Javaシリアルポートの読み出し方法

		Enumeration portList = CommPortIdentifier.getPortIdentifiers();
		if (portList.hasMoreElements()) {
			//        
			msgLabel.setText("        ");
		} else {
			msgLabel.setText("         ");
		}
		while (portList.hasMoreElements()) {
			CommPortIdentifier portId = (CommPortIdentifier) portList.nextElement();
			if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
				comListCombo.add(portId.getName());
				comListCombo.setText(portId.getName());
			}
		}

portList = CommPortIdentifier.getPortIdentifiers();
if (portList.hasMoreElements()) {
	//        
	msgLabel.setText("        ");
} else {
	msgLabel.setText("         ");
}
while (portList.hasMoreElements()) {

	portId = (CommPortIdentifier) portList.nextElement();
	if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
		String selectedCom = comListCombo.getText();
		if (portId.getName().equals(selectedCom)) { //     //TODO
			// if (portId.getName().equals("COM1")) { //     //TODO
			try {
				serialPort = (SerialPort) portId.open("ReadComm", 10000);
				serialPort.setSerialPortParams(115200, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
				// setStatus("     COM7 ,      ..... ");
				msgLabel.setText("      ,       .....");
				// openComBtn.setEnabled(false);
				openComBtn.setText("    ");
				comPortIsOpened = true;
				serialPort.addEventListener(new SerialPortEventListener() {

					@Override
					public void serialEvent(SerialPortEvent arg0) {
						byte[] readBuffer = new byte[1024];
						int numBytes = 0;
						String readStr = "";
						try {
							inputStream = serialPort.getInputStream();
						} catch (Exception e) {
							e.printStackTrace();
						}
						try {
							while (inputStream.available() > 0) {
								numBytes = inputStream.read(readBuffer);
							}

						} catch (Exception e) {
							// e.printStackTrace();
							Display.getDefault().syncExec(new Runnable() {
								public void run() {
									macText.setText("ComOUT");
									qrCodeText.setText("ComOUT");
									openComBtn.setEnabled(true);
									createQrCodeBtn.setEnabled(false);
									btnmac.setEnabled(false);
									// setStatus("      ，          ");

									msgLabel.setText("      ，          ");

									openComBtn.setText("    ");
									qrCodeLabel.setImage(SWTResourceManager.getImage(MainWindow.class, "/"
											+ ConfigUtil.dsmLogoImage));
								};
							});
							serialPort.close();
							outputStream = null;
							inputStream = null;
							comPortIsOpened = false;
						}
					}
				});

				serialPort.notifyOnDataAvailable(true);

			} catch (Exception e5) {
				e5.printStackTrace();
			}
		}
	}

先に置いておきます.