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package com.zhonglai.luhui.smart.spare.feeder.service;
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import com.fazecast.jSerialComm.SerialPort;
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import com.fazecast.jSerialComm.SerialPortEvent;
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import com.ruoyi.common.utils.ByteUtil;
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import com.zhonglai.luhui.smart.feeder.config.OperatingData;
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import com.zhonglai.luhui.smart.feeder.dto.ModbusDto;
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import com.zhonglai.luhui.smart.feeder.dto.SerialPortConfig;
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import com.zhonglai.luhui.smart.feeder.dto.commd.FeederCommdDto;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.TimeUnit;
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/**
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* 端口服务
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*/
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public class SerialPortService implements com.fazecast.jSerialComm.SerialPortDataListener {
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private static final Logger logger = LoggerFactory.getLogger(SerialPortService.class);
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private SerialPort serialPort;
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private boolean isConnected = false;
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private final Object lock = new Object();
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private BlockingQueue<ModbusDto> dataQueue = new LinkedBlockingQueue<>();
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public void connect(String portName) {
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serialPort = findSerialPort(portName);
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// 尝试打开串口
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logger.info("尝试打开串口:"+portName);
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// serialPort = SerialPort.getCommPort(portName);
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if (serialPort == null) {
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logger.error("无法找到串口: " + portName);
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return;
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}
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logger.info("串口尝试打开成功,准备连接:"+portName);
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try {
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SerialPortConfig serialPortConfig = OperatingData.feederConfig.getSerialPortConfig();
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// 配置串口参数
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serialPort.setBaudRate(serialPortConfig.getBaudrate());
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serialPort.setNumDataBits(serialPortConfig.getDataBits());
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serialPort.setNumStopBits(serialPortConfig.getStopBits());
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serialPort.setParity(serialPortConfig.getParity());
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// 打开串口
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serialPort.openPort();
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serialPort.addDataListener(this);
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// 设置串口为非阻塞模式，以便可以异步接收数据
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serialPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_SEMI_BLOCKING, 0, 0);
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isConnected = true;
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logger.info("串口已连接: " + portName);
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} catch (Exception e) {
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logger.error("串口连接失败: " , e);
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}
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}
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@Override
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public int getListeningEvents() {
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// 监听数据到达事件
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return SerialPort.LISTENING_EVENT_DATA_AVAILABLE;//返回要监听的事件类型，以供回调函数使用。可发回的事件包括：SerialPort.LISTENING_EVENT_DATA_AVAILABLE，SerialPort.LISTENING_EVENT_DATA_WRITTEN,SerialPort.LISTENING_EVENT_DATA_RECEIVED。分别对应有数据在串口（不论是读的还是写的），有数据写入串口，从串口读取数据。如果AVAILABLE和RECEIVED同时被监听，优先触发RECEIVED
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}
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@Override
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public void serialEvent(SerialPortEvent event) {
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if (event.getEventType() == SerialPort.LISTENING_EVENT_DATA_AVAILABLE) {
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try {
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// 读取串口数据
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byte[] newData = new byte[serialPort.bytesAvailable()];
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int numRead = serialPort.readBytes(newData, newData.length);
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logger.info("串口返回{}字节数据：{}",numRead, ByteUtil.toHexString(newData));
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FeederCommdDto commdDto = new FeederCommdDto(newData);
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dataQueue.offer(commdDto); // 将数据添加到队列中// 处理串口返回的数据
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} catch (Exception e) {
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logger.error("读取串口数据时出错: " , e);
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}
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}
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}
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public void disconnect() {
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if (isConnected) {
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try {
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serialPort.removeDataListener();
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serialPort.closePort();
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isConnected = false;
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logger.info("串口已断开连接");
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} catch (Exception e) {
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logger.error("串口断开失败: " , e);
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}
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}
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}
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public boolean isConnected() {
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return isConnected;
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}
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// 实现掉线重连逻辑
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public void reconnect(String portName, int reconnectIntervalMillis) {
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while (!isConnected) {
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try {
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Thread.sleep(reconnectIntervalMillis);
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connect(portName);
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} catch (InterruptedException e) {
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logger.error("重连线程被中断: " , e);
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Thread.currentThread().interrupt();
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return;
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}
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}
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}
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public ModbusDto sendByte(byte[] bytes)
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{
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synchronized (lock)
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{
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if(isConnected)
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{
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serialPort.writeBytes(bytes,bytes.length);
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try {
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ModbusDto reStr = dataQueue.poll(15, TimeUnit.SECONDS);
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logger.info("接串口通知数据：{}",reStr);
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return reStr;
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} catch (InterruptedException e) {
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logger.error("等待串口返回数据异常！" + e);
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disconnect();
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}
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}else{
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logger.error("串口未打开！" );
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return null;
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}
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}
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return null;
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}
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private SerialPort findSerialPort(String portName)
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{
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SerialPort[] serialPorts = SerialPort.getCommPorts();//查找所有串口
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logger.info("总串口数"+serialPorts.length);
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for(SerialPort port:serialPorts){
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logger.info("Port:{},PortDesc:{},PortDesc:{}",port.getSystemPortName(),port.getPortDescription(),port.getDescriptivePortName());//打印串口名称，如COM4；打印串口类型，如USB Serial；打印串口的完整类型，如USB-SERIAL CH340(COM4)
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if(port.getSystemPortName().equals(portName))
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{
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return port;
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}
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}
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return null;
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}
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public ModbusDto sendHexData(String hexStr) {
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logger.info("串口写入：{}",hexStr);
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byte[] bytes = ByteUtil.hexStringToByte(hexStr.replace(" ","").trim().toUpperCase());
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return sendByte(bytes);
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}
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} |
...
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...
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