SpringBoot项目串口通讯之jSerialComm

jSerialComm 是一个用于Java的串口库，它提供了一种简单的方式来访问串行端口。在Spring Boot项目中使用jSerialComm，你需要在项目的pom.xml文件中添加jSerialComm的依赖。

首先，添加jSerialComm的依赖：

<dependency>
    <groupId>com.fazecast</groupId>
    <artifactId>jSerialComm</artifactId>
    <version>2.9.0</version>
</dependency>

然后，你可以创建一个服务来封装串口通信的功能：

import com.fazecast.jSerialComm.SerialPort;
 
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
 
public class SerialCommunicationService {
 
    private SerialPort serialPort;
 
    public void openPort(String portName, int baudRate) throws Exception {
        SerialPort[] commPorts = SerialPort.getCommPorts();
        for (SerialPort port : commPorts) {
            if (port.getSystemPortName().equals(portName)) {
                serialPort = port;
                serialPort.setComPortParameters(baudRate, 8, 1, 0);
                serialPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_SEMI_BLOCKING, 0, 0);
                serialPort.openPort();
                break;
            }
        }
        if (serialPort == null) {
            throw new Exception("Port " + portName + " not found.");
        }
    }
 
    public void writeToPort(String message) throws IOException {
        OutputStream os = serialPort.getOutputStream();
        os.write(message.getBytes());
        os.flush();
    }
 
    public String readFromPort(int bytesToRead) throws IOException {
        InputStream is = serialPort.getInputStream();
        byte[] buffer = new byte[bytesToRead];
        int bytesRead = is.read(buffer);
        return new String(buffer, 0, bytesRead);
    }
 
    public void closePort() {
        if (serialPort != null) {
            serialPort.closePort();
        }
    }
}

在Spring Boot应用中使用该服务：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
@Service
public class SerialCommunicationServiceExample {
 
    @Autowired
    private SerialCommunicationService serialCommunicationService;
 
    public void communicateWithSerialPort() {
        try {
            serialCommunicationService.openPort("COM3", 9600);
            serialCommunicationService.writeToPort("Hello Serial Port\n");
            Stri