TimeUtil 时间工具类——随时更新

    public class TimeUtil {
    /**
     * 根据年月日计算年龄，birthTimeString "1994-11-14"
     * @param birthTimeString
     * @return
     */
    public static int getAgeByBirthTime(String birthTimeString) {
        String strs[] = birthTimeString.trim().split("-");
        int selectYear = Integer.parseInt(strs[0]);
        int selectMonth = Integer.parseInt(strs[1]);
        int selectDay = Integer.parseInt(strs[2]);

        Calendar cal = Calendar.getInstance();
        int yearNow = cal.get(Calendar.YEAR);
        int monthNow = cal.get(Calendar.MONTH) + 1;
        int dayNow = cal.get(Calendar.DATE);

        int yearMinus = yearNow - selectYear;
        int monthMinus = monthNow - selectMonth;
        int dayMinus = dayNow - selectDay;

        int age = yearMinus;
        if (yearMinus < 0) {
            age = 0;
        } else if (yearMinus == 0) {
            if (monthMinus < 0) {
                age = 0;
            } else if (monthMinus == 0) {
                if (dayMinus < 0) {
                    age = 0;
                } else if (dayMinus >= 0) {
                    age = 1;
                }
            } else if (monthMinus > 0) {
                age = 1;
            }
        } else if (yearMinus > 0) {
            if (monthMinus < 0) {

            } else if (monthMinus == 0) {
                if (dayMinus < 0) {

                } else if (dayMinus >= 0) {
                    age = age + 1;
                }
            } else if (monthMinus > 0) {
                age = age + 1;
            }
        }
        return age;
    }

    /**
     * 根据时间戳计算年龄
     * @param birthTime
     * @return
     */
    public static int getAgeByBirthTime(long birthTime) {
        Date date = new Date(birthTime * 1000l);
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        String birthTimeString = format.format(date);
        return getAgeByBirthTime(birthTimeString);
    }

    /**
     * 字符串转 Date类型
     * @param stringTime 2000-01-01 06:00:00
     * @return
     */
    public static Date stringToDate(String stringTime) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            return simpleDateFormat.parse(stringTime);
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 获取当前时间一周后时间
     * @return
     */
    public static Date getDateOfAWeekLate() {
        Calendar curr = Calendar.getInstance();
        curr.set(Calendar.DAY_OF_MONTH, curr.get(Calendar.DAY_OF_MONTH) + 7);
        Date date = curr.getTime();
        return date;
    }

    /**
     * 获取当前时间一月后时间
     * @return
     */
    public static Date getDateOfAMonthLate() {
        Calendar curr = Calendar.getInstance();
        curr.set(Calendar.MONTH, curr.get(Calendar.MONTH) + 1);
        Date date = curr.getTime();
        return date;
    }

    /**
     * 获取当前时间一年后时间
     * @return
     */
    public static Date getDateOfAyearLate() {
        Calendar curr = Calendar.getInstance()
        curr.set(Calendar.YEAR, curr.get(Calendar.YEAR) + 1);
        Date date = curr.getTime();
        return date;
    }

	/**
     * 获取当天开始时间
     * @return
     */
    public static Date todayZero() {
        long current = System.currentTimeMillis();    //当前时间毫秒数
        long zero = current/(1000*3600*24)*(1000*3600*24) - TimeZone.getDefault().getRawOffset();  //今天零点零分零秒的毫秒数
        Date date = new Date(zero);
        return date;
    }

    /**
     * 获取当天结束时间
     * @return
     */
    public static Date todayEnd() {
        long current = System.currentTimeMillis();    //当前时间毫秒数
        long zero = current/(1000*3600*24)*(1000*3600*24) - TimeZone.getDefault().getRawOffset();  //今天零点零分零秒的毫秒数
        long end = zero + 24*60*60*1000-1;  //今天23点59分59秒的毫秒数
        Date date = new Date(end);
        return date;
    }