如何使用JavaMailSenderImpl发送UTF-8编码的电子邮件正文?

问题描述 投票:5回答:2

我通过这种方式发送电子邮件:

@Test
public void testEmailCharacterSet() throws MessagingException, UnsupportedEncodingException {
    JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
    mailSender.setDefaultEncoding("utf-8");
    mailSender.setHost("*****");
    mailSender.setUsername("*****");
    mailSender.setPassword("*****");

    Properties properties = new Properties();
    properties.setProperty("mail.mime.charset", "utf-8");

    mailSender.setJavaMailProperties(properties);

    MimeMessage mimeMessage = mailSender.createMimeMessage();
    MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, false, "utf-8");
    mimeMessage.setContent("Árvíztűrő tükörfúrógép 3", "text/html"); 
    helper.setFrom("[email protected]");
    helper.setTo("[email protected]");

    mailSender.send(mimeMessage);
}

如您所见,我将在所有地方都设置utf-8。我的问题是传出的原始字节仍在Latin1中,至少这是我在Wireshark中看到的内容:

Date: Sun, 17 May 2015 18:16:21 +0200 (CEST)
From: [email protected]
To: [email protected]
Message-ID: <13648335.0.1431879381653.JavaMail.foo@foo-dell>
MIME-Version: 1.0
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

=C1rv=EDzt?r? t=FCk=F6rf=FAr=F3g=E9p 3
.

所以标题基本上说的是UTF-8,但是传出的字节已经在问号和where处出现问号,这是Latin1中缺少的两个字符。 JVM的file.encoding不是UTF-8,但我正在寻找一种保持原样并仅在电子邮件方面解决此问题的方法。

谢谢!

更新

我以前已经成功地使用了普通的旧方法发送电子邮件,有趣的是它仍然有效:

Message mimeMessage = new MimeMessage(session);
mimeMessage.setContent("Árvíztűrő tükörfúrógép 7 oldschool", "text/html; charset=utf-8"); 

因此,这显然仅是JavaMailSenderImpl特有的内容。

java email encoding utf-8
2个回答
2
投票

如果添加此行:

properties.setProperty("mail.smtp.allow8bitmime", "true");
properties.setProperty("mail.smtps.allow8bitmime", "true");

在您的代码中,邮件的Content-Transfer-Encoding:标头设置为8bit,邮件可以阅读。


1
投票

这对我有用-link

mailSender.send(new MimeMessagePreparator() {
   public void prepare(MimeMessage mimeMessage) throws MessagingException {
     MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true, "UTF-8");
     message.setFrom("[email protected]");
     message.setTo("[email protected]");
     message.setSubject("my subject");
     message.setText("my text <img src='cid:myLogo'>", true);
     message.addInline("myLogo", new ClassPathResource("img/mylogo.gif"));
     message.addAttachment("myDocument.pdf", new ClassPathResource("doc/myDocument.pdf"));
   }
 });
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