博客

public static JSONObject getCurrentDateBeginAndEnd(int years, int type){
        Calendar begin = Calendar.getInstance();
        Calendar end = Calendar.getInstance();
        //年份
        int year = begin.get(Calendar.YEAR)+years;
        //月份
        int month = begin.get(Calendar.MONTH);
        //今天
        if(type == 1){
            begin.add(Calendar.DATE,0);
            end.add(Calendar.DATE,0);
        }
        //昨天
        if(type == 2){
            begin.add(Calendar.DATE,-1);
            end.add(Calendar.DATE,-1);
        }
        //计算周
        if(type == 3) {
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            begin.setWeekDate(year, week, 2);
            end.setWeekDate(year, week+1, 1);
        }
        //计算上周
        if(type == 4) {
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            begin.setWeekDate(year, week-1, 2);
            end.setWeekDate(year, week, 1);
        }
        //本月
        if(type == 5){
            begin.set(year, month, 1);
            //月的结束时间
            end.set(year, month + 1, 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }
        //上月
        if(type == 6){
            begin.set(year, month-1, 1);
            //月的结束时间
            end.set(year, month, 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }
        //季度
        if(type == 7) {
            //开始月
            int startMonth = month - month % 3;
            //结束月
            int endMonth = startMonth + 3;
            //月的开始时间
            begin.set(year, startMonth, 1);
            //月的结束时间
            end.set(year, endMonth, 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }
        //上季
        if(type == 8) {
            //开始月
            int startMonth = month - month % 3;
            //结束月
            int endMonth = startMonth + 3;
            //月的开始时间
            begin.set(year, startMonth-3, 1);
            //月的结束时间
            end.set(year, endMonth-3 , 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }
        //前天
        if(type == 11){
            begin.add(Calendar.DATE,-2);
            end.add(Calendar.DATE,-2);
        }
        //上周今天
        if(type == 12) {
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            Integer  day = begin.get(Calendar.DAY_OF_WEEK);

            begin.setWeekDate(year, week-1, day);
            end.setWeekDate(year, week-1, day);
        }
        //上月本周
        if(type == 13){
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            begin.setWeekDate(year, week-5, 2);
            end.setWeekDate(year, week-4, 1);
        }

        //前季
        if(type == 14) {
            //开始月
            int startMonth = month - month % 3;
            //结束月
            int endMonth = startMonth + 3;
            //月的开始时间
            begin.set(year, startMonth-6, 1);
            //月的结束时间
            end.set(year, month-5 , 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }
        //年
        if(type == 15){
            begin.set(year, 0, 1);
            end.set(year, 11, 31);
        }

        //前月
        if(type == 16){
            begin.set(year, month-2, 1);
            //月的结束时间
            end.set(year, month-1, 1);
            end.add(Calendar.DAY_OF_YEAR, -1);
        }

        //计算前周
        if(type == 17) {
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            begin.setWeekDate(year, week-2, 2);
            end.setWeekDate(year, week-1, 1);
        }
        //上周昨天
        if(type == 18) {
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            Integer  day = begin.get(Calendar.DAY_OF_WEEK);

            begin.setWeekDate(year, week-1, day-1);
            end.setWeekDate(year, week-1, day-1);
        }
        //上月上周
        if(type == 19){
            Integer  week = begin.get(Calendar.WEEK_OF_YEAR);
            begin.setWeekDate(year, week-6, 2);
            end.setWeekDate(year, week-5, 1);
        }
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
        //开始日期
        String beginStr = simpleDateFormat.format(begin.getTime());
        String endStr = simpleDateFormat.format(end.getTime());
        String[] result = {beginStr, endStr};
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("startDate",beginStr);
        jsonObject.put("endDate",endStr);
        return jsonObject;
    }