File upload using enterprise form

1

Hi,

I have a form with file upload field. I want to get that file(.pdf/.jpg etc.) using eform in my backend(Java class) and send over the email as an attachment.

Thanks in advance

2

Hi @K_Prasad ,

To handle file uploads in your form and send them as email attachments using Java, you can follow these steps:

  1. File Upload Handling in the Form
    Ensure that your form includes a file upload field. When the form is submitted, the file will be temporarily stored on the server

  2. Retrieve the Uploaded File in the Backend:
    In your Java backend, you can use the org.apache.commons.io.FileCleaningTracker to keep track of the uploaded files. This ensures that the files are managed and cleaned up appropriately after they are processed

  3. Send the File as an Email Attachment
    Use the javax.mail library to send emails with attachments. You need to create a MimeMessage and add the file as a MimeBodyPart.

Here is a sample code snippet to illustrate these steps:

import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.io.File;
import java.util.Properties;

public class EmailSender {

    public void sendEmailWithAttachment(String to, String subject, String body, File file) throws MessagingException {
        // Set up the mail server properties
        Properties properties = new Properties();
        properties.put("mail.smtp.host", "smtp.example.com");
        properties.put("mail.smtp.port", "587");
        properties.put("mail.smtp.auth", "true");
        properties.put("mail.smtp.starttls.enable", "true");

        // Create a session with an authenticator
        Session session = Session.getInstance(properties, new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("your-email@example.com", "your-password");
            }
        });

        // Create a new email message
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("your-email@example.com"));
        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
        message.setSubject(subject);

        // Create a multipart message for attachment
        Multipart multipart = new MimeMultipart();

        // Set the email body text
        MimeBodyPart textBodyPart = new MimeBodyPart();
        textBodyPart.setText(body);
        multipart.addBodyPart(textBodyPart);

        // Add the file as an attachment
        MimeBodyPart attachmentBodyPart = new MimeBodyPart();
        DataSource source = new FileDataSource(file);
        attachmentBodyPart.setDataHandler(new DataHandler(source));
        attachmentBodyPart.setFileName(file.getName());
        multipart.addBodyPart(attachmentBodyPart);

        // Set the complete message parts
        message.setContent(multipart);

        // Send the email
        Transport.send(message);
    }
}

Important Notes:

  • Ensure that the javax.mail and javax.activation libraries are included in your project dependencies.
  • Handle any potential LinkageError issues by ensuring that the correct versions of the libraries are used and that there are no conflicting versions in your classpath. You might need to exclude certain dependencies from your project as mentioned in the context.

By following these steps, you should be able to handle file uploads in your form and send them as email attachments using Java.

Best Regards,
Bloomreach Team.