如何使用Java连接到Cogent CSD200指纹扫描仪？

import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;

...

String portName = "COM1"; // 替换为正确的串口号
int baudRate = 9600; // 替换为正确的波特率

CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
SerialPort serialPort = (SerialPort) portIdentifier.open("SerialCommunication", 2000);
serialPort.setSerialPortParams(baudRate, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);

// 现在您已经成功打开了与指纹扫描仪的串口连接

OutputStream outputStream = serialPort.getOutputStream();
InputStream inputStream = serialPort.getInputStream();

// 发送指令
String command = "your_command_here";
outputStream.write(command.getBytes());

// 读取响应
byte[] buffer = new byte[1024];
int len = inputStream.read(buffer);
String response = new String(buffer, 0, len);

// 现在您可以处理扫描仪的响应数据