【一行代码解决问题】springboot 邮件附件中文乱码问题

开始设置

System.getProperties().setProperty("mail.mime.splitlongparameters", "false");

//MimeMessageHelper helper

helper.addAttachment(MimeUtility.encodeWord(attachmentFilename, "utf-8", "B"), file);

实验QQ outlook完美解决附件名称乱码问题