I'm trying to send an email using Java code but running from GroovyConsole. It works fine for when I just send an email without attachments but it fails as soon as I add in the multipart logic for attachments.
EDIT: I'm using Javamail version 1.4.7
This is the error I'm getting.
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed;
boundary="----=_Part_16_24710054.1375885523061"
at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:891)
and it's happening on the line Transport.send(mimeMsg) below.
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
Properties properties = new Properties()
Session session
MimeMessage mimeMsg
properties.put("mail.smtp.host", "[my host ip]")
session = Session.getDefaultInstance(properties)
mimeMsg = new MimeMessage(session)
String recipient = "[to email address]"
mimeMsg.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient))
mimeMsg.setSubject("This is the subject")
mimeMsg.setText("This is the message #1")
mimeMsg.setFrom(new InternetAddress("[from email address]"))
BodyPart messageBodyPart = new MimeBodyPart()
messageBodyPart.setText(mimeMsg.getContent())
Multipart multipart = new MimeMultipart()
String filePath = "[full & correct path to test.txt]"
DataSource source = new FileDataSource(filePath)
messageBodyPart.setDataHandler(new DataHandler(source))
String fileName = "test.txt"
messageBodyPart.setFileName("test.txt")
multipart.addBodyPart(messageBodyPart)
mimeMsg.setContent(multipart)
Transport.send(mimeMsg)
println "Message Sent!"
I think it's a classloader issue to do with the way GroovyConsole runs...
If I add the following @Grab
and @GrabcConfig
to the script, it works...
@Grab( 'javax.mail:mail:1.4.7' )
@GrabConfig(systemClassLoader=true, initContextClassLoader=true)
import javax.mail.*
import javax.mail.internet.*
import javax.activation.*
def props = new Properties().with { p ->
p.'mail.smtp.host' = 'my mail server'
p
}
def session = Session.getDefaultInstance( props )
def message = new MimeMessage( session )
message.addRecipient( Message.RecipientType.TO, new InternetAddress( 'to address' ) )
message.subject = 'This is the subject'
message.text = 'This is the message #1'
message.from = new InternetAddress( 'from address' )
def textpart = new MimeBodyPart()
textpart.text = 'This is the message #2'
def attachment = new MimeBodyPart()
attachment.dataHandler = new DataHandler( new FileDataSource( '/path/to/file.txt' ) )
attachment.fileName = 'file.txt'
def multi = new MimeMultipart()
multi.addBodyPart( textpart )
multi.addBodyPart( attachment )
message.content = multi
Transport.send( message )
Or, remove the two @Grab
and @GrabConfig
lines, and run it from the command line with:
groovy -cp /path/to/mail-1.4.7.jar:/path/to/activation-1.1.jar mail.groovy