Send sms with modem 3g

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I'm developing a java application that sends sms through a modem using RXTX.

So far I have this code: 

public static void main(String args[]) throws Exception{
    BlockingQueue<String> queue = new LinkedBlockingQueue<String>();
    Escreve escreve = new Escreve(queue);


    escreve.out("AT\r\n");
    String saida = queue.take().toString();
    System.out.println("OUTPUT: " + saida);

    if(saida.contains("OK")) {
        //AT+CMGF=1\n
        escreve.out("AT+CMGF=1\r\n");
        saida = queue.take().toString();
        System.out.println("OUTPUT: " + saida);

        if(saida.contains("OK")) {
            //"AT+CMGS=\"+"+numero+"\"\n"
            String numero = "xxxxxxxxx";
            escreve.out("AT+CMGS=\"+"+numero+"\"\r\n");
            saida = queue.take().toString();
            System.out.println("OUTPUT: " + saida);

            if(saida.contains(">")) {
                //"Teste de envio de mensagem"+(char)26
                escreve.out("Teste de envio de mensagem\u001a");
                saida = queue.take().toString();
                System.out.println("OUTPUT: " + saida);

            }else {
                System.out.println("Erro");
            }
        }else {
            System.out.println("Erro");
        }
    }else {
        System.out.println("Erro");
    }

    //AT+CMGS="+PPAAxxxxxxxx",145\r\n
    //<mensagem>\u001a
}

class Escreve{
private final BlockingQueue<String> queue;

public Escreve(BlockingQueue<String> queue){this.queue = queue;}

public void out(String command) throws Exception{
    CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier("COM9");
    SerialPort serialPort = (SerialPort) portId.open(this.getClass().getName(), 1000);
    serialPort.notifyOnDataAvailable(true);
    serialPort.setSerialPortParams(460800,
            SerialPort.DATABITS_8,
            SerialPort.STOPBITS_1,
            SerialPort.PARITY_NONE);
    serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_NONE);
    serialPort.addEventListener(new Listener(serialPort,queue));
    OutputStream outputStream = serialPort.getOutputStream();
    outputStream.write(command.getBytes());
    System.out.println("Já enviou!");
    Thread.sleep(2000);
    outputStream.close();
    serialPort.close();

}

class Listener extends Thread implements SerialPortEventListener{
private final SerialPort serialPort;
private final BlockingQueue<String> queue;
public Listener(SerialPort serialPort, BlockingQueue<String> queue){
    this.serialPort = serialPort;
    this.queue = queue;
}
public void serialEvent(SerialPortEvent event) {
    try{
        InputStream inputStream = serialPort.getInputStream();
        switch (event.getEventType()) {
        case SerialPortEvent.BI:
            System.out.println("1");
            break;
        case SerialPortEvent.OE:
            System.out.println("2");
            break;
        case SerialPortEvent.FE:
            System.out.println("3");
            break;
        case SerialPortEvent.PE:
            System.out.println("4");
            break;
        case SerialPortEvent.CD:
            System.out.println("5");
            break;
        case SerialPortEvent.CTS:
            System.out.println("6");
            break;
        case SerialPortEvent.DSR:
            System.out.println("7");
            break;
        case SerialPortEvent.RI:
            System.out.println("8");
            break;
        case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
            System.out.println("9");
            queue.put("NADA");
            break;
        case SerialPortEvent.DATA_AVAILABLE:
            byte[] readBuffer = new byte[100];
            try {
                while (inputStream.available() > 0) {
                    inputStream.read(readBuffer);
                    queue.put(new String(readBuffer));
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }catch(Exception ex){
        ex.printStackTrace();
    }
}

What is the problem?

It runs the whole program and sends the message (at least it does not give error). However, the message never reaches the number we entered.

After sending sms, it does not return anything.

NOTE: The number I enter is without the country code (+351), if you enter country code, the modem returns error.

Any help?

    
asked by anonymous 04.03.2018 / 21:42

1 answer

0

RESOLUTION

  • I use the RXTX library where we can download HERE and remove windows-x64 from the Downloads section. Copy to the project folder RXTXcomm.jar , rxtxParallel.dll and rxtxSerial.dll .
  • I use a broadband connection with a SIM card.
  • Attention to the port on which the modem is connected (COMx), in this case it is connected to the COM9 port. See the Device Manager on the modem side.

CODE 

public class ErsteSchritte {

private static CommPortIdentifier portId;
private static SerialPort serialPort;
private static OutputStream outputStream;

public static void main(String args[]) throws Exception{

    portId = CommPortIdentifier.getPortIdentifier("COM9");
    serialPort = (SerialPort) portId.open("Teste", 1000);
    serialPort.notifyOnDataAvailable(true);
    serialPort.setSerialPortParams(9600,
            SerialPort.DATABITS_8,
            SerialPort.STOPBITS_1,
            SerialPort.PARITY_NONE);
    outputStream = serialPort.getOutputStream();
    serialPort.addEventListener(new Listener(serialPort));


    //AT+CMGF=1\n
    String x1 = "AT+CMGF=1\r\n";
    outputStream.write(x1.getBytes());
    System.out.println("Enviou a primeira.");
    Thread.sleep(1000);


    //"AT+CMGS=\"+"+numero+"\"\n"
    String numero = "+351xxxxxxxxx";
    String x2 = "AT+CMGS=\""+numero+"\",145\r\n";
    outputStream.write(x2.getBytes());
    System.out.println("Envia a segunda.");
    Thread.sleep(1000);


    //"Teste de envio de mensagem"+(char)26
    String mensagem = "MENSAGEM A ENVIAR";
    String x3 = mensagem +"\u001a";
    outputStream.write(x3.getBytes());
    System.out.println("Envia a terceira.");

    Thread.sleep(20000);
    outputStream.close();
    serialPort.close();

    System.out.println("TERMINOU!");

}} 

class Listener extends Thread implements SerialPortEventListener{
private final SerialPort serialPort;

public Listener(SerialPort serialPort){
    this.serialPort = serialPort;
}

public void serialEvent(SerialPortEvent event) {
    try{
        InputStream inputStream = serialPort.getInputStream();
        switch (event.getEventType()) {
        case SerialPortEvent.BI:
            System.out.println("1");
            break;
        case SerialPortEvent.OE:
            System.out.println("2");
            break;
        case SerialPortEvent.FE:
            System.out.println("3");
            break;
        case SerialPortEvent.PE:
            System.out.println("4");
            break;
        case SerialPortEvent.CD:
            System.out.println("5");
            break;
        case SerialPortEvent.CTS:
            System.out.println("6");
            break;
        case SerialPortEvent.DSR:
            System.out.println("7");
            break;
        case SerialPortEvent.RI:
            System.out.println("8");
            break;
        case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
            System.out.println("9");
            System.out.println("NADA");
            break;
        case SerialPortEvent.DATA_AVAILABLE:
            byte[] readBuffer = new byte[200];
            try {
                while (inputStream.available() > 0) {
                    inputStream.read(readBuffer);
                    System.out.println(new String(readBuffer));
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }catch(Exception ex){
        ex.printStackTrace();
    }
}}
    
08.03.2018 / 14:12
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