Calendar cal=Calendar.getInstance();//获取当前日期
cal.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天
cal.add(Calendar.MONTH,1);//月增加1天
cal.add(Calendar.DAY_OF_MONTH,-1);//日期倒数一日,既得到本月最后一天
Calendar calender=Calendar.getInstance();
calender.set(Calendar.DAY_OF_MONTH,1);
//当前时间两天后的0点
calender.set(Calendar.HOUR_OF_DAY, 0);
calender.set(Calendar.SECOND, 0);
calender.set(Calendar.MINUTE, 0);
calender.set(Calendar.MILLISECOND, 0);
userExtMedical.setReportAt(calender.getTimeInMillis());