Send SMS by using Java

This code is example for send sms by using java programming.



Code:

import java.io.*;

import java.util.*;

import javax.comm.*;
public class GSMConnect implements SerialPortEventListener, CommPortOwnershipListener {
private String comPort = "COM3"; // This COM Port must be connect with GSM Modem or your mobile phone

private String messageString = "";

private CommPortIdentifier portId = null;

private Enumeration portList;

private InputStream inputStream = null;

private OutputStream outputStream = null; private SerialPort serialPort;
/** Creates a new instance of GSMConnect */

public GSMConnect(String comm) {

this.comPort = comm;

}
public boolean init() {

portList = CommPortIdentifier.getPortIdentifiers();

while (portList.hasMoreElements()) {

portId = (CommPortIdentifier) portList.nextElement();

if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL){

if (portId.getName().equals(comPort)) {

return true;

}

}

}

return false;

}
public void checkStatus() {

send("AT+CREG?\r\n");

}
public void dial(String phoneNumber) {

try {

//dial to this phone number

messageString = "ATD" + phoneNumber + ";\n\r";

outputStream.write(messageString.getBytes());

} catch (IOException e) {

e.printStackTrace();

}

}
public void send(String cmd) {

try {

outputStream.write(cmd.getBytes());

} catch (IOException e) {

e.printStackTrace();

}

}
public void sendMessage(String phoneNumber, String message) {

send("AT+CMGS=\"" + phoneNumber + "\"\r\n");

send(message + '\032');

}
public void hangup() {

send("ATH\r\n");

}
public void connect() throws NullPointerException {

if (portId != null) {

try {

portId.addPortOwnershipListener(this);

serialPort = (SerialPort) portId.open("MobileGateWay", 2000);

} catch (PortInUseException e) {

e.printStackTrace();

}

try {

inputStream = serialPort.getInputStream();

outputStream = serialPort.getOutputStream();

} catch (IOException e) {

e.printStackTrace();

}

try {/** These are the events we want to know about*/

serialPort.addEventListener(this);

serialPort.notifyOnDataAvailable(true);
} catch (TooManyListenersException e) {

e.printStackTrace();

}

//Register to home network of sim card

send("ATZ\r\n");

} else {

throw new NullPointerException("COM Port not found!!");

}

}
public void serialEvent(javax.comm.SerialPortEvent serialPortEvent) {

switch (serialPortEvent.getEventType()) {

case SerialPortEvent.BI:

case SerialPortEvent.OE:

case SerialPortEvent.FE:

case SerialPortEvent.PE:

case SerialPortEvent.CD:

case SerialPortEvent.CTS:

case SerialPortEvent.DSR:

case SerialPortEvent.RI:

case SerialPortEvent.OUTPUT_BUFFER_EMPTY:

case SerialPortEvent.DATA_AVAILABLE:

byte[] readBuffer = new byte[2048];

try {

while (inputStream.available() > 0) {

int numBytes = inputStream.read(readBuffer);

}

//print response message

System.out.print(new String(readBuffer));

} catch (IOException e) {}

break;

}

}
public void ownershipChange(int type) {

switch (type) {

case CommPortOwnershipListener.PORT_UNOWNED:

System.out.println(portId.getName() + ": PORT_UNOWNED"); break;
case CommPortOwnershipListener.PORT_OWNED:

System.out.println(portId.getName() + ": PORT_OWNED"); break;
case CommPortOwnershipListener.PORT_OWNERSHIP_REQUESTED:

System.out.println(portId.getName() + ": PORT_INUSED"); break;

}

}


public static void main(String args[]) {

GSMConnect gsm = new GSMConnect(comPort);

if (gsm.init()) {

try {

gsm.connect();

gsm.checkStatus();

Thread.sleep(5000);

gsm.sendMessage("Mobile Phone Number", "Your Message");

Thread.sleep(20000);

gsm.hangup();

} catch (Exception e) { e.printStackTrace(); }
} else {
System.out.println("Can't init this card");
}
}
}