/*
//GMailer - Felix Source Code
//Project Name: GMailer
//Developed by: Ashok
//Developed for: AMO
//Home Page: http://www.ecerocks.com/
//Project Completed: 02 May, 2010
//IDE USED: None
//Executable JAR: Eclipse IDE
//External JAR's: mail.jar, activation.jar
//Status: Completed and Deployed Successfully
*/
package FelixMail;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.regex.*;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
import javax.activation.FileDataSource;
import javax.activation.DataHandler;
public class FelixMailAttachment extends JFrame implements ActionListener, WindowListener, FocusListener
{
private static final long serialVersionUID = 1L;
String d_email;
String d_password;
String filename=null;
JLabel label_to,label_subject,label_body,label_username,label_password,label_gmailcom,label_smtp,label_port,label_felix,label_info, label_head, label_attachment, label_attachmentName;
JTextField t_to,t_subject,t_username,t_smtp,t_port;
JPasswordField t_password;
JTextArea t_body;
JButton btn_send,btn_quit,btn_reset,btn_defaults, btn_attach;
JScrollPane scrollPane;
public FelixMailAttachment()
{
label_head=new JLabel("GMAILER - FELIX");
label_head.setForeground(Color.blue);
label_head.setFont(new Font("Serif", Font.BOLD, 15));
label_to=new JLabel(" TO : ");
label_subject=new JLabel(" SUBJECT : ");
label_attachment=new JLabel(" ATTACH FILES : ");
label_attachmentName=new JLabel("");
label_body=new JLabel(" E-Mail BODY : ");
label_username=new JLabel(" GMAIL USERNAME : ");
label_password=new JLabel(" PASSWORD : ");
label_gmailcom=new JLabel("@gmail.com");
label_smtp=new JLabel("SMTP Address : ");
label_port=new JLabel(" PORT NUMBER : ");
label_felix=new JLabel("© Ashok Felix (www.ecerocks.com): AMO");
label_info=new JLabel(" Enter Gmail Username,Password,To,Subject and Body - Click Send ");
btn_send=new JButton(" SEND MAIL");
btn_quit=new JButton(" QUIT ");
btn_reset=new JButton(" RESET ");
btn_defaults=new JButton(" DEFAULTS ");
btn_attach=new JButton("ATTACH FILE");
t_to=new JTextField(40);
t_to.setText("DestinationMail@dummmyMail.com");
t_subject=new JTextField(50);
t_subject.setText("Hi, there...");
t_username=new JTextField(20);
t_username.setText("www.ecerocks.com");
t_body=new JTextArea(5,20);
t_body.setText("Write the content of your mail here....");
t_password=new JPasswordField(20);
t_password.setEchoChar('$');
t_password.setText("011235813");
t_port=new JTextField(5);
t_port.setText("465");
t_smtp=new JTextField(20);
t_smtp.setText("smtp.gmail.com");
scrollPane = new JScrollPane(t_body);
setLayout(null);
label_head.setBounds(180,5,300,20);
label_username.setBounds(70,30,120,20);
label_password.setBounds(70,60,120,20);
t_username.setBounds(200,30,120,20);
label_gmailcom.setBounds(325,30,120,20);
t_password.setBounds(200,60,120,20);
label_to.setBounds(87,100,40,20);
t_to.setBounds(130,100,300,20);
label_subject.setBounds(50,130,100,20);
t_subject.setBounds(130,130,300,20);
label_attachment.setBounds(50,160,100,20);
label_attachmentName.setBounds(150,160,300,20);
btn_attach.setBounds(330,160,110,20);
label_body.setBounds(38,185,100,50);
scrollPane.setBounds(130,205,340,300);
btn_send.setBounds(40,515,100,30);
btn_reset.setBounds(150,515,100,30);
btn_defaults.setBounds(260,515,100,30);
btn_quit.setBounds(370,515,100,30);
label_smtp.setBounds(40,560,100,20);
t_smtp.setBounds(137,560,150,20);
label_port.setBounds(300,560,100,20);
t_port.setBounds(400,560,50,20);
label_felix.setBounds(150,600,300,20);
label_info.setBounds(10,620,500,20);
add(label_username);
add(label_password);
add(t_username);
add(t_password);
add(label_gmailcom);
add(label_to);
add(t_to);
add(label_subject);
add(t_subject);
add(label_attachment);
add(label_attachmentName);
add(btn_attach);
add(label_body);
add(scrollPane);
add(btn_send);
add(btn_quit);
add(btn_reset);
add(btn_defaults);
add(label_smtp);
add(t_smtp);
add(label_port);
add(t_port);
add(label_felix);
add(label_info);
add(label_head);
btn_send.addActionListener(this);
btn_quit.addActionListener(this);
btn_reset.addActionListener(this);
btn_defaults.addActionListener(this);
btn_attach.addActionListener(this);
this.addWindowListener(this);
t_to.addFocusListener(this);
t_subject.addFocusListener(this);
t_username.addFocusListener(this);
t_smtp.addFocusListener(this);
t_port.addFocusListener(this);
t_password.addFocusListener(this);
t_body.addFocusListener(this);
setSize(500,670);
setVisible(true);
setResizable(false);
setTitle("Gmailer - Felix");
this.setDefaultCloseOperation ( JFrame.DO_NOTHING_ON_CLOSE );
}
public void actionPerformed(ActionEvent ae){
if(ae.getSource()==btn_send){
Cursor hourglasscursor = new Cursor(Cursor.WAIT_CURSOR);
setCursor(hourglasscursor);
label_info.setText("Sending Mail. Please wait for a FEW Moments");
//System.out.println("Send Button Clicked");
d_email=t_username.getText()+label_gmailcom.getText();
char[] pwd=t_password.getPassword();
d_password=new String(pwd);
String m_to=t_to.getText();
String m_subject=t_subject.getText();
String m_text=t_body.getText();
String d_host=t_smtp.getText();
String d_port=t_port.getText();
//Email Validation Start
Pattern ptrn = Pattern.compile(".+@.+\\.[a-z]+");
Matcher m = ptrn.matcher(m_to);
boolean validEmail = m.matches();
System.out.println(validEmail);
//Email Validation End
if(m_to.equals("") || m_to.equals("DestinationMail@dummmyMail.com")){
JOptionPane.showMessageDialog(this,"Enter Valid Recipient E-Mail Address");
t_to.requestFocus();
}
else if(!validEmail){
JOptionPane.showMessageDialog(this,"Invalid Email. Enter Correct E-Mail Format");
t_to.requestFocus();
}
else if(m_subject.equals("")){
JOptionPane.showMessageDialog(this,"Enter Subject for E-Mail");
t_subject.requestFocus();
}
else if(d_host.equals("")){
JOptionPane.showMessageDialog(this,"Enter Valid SMTP Address (smtp.gmail.com)");
t_smtp.requestFocus();
}
else if(d_port.equals("")){
JOptionPane.showMessageDialog(this,"Enter Valid Port Number (465)");
t_port.requestFocus();
}
else if(m_text.equals("")){
JOptionPane.showMessageDialog(this,"Enter Body Content For Email");
t_body.requestFocus();
}
else{
//System.out.println(d_email+" "+d_password+" "+m_to+" "+m_subject+" "+m_text+" "+d_host+" "+d_port);
//Mail Sending Code Start
Properties props = new Properties();
props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", d_host);
props.put("mail.smtp.port", d_port);
props.put("mail.smtp.starttls.enable","true");
props.put("mail.smtp.auth", "true");
//props.put("mail.smtp.debug", "true");
props.put("mail.smtp.socketFactory.port", d_port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try
{
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props, auth);
//session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
//msg.setText(m_text);
// create and fill the first message part
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(m_text);
// create the Multipart and add its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
//File Attach Conditional Code
if(filename!=null){
// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();
// attach the file to the message
FileDataSource fds = new FileDataSource(filename);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
mp.addBodyPart(mbp2);
}
///
// add the Multipart to the message
msg.setContent(mp);
// set the Date: header
msg.setSentDate(new Date());
msg.setSubject(m_subject);
//msg.setFrom(new InternetAddress("abc@gmail.com"));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
Transport.send(msg);
System.out.println("success");
label_info.setText("E-Mail Sent Successfully");
Cursor normalcursor = new Cursor(Cursor.DEFAULT_CURSOR);
setCursor(normalcursor);
JOptionPane.showMessageDialog(this,"Message Sent Successfully to "+m_to);
}
catch (Exception mex)
{
JOptionPane.showMessageDialog(this,"Error Sending E-Mail: \n"+mex);
mex.printStackTrace();
}
//Mail Sending Code End
}//Validation Conditions
}//Send Button End
else if(ae.getSource()==btn_quit){
System.out.println("Quit Button Clicked");
label_info.setText("Wanna Quit? Confirm...");
int confirm=JOptionPane.showConfirmDialog(this,"Do you want to Quit?");
if(confirm==0){
System.exit( 0 );
}
if(confirm==1){
label_info.setText(" Wow, you decided to stick around then. Enjoy :) ");
}
}
else if(ae.getSource()==btn_reset){
label_info.setText("Reset");
//System.out.println("Reset Button Clicked");
t_to.setText("");
t_subject.setText("");
t_body.setText("");
t_smtp.setText("smtp.gmail.com");
t_port.setText("465");
label_info.setText("All Fields Reset");
JOptionPane.showMessageDialog(this,"All Fields Reset");
}
else if(ae.getSource()==btn_defaults){
//System.out.println("Default Button Clicked");
t_username.setText("www.ecerocks.com");
t_password.setText("011235813");
t_smtp.setText("smtp.gmail.com");
t_port.setText("465");
label_info.setText("Default Values Loaded");
JOptionPane.showMessageDialog(this,"Default Values Loaded");
}
else if(ae.getSource()==btn_attach){
//System.out.println("Default Button Clicked");
JFileChooser chooser=new JFileChooser();
int returnVal=chooser.showOpenDialog(this);
if(returnVal == JFileChooser.APPROVE_OPTION) {
label_attachmentName.setText(chooser.getSelectedFile().getName());
File selectedFile = chooser.getSelectedFile();
this.filename=selectedFile.getPath();
//System.out.println("You chose to open this file: " + chooser.getSelectedFile().getName());
JOptionPane.showMessageDialog(this,"File " +this.filename+" Attached Successfully");
}
}
}
private class SMTPAuthenticator extends javax.mail.Authenticator{
public javax.mail.PasswordAuthentication getPasswordAuthentication(){
return new javax.mail.PasswordAuthentication(d_email, d_password);
}
}
//WindowListener Interface Methods Start
public void windowActivated(WindowEvent e){ }
public void windowClosed(WindowEvent e){}
public void windowClosing(WindowEvent e){
//System.out.println("Window Closing");
int confirm=JOptionPane.showConfirmDialog(this,"Do you want to Quit?");
if(confirm==0){
System.exit( 0 );
}
if(confirm==1){
label_info.setText(" Wow, you decided to stick around then. Enjoy :) ");
}
}
public void windowDeactivated(WindowEvent e){
//label_info.setText(" Got Some Other Work? Or got to copy paste something else here?");
}
public void windowDeiconified(WindowEvent e){
label_info.setText(" Window is Deiconified. I'm not sure what that means.. :) ");
}
public void windowIconified(WindowEvent e){
label_info.setText(" Window Iconified. Don't worry, I don't know what that means :) ");
}
public void windowOpened(WindowEvent e){}
//WindowListener Interface Methods End
//FocusListener Interface Methods Start
public void focusGained(FocusEvent e){
if((Component)t_username==e.getComponent()){
label_info.setText(" Enter Your Gmail Username ");
}
else if((Component)t_password==e.getComponent()){
label_info.setText(" Enter Password - Don't worry, its not stored anywhere ");
}
else if((Component)t_to==e.getComponent()){
label_info.setText(" Enter the E-mail address of the person to whom you want to send this mail ");
}
else if((Component)t_subject==e.getComponent()){
label_info.setText(" Enter a brief Subject about the purpose of this E-Mail ");
}
else if((Component)t_body==e.getComponent()){
label_info.setText(" Enter Content for this E-Mail. And don't be a skinflint");
}
else if((Component)t_smtp==e.getComponent()){
label_info.setText(" Enter a Valid SMTP address - Most problems arise from a wrong SMTP ");
}
else if((Component)t_port==e.getComponent()){
label_info.setText(" Enter a Port Number for the respective SMTP (default: 25) ");
}
if((Component)t_body!=e.getComponent()){
JTextField textField = (JTextField)e.getComponent();
textField.selectAll();
}
else if((Component)t_body==e.getComponent()){
JTextArea textArea = (JTextArea)e.getComponent();
textArea.selectAll();
}
}
public void focusLost(FocusEvent e){}
//FocusListener Interface Methods End
public static void main(String a[]){
new FelixMailAttachment();
}
}
by Ashok (September 11, 2011) 
). So I decided to make an application to solve this particular problem. I hunted around and found some info here and some info there. Aggregated all the assorted information and sat down to make what seemed to be a very dull and boring process of developing an application. And at the end of the day, it turned out to be pretty good. So good that I can distribute it as an application. As with the 
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