Date 时间操作工具类

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import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;/** * @author AcmenXD * @version v1.0 * @github https://github.com/AcmenXD * @date 2016/12/15 16:10 * @detail 时间工具类 */public class DateUtils {    /**     * 计算机日期初始时间     */    public static final String INIT_DATE = "1970-1-1 8:00:00";    /**     * formatStr 格式     * 以下属性可以随意组合使用,但转换时需注意,可能出现错误     */    public static final String yyyy = "yyyy"; //年    public static final String MM = "MM"; //月    public static final String dd = "dd"; //日    public static final String HH = "HH"; //时    public static final String mm = "mm"; //分    public static final String ss = "ss"; //秒    public static final String E = "E"; //周几    public static final String EEEE = "EEEE"; //星期几    public static final String a = "a"; //上下午    public static final String yMd = yyyy + "-" + MM + "-" + dd; //yyyy-MM-dd (年-月-日)    public static final String Hms = HH + ":" + mm + ":" + ss; //HH:mm:ss (时:分:秒)    public static final String yMdHms = yMd + " " + Hms; //yyyy-MM-dd HH:mm:ss (年-月-日 时:分:秒)    public static final String yMdHms2 = yyyy + MM + dd + HH + mm + ss; //yyyyMMddHHmmss (年月日时分秒)    public static final String yMdHmsEa = yMdHms + " " + EEEE + " " + a; //yyyy-MM-dd HH:mm:ss E a(年-月-日 时:分:秒 星期几 上下午)    /**     * 获取当前日期 Date类型     */    public static Date nowDate() {        return new Date();    }    /**     * 获取当前日期  : long(毫秒) -> 2016-12-15 16:10:10 (formatStr)     */    public static String nowDate(String formatStr) {        return dateFormat(nowDate().getTime(), formatStr);    }    /**     * 日期格式转换 : long(毫秒) -> 2016-12-15 16:10:10 (formatStr)     */    public static String dateFormat(long date, String formatStr) {        return new SimpleDateFormat(formatStr).format(new Date(date));    }    /**     * 日期格式转换 : 2016-12-15 16:10:10 -> long(毫秒)     */    public static long timeFormat(String timeStr) {        return timeFormat(timeStr, yMdHms);    }    /**     * 日期格式转换 : 2016-12-15 16:10:10(formatStr) -> long(毫秒)     */    public static long timeFormat(String timeStr, String formatStr) {        long time = 0;        try {            SimpleDateFormat sf = new SimpleDateFormat(formatStr);            time = sf.parse(timeStr).getTime();        } catch (ParseException pE) {            pE.printStackTrace();        }        return time;    }    /**     * 日期格式转换 : 2016-12-15 16:10:10 -> int[]{year,month,day,hour,minute,second}     */    public static int[] splitTime(String timeStr) {        return splitTime(timeFormat(timeStr));    }    /**     * 日期格式转换 : long(毫秒) -> int[]{year,month,day,hour,minute,second}     */    public static int[] splitTime(long pTime) {        Calendar calendar = Calendar.getInstance();        calendar.setTime(new Date(pTime));        int second = calendar.get(Calendar.SECOND);        int minute = calendar.get(Calendar.MINUTE);        int hour = calendar.get(Calendar.HOUR_OF_DAY);        int day = calendar.get(Calendar.DAY_OF_MONTH);        int month = calendar.get(Calendar.MONTH) + 1;        int year = calendar.get(Calendar.YEAR);        return new int[]{year, month, day, hour, minute, second};    }    /**     * 两个日期的实际差距 -> 包括相差的年月日时分秒     * 两个参数不分先后,总是时间大的-时间小的     *     * @return int[]{year,month,day,hour,minute,second}     */    public static int[] gapSplitTime(String timeStr1, String timeStr2) {        return gapSplitTime(timeFormat(timeStr1), timeFormat(timeStr2));    }    /**     * 两个日期的实际差距 -> 包括相差的年月日时分秒     * 两个参数不分先后,总是时间大的-时间小的     *     * @return int[]{year,month,day,hour,minute,second}     */    public static int[] gapSplitTime(long pTime1, long pTime2) {        int[] time = splitTime(pTime1);        int[] time2 = splitTime(pTime2);        int year = time[0] - time2[0];        int month = time[1] - time2[1];        int day = time[2] - time2[2];        int hour = time[3] - time2[3];        int minute = time[4] - time2[4];        int second = time[5] - time2[5];        if (second < 0) {            second = 60 - Math.abs(second);            minute -= 1;        }        if (minute < 0) {            minute = 60 - Math.abs(minute);            hour -= 1;        }        if (hour < 0) {            hour = 24 - Math.abs(hour);            day -= 1;        }        if (day < 0) {            Calendar calendar = Calendar.getInstance();            calendar.set(Calendar.YEAR, time2[0]);            calendar.set(Calendar.MONTH, time2[1] - 1);            int monthDay = calendar.getActualMaximum(Calendar.DATE);            day = monthDay - Math.abs(day);            month -= 1;        }        if (month < 0) {            month = 12 - Math.abs(month);            year -= 1;        }        if (year < 0) {            return gapSplitTime(pTime2, pTime1);        }        return new int[]{year, month, day, hour, minute, second};    }    /**     * 两个日期的差距时间     * 两个参数不分先后,总是时间大的-时间小的     * 1年前/2月前/3天前/4小时前/5分钟前/刚刚     */    public static String gapTimeStr(String timeStr1, String timeStr2) {        return gapTimeStr(timeFormat(timeStr1), timeFormat(timeStr2));    }    /**     * 两个日期的差距时间     * 两个参数不分先后,总是时间大的-时间小的     * 1年前/2月前/3天前/4小时前/5分钟前/刚刚     */    public static String gapTimeStr(long pTime1, long pTime2) {        StringBuilder sb = new StringBuilder();        int[] time = gapSplitTime(pTime1, pTime2);        int year = time[0];        int month = time[1];        int day = time[2];        int hour = time[3];        int minute = time[4];        int second = time[5];        if (year > 0) {            sb.append(year + "年前");        } else if (month > 0) {            sb.append(month + "月前");        } else if (day > 0) {            sb.append(day + "天前");        } else if (hour > 0) {            sb.append(hour + "小时前");        } else if (minute > 0) {            sb.append(minute + "分钟前");        } else if (second > 0) {            sb.append("刚刚");        }        return sb.toString();    }    /**     * 判断是否润年     */    public static boolean isLeapYear(Date date) {        return isLeapYear(date.getTime());    }    public static boolean isLeapYear(String timeStr) {        return isLeapYear(timeFormat(timeStr, yMdHms));    }    public static boolean isLeapYear(long date) {        return isLeapYear(Integer.parseInt(dateFormat(date, DateUtils.yyyy)));    }    public static boolean isLeapYear(int year) {        if ((year % 400) == 0) {            return true;        } else if ((year % 100) != 0 && (year % 4) == 0) {            return true;        }        return false;    }}
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