Code quản lí bán hàng của cửa hàng cung cấp phụ kiện di động bằng Java+ báo cáo

void initMenu() {
drawer = Drawer.newDrawer(this)
.addChild(new DrawerItem(“Cửa sổ chính”).build())
.addChild(new DrawerItem(“Tài khoản”).build())
.addFooter(new DrawerItem(“Đăng xuất”).build())
.event(new EventDrawer() {
@Override
public void selected(int index, DrawerItem item) {
if (drawer.isShow()) {
drawer.hide();
}
switch (index) {
case 0:
//gọi trang Main
break;
case 1:
//gọi trang tài khoản
break;
}
}
}).build();
}

public void initWebcam() {
Dimension size = WebcamResolution.QVGA.getSize();
webcam = Webcam.getWebcams().get(0); //0 is default webcam
webcam.setViewSize(size);
panel = new WebcamPanel(webcam);
panel.setPreferredSize(size);
pnQR.add(panel, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 0, 470, 300));
executor.execute(this);
}

@Override
public void run() {
do {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}

Result result = null;
BufferedImage image = null;
if (!webcam.isOpen()) {
return;
}
if (webcam.isOpen()) {
if ((image = webcam.getImage()) == null) {
continue;
}
}
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
result = new MultiFormatReader().decode(bitmap);
} catch (NotFoundException e) {
}
if (result != null) {
//xử lý mã tại đây
}
} while (true);
}

//Trình tạo mã QR
try {
String charset = “UTF-8”; // or “ISO-8859-1”
Map< EncodeHintType, ErrorCorrectionLevel> hintMap = new HashMap< EncodeHintType, ErrorCorrectionLevel>();
hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
BitMatrix matrix = new MultiFormatWriter().encode(
new String(qrCodeData.getBytes(charset), charset),
BarcodeFormat.QR_CODE, 200, 200, hintMap);
MatrixToImageWriter.writeToFile(matrix, filePath.substring(filePath
.lastIndexOf(‘.’) + 1), new File(filePath));
} catch (Exception e) {
}

try {
XSSFWorkbook wb = new XSSFWorkbook();
XSSFSheet sheet = wb.createSheet(“Danh sách sản phẩm”);
XSSFRow row = null;
Cell cell = null;
row = sheet.createRow(0);

cell = row.createCell(0, CellType.STRING);
cell.setCellValue(“MÃ SẢN PHẨM”);

cell = row.createCell(1, CellType.STRING);
cell.setCellValue(“TÊN SẢN PHẨM”);

JFileChooser fc = new JFileChooser();
fc.showOpenDialog(null);
File f = fc.getSelectedFile();
String path = f.getAbsoluteFile().toString();
String file = f.getAbsolutePath();
if (!path.contains(“.xlsx”)) {
file = f.getAbsolutePath() + “.xlsx”;
}
try {
FileOutputStream fis = new FileOutputStream(file);
wb.write(fis);
fis.close();
} catch (Exception ex) {
System.out.println(ex);
}
} catch (Exception ex) {
System.out.println(ex);
}

Date now = new Date();
SimpleDateFormat formater = new SimpleDateFormat();
formater.applyPattern(“yyyy”);
String thisYear = formater.format(now);
List<Object[]> listTKSP_L = TKdao.getSPBanChayTL(thisYear);
DefaultPieDataset data = new DefaultPieDataset();
float tongsl = 0;
for (Object[] row : listTKSP_L) {
tongsl += (int) row[1];
}
for (Object[] row : listTKSP_L) {
data.setValue((String) (row[0]), (((int) row[1] / tongsl) * 100));
}
JFreeChart Chart = ChartFactory.createPieChart(“Tỷ lệ phần trăm loại sản phẩm bán được”, data, true, true, true);
ChartPanel chartPanel = new ChartPanel(Chart);
chartPanel.setPreferredSize(new Dimension(jpPie.getWidth(), jpPie.getHeight()));

jpPie.removeAll();
jpPie.setLayout(new CardLayout());
jpPie.add(chartPanel);

Properties prop = new Properties();
prop.put(“mail.smtp.host”, “smtp.gmail.com”);
prop.put(“mail.smtp.port”, “587”);
prop.put(“mail.smtp.auth”, “true”);
prop.put(“mail.smtp.starttls.enable”, “true”); //TLS

Session session = Session.getInstance(prop,
new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(email));
message.setRecipients(
Message.RecipientType.TO,
InternetAddress.parse(email)
);

Multipart content = new MimeMultipart();
MimeBodyPart textBody = new MimeBodyPart();

message.setSubject(“DAVISY”);

textBody.setText(“Hello”);

content.addBodyPart(textBody);
message.setContent(content);
Transport.send(message);

} catch (MessagingException e) {
System.out.println(e);
}