Java: Open default mail application and create new mail and populate To and Subject fields

java email uri default mailto
Mike picture Mike · Mar 1, 2010 · Viewed 14.9k times · Source

Just wondering if anyone can help me with a problem I've come across in Java.

Is there functionality within Java to produce a section of code that will open the default email application on a user's PC? (I guess almost like a fancy mailto link...)

If there is - is it possible to populate fields such as the To and Subject fields?

Thanks, Mike.

Answer

sfussenegger picture sfussenegger · Mar 1, 2010

Desktop.mail(URI mailtoURI) is your friend!

Javadoc:

Launches the mail composing window of the user default mail client, filling the message fields specified by a mailto: URI.

A mailto: URI can specify message fields including "to", "cc", "subject", "body", etc. See The mailto URL scheme (RFC 2368) for the mailto: URI specification details.

Example Code:

Desktop desktop;
if (Desktop.isDesktopSupported() 
    && (desktop = Desktop.getDesktop()).isSupported(Desktop.Action.MAIL)) {
  URI mailto = new URI("mailto:[email protected]?subject=Hello%20World");
  desktop.mail(mailto);
} else {
  // TODO fallback to some Runtime.exec(..) voodoo?
  throw new RuntimeException("desktop doesn't support mailto; mail is dead anyway ;)");
}

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