问题
Send the Text message(SMS) to multiple numbers in blackberry java applications. i tried the program to send the text message with single mobile numbers. how to i do in multiple mobile numbers?
This code is i'm using to send the message to multiple mobile number. Its shows the log as NullPointer Exception.
package mypackage;
import java.io.IOException;
import javax.microedition.io.Connector;
import javax.microedition.io.Datagram;
import javax.microedition.io.DatagramConnection;
import javax.wireless.messaging.MessageConnection;
import javax.wireless.messaging.TextMessage;
import net.rim.device.api.system.RadioInfo;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.EditField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
public final class MyScreen extends MainScreen
{
String[] numbers={"number1","number2","number3"};
public MyScreen()
{
// Set the displayed title of the screen
setTitle("Sending SMS");
LabelField ph_no_lbl= new LabelField("Enter the Phone Number");
LabelField msg_lbl= new LabelField("Enter the Message");
LabelField f_numbers= new LabelField();
final EditField phone_number_edit= new EditField(Field.EDITABLE|FOCUSABLE);
final EditField message_edit= new EditField(Field.EDITABLE|FOCUSABLE);
ButtonField send = new ButtonField(Field.FOCUSABLE);
send.setLabel("Click Here to Send");
StringBuffer result = new StringBuffer();
for (int i = 0; i < numbers.length; i++) {
result.append( numbers[i]+"\n" );
//result.append( optional separator );
}
String mynewstring = result.toString();;
phone_number_edit.setText(mynewstring);
add(ph_no_lbl);
add(phone_number_edit);
add(msg_lbl);
add(message_edit);
add(send);
send.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
// TODO Auto-generated method stub
final String getNumber= phone_number_edit.getText().toString();
final String getMessage= message_edit.getText().toString();
if(getNumber.length()==0 || getNumber.length()<=9 || getMessage.length()==0)
{
Dialog.alert("Enter the Fields CareFully");
}
else
{
sendSMS(getNumber, getMessage);
}
}
});
}
//<<<<<<<Method Two>>>>>>>>>>>>>>>>>>>>
public static void sendSMS(final String no, final String msg) {
// try {
new Thread() {
public void run() {
boolean smsSuccess = false;
if (RadioInfo.getNetworkType() == RadioInfo.NETWORK_CDMA) {
DatagramConnection dc = null;
try {
dc = (DatagramConnection) Connector.open("sms://" + no);
byte[] data = msg.getBytes();
Datagram dg = dc.newDatagram(dc.getMaximumLength());
dg.setData(data, 0, data.length);
dc.send(dg);
// / send successfully
smsSuccess = true;
} catch (Exception e) {
System.out.println("Exception 1 : " + e.toString());
e.printStackTrace();
smsSuccess = false;
} finally {
try {
dc.close();
dc = null;
} catch (IOException e) {
System.out.println("Exception 2 : " + e.toString());
e.printStackTrace();
}
}
} else {
MessageConnection conn = null;
try {
conn = (MessageConnection) Connector
.open("sms://" + no);
TextMessage tmsg = (TextMessage) conn
.newMessage(MessageConnection.TEXT_MESSAGE);
tmsg.setAddress("sms://" + no);
tmsg.setPayloadText(msg);
conn.send(tmsg);
smsSuccess = true;
} catch (Exception e) {
smsSuccess = false;
System.out.println("Exception 3 : " + e.toString());
e.printStackTrace();
} finally {
try {
conn.close();
conn = null;
} catch (IOException e) {
System.out.println("Exception 4 : " + e.toString());
e.printStackTrace();
}
}
}
if(smsSuccess)
{
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Dialog.alert("Message Sending Succcessfully :-)");
}
});
}else
{
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Dialog.alert("Message Sending Failure :-(");
}
});
}
}
}.start();
}
}
回答1:
sending SMS programmatically for multiple recipients: Link
来源：https://stackoverflow.com/questions/15680840/how-to-send-the-text-message-to-multiple-numbers-in-blackberry-java-applications