Example of sending attachment with email in Java

by Online Tutorials Library July 14, 2022

Sending email with attachment in Java

For sending email with attachment, JavaMail API provides some useful classes like BodyPart, MimeBodyPart etc.

For better understanding of this example, learn the steps of sending email using JavaMail API first.

For sending the email using JavaMail API, you need to load the two jar files:

mail.jar
activation.jar

download these jar files (or) go to the Oracle site to download the latest version.

Sending email with attachment using JavaMail API

There are total 7 steps for sending attachment with email. They are:

Get the session object
compose message
create MimeBodyPart object and set your message text
create new MimeBodyPart object and set DataHandler object to this object
create Multipart object and add MimeBodyPart objects to this object
set the multiplart object to the message object
send message

Example of sending email with attachment in Java

  import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*;  class SendAttachment{  public static void main(String [] args){    String to=”tutoraspire1987@gmail.com”;//change accordingly   final String user=”tutor.aspire@tutoraspire.com”;//change accordingly   final String password=”xxxxx”;//change accordingly     //1) get the session object      Properties properties = System.getProperties();   properties.setProperty(“mail.smtp.host”, “mail.tutoraspire.com”);   properties.put(“mail.smtp.auth”, “true”);    Session session = Session.getDefaultInstance(properties,    new javax.mail.Authenticator() {    protected PasswordAuthentication getPasswordAuthentication() {    return new PasswordAuthentication(user,password);    }   });       //2) compose message      try{     MimeMessage message = new MimeMessage(session);     message.setFrom(new InternetAddress(user));     message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));     message.setSubject(“Message Aleart”);          //3) create MimeBodyPart object and set your message text        BodyPart messageBodyPart1 = new MimeBodyPart();     messageBodyPart1.setText(“This is message body”);          //4) create new MimeBodyPart object and set DataHandler object to this object         MimeBodyPart messageBodyPart2 = new MimeBodyPart();      String filename = “SendAttachment.java”;//change accordingly     DataSource source = new FileDataSource(filename);     messageBodyPart2.setDataHandler(new DataHandler(source));     messageBodyPart2.setFileName(filename);             //5) create Multipart object and add MimeBodyPart objects to this object         Multipart multipart = new MimeMultipart();     multipart.addBodyPart(messageBodyPart1);     multipart.addBodyPart(messageBodyPart2);      //6) set the multiplart object to the message object     message.setContent(multipart );         //7) send message     Transport.send(message);      System.out.println(“message sent….”);    }catch (MessagingException ex) {ex.printStackTrace();}  } }  

download this example to send email with attachment

As you can see in the above example, total 7 steps are followed to send email with attachment. Now run this program by :

Load the jar file	c:> set classpath=mail.jar;activation.jar;.;
compile the source file	c:> javac SendAttachment.java
run by	c:> java SendAttachment

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