E-mail from Java

"JAB" <brunoj@netcarrier.com> wrote:
>
>I would like to know if there is a way to send an e-mail alert from a Java
>application? I am writing a little routine that checks to see of our remote
>servers are up and running as well as our Oracle database. What I would
>like to do is have certain individuals e-mail (via our pagers) if either
>the server(s) or database is down?
>
>Thanks
>JAB

Hi,
Attached is the code for sending an email from java.
You need JavaMail package to be installed and your CLASSPATH should
be containing mail.jar.
This will run on Unix machine/not tested on NT...
/*VENKAT*/
--------
import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;

import javax.mail.*;
import javax.mail.internet.*;

public class Mail {

public static boolean send(String to, String subject, String from, String
message) {
boolean retValue = false;
String mailer = "venkat";
boolean debug = false;
try {
Properties props = System.getProperties();
// ### - could use Session.getTransport() and Transport.connect()
// ### - assume we're using SMTP
props.put("mail.smtp.host", "localhost");

// Get a Session object
Session session = Session.getDefaultInstance(props, null);

// 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);
msg.setText(message);

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

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

System.out.println("\nMail was sent successfully.");
retValue = true;
} catch (Exception e) {
e.printStackTrace();
}
return retValue;
}

public static void main(String[] args)
{
if(args.length == 0)
{
System.out.println("Usage: java Mail <to> <subject> <from> <msg>\n");
System.exit(-1);
}
Mail.send(args[0], args[1],args[2], args[3]);
}
}