我有一个使用 javamail api 阅读电子邮件的类，我面临的问题是，当我从 gmail 发送包含 .msg 附件的邮件时，我的代码可以轻松阅读，但是当我为 Outlook 发送相同的邮件时客户端，“.msg”附件不显示
我的课的代码如下：
public class TestEmail {
static int count = 5;
static String ipAddress[] = Utility.getipAddress();
static String auth[] = Utility.getEmailPasswd();
private static final String SMTP_AUTH_USER = auth[0];
private static final String SMTP_AUTH_PWD = auth[1];
private static String defaultServer=ipAddress[1];
private static String domainServer=ipAddress[0];
public static void main(String[] args) throws Exception {
/*************** Variable Declaration *********************/
System.out.println("SMTP_AUTH_USER <><> " + SMTP_AUTH_USER);
System.out.println("SMTP_AUTH_PWD <><> " + SMTP_AUTH_PWD);
System.out.println("defaultServer <><> " + defaultServer);
System.out.println("domainServer <><> " + domainServer);
int noOfEmail = 0;
String from = "", replyTo = "", to = "", subject = "", cc = "", bcc = "", msgId = "";
Date sentDate = new Date();
String fileName = "";
/************** End of Variable Declaration ****************/
Properties props = System.getProperties();
props.put("mail.smtp.submitter", new MailAuthenticator());
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", domainServer);
props.put("mail.smtp.port", "25");
props.put("mail.imap.port", "143");
props.put("mail.smtp.localhost", defaultServer);
// props.put("mail.debug", "true");
props.put("mail.smtp.starttls.enable", "true");
Session session = Session.getDefaultInstance(props,new MailAuthenticator());
// Store store = session.getStore("pop3");
Store store = session.getStore("imap");
store.connect(domainServer, null, null);
// session.setDebug(true);
/************ Reading Inbox *********/
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_WRITE);
/************ No of Email *********/
noOfEmail = inbox.getMessageCount();
System.out.println("No Of Mail <><> " + noOfEmail);
/******** Search Unread Messase ********/
FlagTerm ft = new FlagTerm(new Flags(Flags.Flag.SEEN), false);
Message messages[] = inbox.search(ft);
System.out.println("Total UNREAD MESSAGE <><> " + messages.length);
/*********** Traverse The Messase *******/
for (int i = 0; i < messages.length; i++) {
Message message = messages[i];
String contentType = message.getContentType ();
String content = Utility.splitContentType(contentType);
boolean multiPart = false;
if (content.equalsIgnoreCase("mixed")) {
multiPart = true;
} else {
multiPart = false;
}
if (multiPart == true) {
Multipart mp = (Multipart) message.getContent();
for (int j = 0, n = mp.getCount(); j < n; j++) {
// System.out.println("n Valuev <<><> " + n);
Part part = mp.getBodyPart(j);
BodyPart bodyPart = mp.getBodyPart(j);
String disposition = part.getDisposition();
// System.out.println("disposition <><><><> " + disposition);
if ((disposition != null)&& ((disposition.equals(Part.ATTACHMENT) || (disposition.equals(Part.INLINE))))) {
System.out.println("INSIDE IF ATTACHMENT");
fileName = bodyPart.getFileName();
System.out.println("fileName <><> " + fileName);
String ext = Utility.splitFileName(fileName);
if(ext.equalsIgnoreCase("msg")){
System.out.println("INSIDE MSG");
saveFile(fileName, part.getInputStream());
// File emlFile = new File("C:/test/" + fileName); // For Windows
File emlFile = new File("/usr/AirtelMail/" + fileName);
InputStream source = new FileInputStream(emlFile);
MimeMessage message1 = new MimeMessage(session, source);
from = InternetAddress.toString(message1.getFrom());
replyTo = InternetAddress.toString(message1
.getReplyTo());
to = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.TO));
cc = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.CC));
bcc = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.BCC));
subject = message1.getSubject();
sentDate = message1.getSentDate();
msgId = message1.getMessageID();
if (from != null && replyTo != null && to != null
&& subject != null && sentDate != null) {
System.out.println("From: " + from);
System.out.println("Reply-to: " + replyTo);
System.out.println("To: " + to);
System.out.println("Subject: " + subject);
System.out.println("Sent Date: " + sentDate);
}
}else if(ext.equalsIgnoreCase("eml")){
System.out.println("INSIDE EML");
saveFile(fileName, part.getInputStream());
// File emlFile = new File("C:/test/" + fileName); // For Windows
File emlFile = new File("/usr/AirtelMail/" + fileName);
InputStream source = new FileInputStream(emlFile);
MimeMessage message1 = new MimeMessage(session, source);
from = InternetAddress.toString(message1.getFrom());
replyTo = InternetAddress.toString(message1
.getReplyTo());
to = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.TO));
cc = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.CC));
bcc = InternetAddress.toString(message1
.getRecipients(Message.RecipientType.BCC));
subject = message1.getSubject();
sentDate = message1.getSentDate();
msgId = message1.getMessageID();
if (from != null && replyTo != null && to != null
&& subject != null && sentDate != null) {
// System.out.println("From: " + from);
// System.out.println("Reply-to: " + replyTo);
// System.out.println("To: " + to);
// System.out.println("Subject: " + subject);
// System.out.println("Sent Date: " + sentDate);
}
}else{
System.out.println("INSIDE NOT EML");
from = InternetAddress.toString(message.getFrom());
replyTo = InternetAddress.toString(message.getReplyTo());
to = InternetAddress.toString(message
.getRecipients(Message.RecipientType.TO));
cc = InternetAddress.toString(message
.getRecipients(Message.RecipientType.CC));
bcc = InternetAddress.toString(message
.getRecipients(Message.RecipientType.BCC));
subject = message.getSubject();
sentDate = message.getSentDate();
msgId = "";
if (from != null && replyTo != null && to != null
&& subject != null && sentDate != null) {
// System.out.println("From: " + from);
// System.out.println("Reply-to: " + replyTo);
// System.out.println("To: " + to);
// System.out.println("Subject: " + subject);
// System.out.println("Sent Date: " + sentDate);
}
}// End Else
}// End Check disposition
} // End of j loop
} else {
System.out.println("INSIDE IF NOT ATTACHMENT");
from = InternetAddress.toString(message.getFrom());
replyTo = InternetAddress.toString(message.getReplyTo());
to = InternetAddress.toString(message
.getRecipients(Message.RecipientType.TO));
to = InternetAddress.toString(message
.getRecipients(Message.RecipientType.TO));
cc = InternetAddress.toString(message
.getRecipients(Message.RecipientType.CC));
bcc = InternetAddress.toString(message
.getRecipients(Message.RecipientType.BCC));
subject = message.getSubject();
sentDate = message.getSentDate();
msgId = "";
if (from != null && replyTo != null && to != null
&& subject != null && sentDate != null) {
System.out.println("From: " + from);
System.out.println("Reply-to: " + replyTo);
System.out.println("To: " + to);
System.out.println("Subject: " + subject);
System.out.println("Sent Date: " + sentDate);
}
}
// System.out.println("cccccccc <><> " + cc);
// Getting Email List if TO OR CC OR BCC has more than 1 email ID
ArrayList<String> toEmailList = new ArrayList<String>();
ArrayList<String> ccEmailList = new ArrayList<String>();
ArrayList<String> bccEmailList = new ArrayList<String>();
if(to != null){
toEmailList = Utility.getEmailList(to);
}
if(cc != null){
ccEmailList = Utility.getEmailList(to);
}
if(bcc!= null){
bccEmailList = Utility.getEmailList(to);
}
// String toEmailList[] = Utility.getEmailList(to);
// String ccEmailList[] = Utility.getEmailList(cc);
// String bccEmailList[] = Utility.getEmailList(bcc);
// Get LEA EmailID
boolean toCheck = false, ccCheck = false, bccCheck = false;
int count = 0;
if(toEmailList.size() != 0){
for(int k = 0;k<toEmailList.size();k++){
String email = toEmailList.get(k);
String trackLeadId = Utility.splitEmail(email);
System.out.println("trackLeadId Value<><>" + trackLeadId);
String templeaEmailID[] = Utility.getFwdMailId(trackLeadId);
String leaEmailID = templeaEmailID[0];
String nodalOffID = templeaEmailID[1];
System.out.println("leaEmailID <><><> " + leaEmailID);
if(leaEmailID != null){
TestEmail.SendMail(leaEmailID, from, message, session, subject, msgId);
toCheck = true;
System.out.println("Mail Forwarded");
Utility.insertInfo(leaEmailID, trackLeadId, nodalOffID);
}
// else{
// message.setFlag(Flags.Flag.DELETED, true);
// System.out.println("Mail Deleted");
// }
}// ENd of K Loop
}
if(ccEmailList.size() != 0){
for(int l = 0;l<ccEmailList.size();l++){
String email = ccEmailList.get(l);
String trackLeadId = Utility.splitEmail(email);
System.out.println("trackLeadId Value<><>" + trackLeadId);
String templeaEmailID[] = Utility.getFwdMailId(trackLeadId);
String leaEmailID = templeaEmailID[0];
String nodalOffID = templeaEmailID[1];
System.out.println("leaEmailID <><><> " + leaEmailID);
if(leaEmailID != null){
TestEmail.SendMail(leaEmailID, from, message, session, subject, msgId);
ccCheck = true;
System.out.println("Mail Forwarded");
Utility.insertInfo(leaEmailID, trackLeadId, nodalOffID);
}
}// ENd of L Loop
}
if(bccEmailList.size() != 0){
for(int m = 0;m<bccEmailList.size();m++){
String email = bccEmailList.get(m);
String trackLeadId = Utility.splitEmail(email);
System.out.println("trackLeadId Value<><>" + trackLeadId);
String templeaEmailID[] = Utility.getFwdMailId(trackLeadId);
String leaEmailID = templeaEmailID[0];
String nodalOffID = templeaEmailID[1];
System.out.println("leaEmailID <><><> " + leaEmailID);
if(leaEmailID != null){
TestEmail.SendMail(leaEmailID, from, message, session, subject, msgId);
bccCheck = true;
System.out.println("Mail Forwarded");
Utility.insertInfo(leaEmailID, trackLeadId, nodalOffID);
}
}// ENd of M Loop
}
if(ccEmailList.size() == 0 || bccEmailList.size() == 0){
if(toCheck == false){
message.setFlag(Flags.Flag.DELETED, true);
System.out.println("Mail Deleted");
}
}
if(toCheck == false && ccCheck == false && bccCheck ==false){
message.setFlag(Flags.Flag.DELETED, true);
System.out.println("Mail Deleted");
}
} // End of i Loop
inbox.close(true);
}
}
两种情况的控制台输出都是
从 Outlook 发送时：
INSIDE IF ATTACHMENT
fileName <><> null
从 gmail 发送时：
INSIDE IF ATTACHMENT
fileName <><> "Attachment name".msg
任何帮助将不胜感激。