MainClass.java Source code

Java tutorial

Introduction

Here is the source code for MainClass.java

Source

/*
 * @(#)msgsendsample.java 1.19 03/04/22
 *
 * Copyright 1996-2003 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * 
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND
 * ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES
 * SUFFERED BY LICENSEE AS A RESULT OF  OR RELATING TO USE, MODIFICATION
 * OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL
 * SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
 * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
 * ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS
 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
 * nuclear facility.
 */

import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.SendFailedException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

// import javax.activation.*;

/**
 * msgsendsample creates a very simple text/plain message and sends it.
 * <P>
 * usage: <code>java msgsendsample <i>to from smtphost true|false</i></code>
 * where <i>to</i> and <i>from</i> are the destination and origin email
 * addresses, respectively, and <i>smtphost</i> is the hostname of the machine
 * that has the smtp server running. The last parameter either turns on or turns
 * off debugging during sending.
 * 
 * @author Max Spivak
 */
public class MainClass {
    static String msgText = "This is a message body.\nHere's the second line.";

    public static void main(String[] args) {
        if (args.length != 4) {
            usage();
            System.exit(1);
        }

        System.out.println();

        String to = args[0];
        String from = args[1];
        String host = args[2];
        boolean debug = Boolean.valueOf(args[3]).booleanValue();

        // create some properties and get the default Session
        Properties props = new Properties();
        props.put("mail.smtp.host", host);
        if (debug)
            props.put("mail.debug", args[3]);

        Session session = Session.getInstance(props, null);
        session.setDebug(debug);

        try {
            // create a message
            Message msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress(from));
            InternetAddress[] address = { new InternetAddress(args[0]) };
            msg.setRecipients(Message.RecipientType.TO, address);
            msg.setSubject("JavaMail APIs Test");
            msg.setSentDate(new Date());
            // If the desired charset is known, you can use
            // setText(text, charset)
            msg.setText(msgText);

            Transport.send(msg);
        } catch (MessagingException mex) {
            System.out.println("\n--Exception handling in msgsendsample.java");

            mex.printStackTrace();
            System.out.println();
            Exception ex = mex;
            do {
                if (ex instanceof SendFailedException) {
                    SendFailedException sfex = (SendFailedException) ex;
                    Address[] invalid = sfex.getInvalidAddresses();
                    if (invalid != null) {
                        System.out.println("    ** Invalid Addresses");
                        if (invalid != null) {
                            for (int i = 0; i < invalid.length; i++)
                                System.out.println("         " + invalid[i]);
                        }
                    }
                    Address[] validUnsent = sfex.getValidUnsentAddresses();
                    if (validUnsent != null) {
                        System.out.println("    ** ValidUnsent Addresses");
                        if (validUnsent != null) {
                            for (int i = 0; i < validUnsent.length; i++)
                                System.out.println("         " + validUnsent[i]);
                        }
                    }
                    Address[] validSent = sfex.getValidSentAddresses();
                    if (validSent != null) {
                        System.out.println("    ** ValidSent Addresses");
                        if (validSent != null) {
                            for (int i = 0; i < validSent.length; i++)
                                System.out.println("         " + validSent[i]);
                        }
                    }
                }
                System.out.println();
                if (ex instanceof MessagingException)
                    ex = ((MessagingException) ex).getNextException();
                else
                    ex = null;
            } while (ex != null);
        }
    }

    private static void usage() {
        System.out.println("usage: java msgsendsample <to> <from> <smtp> true|false");
    }
}