java 串口java实现串口通信代码

java实现串口通信代码

public static void process() { try { Enumeration portList = CommPortIdentifier.getPortIdentifiers(); while (portList.hasMoreElements()) { CommPortIdentifier portId = (CommPortIdentifier) portList.nextElement(); if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL)//如果端口类型是串口则判断名称 { if(portId.getName().equals("COM1")){//如果是COM1端口则退出循环 break; }else{ portId=null; } } } SerialPort serialPort = (SerialPort)portId.open("Serial_Communication", 1000);//打开串口的超时时间为1000ms serialPort.setSerialPortParams(9600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);//设置串口速率为9600，数据位8位，停止位1们，奇偶校验无 InputStream in = serialPort.getInputStream();//得到输入流 OutputStream out = serialPort.getOutputStream();//得到输出流 //进行输入输出操作 //操作结束后 in.close(); out.close(); serialPort.close();//关闭串口 } catch (PortInUseException e) { e.printStackTrace(); } catch (UnsupportedCommOperationException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }