JavaMail附件邀请时间区域问题

1. 将系统时区设置为UTC时区。

TimeZone.setDefault(TimeZone.getTimeZone("UTC"));

2. 使用SimpleDateFormat将日期格式化为UTC时区。

SimpleDateFormat dateFormatUTC = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"); dateFormatUTC.setTimeZone(TimeZone.getTimeZone("UTC"));

3. 在邮件中设置日期格式为UTC时区的时间字符串。

message.setHeader("Content-class", "urn:content-classes:calendarmessage"); String startTime = dateFormatUTC.format(eventStart); String endTime = dateFormatUTC.format(eventEnd);

StringBuffer buffer = new StringBuffer(); buffer.append("BEGIN:VCALENDAR\n"); buffer.append("PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN\n"); buffer.append("VERSION:1.0\n"); buffer.append("BEGIN:VEVENT\n"); buffer.append("DTSTART:"+startTime+"\n"); buffer.append("DTEND:"+endTime+"\n"); buffer.append("LOCATION:"+location+"\n"); buffer.append("UID:"+uid+"\n"); buffer.append("DESCRIPTION:"+description+"\n"); buffer.append("X-ALT-DESC;FMTTYPE=text/html:"+description+"\n"); buffer.append("SUMMARY:"+summary+"\n"); buffer.append("PRIORITY:5\n"); buffer.append("END:VEVENT\n"); buffer.append("END:VCALENDAR");

MimeBodyPart calendarPart = new MimeBodyPart(); calendarPart.setHeader("Content-class", "urn:content- classes:calendarmessage"); calendarPart.setHeader("Content-ID", "calendar_message"); calendarPart.setDataHandler(new DataHandler(new ByteArrayDataSource(buffer.toString(), "text/calendar")));

4. 在邮件中添加附件。

Multipart multipart = new MimeMultipart(); multipart.addBodyPart(textPart); multipart.addBodyPart(calendarPart);

if (attachment != null) { MimeBodyPart filePart = new MimeBodyPart(); FileDataSource fileDataSource = new FileDataSource(attachment); filePart.setDataHandler(new DataHandler(fileDataSource)); filePart.setFileName(fileDataSource.getName()); multipart.addBodyPart(filePart); }

message.setContent(multipart);