中級課件擴展郵件收發(fā)javamail

第08章JavaMail收發(fā)郵件主要內(nèi)容§1

JavaMail技術(shù)綜述§2發(fā)送郵件§3接收郵件§1

JavaMail技術(shù)綜述E-mail基于簡單郵件傳輸協(xié)議（SimpleMailTransferProtocol,SMTP）。發(fā)送使用SMTP，接收使用POP3（PostOffice3）或IMAP（InternetMessageAccessProtocol）。參考：RFC821、RFC2821§2發(fā)送郵件Java包javax.mail.*;ernet.*;要素SMTP主機消息內(nèi)容例發(fā)送一封簡單郵件。參考：testMail.java說明（編程步驟）創(chuàng)建郵件Session構(gòu)造消息SMTP發(fā)送（MIME格式）發(fā)送帶附件的郵件。參考：testAttachMail.java說明構(gòu)造多段的MIME消息主體示例代碼java.util.Propertiesprops=newjava.util.Properties();props.setProperty("mail.host","");props.setProperty("mail.smtp.auth","true");Stringuser=MimeUtility.encodeText(request.getParameter("user"),"gb2312","B");Stringpass=MimeUtility.encodeText(request.getParameter("password"),"gb2312","B");Sessionsession=Session.getDefaultInstance(props,newMyAuthenticator(user,pass));Messagemsg=newMimeMessage(session);msg.setFrom(newInternetAddress(request.getParameter(“sender”)));//發(fā)件人msg.setRecipient(Message.RecipientType.TO,newInternetAddress(request.getParameter(“receiver”)));//收件人msg.setSentDate(newjava.util.Date());//發(fā)送時間msg.setSubject(request.getParameter(“subject”));//郵件主題msg.setContent(request.getParameter(“content”),“text/plain”);//文本消息Transport.send(msg);§3接收郵件接收郵件使用POP3或IMAP協(xié)議。例接收POP郵件。參考：testRecvMail.rar示例代碼Sessionsession=Session.getInstance(prop,null);//SessionStorestore=session.getStore("pop3");//Storestore.connect(pop3,user,pwd);//pop3地址形如".cn“Folderinbox=store.getFolder("INBOX");inbox.open(Folder.READ_ONLY);Messagemessages[]=inbox.getMessages();for(inti=0;messages!=null&&i<messages.length;i++){out.println(messages[i].getFrom()[0]+","+messages[i].getSentDate()+","+messages[i].getSize()+","+messages[i].g