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Java email garbled complete solution, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

The solution to the garbled code of java sending email:

/ / set email subject message.setSubject (MimeUtility.encodeText (mail_subject,MimeUtility.mimeCharset ("gb2312"), null); message.setContent (sendmessage, "text/html;charset=gbk"); / / format email message.setSentDate (new Date ()); / / set email delivery date / / set email sender name Address address = new InternetAddress (usernames, MimeUtility.encodeText (personalName,MimeUtility.mimeCharset ("gb2312"), null))

When a Text or HTML is sent by e-mail, the sent content is first converted into a "byte string" by a specified character encoding, and then the "byte string" is converted to another "byte string" by a specified transmission code (Content-Transfer-Encoding).

The title of the message is marked with "character encoding" and "transmission coding" in a shorter format.

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1. Set the encoding format when constructing MimeMessageHelper

@ Resourceprivate JavaMailSender javaMailSender;@Testpublic void mimeMailTest () throws MessagingException {String email = "xxx-xxx@163.com"; String mailCode = 123456789 new MimeMessageHelper / create a multi-purpose mail message object MimeMessage mailMessage = javaMailSender.createMimeMessage (); / / create a mail message assistant (parameter 2: set to true, indicating that hyperlinks, attachments can be sent) MimeMessageHelper messageHelper = new MimeMessageHelper (mailMessage, true, "UTF-8"); messageHelper.setTo ("xxx-xxx@163.com") MessageHelper.setFrom ("xxx-xxx@163.com"); messageHelper.setSubject ("Registration reminder"); String text = "register successfully, click activate"; / / Parameter 2 indicates whether to send it in html format. If not, plain text messageHelper.setText (text, true); javaMailSender.send (mailMessage);} will be sent.

two。 The encoding is not set when constructing MimeMessageHelper, but when using the setContent () method of MimeMessage

@ Testpublic void mimeMailTest2 () throws MessagingException {String email = "xxx-xxx@163.com"; String mailCode = 123456789 / create a multi-purpose mail message object MimeMessage mailMessage = javaMailSender.createMimeMessage (); / / create a mail message assistant MimeMessageHelper messageHelper = new MimeMessageHelper (mailMessage); messageHelper.setTo ("xxx-xxx@163.com"); messageHelper.setFrom ("xxx-xxx@163.com"); messageHelper.setSubject ("Registration reminder 2"); String text = "Registration successful 2, click activate" / / Parameter 2: send mailMessage.setContent (text, "text/html;charset=UTF-8") in html format; javaMailSender.send (mailMessage);}

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