Calendar抽象类用法二

1：先查询外层-周

　　

Map finalmap = new HashMap();

Integer recourdCount = page * 12;//page为当前页数

VipUser user = vipUserService.selectVipuserByOpenId(openid);
Date createtime = user.getCreatetime();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd");
Calendar calendar = Calendar.getInstance();
Date date = new Date();
calendar.setTime(date);
Map map = new HashMap();
List<Week> listweek = new ArrayList<Week>();
for (int i = 0; i < recourdCount; i++) {
    //判断当前日期是否先于会员创建日期
    int weekno = calendar.get(Calendar.DAY_OF_WEEK) - 1;//计算今天是星期几
    int day = calendar.get(Calendar.DAY_OF_MONTH);//计算今天是几号
    calendar.add(Calendar.DATE, 1 - weekno - 1);
    Date date1 = calendar.getTime();//每周第一天时间
    calendar.add(Calendar.DATE, 6);
    Date date2 = calendar.getTime();//每周最后一天时间
    Integer week = calendar.get(Calendar.WEEK_OF_YEAR);//当前年份的多少周
    Week wk = new Week();
    wk.setDate1(sdf.format(date1));
    wk.setDate2(sdf.format(date2));
    wk.setWeek(week);
    wk.setYear(calendar.get(Calendar.YEAR));
    listweek.add(wk);
    calendar.add(Calendar.DATE, -7);
    Date time = calendar.getTime();
    if (time.getTime() >= createtime.getTime()) {
        finalmap.put("pageover", "true");
    } else {
        finalmap.put("pageover", "false");
        break;
    }
　　finalmap.put("listweek", listweek);


2：再查询内层：根据时间查询数据
　　
　　此处代码不予贴出，只是一个条件查询语句而已