列出java中的所有串行端口

import javax.comm.CommPortIdentifier;
import java.util.Enumeration;

public class SerialPortList {
    public static void main(String[] args) {
        Enumeration portList = CommPortIdentifier.getPortIdentifiers();
        while (portList.hasMoreElements()) {
            CommPortIdentifier portId = (CommPortIdentifier) portList.nextElement();
            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                System.out.println("Serial Port: " + portId.getName());
            }
        }
    }
}

import javax.comm.CommPortIdentifier;
import java.util.Enumeration;

public class SerialPortList {
    public static void main(String[] args) {
        Enumeration portList = CommPortIdentifier.getPortIdentifiers();
        while (portList.hasMoreElements()) {
            CommPortIdentifier portId = (CommPortIdentifier) portList.nextElement();
            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                System.out.println("Serial Port: " + portId.getName());
            }
        }
    }
}