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How do you create email message that contains text and HTML version for the same content?
Of course I would like to know how to setup the freemarker template or the header of the message that will be send.
When I look on the source of message multi-part message in MIME format that I receive in inbox every once in while this is what is in there:
This is a multi-part message in MIME format.
------=_NextPart_000_B10D_01CBAAA8.F29DB300
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
...Text here...
------=_NextPart_000_B10D_01CBAAA8.F29DB300
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<html><body> html code here ... </body></html>
748
If you spot any inconsistencies please let me know. I had to extract this from pretty complex object so that's why this looks like it does.
//some important imports
import freemarker.template.Template;
import org.springframework.mail.javamail.*;
import org.springframework.context.*;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import javax.mail.internet.MimeMessage;
private JavaMailSender mailSender;
private MessageSource messageSource;
private ExecutorService executor = Executors.newFixedThreadPool(50);
MimeMessagePreparator preparator = new MimeMessagePreparator() {
public void prepare(MimeMessage mimeMessage) throws Exception {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage);
message.setFrom(from);
message.setTo(recipient);
message.setSubject(subject);
// Now the message body.
Multipart mp = new MimeMultipart();
BodyPart textPart = new MimeBodyPart();
Template textTemplate = freemarkerConfig.getConfiguration().getTemplate(textEmailTemplate); // "/WEB-INF/emailText/*.ftl"
final StringWriter textWriter = new StringWriter();
textEmailTemplate.process(modelMap, textWriter);
textPart.setText(textWriter.toString()); // sets type to "text/plain"
BodyPart pixPart = new MimeBodyPart();
Template pixTemplate = freemarkerConfig.getConfiguration().getTemplate(pixEmailTemplate); // "/WEB-INF/emailPix/*.ftl"
final StringWriter pixWriter = new StringWriter();
textEmailTemplate.process(modelMap, pixWriter);
pixPart.setContent(pixWriter.toString(), "text/html");
// Collect the Parts into the MultiPart
mp.addBodyPart(textPart);
mp.addBodyPart(pixPart);
// Put the MultiPart into the Message
message.setContent(mp);
}
};
executor.submit(new SendMail(preparator));
class SendMail extends Thread {
MimeMessagePreparator preparator;
SendMail(MimeMessagePreparator preparator) {
this.preparator = preparator;
}
public void run() {
mailSender.send(preparator);
}
}
When using Spring you can do:
String plainText = "MyPleinText";
String htmlText = "<html><body><h1>MyHTML</h1></body></html>";
MimeMessage message = this.mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true, MAIL_ENCODING);
helper.setText(plainText,htmlText);
And it will do the job. There is no Freemarker stuff involved.
The MailSender can be:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${smtp.host}" />
<property name="port" value="${smtp.port}" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
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