Sending emails in Spring using Freemarker

Create a mail sender

  <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="localhost">
    <property name="port" value="25">
  </bean>

Create the freemarker configuration

  <bean id="freemarkerMailConfiguration" class="org.springframework.ui.freemarker.FreeMarkerConfigurationFactoryBean">
    <property name="templateLoaderPath" value="/WEB-INF/mail">
  </bean>

Create a class for sending the mail:

public class InfoSenderMail implements InfoSender {

    private Configuration configuration;
    private String freemarkerTemplate;
    private MailSender mailSender;

    public void send() throws SendException {
        SimpleMailMessage message = new SimpleMailMessage();

        // Add stuff to them model for inserting into the template
        final Map model = new HashMap();
        model.put("name", "Tim");

        // Merge the model into the template
        final String result;
        try {
            result = FreeMarkerTemplateUtils.processTemplateIntoString(configuration.getTemplate(
                        freemarkerTemplate), model);
        } catch (IOException e) {
            throw new SendException(
                "Unable to read or process freemarker configuration or template", e);
        } catch (TemplateException e) {
            throw new SendException("Problem initializing freemarker or rendering template '"
                + freemarkerTemplate + "'", e);
        }

        // Construct and send the message
        message.setTo("someone@somewhere.com");
        message.setSubject("Here is the info you requested");
        message.setText(result);

        mailSender.send(message);
    }

    public void setFreemarkerMailConfiguration(Configuration configuration) {
        this.configuration = configuration;
    }

    public void setFreemarkerTemplate(String freemarkerTemplate) {
        this.freemarkerTemplate = freemarkerTemplate;
    }

    public void setMailSender(MailSender mailSender) {
        this.mailSender = mailSender;
    }

}

Define the bean; the template should be in the location specified by templateLoaderPath (e.g. /WEB-INF/mail)

  <bean id="infoSender" class="InfoSenderMail"
    <property name="mailSender" ref="mailSender">
    <property name="freemarkerMailConfiguration" ref="freemarkerMailConfiguration">
    <property name="freemarkerTemplate" value="mytemplate.txt">
  </bean>

Create the template. E.g. mytemplate.txt

  Hello, ${name}!

Then simply inject the bean in another class and invoke send();