Prepare for the Future With Legacy Application Modernization

This method is a simple way to send an email with WebClient.

1. Create a function with these fields:
   1. toEmail: Recipient’s email
   2. fromEmail: Sender’s email
   3. subject: Subject from the email
   4. body: Message part from the email
   5. attachmentFileLocation(OPTIONAL): path from the file we will send as attachment

 

2. Add a source code object call “sendEmail” to your function.

 

3. Add the following fields as parameters to the “sendEmail” source code:

4. Copy the following code and paste it into the “sendEmail” source code:

import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;

// Recipient's email 
String toEmail = & (1: ).toString();

// Sender's email ID 
String fromEmail = & (2: ).toString();

// Set email host 
String hostEmail = "YOUR EMAIL HOST";

// Get system properties 
Properties propertiesEmail = System.getProperties();

// Setup mail server 
propertiesEmail.setProperty("mail.smtp.host", hostEmail);

// Get the default Session object. 
Session sessionEmail = Session.getDefaultInstance(propertiesEmail);

try {
    // Create a default MimeMessage object. 
    MimeMessage message = new MimeMessage(sessionEmail);

    // Set From 
    message.setFrom(new InternetAddress(fromEmail));

    // Set To 
    message.addRecipient(Message.RecipientType.TO, new InternetAddress(toEmail));

    // Set Subject 
    message.setSubject( & (3: ).toString());

    if ( & (5: ).toString().length() != 0) {
        // Create the message part  
        BodyPart messageBodyPart = new MimeBodyPart();

        // Fill the message 
        messageBodyPart.setText( & (4: ).toString());

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

        // Set text message part 
        multipartEmail.addBodyPart(messageBodyPart);

        // Part two is attachment 
        messageBodyPart = new MimeBodyPart();
        String filenameEmail = & (5: ).toString().replace('\\', '/');
        DataSource sourceEmail = new FileDataSource(filenameEmail);
        messageBodyPart.setDataHandler(new DataHandler(sourceEmail));
        messageBodyPart.setFileName(filenameEmail);
        multipartEmail.addBodyPart(messageBodyPart);

        // Send the complete message parts 
        message.setContent(multipartEmail);
    } else {
        // Send the message 
        message.setText( & (4: ).toString());
    }

    // Definition of supported File Types  
    MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
    mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");

    // Send message 
    CommandMap.setDefaultCommandMap(mc);

    Transport.send(message);
    System.out.println("Sent message successfully....");
} catch (MessagingException mex) {
    mex.printStackTrace();
}

 

5. Change the value from the variable “hostEmail” to your host email.

6. Add a button called “Send” and a logical event called “sendEmail” in your function.

 

7. In the Action Diagram for the event “sendEmail” call the source code you created.

 

8. Generate your function and test it.

This is a simple example of how send mails with WebClient. Remember that you can modify the source code and function as you need.