通过Spring 3 JavaMail创建MIME格式的Freemarker模板的多部分消息 [英] Create multi-part message in MIME format Freemarker template via Spring 3 JavaMail
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问题描述
如何为同一内容创建包含文本和HTML版本的电子邮件？
How do you create email message that contains text and HTML version for the same content?
当然，我想知道如何设置freemarker模板或将要发送的消息的标题。
Of course I would like to know how to setup the freemarker template or the header of the message that will be send.
当我查看收件箱中收到的MIME格式的消息多部分消息的源，每次都在这里，这是什么：
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>
推荐答案
如果发现任何不一致，请让我知道。我不得不从相当复杂的对象中提取出来，这就是为什么看起来像这样。
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);
}
}
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