時間工具類

/**
     * 獲取前一天開始時間
     * @return
     */
    public static String getStartTime() {
        Calendar todayStart = Calendar.getInstance();
        todayStart.add(Calendar.DATE,-1);
        todayStart.set(Calendar.HOUR_OF_DAY, 0);
        todayStart.set(Calendar.MINUTE, 0);
        todayStart.set(Calendar.SECOND, 0);
        todayStart.set(Calendar.MILLISECOND, 0);
        SimpleDateFormat time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.UK);
        return time.format(todayStart.getTime());
    }


    /**
     * 獲取前一天結束時間
     * @return
     */
    public static String getnowEndTime() {
        Calendar todayEnd = Calendar.getInstance();
        todayEnd.add(Calendar.DATE,-1);
        todayEnd.set(Calendar.HOUR_OF_DAY, 23);
        todayEnd.set(Calendar.MINUTE, 59);
        todayEnd.set(Calendar.SECOND, 59);
        todayEnd.set(Calendar.MILLISECOND, 999);
        SimpleDateFormat time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.UK);
        return time.format(todayEnd.getTime());
    }