问JavaMail和换行

EN

"
Dear ñ ,


                     ABCDEFGHIJKLMNOPQRSTUVWXYZ. abcdefghijklmnopqrstuvwxyz. 1234567890. !@#$%^&*()_. Loren ipsum blahbity blahbity blah blah. WQWERTYUIOP{}ASDFGHJKL"ZXCVBNM<>


                   I am white spaces



"

"Dear ñ , ABCDEFGHIJKLMNOPQRSTUVWXYZ. abcdefghijklmnopqrstuvwxyz. 1234567890. !@#$%^&*()_. Loren ipsum blahbity blahbity blah blah.QWERTYUIOP{}ASDFGHJKL:"ZXCVBNM<> I am white spaces"

@Test
public void sendServiceTest() {
    String hostName = null;
    // Set up the SMTP server.
    Properties props = new Properties();
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.smtp.host", getHost);

    Session session = Session.getDefaultInstance(props);
    session.setDebug(true);

    Message msg = new MimeMessage(session);

    try {
        hostName = InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    try {
        msg.setFrom(new InternetAddress(hostName));
        InternetAddress manyAddressTo = null;
        // InternetAddress[] manyAddressCC = null;
        // InternetAddress[] manyAddressBCC = null;
        List<EmailRecipient> recipients = emailRecipientService
                .selectRecipientByCode("E1");

        manyAddressTo = new InternetAddress("sample@sample.com");

        msg.setRecipient(Message.RecipientType.TO, manyAddressTo);
        msg.setSubject(recipients.get(0).getEmailTemplate().getSubject());

        msg.setContent(recipients.get(0).getEmailTemplate().getEmail_body()+"\r\n","text/html; charset=utf-8");
        Transport.send(msg);

    } catch (MessagingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}