print(doc, pras);
} catch (PrintException pe) {
pe.printStackTrace();
}
} else {
JOptionPane.showConfirmDialog(null,
"Sorry, Printer Job is Empty, Print Cancelled!", "Empty",
JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE);
}
}
private void printFileAction() {
JFileChooser fileChooser = new JFileChooser(SystemProperties.USER_DIR);
// fileChooser.setFileFilter(new com.szallcom.file.JavaFilter());
int state = fileChooser.showOpenDialog(this);
if (state == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
PrintService printService[] = PrintServiceLookup
.lookupPrintServices(flavor, pras);
PrintService defaultService = PrintServiceLookup
.lookupDefaultPrintService();
PrintService service = ServiceUI.printDialog(null, 200, 200,
printService, defaultService, flavor, pras);
if (service != null) {
try {
DocPrintJob job = service.createPrintJob();
FileInputStream fis = new FileInputStream(file);
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(fis, flavor, das);
job.print(doc, pras);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
private void printFrameAction() {
Toolkit kit = Toolkit.getDefaultToolkit();
Properties props = new Properties();
props.put("awt.print.printer", "durango");
props.put("awt.print.numCopies", "2");
if (kit != null) {
PrintJob printJob = kit.getPrintJob(this, "Print Frame", props);
if (printJob != null) {
Graphics pg = printJob.getGraphics();
if (pg != null) {
try {
this.printAll(pg);
} finally {
pg.dispose();
}
}
printJob.end();
}
}
}
private void exitApp() {
this.setVisible(false);
this.dispose();
System.exit(0);
}
public static void main(String[] args) {
new PrintTest().setVisible(true);
}
}
public final class SystemProperties {
public static final double SCREEN_WIDTH = Toolkit.getDefaultToolkit()
.getScreenSize().getWidth();
public static final double SCREEN_HEIGHT = Toolkit.getDefaultToolkit()
.getScreenSize().getHeight();
public static final String USER_DIR = System.getProperty("user.dir");
public static final String USER_HOME = System.getProperty("user.home");
public static final String USER_NAME = System.getProperty("user.name");
public static final String FILE_SEPARATOR = System
.getProperty("file.separator");
public static final String LINE_SEPARATOR = System
.getProperty("line.separator");
public static final String PATH_SEPARATOR = System
.getProperty("path.separator");
public static final String JAVA_HOME = System.getProperty("java.home");
public static final String JAVA_VENDOR = System.getProperty("java.vendor");
public static final String JAVA_VENDOR_URL = System
.getProperty("java.vendor.url");
public static final String JAVA_VERSION = System
.getProperty("java.version");
public static final String JAVA_CLASS_PATH = System
.getProperty("java.class.path");
public static final String JAVA_CLASS_VERSION = System
.getProperty("java.class.version");
public static final String OS_NAME = System.getProperty("os.name");
public static final String OS_ARCH = System.getProperty("os.arch");
public static final String OS_VERSION = System.getProperty("os.version");
public static final String[] FONT_NAME_LIST = GraphicsEnvironment
.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
public static final Font[] FONT_LIST = GraphicsEnvironment
.getLocalGraphicsEnvironment().getAllFonts();
}
JWindow可以实现
不错就用JWindow，没有标题栏和边框也没有任务栏按钮的，把景色设置为白色就可以了