我试图在javamail，mimemessage的帮助下发送Outlook邀请，并且一切正常，直到2019年5月为止，但是现在不是带有接受拒绝选项的邀请，而是不支持邀请ics文件附件的邮件。请查看我的代码，让我知道如何解决此问题。
以下代码生成的ICS文件如下所示：
BEGIN:VCALENDAR METHOD:REQUEST PRODID:Microsoft Exchange Server VERSION:2.0 BEGIN:VEVENT DTSTAMP:20190716T130000Z DTSTART:20190716T130000Z DTEND:20190716T140000Z SUMMARY:Candidate Interview Invite: Testing Prod UID:4839441021 ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Nandi":MAILTO:some@value ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Nandi":MAILTO:some@value ACTION;RSVP=TRUE;CN="some@value":MAILTO:some@value ORGANIZER;CN="RCN":mailto:some@value LOCATION:test DESCRIPTION:Candidate Interview Invite: Testing Prod SEQUENCE:0 PRIORITY:5 CLASS:PRIVATE STATUS:CONFIRMED X-MICROSOFT-CDO-BUSYSTATUS:BUSY X-MICROSOFT-CDO-INSTTYPE:0 X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY X-MICROSOFT-CDO-ALLDAYEVENT:FALSE X-MICROSOFT-CDO-IMPORTANCE:1 X-MICROSOFT-CDO-OWNERAPPTID:-1 TRANSP:OPAQUE BEGIN:VALARM ACTION:DISPLAY DESCRIPTION:REMINDER TRIGGER;RELATED=START:-PT00H15M00S END:VALARM END:VEVENT END:VCALENDAR
public class EmailInvite{
final Logger log = Logger.getLogger(EmailInvite.class);
@SuppressWarnings("unchecked")
public long sendInterviewInvite(Map<String, Object> params,
String location, String organizerEmail, String[] interviewers) throws Exception {
log.info("Send Interview Invite method");
log.info("location: "+location);
log.info("organizerEmail: "+organizerEmail);
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", "some value");
properties.setProperty("mail.smtp.port", " some value");
Session session = Session.getDefaultInstance(properties);
Calendar startCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
startCal.setTime((Date) params.get("interviewDate"));
startCal.set(Calendar.HOUR_OF_DAY,
((Long) params.get("interviewHour")).intValue());
startCal.set(Calendar.MINUTE,
((Long) params.get("interviewMinute")).intValue());
startCal.set(Calendar.SECOND, 0);
Date interviewDate = (Date) params.get("interviewDate");
int hour = ((Long) params.get("interviewHour")).intValue();
int minute = ((Long) params.get("interviewMinute")).intValue();
String gmtOffset = (String) params.get("interviewTimeZone");
int offsetInt = 0;
int gmtOffMins = 0;
if (gmtOffset.indexOf(":") > 0) {
String offsetVal = gmtOffset.substring(3, gmtOffset.indexOf(":"));
if (offsetVal.contains("+")) {
if (gmtOffset.endsWith("30"))
gmtOffMins = 30;
offsetVal = offsetVal.substring(1);
} else {
if (gmtOffset.endsWith("30"))
gmtOffMins = -30;
}
offsetInt = Integer.valueOf(offsetVal);
}
Calendar endCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
endCal.set(Calendar.HOUR_OF_DAY, startCal.get(Calendar.HOUR_OF_DAY));
endCal.set(Calendar.MINUTE, startCal.get(Calendar.MINUTE));
String intType = (String) params.get("interviewType");
if (intType.equals("Sreening") || intType.equals("Comprehensive"))
endCal.add(Calendar.MINUTE, 60);
else
endCal.add(Calendar.MINUTE, 30);
SimpleDateFormat format = new SimpleDateFormat("EEEE MMMM dd, yyyy");
@SuppressWarnings("rawtypes")
Map model = new HashMap();
model.putAll(params);
model.put("organizerEmail", organizerEmail);
model.put("interviewCoordinatorName", "RCN");
model.put("iasFormLink", iasFormLink.toString());
model.put("interviewDateFmt",
format.format((Date) params.get("interviewDate")));
String text = "xyzxyz<br>thanks<br>Chinmoy
text = text.replace("${iasFormLink}", iasFormLink.toString());
String subject;
if (intType.equals("some value "))
subject = intType + " " + "invite";
else
subject = "Candidate Interview Invite: "
+ params.get("candidateName");
MimetypesFileTypeMap mimetypes = (MimetypesFileTypeMap) MimetypesFileTypeMap
.getDefaultFileTypeMap();
mimetypes.addMimeTypes("text/calendar ics ICS");
// register the handling of text/calendar mime type
MailcapCommandMap mailcap = (MailcapCommandMap) MailcapCommandMap
.getDefaultCommandMap();
mailcap.addMailcap("text/calendar;; x-java-content-handler=com.sun.mail.handlers.text_plain");
MimeMessage mimeMessage = new MimeMessage(session);
Multipart multipart = new MimeMultipart("mixed");
int cnt = 0;
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent(text, "text/html; charset=UTF-8");
multipart.addBodyPart(messageBodyPart, cnt++);
String organizerName = "RCN";
long guid = (long) Math.floor(Math.random() * 9000000000L) + 1000000000L;
BodyPart calendarPart = buildCalendarPart(organizerName,organizerEmail, interviewers, subject, location, hour, minute,endCal.get(Calendar.HOUR_OF_DAY), endCal.get(Calendar.MINUTE),interviewDate, offsetInt, gmtOffMins, guid, false);
multipart.addBodyPart(calendarPart, cnt);
mimeMessage.setContent(multipart);
mimeMessage.setFrom(new InternetAddress("some value "));
mimeMessage.setSubject(subject);
Address[] toAddr = new InternetAddress[interviewers.length];
for (int i = 0; i < interviewers.length; i++) {
Address a = new InternetAddress(interviewers[i]);
toAddr[i] = a;
}
mimeMessage.addRecipients(RecipientType.TO, toAddr);
Transport.send(mimeMessage);
return guid;
}
private BodyPart buildCalendarPart(String organizerName,
String organizerEmail, String[] attendees, String subject,
String location, int hour, int minute, int endHour, int
endMinute, Date interviewDate, int offsetInt, int gmtOffMins, long guid,
boolean cancel) throws Exception {
log.info("Build Calendar Part");
SimpleDateFormat iCalendarDateFormat = new SimpleDateFormat(
"yyyyMMdd'T'HHmmss'Z'");
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
Calendar cal = Calendar.getInstance();
cal.setTime(interviewDate);
int startTzHr = hour - offsetInt;
int startTznOffMin = minute - gmtOffMins;
if (endHour == 0)
endHour = 24;
int endTzHr = endHour - offsetInt;
int endTzOffMin = endMinute - gmtOffMins;
if (startTzHr > 23) {
startTzHr = startTzHr - 24;
if (endHour != 0)
endTzHr = endTzHr - 24;
cal.add(Calendar.DAY_OF_YEAR, 1);
}
if (gmtOffMins < 0 && minute >= 30)
startTzHr++;
if (gmtOffMins < 0 && endMinute >= 30)
endTzHr++;
if (gmtOffMins > 0 && minute == 0)
startTzHr--;
if (gmtOffMins > 0 && endMinute == 0)
endTzHr--;
if (startTznOffMin == 60)
startTznOffMin = 0;
if (endTzOffMin == 60)
endTzOffMin = 0;
int stMin = Math.abs(startTznOffMin);
int endMin = Math.abs(endTzOffMin);
StringBuffer startFmtBuffer = new StringBuffer();
startFmtBuffer.append(sdf.format(cal.getTime())).append("T")
.append(startTzHr < 10 ? "0" + startTzHr : startTzHr)
.append(stMin == 0 ? "00" : stMin).append("00").append("Z");
StringBuffer endFmtBuffer = new StringBuffer();
endFmtBuffer.append(sdf.format(cal.getTime())).append("T")
.append(endTzHr < 10 ? "0" + endTzHr : endTzHr)
.append(endMin == 0 ? "00" : endMin).append("00").append("Z");
log.info(startFmtBuffer+" --- "+endFmtBuffer);
BodyPart calendarPart = new MimeBodyPart();
StringBuffer attendeesData = new StringBuffer();
for (int i = 0; i < attendees.length; i++) {
attendeesData
.append("ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=\"")
.append("Nandi")
.append("\":MAILTO:").append(attendees[i]).append("\r\n");
}
String calendarContent = "BEGIN:VCALENDAR\n" + "METHOD:"
+ (cancel ? "CANCEL" : "REQUEST")
+ "\r\n"
+ "PRODID:Microsoft Exchange Server\r\n"
+ "VERSION:2.0\r\n"
+ "BEGIN:VEVENT\r\n"
+
"DTSTAMP:" + startFmtBuffer.toString() + "\n" + "DTSTART:"
+ startFmtBuffer.toString() + "\n" + "DTEND:"
+ endFmtBuffer.toString() + "\n" + "SUMMARY:" + subject + "\n"
+ "UID:" + guid + "\n" + attendeesData + "ACTION;RSVP=TRUE;"
+ "CN=\"" + organizerEmail + "\":MAILTO:" + organizerEmail
+ "\r\n" + "ORGANIZER;CN=\"" + organizerName + "\":mailto:"
+ organizerEmail + "\r\n" + "LOCATION:" + location + "\n"
+ "DESCRIPTION:" + subject + "\n" + "SEQUENCE:0\n"
+ "PRIORITY:5\n" + "CLASS:PRIVATE\n" + "STATUS:"
+ (cancel ? "CANCEL" : "CONFIRMED") + "\n"
+ "X-MICROSOFT-CDO-BUSYSTATUS:BUSY\r\n"
+ "X-MICROSOFT-CDO-INSTTYPE:0\r\n"
+ "X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY\r\n"
+ "X-MICROSOFT-CDO-ALLDAYEVENT:FALSE\r\n"
+ "X-MICROSOFT-CDO-IMPORTANCE:1\r\n"
+ "X-MICROSOFT-CDO-OWNERAPPTID:-1\r\n" + "TRANSP:OPAQUE\n";
if (!cancel) {
calendarContent += "BEGIN:VALARM\n" + "ACTION:DISPLAY\n"
+ "DESCRIPTION:REMINDER\n"
+ "TRIGGER;RELATED=START:-PT00H15M00S\n" + "END:VALARM\n";
}
calendarContent += "END:VEVENT\n" + "END:VCALENDAR";
log.info(calendarContent);
calendarPart.addHeader("Content-Class",
"urn:content-classes:calendarmessage");
calendarPart.setContent(calendarContent, "text/calendar;method=CANCEL");
return calendarPart;
}
我想在Outlook中收到带有接受拒绝选项的邀请邮件，而不是附件。并且仅使用javamail。