jfmreplymail.java

java邮件源程序

/*
 * Created on 2004.08.25
 * JFreeMail - Java mail component
 * Copyright (C) 2004 Dalibor Krleza
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
package org.jfreemail.demo;

import org.jfreemail.pop3.*;
import org.jfreemail.core.*;
import org.jfreemail.smtp.*;

/**
 * This demo shows how to reply received E-mail.
 */
public class JfmReplyMail {
	public static void main(String[] args) {
		try {
			/*
			 * We are making pop object. Immediate authentication. If not
			 * thrown exception, object is ready for use.
			 */
			JfmPOP3 pop=new JfmPOP3("pop.server.domain",0,
				JfmConsts.POP3_APOP,"dalibor","secret111");
			/*
			 * Download all headers.
			 */
			JfmEmailHeader[] email_headers=pop.getMailboxHeaders();
			/*
			 * Here goes E-mail choosing. Client choses wich mail to download.
			 * We are dowloading E-mail for first downloaded E-mail header
			 * with index 0. E-mail leaves on POP3 server. We don't want to
			 * delete readed E-mail.
			 */
			JfmEmail email=pop.getEmail(email_headers[0],false);
			/*
			 * Close connection to POP3 server.
			 */
			pop.close();
			
			/*
			 * Making reply email. This is a same object with modified sender,
			 * receiver, subject and message. Reply removes all binary parts
			 * from E-mail.
			 */
			email.ReplyEmail();
			/*
			 * Let's find text message part. We must add our own message.
			 */
			JfmEmailTextPart part=null;
			for(int i=0;i<email.getEmailPartCount();i++) {
				if (email.getEmailPart(i) instanceof JfmEmailTextPart) {
					part=(JfmEmailTextPart)email.getEmailPart(i);
				}
			}
			/*
			 * If there is text message, we will add out own at the beginning od
			 * original message. Reply method has already marked older
			 * parts of text message.
			 */
			if (part!=null) {
				String[] reply_message=new String[]{
					"Hi Marty\r\n",
					"\r\n",
					"I'm appreciating you quick answer. Unfortunately, we are not\r\n",
					"in position to forfill your demands!\r\n",
					"\r\n",
					"Sincerely yours, Dalibor!\r\n"};
				String[] out_lines=new String[part.getContent().length+reply_message.length];
				for(int i=0;i<reply_message.length;i++)
					out_lines[i]=reply_message[i];
				for(int i=0;i<part.getContent().length;i++)
					out_lines[i+reply_message.length]=part.getContent()[i];
				part.setContent(out_lines);
			}
			
			/*
			 * Creating SMTP object. Immediate authetication.
			 */
			JfmSMTP smtp=new JfmSMTP("mail.server.domain",0,
				JfmConsts.SMTP_LOGIN,"dalibor","secret111");
			/*
			 * Send out modified E-mail.
			 */
			smtp.sendMail(email);
			smtp.close();
		} catch(Exception exc) {
			System.out.println(exc.getMessage());
		}
	}
}