iCal4j的一些使用技巧

一些基本的操作在一下这个链接中都有
http://www.ibm.com/developerworks/cn/java/j-lo-ical4j/

做点补充
1.在Google gmail中如果想让邮件接收者直接添加日历到的日程当中需要如下设置：

    ParameterList pls = new ParameterList();
    pls.add(new Cn(mailInfo.getToEmail()));
    pls.add(new Rsvp(true));
    Attendee attendee = new Attendee(pls,mailInfo.getToEmail());
    attendee.setCalAddress(new URI("mailto:"+mailInfo.getToEmail()));
    vevent.getProperties().add(attendee);//参会者

2. 循环提醒，如果需要实现按周或者按每个月的第几天 或者每个月的第几周的第几天则需要构建 recur 具体代码如下：

public static Recur getRecurByCycle(ConfCycle cycle){
  if(cycle!=null){
   Recur recur = new Recur();
   //周期信息
   String cycleInfo = cycle.getCycleValue();
   String infos[] = cycleInfo.split(";");
  
   int index = 0 ;
   List<Integer> indexs = new ArrayList<Integer>();
   int seq = 0;
   if(infos.length == 1){
     String indexstr[] = infos[0].split(",");
     for (int i = 0; i < indexstr.length; i++) {
      indexs.add(Integer.parseInt(indexstr[i]));
     }
     index = indexs.get(0);
   
   }else if(infos.length == 2){
    seq = Integer.parseInt(infos[0]);
    index = Integer.parseInt(infos[1]);
   }
  
   //周期的类型
   int cycleType = cycle.getCycleType().intValue();
   switch (cycleType) {
//按间隔多少天循环
   case 1:
    recur.setFrequency(Recur.DAILY);
    recur.setInterval(index);
    break;
//按每一周的周几  可以是每一周的一天或者多天
   case 2:
    recur.setFrequency(Recur.WEEKLY);
    for (Integer weekday:indexs) {
     switch (weekday) {
     case 1:
      recur.getDayList().add(WeekDay.SU);
      break;
     case 2:
      recur.getDayList().add(WeekDay.MO);
      break;
     case 3:
      recur.getDayList().add(WeekDay.TU);
      break;
     case 4:
      recur.getDayList().add(WeekDay.WE);
      break;
     case 5:
      recur.getDayList().add(WeekDay.TH);
      break;
     case 6:
      recur.getDayList().add(WeekDay.FR);
      break;
     case 7:
      recur.getDayList().add(WeekDay.SA);
      break;
     default:
      throw new RuntimeException("un support week index!!!");
     }
    }
    break;
//按月循环 可以按每个月的第几天
   case 3:
    recur.setFrequency(Recur.MONTHLY);
//按每月的第几周的周几
    if(seq != 0){
     switch (index) {
     case 1:
      recur.getDayList().add(WeekDay.SU);
      break;
     case 2:
      recur.getDayList().add(WeekDay.MO);
      break;
     case 3:
      recur.getDayList().add(WeekDay.TU);
      break;
     case 4:
      recur.getDayList().add(WeekDay.WE);
      break;
     case 5:
      recur.getDayList().add(WeekDay.TH);
      break;
     case 6:
      recur.getDayList().add(WeekDay.FR);
      break;
     case 7:
      recur.getDayList().add(WeekDay.SA);
      break;
     default:
      throw new RuntimeException("un support week index!!!");
     }
     recur.getSetPosList().add(seq);

//按每月的第几天
    }else{
     recur.getMonthDayList().add(index);
    }
    break;
   default:
    throw new RuntimeException("un know cycle type! ");
    
   }
   boolean unlimited = cycle.getInfiniteFlag().intValue() == 0 ?false:true;
   //设置结束周期
   if (!unlimited) {
    int count = cycle.getRepeatCount();
    if(count>0){
     recur.setCount(count);
    }else{
     recur.setUntil(new net.fortuna.ical4j.model.Date(cycle.getEndDate()));
    }
   }
   return recur;
  }
  return null;
}