e-mail with javamail (including accessories), with JBUILDER3 implementation

Send mail//title:your Product Name
Version:
Copyright:copyright (c) 1999
Author:your Name
Company:your Company
Description:your Description

Package Mail;

Import java.awt.*;
Import javax.swing.*;
Import java.awt.event.*;
Import java.util.*;
Import java.io.*;
Import javax.mail.*;
Import javax.mail.internet.*;
Import javax.activation.*;


public class SendMail extends Frame {
Label Label1 = new label ();
TextField textField1 = new TextField ();
Label Label2 = new label ();
TextField textField2 = new TextField ();
Label label3 = new label ();
TextArea textArea1 = new TextArea ();
Label Label4 = new label ();
TextField textField3 = new TextField ();
Button button1 = New button ();
Button button2 = New button ();

Public SendMail () {
EnableEvents (Awtevent.window_event_mask);
try {
Jbinit ();
}
catch (Exception e) {
E.printstacktrace ();
}
}
protected void processWindowEvent (WindowEvent e) {
Super.processwindowevent (e);
if (e.getid () = = windowevent.window_closing) {
System.exit (0);
}
}
public static void Main (string[] args) {
SendMail sendMail1 = new SendMail ();
Sendmail1.setsize (400,400);
Sendmail1.show (TRUE);
}

private void Jbinit () throws Exception {
Label1.setbounds (New Rectangle (41, 38, 45, 23));
Label1.settext ("addressee");
This.setlayout (NULL);
This.setsize (400,400);
Textfield1.setbounds (New Rectangle (110, 36, 174, 23));
Label2.setbounds (New Rectangle (42, 75, 38, 23));
Label2.settext ("subject");
Textfield2.setbounds (New Rectangle (110, 76, 173, 23));
Label3.setbounds (New Rectangle (43, 148, 38, 23));
Label3.settext ("content");
Textarea1.setbounds (New Rectangle (110, 155, 256, 170));
Label4.setbounds (New Rectangle (45, 111, 44, 23));
Label4.settext ("annex");
Textfield3.setbounds (New Rectangle (110, 115, 173, 23));
Button1.setbounds (New Rectangle (70, 348, 88, 24));
Button1.setlabel ("send");
Button1.addactionlistener (New Java.awt.event.ActionListener () {

public void actionperformed (ActionEvent e) {
Button1_actionperformed (e);
}
});
Button2.setbounds (New Rectangle (244, 348, 88, 24));
Button2.setlabel ("Re-filling");
Button2.addactionlistener (New Java.awt.event.ActionListener () {

public void actionperformed (ActionEvent e) {
Button2_actionperformed (e);
}
});
This.add (Label1, NULL);
This.add (textField1, NULL);
This.add (textField2, NULL);
This.add (textField3, NULL);
This.add (textArea1, NULL);
This.add (Label2, NULL);
This.add (label4, NULL);
This.add (label3, NULL);
This.add (button2, NULL);
This.add (button1, NULL);
}

void Button2_actionperformed (ActionEvent e) {
Textfield1.settext ("");
Textfield2.settext ("");
Textfield3.settext ("");
Textarea1.settext ("");
}

void Button1_actionperformed (ActionEvent e) {
String to,from,subject,message,attachment;
From= "toone@mail.com";
To=textfield1.gettext ();
if (To.trim (). Equals ("")) {
Joptionpane.showmessagedialog (This, "the addressee cannot be empty!", "error", joptionpane.error_message);
Return
}
Message=textarea1.gettext ();
Attachment=textfield3.gettext ();
if (Message.trim (). Equals ("") &&attachment.trim (). Equals ("")) {
Joptionpane.showmessagedialog (This, "contents and attachments cannot all be empty!", "error", joptionpane.error_message);
Return
}
if (To.indexof ("@") ==-1) {
Joptionpane.showmessagedialog (this, "Invalid addressee address!", "error", joptionpane.error_message);
Return
}
Subject=textfield2.gettext (). Trim ();
if (Subject.equals (""))
If Joptionpane.showconfirmdialog (this, "You don't need to set a theme?") "," system hint ", 0)!=0)
Return
File File=new file (attachment);
if (!attachment.equals ("")) {
if (!file.isfile ()) {
Joptionpane.showmessagedialog (this, "Invalid attachment name!", "error", joptionpane.error_message);
Return
}
}
The above procedure is to verify the validity of the input

Create some properties and get the default session
Properties props = System.getproperties ();
Props.put ("Mail.smtp.host", "192.168.0.1");
Session session = Session.getdefaultinstance (props, null);
Session.setdebug (FALSE);

try{
Create a message
MimeMessage msg = new MimeMessage (session);
Msg.setfrom (New InternetAddress (from));
Internetaddress[] Address = {new internetaddress (to)};
Msg.setrecipients (Message.RecipientType.TO, address);
Msg.setsubject (subject);
Msg.addheader ("Toone", "Fangjianhua");
if (Attachment.equals ("")) {
System.out.println ("This is plain mail");
Msg.settext (message);
}
else {
System.out.println ("This is a multipart mail");
Create and fill the
MimeBodyPart MBP1 = new MimeBodyPart ();
Mbp1.settext (message);

Create the second message part
MimeBodyPart MBP2 = new MimeBodyPart ();

Attach the "file to" message
Filedatasource FDS = new Filedatasource (file);
Mbp2.setdatahandler (New DataHandler (FDS));
Mbp2.setfilename (Fds.getname ());

Create the Multipart and its parts to it
Multipart MP = new Mimemultipart ();
Mp.addbodypart (MBP1);
Mp.addbodypart (MBP2);

Add the Multipart to the message
Msg.setcontent (MP);
}
Msg.setsentdate (New Date ());
Send the message
for (int i=0;i<10;i++)
Transport.send (msg);
System.out.println ("Send a Mail Success");
Joptionpane.showmessagedialog (This, "Send mail Successfully", "system hint", joptionpane.information_message);
}
catch (Exception ex) {
Joptionpane.showmessagedialog (This, "Send Mail Failed", "error", joptionpane.error_message);
}

}
}