jfmgetemail.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.*;

/**
 * This demo shows how to download wanted E-mail choosed among
 * previously downloaded E-mail headers.
 */
public class JfmGetEmail {
	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[1],false);
			/*
			 * Print e-mail.
			 */
			System.out.println("Sender:"+email.getEmailHeader().getFrom());
			System.out.println("Receiver:"+email.getEmailHeader().getTo(0));
			System.out.println("CC list");
			for(int i=0;i<email.getEmailHeader().getCCCount();i++)
				System.out.println("CC addr"+String.valueOf(i+1)+":"+email.getEmailHeader().getCC(i));
			System.out.println("Subject:"+email.getEmailHeader().getSubject());
			for(int i=0;i<email.getEmailPartCount();i++) {
				if (email.getEmailPart(i) instanceof JfmEmailTextPart) {
					/*
					 * We have run onto text message. We should print this message
					 * out. Warning: Every string in list ends on CRLF chars, so we
					 * will not use println command.
					 */
					JfmEmailTextPart part=(JfmEmailTextPart)email.getEmailPart(i);
					System.out.println("***Follows message with:"+part.getContentType()+" mime/type and "+
						part.getContentCharset()+" charset");
					String[] message=part.getContent();
					for(int j=0;j<message.length;j++) System.out.print(message[j]);
				} else if (email.getEmailPart(i) instanceof JfmEmailBinaryPart) {
					/*
					 * We have run onto binary attachment. For now, we will print
					 * only filename and size.
					 */
					JfmEmailBinaryPart part=(JfmEmailBinaryPart)email.getEmailPart(i);
					System.out.println("***Attachment with filename:"+part.getContentName()+
						" size:"+String.valueOf(part.getContent().length));
				}
			}
			/*
			 * Close connection to POP3 server.
			 */
			pop.close();
		} catch(Exception exc) {
			System.out.println(exc.getMessage());
		}
	}
}