Question

我通过gmail向自己发送了一封中文电子邮件，我收到了以下标题

当我通过javax.mail发送中文电子邮件时，它在我的邮件浏览器中显示如下

失败电子邮件的标题如下：

我的代码如下：

    public boolean send() throws TestReportingException, MessagingException
    {
        try
        {

            String encodingOptions = "text/plain; charset=UTF-8";

            Authenticator authenticator = new Authenticator()
            {
                // override the getPasswordAuthentication method
                protected PasswordAuthentication getPasswordAuthentication()
                {
                    return new PasswordAuthentication(username, password);
                }
            };

            // Create the mail session
            Session session = Session.getInstance(maileProperties, authenticator);

            MimeMessage mimeMessage = new MimeMessage(session);
            mimeMessage.setHeader("Content-Type", encodingOptions);

            // Set From: header field of the header.
            mimeMessage.setFrom(new InternetAddress(from, fromName));

            // Set To: header field of the header.
            for (String s : toList)
            {
                if (null == s)
                {
                    throw new TestReportingException("Email address is null");
                }
                mimeMessage.addRecipients(Message.RecipientType.TO, InternetAddress.parse(s));
            }

            for (String s : ccList)
            {
                mimeMessage.addRecipients(Message.RecipientType.CC, InternetAddress.parse(s));
            }

            // Set Subject: header field
            mimeMessage.setSubject(subject,"UTF-8");

            // Create the message part
            //MimeBodyPart messageBodyPart = new MimeBodyPart();
        //    messageBodyPart.setContent(message, encodingOptions);

            // Create the message part
            MimeBodyPart messageBodyPart = new MimeBodyPart();
            mimeMessage.setHeader("Content-Type", encodingOptions);
            // Now set the actual message
            messageBodyPart.setText(message, "utf-8", "plain");

            // Now set the actual message
            //messageBodyPart.setText(message, "utf-8", "html");

            Multipart multipart = new MimeMultipart();

            // Set text message part
            multipart.addBodyPart(messageBodyPart);



            // Part two is attachment
            if (null != attachmentSource)
            {
                messageBodyPart = new MimeBodyPart();

                messageBodyPart.setDataHandler(new DataHandler(attachmentSource));
                messageBodyPart.setFileName(attachmentSource.getName());
                multipart.addBodyPart(messageBodyPart);

            }

            // Send the complete message parts
            mimeMessage.setContent(multipart);


            // Send message
            //Transport.send(mimeMessage);

            SSm.getLogger().debug("Subject: "+mimeMessage.getSubject());




            Transport.send(mimeMessage);

            SSm.getLogger().info("\n\nSent message successfully....");

            clear();

            return true;

        }
        catch (MessagingException mex)
        {
            SSm.getLogger().error(mex.getMessage());
            throw mex;
        }
        catch (Exception e)
        {
            SSm.getLogger().error(e.getMessage(), e);
            throw new TestReportingException(e.getMessage(), e);
        }
    }

属性是：

host = smtp.gmail.com
mail.smtp.auth =真
mail.smtp.starttls.enable = true mail.smtp.host = smtp.gmail.com
mail.smtp.port = 587 mail.mime.charset = UTF-8

备注：文本在发送之前未被破坏。 message.getSubject（）打印出干净的中文文本我猜测编码的方式有问题

修改

这是调试输出：

DEBUG：setDebug：JavaMail 1.5.5版

DEBUG：getProvider（）返回javax.mail.Provider [TRANSPORT，smtp，com.sun.mail.smtp.SMTPTransport，Oracle]

DEBUG SMTP：需要用户名和密码进行身份验证

DEBUG SMTP：useEhlo true，useAuth true

DEBUG SMTP：尝试连接到主机＆＃34; smtp.gmail.com＆＃34;，端口587，isSSL false

220 smtp.gmail.com ESMTP s20sm18171725pfg.11 - gsmtp

DEBUG SMTP：连接到主机＆＃34; smtp.gmail.com＆＃34;，端口：587

＆GT;

EHLO jake-yoga3.hitronhub.home

250-smtp.gmail.com为您服务，[96.49.181.179]

250-SIZE 35882577

250-8BITMIME

250 STARTTLS

250 ENHANCEDSTATUSCODES

250 PIPELINING

250 CHUNKING

250 SMTPUTF8

DEBUG SMTP：找到扩展名＆＃34; SIZE＆＃34;，arg＆＃34; 35882577＆＃34;

DEBUG SMTP：找到扩展名＆＃34; 8BITMIME＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; STARTTLS＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; ENHANCEDSTATUSCODES＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; PIPELINING＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; CHUNKING＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; SMTPUTF8＆＃34;，arg＆＃34;＆＃34;

STARTTLS

220 2.0.0准备启动TLS

EHLO jake-yoga3.hitronhub.home

250-smtp.gmail.com为您服务，[96.49.181.179]

250-SIZE 35882577

250-8BITMIME

250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH

250 ENHANCEDSTATUSCODES

250 PIPELINING

250 CHUNKING

250 SMTPUTF8

DEBUG SMTP：找到扩展名＆＃34; SIZE＆＃34;，arg＆＃34; 35882577＆＃34;

DEBUG SMTP：找到扩展名＆＃34; 8BITMIME＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; AUTH＆＃34;，arg＆＃34;登录平台XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH＆＃34;

DEBUG SMTP：找到扩展名＆＃34; ENHANCEDSTATUSCODES＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; PIPELINING＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; CHUNKING＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：找到扩展名＆＃34; SMTPUTF8＆＃34;，arg＆＃34;＆＃34;

DEBUG SMTP：尝试使用机制进行身份验证：LOGIN PLAIN DIGEST-MD5 NTLM XOAUTH2

DEBUG SMTP：使用机制LOGIN

DEBUG SMTP：AUTH LOGIN命令跟踪被抑制

DEBUG SMTP：AUTH LOGIN成功

DEBUG SMTP：use8bit false

MAIL FROM：

250 2.1.0 OK s20sm18171725pfg.11 - gsmtp

RCPT TO：

250 2.1.5 OK s20sm18171725pfg.11 - gsmtp

DEBUG SMTP：已验证的地址

DEBUG SMTP：JSTONE@I-KODA.COM

DATA

354来吧s20sm18171725pfg.11 - gsmtp

来自：iKoda报告

致：JSTONE@I-KODA.COM

消息ID：＆lt; 1926337998.1.1488002481716@jake-yoga3>

主题：=？UTF-8？B？QnZ4Y2Igw6TCuMKtIMOkwrjCrSDDpMK4wq0gw6TCuMKtIMOkwrjCrQ ==？=

MIME-Version：1.0

内容类型：multipart / mixed;
   boundary="----=_Part_0_1855484302.1488002481637"

＆GT;

------ = _ Part_0_1855484302.1488002481637

Content-Type：text / plain;字符集= UTF-8

Content-Transfer-Encoding：base64

＆GT;

RGVhciBaeGN2LA0KDQpCdnhjYiDDpMK4wq0gw6TCuMKtIMOkwrjCrSDDpMK4wq0gw6TCuMKtw6TC

uMKtIMOkwrjCrSDDpMK4wq0gw6TCuMKtIMOkwrjCrWh0dHBzOi8vd3d3Lmkta29kYS5jb20vZGVs

aXZlcnkvZHNmcj91ZnQ9MTAxMjc3MCZjPTEwMTI3NjTDpMK4wq0gw6TCuMKtIMOkwrjCrSDDpMK4

wq0gw6TCuMKt

------ = _ Part_0_1855484302.1488002481637 -



250 2.0.0 OK 1488002489 s20sm18171725pfg.11 - gsmtp

DEBUG SMTP：邮件已成功发送到邮件服务器

QUIT

221 2.0.0关闭连接s20sm18171725pfg.11 - gsmtp

[INFO]＆＃34; jake.app＆＃34; com.ikoda.service.utilities.EmailOut.send(EmailOut.java:256)01：27：

＆GT;

成功发送消息....

＆GT;

Answer 1

我发现了这个问题。问题不在电子邮件类中，只与javamail相关。（所以上面的代码是正确的）

问题在于从我的Controller中的Spring的MessageBundle的hotwired实例中提取文本。

我不正确地使用了以下代码，以便我的日志记录类可以记录从消息包中提取的字符串。

byte[] barray =messageSource.getMessage(code, null, LocaleContextHolder.getLocale()).getBytes(Charset.forName("UTF-8"));
    String s = new String(barray);

Log4j可以读取主题中的字符串和消息（由StringBuilder构建），这使我相信字符串是正确的UTF-8。但是，javax.mail在传输中出现乱码。

我应该做的是：

messageSource.getMessage(code, null, LocaleContextHolder.getLocale())

现在我的记录器刚刚获得???，但电子邮件发送得很好。

所以，保持简单愚蠢。

Java Mail：设置中文编码

1 个答案: