SpringMailService Utility Class

// This class contains  overloaded methods and has demonstrated all the features of spring mail inclusing velocity integration.
package com.packt.mailservice;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.javamail.MimeMessagePreparator;
import javax.mail.Message;
import java.util.Map;
import java.util.HashMap;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MailSenderService {
@Autowired
private VelocityEngine velocityEngine;
@Autowired
private MailSender mailSender;
@Autowired
private JavaMailSender javaMailSender;
@Autowired
private SimpleMailMessage configured_message;
public void sendmail(String from, String to, String subject, String body) throws MailException{
SimpleMailMessage message=new SimpleMailMessage();
message.setFrom(from);
message.setSubject(subject);
message.setText(body);
mailSender.send(message);
}
public void sendmail(String from, String []to, String subject, String body) throws MailException{
SimpleMailMessage message=new SimpleMailMessage();
message.setFrom(from);
message.setTo(to);
message.setSubject(subject);
message.setText(body);
mailSender.send(message);
}
public void sendmime_mail(final String from, final String to, final String subject, final String body) throws MailException{
MimeMessagePreparator message = new MimeMessagePreparator() {
               public void prepare(MimeMessage mimeMessage) throws Exception {
              message.setRecipient(Message.RecipientType.TO,new InternetAddress(to));
              message.setFrom(new InternetAddress(from));
              message.setSubject(subject);
              message.setText(msg);
            }

public void prepare(MimeMessage arg0) throws Exception {
// TODO Auto-generated method stub

}

    };
    mailSender.send(message);
}
public void sendmail(String from, String []to, String subject, String body,FileSystemResource file,String filename) throws MailException{
       MimeMessage mimemessage = mailSender.createMimeMessage();
       MimeMessageHelper mimemessagehelper = new MimeMessageHelper(message, true);
       mimemessagehelper.setFrom(from);
       mimemessagehelper.setTo(to);
       mimemessagehelper.setSubject(subject);
       mimemessagehelper.setText(msg);
       mimemessagehelper.addAttachment(filename, file);//image will be sent by this name
       mailSender.send(message);
     
}
public void sendmail(String message) throws MailException{
SimpleMailMessage message=new SimpleMailMessage(configured_message);
        mailSender.send(message);
     
}
public void sendmail(final Customer customer){
MimeMessagePreparator preparator = new MimeMessagePreparator() {
     public void prepare(MimeMessage mimeMessage)
          throws Exception {
       MimeMessageHelper message =
                             new MimeMessageHelper(mimeMessage);
       message.setTo(user.getEmailAddress());
           message.setFrom("webmaster@csonth.gov.uk"); // could be parameterized...
           Map model = new HashMap();
           model.put("customer", customer);
           String text = VelocityEngineUtils.mergeTemplateIntoString(
              velocityEngine, "com/packt/velocity/templates/orderconfirmation.vm", model);
           message.setText(text, true);
        }
     };
     this.mailSender.send(preparator);
  }
}