How to use the FileDataSource to send a file via mail
/*
* @(#)sendfile.java 1.11 03/06/19
*
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import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
/**
* sendfile will create a multipart message with the second
* block of the message being the given file.<p>
*
* This demonstrates how to use the FileDataSource to send
* a file via mail.<p>
*
* usage: <code>java sendfile <i>to from smtp file true|false</i></code>
* where <i>to</i> and <i>from</i> are the destination and
* origin email addresses, respectively, and <i>smtp</i>
* is the hostname of the machine that has smtp server
* running. <i>file</i> is the file to send. The next parameter
* either turns on or turns off debugging during sending.
*
* @author Christopher Cotton
*/
public class sendfile {
public static void main(String[] args) {
if (args.length != 5) {
System.out.println("usage: java sendfile <to> <from> <smtp> <file> true|false");
System.exit(1);
}
String to = args[0];
String from = args[1];
String host = args[2];
String filename = args[3];
boolean debug = Boolean.valueOf(args[4]).booleanValue();
String msgText1 = "Sending a file.\n";
String subject = "Sending a file";
// create some properties and get the default Session
Properties props = System.getProperties();
props.put("mail.smtp.host", host);
Session session = Session.getInstance(props, null);
session.setDebug(debug);
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);
// create and fill the first message part
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(msgText1);
// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();
// attach the file to the message
FileDataSource fds = new FileDataSource(filename);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
// create the Multipart and add its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
// add the Multipart to the message
msg.setContent(mp);
// set the Date: header
msg.setSentDate(new Date());
// send the message
Transport.send(msg);
} catch (MessagingException mex) {
mex.printStackTrace();
Exception ex = null;
if ((ex = mex.getNextException()) != null) {
ex.printStackTrace();
}
}
}
}
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