package com;

import com.fazecast.jSerialComm.SerialPort;

import javax.swing.*;

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Arrays;

import java.io.IOException;

public class SendKeyTest {

private SerialPort serialPort;

public SendKeyTest() {

initializeSerialPort();

}

private void initializeSerialPort() {

// 获取所有可用的串口

SerialPort[] ports = SerialPort.getCommPorts();

if (ports.length == 0) {

JOptionPane.showMessageDialog(null, "未找到可用的串口设备！");

return;

}

// 选择第一个串口（这里可以根据需要修改选择逻辑）

serialPort = ports[0];

serialPort.setBaudRate(9600);

serialPort.setNumDataBits(8);

serialPort.setNumStopBits(1);

serialPort.setParity(SerialPort.NO_PARITY);

if (!serialPort.openPort()) {

JOptionPane.showMessageDialog(null, "无法打开串口：" + serialPort.getSystemPortName());

}

}

public void sendKey()

{

try{

// 构造数据包：包头(0x57,0xAB), Cmd(0x02), Len(0x08), Data(8字节), 校验和

byte[] packet = new byte[14];

packet[0] = 0x57;

packet[1] = (byte)0xAB;

packet[2] = 0x00;

packet[3] = 0x02;

packet[4] = 0x08;

packet[5] = 0x00; // Modifier

packet[6] = 0x00; // Reserved

packet[7] = 0x04; // 第1个普通按键A

// 剩余5个键码全为0

Arrays.fill(packet, 8, 13, (byte)0x00);

int checksum = 0;

for (int i = 0; i <= 12; i++) {

checksum += (packet[i] & 0xFF);

}

packet[13] = (byte)(checksum & 0xFF);

System.out.println(bytesToHex(packet));

// 发送数据包

serialPort.writeBytes(packet, packet.length);

byte[] readBuffer = new byte[1024];

int numRead = serialPort.readBytes(readBuffer, readBuffer.length);

if (numRead > 0) {

byte[] response = Arrays.copyOf(readBuffer, numRead);

System.out.println("收到返回数据：" + bytesToHex(response));

}

Thread.sleep(10);

//====================================================

packet[7] = 0x00;

// 剩余5个键码全为0

Arrays.fill(packet, 7, 12, (byte)0x00);

// 计算校验和：从Cmd(2)到最后一个数据字节

checksum = 0;

for (int i = 0; i <= 12; i++) {

checksum += (packet[i] & 0xFF);

}

packet[13] = (byte)(checksum & 0xFF);

System.out.println(bytesToHex(packet));

serialPort.writeBytes(packet, packet.length);

System.out.println("发送成功");

readBuffer = new byte[1024];

numRead = serialPort.readBytes(readBuffer, readBuffer.length);

if (numRead > 0) {

byte[] response = Arrays.copyOf(readBuffer, numRead);

System.out.println("收到返回数据：" + bytesToHex(response));

}

}

catch(Exception e){

JOptionPane.showMessageDialog(null, "发送失败：" + e.getMessage());

}

}

private static String bytesToHex(byte[] bytes) {

StringBuilder sb = new StringBuilder();

for (byte b : bytes) {

sb.append(String.format("%02X ", b));

}

return sb.toString().trim();

}

public static void main(String[] args) {

SendKeyTest sendKeyTest = new SendKeyTest();

sendKeyTest.sendKey();

}

}