How to construct and send a single part html message : Email Message « Email « Java Tutorial





/*
 * @(#)sendhtml.java  1.10 05/08/17
 *
 * Copyright 1998-2005 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
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 * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
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 * 
 * You acknowledge that Software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
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 */

import java.io.*;
import java.util.Properties;
import java.util.Date;

import javax.mail.*;
import javax.activation.*;
import javax.mail.internet.*;
import javax.mail.util.*;

/**
 * Demo app that shows how to construct and send a single part html message.
 * Note that the same basic technique can be used to send data of any type.
 * 
 * @author John Mani
 * @author Bill Shannon
 * @author Max Spivak
 */

public class sendhtml {

  public static void main(String[] argv) {
    new sendhtml(argv);
  }

  public sendhtml(String[] argv) {

    String to, subject = null, from = null, cc = null, bcc = null, url = null;
    String mailhost = null;
    String mailer = "sendhtml";
    String protocol = null, host = null, user = null, password = null;
    String record = null; // name of folder in which to record mail
    boolean debug = false;
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    int optind;

    for (optind = 0; optind < argv.length; optind++) {
      if (argv[optind].equals("-T")) {
        protocol = argv[++optind];
      } else if (argv[optind].equals("-H")) {
        host = argv[++optind];
      } else if (argv[optind].equals("-U")) {
        user = argv[++optind];
      } else if (argv[optind].equals("-P")) {
        password = argv[++optind];
      } else if (argv[optind].equals("-M")) {
        mailhost = argv[++optind];
      } else if (argv[optind].equals("-f")) {
        record = argv[++optind];
      } else if (argv[optind].equals("-s")) {
        subject = argv[++optind];
      } else if (argv[optind].equals("-o")) { // originator
        from = argv[++optind];
      } else if (argv[optind].equals("-c")) {
        cc = argv[++optind];
      } else if (argv[optind].equals("-b")) {
        bcc = argv[++optind];
      } else if (argv[optind].equals("-L")) {
        url = argv[++optind];
      } else if (argv[optind].equals("-d")) {
        debug = true;
      } else if (argv[optind].equals("--")) {
        optind++;
        break;
      } else if (argv[optind].startsWith("-")) {
        System.out
            .println("Usage: sendhtml [[-L store-url] | [-T prot] [-H host] [-U user] [-P passwd]]");
        System.out.println("\t[-s subject] [-o from-address] [-c cc-addresses] [-b bcc-addresses]");
        System.out.println("\t[-f record-mailbox] [-M transport-host] [-d] [address]");
        System.exit(1);
      } else {
        break;
      }
    }

    try {
      if (optind < argv.length) {
        // XXX - concatenate all remaining arguments
        to = argv[optind];
        System.out.println("To: " + to);
      } else {
        System.out.print("To: ");
        System.out.flush();
        to = in.readLine();
      }
      if (subject == null) {
        System.out.print("Subject: ");
        System.out.flush();
        subject = in.readLine();
      } else {
        System.out.println("Subject: " + subject);
      }

      Properties props = System.getProperties();
      // XXX - could use Session.getTransport() and Transport.connect()
      // XXX - assume we're using SMTP
      if (mailhost != null)
        props.put("mail.smtp.host", mailhost);

      // Get a Session object
      Session session = Session.getInstance(props, null);
      if (debug)
        session.setDebug(true);

      // construct the message
      Message msg = new MimeMessage(session);
      if (from != null)
        msg.setFrom(new InternetAddress(from));
      else
        msg.setFrom();

      msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
      if (cc != null)
        msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc, false));
      if (bcc != null)
        msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(bcc, false));

      msg.setSubject(subject);

      collect(in, msg);

      msg.setHeader("X-Mailer", mailer);
      msg.setSentDate(new Date());

      // send the thing off
      Transport.send(msg);

      System.out.println("\nMail was sent successfully.");

      // Keep a copy, if requested.

      if (record != null) {
        // Get a Store object
        Store store = null;
        if (url != null) {
          URLName urln = new URLName(url);
          store = session.getStore(urln);
          store.connect();
        } else {
          if (protocol != null)
            store = session.getStore(protocol);
          else
            store = session.getStore();

          // Connect
          if (host != null || user != null || password != null)
            store.connect(host, user, password);
          else
            store.connect();
        }

        // Get record Folder. Create if it does not exist.
        Folder folder = store.getFolder(record);
        if (folder == null) {
          System.err.println("Can't get record folder.");
          System.exit(1);
        }
        if (!folder.exists())
          folder.create(Folder.HOLDS_MESSAGES);

        Message[] msgs = new Message[1];
        msgs[0] = msg;
        folder.appendMessages(msgs);

        System.out.println("Mail was recorded successfully.");
      }

    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  public void collect(BufferedReader in, Message msg) throws MessagingException, IOException {
    String line;
    String subject = msg.getSubject();
    StringBuffer sb = new StringBuffer();
    sb.append("<HTML>\n");
    sb.append("<HEAD>\n");
    sb.append("<TITLE>\n");
    sb.append(subject + "\n");
    sb.append("</TITLE>\n");
    sb.append("</HEAD>\n");

    sb.append("<BODY>\n");
    sb.append("<H1>" + subject + "</H1>" + "\n");

    while ((line = in.readLine()) != null) {
      sb.append(line);
      sb.append("\n");
    }

    sb.append("</BODY>\n");
    sb.append("</HTML>\n");

    msg.setDataHandler(new DataHandler(new ByteArrayDataSource(sb.toString(), "text/html")));
  }
}










30.4.Email Message
30.4.1.Creates a message, retrieves a Transport from the session based on the type of the address and sends the message
30.4.2.Create a very simple text/plain message and sends it
30.4.3.Show information about and contents of messages
30.4.4.Get Message Size Line Count
30.4.5.Access message given its UID and Show information about and contents of messages
30.4.6.Create a simple multipart/mixed message and sends it
30.4.7.How to construct and send an RFC822 (singlepart) message
30.4.8.How to construct and send a single part html message