Email发送邮件使用ical4j将时间同步日历中

1.Maven依赖

<!--邮件-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!--ical4j-->
<dependency>
    <groupId>org.mnode.ical4j</groupId>
    <artifactId>ical4j</artifactId>
    <version>1.0.7</version>
</dependency>

2.认证

/**
 * 邮箱认证
 * @return
 */
private static JavaMailSenderImpl authEmail(){
    JavaMailSenderImpl javaMailSender=new JavaMailSenderImpl();
    javaMailSender.setHost(host);
    javaMailSender.setPort(port);
    javaMailSender.setUsername(email);
    javaMailSender.setPassword(pwd);
    //认证机制
    Properties properties=new Properties();
    //连接超时
    properties.setProperty("mail.smtp.connectiontimeout","10000");
    //开启认证
    properties.setProperty("mail.smtp.auth","true");
    //启动调试
    properties.setProperty("mail.debug","true");
    //设置端口
    properties.setProperty("mail.smtp.port",Integer.toString(465));
    //加密方式
    System.out.println("启用加密方式");
    properties.setProperty("mail.smtp.starttls.enable","true");
    properties.setProperty("mail.smtp.starttls.required","true");
    //是否设置ssl端口
    System.out.println("启用ssl");
    properties.setProperty("mail.smtp.socketFactory.port",prot);
    properties.setProperty("mail.smtp.socketFactory.fallback","false");
    properties.setProperty("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
    properties.setProperty("mail.smtp.socketFactory.enable","true");
    javaMailSender.setJavaMailProperties(properties);
    return javaMailSender;
}
/**
 * 测试连接
 * @param args
 */
public static void main(String[] args) {
    JavaMailSenderImpl javaMailSender = authEmail();
    try {
        javaMailSender.testConnection();
    } catch (MessagingException e) {
        e.printStackTrace();
    }
    System.out.println("成功");
}

3.发送

private void sendEmail() throws MessagingException, IOException, ValidationException, URISyntaxException {
    JavaMailSenderImpl javaMailSender = authEmail();
    MimeMessage message = javaMailSender.createMimeMessage();
    MimeMessageHelper messageHelper = new MimeMessageHelper(message, true, "UTF-8");
    //发送人邮箱
    messageHelper.setFrom("sendEmail");
    //接收者邮箱
    String[] tos={"invit2","invit2"};
    messageHelper.setTo(tos);
    //标题
    messageHelper.setSubject("信息通知：");
    //内容
    String content = content();
    MimeMultipart multipart=new MimeMultipart();
    MimeBodyPart bodyPart=new MimeBodyPart();
    bodyPart.setContent(content,"text/html;charset=UTF-8");
    //bodyPart.setText("会议在15分钟后");
    multipart.addBodyPart(bodyPart);
    //是否加入日历
    if (true){
        String calendar = getCalendar();
        BodyPart bodyPartCal=new MimeBodyPart();
        bodyPartCal.setDataHandler(new DataHandler(
                new ByteArrayDataSource(calendar,"text/calendar;method=REQUEST;charset=\"UTF-8\"")));
        multipart.addBodyPart(bodyPartCal);
    }
    message.setContent(multipart);
    message.setSentDate(new Date());
    //保存
    message.saveChanges();
    //发送
    javaMailSender.send(message);
}

3.日历-创建日程

/**
 * 邮箱添加到日历
 * @return
 */
private String getCalendar() throws SocketException, ValidationException, URISyntaxException {
    //设置时区
    TimeZoneRegistry zoneRegistry = TimeZoneRegistryFactory.getInstance().createRegistry();
    net.fortuna.ical4j.model.TimeZone timeZone = zoneRegistry.getTimeZone("Asia/Shanghai");
    VTimeZone tz = timeZone.getVTimeZone();
    //创建日历
    net.fortuna.ical4j.model.Calendar calendar=new net.fortuna.ical4j.model.Calendar();
    calendar.getProperties().add(Version.VERSION_2_0);
    // -//Events Calendar//iCal4j 1.0//EN
    calendar.getProperties().add(new ProdId("-//Ben Fortuna//iCal4j 1.0//EN"));
    calendar.getProperties().add(CalScale.GREGORIAN);
    calendar.getProperties().add(Method.REQUEST);
    //开始时间 接收时间
    LocalDateTime currDate = LocalDateTime.now().plusDays(1L).with(LocalTime.MIN);
    LocalDateTime start = currDate.with(LocalTime.parse("11:00"));
    LocalDateTime end = currDate.with(LocalTime.parse("12:15"));
    DateTime startTime =new DateTime(start.toInstant(ZonedDateTime.now().getOffset()).toEpochMilli());
    startTime.setTimeZone(timeZone);
    DateTime endTime =new DateTime(end.toInstant(ZonedDateTime.now().getOffset()).toEpochMilli());
    endTime.setTimeZone(timeZone);
    //创建事件
    VEvent vEvent=new VEvent(startTime,endTime,"信息通知");
    //地址
    vEvent.getProperties().add(new Location("测试园区-F4"));
    //唯一标识
    vEvent.getProperties().add(new Uid(new UidGenerator("iCal4j").generateUid().getValue()));
    //时区
    vEvent.getProperties().add(tz.getTimeZoneId());
    //组织者
    Organizer organizer=new Organizer("mailto:email");
    organizer.getParameters().add(new Cn("Booked or person"));
    vEvent.getProperties().add(organizer);
    //邀请者
    String[] tos={};
    for (int i = 0; i < tos.length; i++) {
        Attendee dev = new Attendee(URI.create("mailto:"+tos[i]));
        dev.getParameters().add(Role.REQ_PARTICIPANT);
        dev.getParameters().add(new Cn("Developer"+i));
        vEvent.getProperties().add(dev);
    }
    // 重复事件
//        Recur recur = new Recur(Recur.WEEKLY, Integer.MAX_VALUE);
//        recur.getDayList().add(WeekDay.MO);
//        recur.getDayList().add(WeekDay.TU);
//        recur.getDayList().add(WeekDay.WE);
//        recur.getDayList().add(WeekDay.TH);
//        recur.getDayList().add(WeekDay.FR);
//        RRule rule = new RRule(recur);
//        vEvent.getProperties().add(rule);
    // 提醒,提前10分钟
    VAlarm valarm = new VAlarm(new Dur(0, 0, -10, 0));
    valarm.getProperties().add(new Summary("预订信息"));
    valarm.getProperties().add(Action.DISPLAY);
    valarm.getProperties().add(new Description("会议信息预订一个计划"));
    // 将VAlarm加入VEvent
    vEvent.getAlarms().add(valarm);
    // 添加事件
    calendar.getComponents().add(vEvent);
    // 验证
    calendar.validate();
    return calendar.toString();
}