一個基本入門的介紹：
http://cysky.blog.hexun.com.tw/6387182_d.html
範例code：
import java.util.Enumeration;
import gnu.io.*;
import java.io.*;
import javax.swing.*;
import java.util.*;
public class Core extends JFrame implements Runnable, SerialPortEventListener
{
private static SerialPort serialPort;
private static InputStream inStream;
private static OutputStream outStream;
private static String inputLine;
static String TimeStamp;
protected String divertCode = "10";
Thread readThread;
//===================================================================<constructor>
publicCore()
{
Enumeration ports = CommPortIdentifier.getPortIdentifiers();
System.out.println("start");
while(ports.hasMoreElements())
{
CommPortIdentifier port = (CommPortIdentifier) ports.nextElement();
System.out.print(port.getName() + " -> " + port.getCurrentOwner() + " -> ");
switch(port.getPortType())
{
case CommPortIdentifier.PORT_PARALLEL:
System.out.println("parell");
break;
case CommPortIdentifier.PORT_SERIAL:
System.out.println("serial");
try {
serialPort = (SerialPort) port.open("core", 9600);
try
{
serialPort.enableReceiveTimeout(1000);
serialPort.enableReceiveThreshold(0);
}
catch (UnsupportedCommOperationException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
int baudRate = 9600; // 2400bps
serialPort.setSerialPortParams(
baudRate,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
System.out.println("sucess");
} catch (PortInUseException e) {
System.out.println(e.getMessage());
} catch (UnsupportedCommOperationException e) {
System.out.println(e.getMessage());
}
break;
}
}
try
{
serialPort.addEventListener(this);
}
catch (TooManyListenersException e) {}
serialPort.notifyOnDataAvailable(true);
readThread = new Thread(this);
readThread.start();
}//==================================================================end of constructor
//===================================================================run [method][override Runable method]
public void run()
{
try
{
Thread.sleep(100);
}
catch (InterruptedException e) {}
}//==================================================================end of public void run
//===================================================================serialEvent [method] [Serial port Event listener]
public void serialEvent(SerialPortEvent event)
{
try
{
System.out.println((serialPort.getInputStream()).read());
}
catch (Exception e) {}
}//==================================================================end of public void serialEvent
public static void main(String[] args)
{
Core f = new Core();
f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
f.setSize( 350, 150 );
f.setVisible( true );
}
}
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