最近在写JavaMail接收Gmail邮件的NetBeans插件,发现一个问题。。。。
下面是连接邮件账户与接收邮件的代码片断:
/*** conncect to the gmail account.
* @param userName user name
* @param userPassword user password
* @throws Exception
*/
private static void connect(String userName, String userPassword)
throws Exception {
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
Properties props = System.getProperties();
props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.pop3.socketFactory.fallback", "false");
props.setProperty("mail.pop3.port", "995");
props.setProperty("mail.pop3.socketFactory.port", "995");
props.setProperty("mail.imap.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.imap.socketFactory.fallback", "false");
props.setProperty("mail.imap.port", "993");
props.setProperty("mail.imap.socketFactory.port", "993");
Session session = Session.getDefaultInstance(props, null);
session.setDebug(true); // set debug
// URLName urln = new URLName("pop3s", "pop.gmail.com", 995, null,
// userName, userPassword);
URLName urln = new URLName("imap", "imap.gmail.com", 993, null, userName,
userPassword);
store = session.getStore(urln);
store.connect();
}
/**
* Retieve all new messages.
* @param userName user name
* @param userPassword user password
* @return all new messages
* @throws Exception
*/
public Message[] getNewMails(String userName, String userPassword)
throws Exception {
if (!store.isConnected()) {
connect(userName, userPassword);
}
Folder inbox = store.getFolder("Inbox");
inbox.open(Folder.READ_ONLY);
FetchProfile profile = new FetchProfile();
profile.add(FetchProfile.Item.ENVELOPE);
if (inbox.getUnreadMessageCount() > 0) {
int fetchCount = inbox.getMessageCount() - inbox.getUnreadMessageCount();
if (fetchCount == 0) {
return inbox.getMessages();
}
Message[] messages = inbox.getMessages(1, 2);
return messages;
} else {
System.out.println("No any new mail!");
throw new RuntimeException("No any new mail!");
}
}
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