JCart: Email Service SetUp

We are going to implement Admin User Forgot Password functionality where we need to send the Password Reset link to User email address. So let us look at how to configure Email server and send emails.

Spring provides support for sending Emails using JavaMailSender. SpringBoot makes it even easier by providing a starter for emailing support.

As we need Emailing feature in both Admin and ShoppingCart modules, we will implement the emailing functionality in jcart-core module.

Add the following dependency to jcart-core/pom.xml

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

Add the following properties in jcart-core/src/main/resources/application.properties

################### JavaMail Configuration ##########################

## If you want to use GMail ##
spring.mail.host=smtp.gmail.com
spring.mail.port=465
spring.mail.protocol=smtps
spring.mail.username=sivalabs.blogspot@gmail.com
spring.mail.password=secret
spring.mail.properties.mail.transport.protocol=smtps
spring.mail.properties.mail.smtps.auth=true
spring.mail.properties.mail.smtps.starttls.enable=true
spring.mail.properties.mail.smtps.timeout=2000

## If you want to use YahooMail ##
#spring.mail.host=smtp.mail.yahoo.com
#spring.mail.port=465
#spring.mail.username=sivaprasadreddy_k@yahoo.co.in
#spring.mail.password=secret
#spring.mail.properties.mail.transport.protocol=smtps
#spring.mail.properties.mail.smtp.auth=true
#spring.mail.properties.mail.smtp.starttls.enable=true

support.email=sivalabs.blogspot@gmail.com

Let us create EmailService class as follows:

@Component
public class EmailService 
{
 @Autowired 
 JavaMailSender javaMailSender;
 
 @Value("${support.email}") 
 String supportEmail;
 
    public void sendEmail(String to, String subject, String content)
 {
        try
  {
         // Prepare message using a Spring helper
            final MimeMessage mimeMessage = this.javaMailSender.createMimeMessage();
            final MimeMessageHelper message = new MimeMessageHelper(mimeMessage, "UTF-8");
            message.setSubject(subject);
            message.setFrom(supportEmail);
            message.setTo(to);
            message.setText(content, true /* isHtml */);
            
   javaMailSender.send(message.getMimeMessage());
  } 
        catch (MailException | MessagingException e)
  {
         logger.error(e);
   throw new JCartException("Unable to send email");
  }
 } 
}

Write a simple Test to check whether it is working or not.

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = JCartCoreApplication.class)
public class JCartCoreApplicationTest
{
 @Autowired EmailService emailService;

 @Test
 public void testSendEmail()
 {
  emailService.sendEmail("admin@gmail.com", "JCart - Test Mail", "This is a test email from JCart");
 } 
}