java获取指定倒退或向前的时间工具类

深藏阁楼爱情的钟 2022-09-12 12:59 178阅读 0赞

//获取当前时间向后推一天
        public static String getDayAfterOne(){
            SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            c.add(Calendar.DAY_OF_MONTH, 1);
            return sf.format(c.getTime());
        }
    
        //获取给定时间向后推一天
        public static String getSpecialDayAdd(String date){
            SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            try{
                c.setTime(d.parse(date));
                c.add(Calendar.DAY_OF_MONTH, 1);
                String t = d.format(c.getTime());
                System.out.println(t);
                return t;
            }catch (Exception e){
                e.printStackTrace();
            }
            return null;
        }
    
        /**
         * 获取当前时间向前推一天
         * @return
         */
        public static String getNowDayBeforeOne(){
            SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            c.add(Calendar.DAY_OF_MONTH, -1);
            return sf.format(c.getTime());
        }
    
        /**
         * 获取当前时间向前推7天
         * @return
         */
        public static String getNowDayBefore7(){
            SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            c.add(Calendar.DAY_OF_MONTH, -7);
            return sf.format(c.getTime());
        }
    
        /**
         * 获取指定时间向前推一天
         * @return
         */
        public static String getSpecialDayBeforeOne(String timestr){
            SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            try{
                c.setTime(sf.parse(timestr));
                c.add(Calendar.DAY_OF_MONTH, -1);
                return sf.format(c.getTime());
            }catch (Exception e){
                e.printStackTrace();
            }
            return null;
        }
    
        /**
         * 获取指定区间内的时间
         * @param queryParams
         * @return
         */
        public Map getSpecialDuringTime(Map queryParams){
            Map map = new HashMap();
            String tartTime = null;
            String endTime = null;
            if(queryParams.get("startTime") == null || "".equals(queryParams.get("startTime"))){
                //如果前端没有传开始时间，则默认查7天时间
                tartTime = getNowDayBefore7();
                map.put("startTime",tartTime);
            }else{
                //给定时间向前推一天
                tartTime = getSpecialDayBeforeOne(queryParams.get("startTime").toString());
                map.put("startTime",tartTime);
            }
            //结束时间
            if(queryParams.get("endTime") == null || "".equals(queryParams.get("endTime"))){
                // endTime = new SimpleDateFormat("yyyy-MM-dd-hh.mm.ss").format(new Date());
                //如果前端没有传截至时间
                endTime = getDayAfterOne();
                map.put("endTime",endTime);
            }else{
                //如果传入了，则查询指定时间后推一天
                //endTime = queryParams.get("endTime").toString();
                endTime = getSpecialDayAdd(queryParams.get("endTime").toString());
                map.put("endTime",endTime);
            }
            return map;
        }