利用ical4j和javamail发送会议邀请实现邮件发送提醒功能

基于JavaMail的日历(会议)邮件发送实现

/**
     *
     * @param senderAccount 发件人账号
     * @param senderPassword 发件人密码
     * @param toAddress      收件人邮箱地址
     * @param ccAddress      抄送人地址
     * @param noticeTitle     subject的标题
     * @param noticeContent   subject的内容
     * @param criticalityClass  邮件重要性等级
     * @param workShop         车间
     * @param line             线体
     * @param attachmentPath    附件路径
     * @return
     */
    private String sendEmailUtil(String senderAccount, String senderPassword,
                                 String toAddress, String ccAddress, String noticeTitle,String noticeContent,String criticalityClass,String workShop,String line,String attachmentPath) {
        String from=senderAccount+"@sunwoda.com";
        String to=toAddress;
        String location="车间:"+workShop+"  线体:"+line;
        final String sendAccount=senderAccount;
        final String sendPwd=senderPassword;
        // 链接邮件服务器                                                                                                                                                  
        Properties props = new Properties();
        props.put("mail.transport.protocol", "smtp"); // 邮件协议                                                                                                       
        props.put("mail.smtp.host", "smtp.sunwoda.com"); // 服务器域名                                                                                                   
        props.put("mail.smtp.auth", "true");         //设置用户的认证方式            

        Authenticator auth = new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                String username = sendAccount; // 大多数是你邮件@前面的部分                                                                                                   
                String pwd = sendPwd;
                return new PasswordAuthentication(username, pwd);
            }
        };
        Session mailSession = Session.getInstance(props, auth);
        // 获取Message对象                                                                                                                                              
        Message msg = new MimeMessage(mailSession);
        try {
            // 设置邮件基本信息                                                                                                                                             
            msg.setFrom(new InternetAddress(from));
            msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(toAddress));                                                                                  
                /*if (toAddress != null && !toAddress.isEmpty()){
                     InternetAddress[] cc = new InternetAddress().parse(toAddress);
                     msg.setRecipients(Message.RecipientType.TO,cc);
                 }*/

            if (ccAddress != null && !ccAddress.isEmpty()){
                InternetAddress[] cc = new InternetAddress().parse(ccAddress);
                msg.setRecipients(Message.RecipientType.CC,cc);
            }
            msg.setSentDate(new java.util.Date());
            msg.setSubject(noticeTitle);
            msg.addHeader("ReturnReceipt", "1");
            if(criticalityClass.equals("高")){
                msg.addHeader("X-Priority", "1");
            }else if(criticalityClass.equals("中")){
                msg.addHeader("X-Priority", "3");
            }else{
                msg.addHeader("X-Priority", "5");
            }

            // 获取不同类型的邮件的邮件内容                                                                                                                                       
            Multipart mp = getContentText(from,to,location,noticeTitle,noticeContent,criticalityClass,attachmentPath);
            msg.setContent(mp);
            msg.saveChanges();
            Transport.send(msg);

            //发送完后删除临时文件
            int index=attachmentPath.indexOf('/');
            String savePath = StringUtils.getStr(new String[] { this.importFilePath});
            String fileName=attachmentPath.substring(index+1);
            File file = new File(savePath+File.separator+fileName);
            file.delete();

            return "OK";
        } catch (Exception ex) {
            ex.printStackTrace();
            String errorInfo= ex.getMessage().substring(0,3);
            if(errorInfo.equals("535")){
                return "发件人邮箱账号或密码错误!";
            }else{
                return "收件人或抄送人邮箱地址错误!";
            }
        }
    }

    private Multipart getContentText(String from,String to,String location1,String noticeTitle,String noticeContent,
                                     String criticalityClass,String attachmentPath) throws  Exception {
        String subject =noticeTitle+"-"+noticeContent;//主题里带内容
        String content=noticeContent;
        //取附件路径和名称
        int index=attachmentPath.indexOf('/');
        String filePath="/"+attachmentPath.substring(0, index);
        String fileName=attachmentPath.substring(index+1);
        // 时区                                                                                                                                                       
        TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
        TimeZone timezone = registry.getTimeZone("Asia/Shanghai");
        // 会议地点                                                                                                                                                     
        String location = location1;
        // 会议时间                                                                                                                                                     
        java.util.Calendar cal = java.util.Calendar.getInstance();
        int year=cal.get(java.util.Calendar.YEAR);
        int month=cal.get(java.util.Calendar.MONTH) + 1;
        int day=cal.get(java.util.Calendar.DAY_OF_MONTH);
        int hour=cal.get(java.util.Calendar.HOUR_OF_DAY);
        int minute=cal.get(java.util.Calendar.MINUTE)+5;

        cal.setTimeZone(timezone);
        cal.set(year, month - 1, day, hour, minute); // 月份是要早一个月                                                                                                               
        DateTime start = new DateTime(cal.getTime());
        cal.set(year, month - 1, day, hour+8, minute);
        DateTime end = new DateTime(cal.getTime());

        VEvent vevent = new VEvent(start, end, subject);
        vevent.getProperties().add(timezone.getVTimeZone().getTimeZoneId());// 时区                                                                                   
        vevent.getProperties().add(new Location(location));// 会议地点        
        vevent.getProperties().add(new Description("公告内容:"+"\n"+content));// 邮件内容                                                                                                
        vevent.getProperties().add(new UidGenerator("uidGen").generateUid());// 设置uid                                                                               
        //组织者                                                                                                                                                       
        vevent.getProperties().add(new Organizer(URI.create("mailto:" + from)));
        // 与会人                                                                                                                                                      
        Set<String> emailSet = new HashSet<String>();
        emailSet.add(from);
        emailSet.add(to);
        int i = 1;
        for (String email : emailSet) {
            Attendee attendee = new Attendee(URI.create("mailto:" + email));
            if (1 == i) {
                attendee.getParameters().add(Role.REQ_PARTICIPANT);
            } else {
                attendee.getParameters().add(Role.OPT_PARTICIPANT);
            }
            attendee.getParameters().add(new Cn("Developer" + i));
            vevent.getProperties().add(attendee);
            i++;
        }
        // --------VEvent Over----------                                                                                                                            
        // --------VAlarm Start----------                                                                                                                           
        // 提醒,提前5分钟                                                                                                                                                 
        VAlarm valarm = new VAlarm(new Dur(0, 0, -5, 0));
        valarm.getProperties().add(new Repeat(10));
        valarm.getProperties().add(new Duration(new Dur(0, 0, 5, 0)));
        // 提醒窗口显示的文字信息                                                                                                                                              
        valarm.getProperties().add(new Summary("Event Alarm"));
        valarm.getProperties().add(Action.DISPLAY);
        valarm.getProperties().add(new Description("会议提醒描述,待定,不确定使用方式"));
        vevent.getAlarms().add(valarm);// 将VAlarm加入VEvent                                                                                                           
        // --------VAlarm Over-------------                                                                                                                         
        // --------日历对象 Start---------------                                                                                                                        
        Calendar icsCalendar = new Calendar();
        icsCalendar.getProperties().add(new ProdId("-//Events Calendar//iCal4j 1.0//EN"));
        icsCalendar.getProperties().add(Version.VERSION_2_0);
        icsCalendar.getProperties().add(CalScale.GREGORIAN);
        icsCalendar.getProperties().add(timezone.getVTimeZone().getTimeZoneId());
        icsCalendar.getComponents().add(vevent);// 将VEvent加入Calendar    

        // 将日历对象转换为二进制流                                                                                                                                             
        CalendarOutputter co = new CalendarOutputter(false);
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        co.output(icsCalendar, os);
        byte[] mailbytes = os.toByteArray();

        // 9. 创建附件"节点"
        MimeBodyPart attachment = new MimeBodyPart();
        //从FTP上下载文件到本地       
        String savePath = StringUtils.getStr(new String[] { this.importFilePath});

        downFileFroFTP("192.168.x.xxx", 21, "xxxxxx", "xxxxx", filePath,fileName, savePath);

        // 读取本地文件
        DataHandler dh2 = new DataHandler(new FileDataSource(savePath+File.separator+fileName));
        // 将附件数据添加到"节点"
        attachment.setDataHandler(dh2);
        // 设置附件的文件名(需要编码)
        attachment.setFileName(MimeUtility.encodeText(dh2.getName()));


        // --------日历对象 Over------------------             
        MimeMultipart mm = new MimeMultipart();
        MimeBodyPart iCalAttachment = new MimeBodyPart();
        iCalAttachment.setDataHandler(new DataHandler(new ByteArrayDataSource(new ByteArrayInputStream(mailbytes),
                "text/calendar;method=REQUEST;charset=UTF-8")));
        mm.addBodyPart(iCalAttachment);
        mm.addBodyPart(attachment);     // 添加附件
        mm.setSubType("related");
        return mm;
    }

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转载自www.cnblogs.com/xidianlxf/p/11032982.html