Problem to listout the ports in javax.comm package

[rajujrk]

hi, currently i am doing the project to send the sms from PC to Mobile and vice versa using GSM modem. I successfully done this process in Hyperterminal.

First i connect the GSM modem in COM1 port

then set the baud rate to 9600

and execute the AT commands in hyperterminal and its works fine..

But my problem is that to do the similar process in java..

javax.comm package is used to interact with the ports..

I used the below code

        portList = CommPortIdentifier.getPortIdentifiers();
 
        while (portList.hasMoreElements()) {
            portId = (CommPortIdentifier) portList.nextElement();
            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                if (portId.getName().equals("COM1")) {
                //if (portId.getName().equals("/dev/term/a")) {
                    try {
                        serialPort = (SerialPort)
                            portId.open("SimpleWriteApp", 2000);
                    } catch (PortInUseException e) {}
                    try {
                        outputStream = serialPort.getOutputStream();
                    } catch (IOException e) {}
                    try {
                        serialPort.setSerialPortParams(9600,
                            SerialPort.DATABITS_8,
                            SerialPort.STOPBITS_1,
                            SerialPort.PARITY_NONE);
                    } catch (UnsupportedCommOperationException e) {}
                    try {
                        outputStream.write(messageString.getBytes());
                    } catch (IOException e) {}
                }
            }
 
 

But the problem is that results the port count is 0(Null).
Please i need the solution.. Its Urgent..

Thanks in Advance..

[JosAH]

Note that saying "It's urgent" doesn't help you much: it may be urgent to you but
it isn't urgent to us and we won't hurry and treat you in a priviledged way because
you mentioned your urgency; you'd better had started your project a bit earlier.

w.r.t. your question: Sun's comm package only handles parallel and serial ports;
it doesn't understand, nor recognizes any usb ports.

kind regards,

Jos

[rajujrk]

Note that saying "It's urgent" doesn't help you much: it may be urgent to you but
it isn't urgent to us and we won't hurry and treat you in a priviledged way because
you mentioned your urgency; you'd better had started your project a bit earlier.

w.r.t. your question: Sun's comm package only handles parallel and serial ports;
it doesn't understand, nor recognizes any usb ports.

kind regards,

Jos

But Even it didn't list out the PARALLEL and SERIAL ports

Why?

[JosAH]

What happens when you append a line (after line #4) like this:

System.out.println(portID.getName());
 

Is anything printed at all?

kind regards,

Jos

[rajujrk]

What happens when you append a line (after line #4) like this:

System.out.println(portID.getName());
 

Is anything printed at all?

kind regards,

Jos

AFter the Below Statement

portList = CommPortIdentifier.getPortIdentifiers(); 
 

the getPortIdentifiers() method return no values . So the below while says always false

        while (portList.hasMoreElements()) { 
 
         }
 

What happened in the getPortIdentifiers() Method?

[JosAH]

What happened in the getPortIdentifiers() Method?

Did you properly install all three files? i.e. the jar in the lib/ext directory, the dll
in the bin directory and the .properties file in the lib directory.

kind regards,

Jos

[rajujrk]

Did you properly install all three files? i.e. the jar in the lib/ext directory, the dll
in the bin directory and the .properties file in the lib directory.

kind regards,

Jos

ya, i installed it in lib/ext

I include the following files

1. comm.jar
2. javax.comm.properties

What is the third file?

I have another file as win32.dll

[JosAH]

Store that .properties file in /lib instead. So:

1) the .jar in /lib/ext
2) the .properties in /lib
3) the .dll in /bin

Also read their installation notes.

kind regards,

Jos

[rajujrk]

Store that .properties file in /lib instead. So:

1) the .jar in /lib/ext
2) the .properties in /lib
3) the .dll in /bin

Also read their installation notes.

kind regards,

Jos

Ya its working fine now..

I put .properties file in lib/ext

i change its loc to lib

Now its works fine

Thank you..

[Bharti Goel]

hi,

I am trying to do this same task. For me it is recognizing the ports but not sending the sms. It works fine via hyperterminal. Is it possible for you to send me your code?

Thanks a lot.

regards
Bharti