通过rxtx库和在jTextArea中显示字符串文本的SerialPortEvent接收JAVA数据

import gnu.io.*;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class SerialPortExample extends JFrame implements SerialPortEventListener {
    private JTextArea textArea;

    private SerialPort serialPort;

    public SerialPortExample() {
        // 创建文本区域
        textArea = new JTextArea();
        getContentPane().add(new JScrollPane(textArea));

        // 创建串口对象
        try {
            serialPort = (SerialPort) CommPortIdentifier.getPortIdentifier("COM1").open("SerialPortExample", 2000);
            serialPort.addEventListener(this);
            serialPort.notifyOnDataAvailable(true);
            serialPort.setSerialPortParams(9600, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
        } catch (Exception e) {
            e.printStackTrace();
        }

        // 创建窗口
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 300);
        setVisible(true);
    }

    public void serialEvent(SerialPortEvent event) {
        if (event.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
            try {
                BufferedReader reader = new BufferedReader(new InputStreamReader(serialPort.getInputStream()));
                String line = reader.readLine();
                while (line != null) {
                    textArea.append(line + "\n");
                    line = reader.readLine();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new SerialPortExample();
    }
}