超级详细且实用的日期处理工具类（包含常用的24个方法）

Love The Way You Lie 2023-01-08 02:20 135阅读 0赞

**超级详细的日期处理工具类（包含常用的24个方法）：**

package com.hdyanfa.interact.util;
    
    import java.sql.Timestamp;
    import java.text.DateFormat;
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.Calendar;
    import java.util.Date;
    import org.apache.commons.lang3.StringUtils;
    
    /** * 日期处理工具类 */
    public class DateTimeUtil{ 
    
        public static final String FULL_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
        public static final String FULL_DATE_FORMAT_CN = "yyyy年MM月dd日 HH时mm分ss秒";
        public static final String PART_DATE_FORMAT = "yyyy-MM-dd";
        public static final String PART_DATE_FORMAT_CN = "yyyy年MM月dd日";
        public static final String YEAR_DATE_FORMAT = "yyyy";
        public static final String MONTH_DATE_FORMAT = "MM";
        public static final String DAY_DATE_FORMAT = "dd";
        public static final String WEEK_DATE_FORMAT = "week";
        public static final String YEAR_MONTH_DATE_FORMAT= "yyyyMMdd";
    
    
        /** * 将日期类型转换为字符串 * @param date 日期 * @param xFormat 格式 * @return */
        public static String getFormatDate(Date date,String xFormat){ 
            date = date == null ? new Date() : date;
            xFormat = StringUtils.isNotEmpty(xFormat) == true ? xFormat : FULL_DATE_FORMAT;
            SimpleDateFormat sdf  = new SimpleDateFormat(xFormat);
            return sdf.format(date);
        }
    
    
        /** * 比较日期大小 * @param dateX * @param dateY * @return x < y return [-1]; * x = y return [0] ; * x > y return [1] ; */
        public static int compareDate(Date dateX,Date dateY){ 
            return dateX.compareTo(dateY);
        }
    
    
        /** * 将日期字符串转换为日期格式类型 * @param xDate * @param xFormat 为NULL则转换如：2012-06-25 * @return */
        public static Date parseString2Date(String xDate, String xFormat) { 
            while(!isNotDate(xDate)){ 
                xFormat = StringUtils.isNotEmpty(xFormat) == true ? xFormat : PART_DATE_FORMAT;
                SimpleDateFormat sdf  = new SimpleDateFormat(xFormat);
                Date date = null ;
                try { 
                    date = sdf.parse(xDate);
                } catch (ParseException e) { 
                    e.printStackTrace();
                    return null;
                }
                return date;
            }
            return null;
        }
    
    
        /** * 判断需要转换类型的日期字符串是否符合格式要求 * @param xDate * @return */
        public static boolean isNotDate(String xDate){ 
            SimpleDateFormat sdf  = new SimpleDateFormat(PART_DATE_FORMAT);
            try { 
                if(StringUtils.isEmpty(xDate)){ 
                    return true;
                }
                sdf.parse(xDate);
                return false;
            } catch (ParseException e) { 
                e.printStackTrace();
                return true;
            }
        }
    
        public static boolean isDate(String xDate){ 
            return !isDate(xDate);
        }
    
    
        /** * 获取俩个日期之间相差天数 * @param dateX * @param dateY * @return */
        public static int getDiffDays(Date dateX,Date dateY){ 
            if ((dateX == null) || (dateY == null)){ 
                return 0;
            }
    
            int dayX = (int)(dateX.getTime() / (60 * 60 * 1000 * 24));
            int dayY = (int)(dateY.getTime() / (60 * 60 * 1000 * 24));
    
            return dayX > dayY ? dayX - dayY : dayY - dayX;
        }
    
    
        /** * 获取俩个日期之间相差天数(日期) * @param dateX * @param dateY * @return */
        public static int getDiffDaysNoABS(Date dateX,Date dateY){ 
            if ((dateX == null) || (dateY == null)){ 
                return 0;
            }
    
            int dayX = (int)(dateX.getTime() / (60 * 60 * 1000 * 24));
            int dayY = (int)(dateY.getTime() / (60 * 60 * 1000 * 24));
    
            return dayX - dayY;
        }
    
    
        /** * 获取传值日期之后几天的日期并转换为字符串类型 * @param date 需要转换的日期 date 可以为NULL 此条件下则获取当前日期 * @param after 天数 * @param xFormat 转换字符串类型 (可以为NULL) * @return */
        public static String getAfterCountDate(Date date, int after, String xFormat) { 
            date = date == null ? new Date() : date;
            xFormat = StringUtils.isNotEmpty(xFormat) == true ? xFormat : PART_DATE_FORMAT;
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.add(Calendar.DAY_OF_MONTH, after);
            return getFormatDate(calendar.getTime(), xFormat);
        }
    
        /** * 获取传值日期之前几天的日期并转换为字符串类型 * @param date 需要转换的日期 date 可以为NULL 此条件下则获取当前日期 * @param before 天数 * @param xFormat 转换字符串类型 (可以为NULL) * @return */
        public static String getBeforeCountDate(Date date, int before, String xFormat) { 
            date = date == null ? new Date() : date;
            xFormat = StringUtils.isNotEmpty(xFormat) == true ? xFormat : PART_DATE_FORMAT;
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.add(Calendar.DAY_OF_MONTH, -before);
            return getFormatDate(calendar.getTime(), xFormat);
        }
    
    
        /** * 获取日期的参数 如：年 , 月 , 日 , 星期几 * * @param xDate 日期 可以为日期格式,可以是字符串格式; 为NULL或者其他格式时都判定为当前日期 * @param xFormat 年 yyyy 月 MM 日 dd 星期 week ;其他条件下都返回0 */
        public static int getDateTimeParam(Object xDate,String xFormat) { 
            xDate = xDate == null ? new Date() : xDate;
            Date date = null;
            if(xDate instanceof String){ 
                date = parseString2Date(xDate.toString(), null);
            } else if(xDate instanceof Date){ 
                date = (Date) xDate;
            } else { 
                date = new Date();
            }
            date = date == null ? new Date() : date;
            if (StringUtils.isNotEmpty(xFormat)
                    && (xFormat.equals(YEAR_DATE_FORMAT)
                    || xFormat.equals(MONTH_DATE_FORMAT)
                    || xFormat.equals(DAY_DATE_FORMAT)) ){ 
                return Integer.parseInt(getFormatDate(date, xFormat));
            } else if(StringUtils.isNotEmpty(xFormat)
                    && (WEEK_DATE_FORMAT.equals(xFormat))) { 
                Calendar cal = Calendar.getInstance(); cal.setTime(date);
                int week = cal.get(java.util.Calendar.DAY_OF_WEEK) - 1 == 0 ?
                        7 : cal.get(java.util.Calendar.DAY_OF_WEEK) - 1;
                return week;
            } else { 
                return 0;
            }
        }
    
    
        /** * 日期格式转换为时间戳 * @param time * @param format * @return */
        public static Long getLongTime(String time,String format){ 
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            Date date = null;
            try { 
                date = sdf.parse(time);
                return (date.getTime()/1000);
            } catch (ParseException e) { 
                e.printStackTrace();
            }
            return null;
        }
    
    
        /** * 获取星期字符串 * @param xDate * @return */
        public static String getWeekString(Object xDate){ 
            int week = getDateTimeParam(xDate,WEEK_DATE_FORMAT);
            switch (week) { 
                case 1:
                    return "星期一";
                case 2:
                    return "星期二";
                case 3:
                    return "星期三";
                case 4:
                    return "星期四";
                case 5:
                    return "星期五";
                case 6:
                    return "星期六";
                case 7:
                    return "星期日";
                default :
                    return "";
            }
        }
    
    
        /** * 获得十位时间 */
        public static Long getTenBitTimestamp(){ 
            return System.currentTimeMillis()/1000;
        }
    
    
        /** * 获得某天的结束时间 */
        public static Date getDateEnd(Date date){ 
            return new Date(date.getTime()+(86400-1)*1000);
        }
    
    
        /** * 日期格式转换为毫秒 * * @param time * @param format * @return */
        public static Long getLongDateTime(String time,String format){ 
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            Date date = null;
            try { 
                date = sdf.parse(time);
                return date.getTime();
            } catch (ParseException e) { 
                e.printStackTrace();
            }
            return null;
        }
    
    
        /** * 获取某天开始时间戳_10位 */
        public static Long getStartTimestamp(Date date){ 
    
            Calendar calendar = Calendar.getInstance();
            date=date==null ? new Date() : date;
            calendar.setTime(date);
    
            calendar.set(Calendar.HOUR_OF_DAY, 0);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);
    
            return calendar.getTime().getTime()/1000;
        }
    
    
        /** * 获取某天结束时间戳_10位 */
        public static Long getEndTimestamp(Date date){ 
    
            Calendar calendar = Calendar.getInstance();
            date=date==null ? new Date() : date;
            calendar.setTime(date);
    
            calendar.set(Calendar.HOUR_OF_DAY, 23);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);
    
            return calendar.getTime().getTime()/1000;
        }
    
    
        /** * 获取昨天日期 * * @param date * @return */
        public static Date getYesterday(Date date) { 
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.add(Calendar.DAY_OF_MONTH, -1);
    
            calendar.set(Calendar.HOUR_OF_DAY, 9);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);
            date = calendar.getTime();
            return date;
        }
    
    
        /** * 获取明天时间（参数时间+1天） * @param date * @return */
        public static Date getTomorrowday(Date date){ 
            Calendar c = Calendar.getInstance();
            c.setTime(date);
            c.add(Calendar.DAY_OF_YEAR, +1);
            return c.getTime();
        }
    
    
        /** * 10位int型的时间戳转换为String(yyyy-MM-dd HH:mm:ss) * * @param time * @return */
        public static String timestampToString(Integer time,String format) { 
            // int转long时，先进行转型再进行计算，否则会是计算结束后在转型
            long temp = (long) time * 1000;
            Timestamp ts = new Timestamp(temp);
            String tsStr = "";
            DateFormat dateFormat = new SimpleDateFormat(format);
            try { 
                // 方法一
                tsStr = dateFormat.format(ts);
            } catch (Exception e) { 
                e.printStackTrace();
            }
            return tsStr;
        }
    
    
        /** * 获取某天开始时间 */
        public static Date getStartTime(Date date){ 
    
            Calendar calendar = Calendar.getInstance();
            date=date==null ? new Date() : date;
            calendar.setTime(date);
    
            calendar.set(Calendar.HOUR_OF_DAY, 0);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);
    
            return calendar.getTime();
        }
    
    
        /** * 获取某天结束时间 */
        public static Date getEndTime(Date date){ 
    
            Calendar calendar = Calendar.getInstance();
            date=date==null ? new Date() : date;
            calendar.setTime(date);
    
            calendar.set(Calendar.HOUR_OF_DAY, 23);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);
    
            return calendar.getTime();
        }
    
    
        /** * Date类型转换为10位时间戳 * * @param time * @return */
        public static Integer DateToTimestamp(Date time) { 
            Timestamp ts = new Timestamp(time.getTime());
    
            return (int) ((ts.getTime()) / 1000);
        }
    
    
        /** * 获取当前时间之前或之后几分钟 * @param minute * @return */
        public static String getTimeByMinute(int minute,Date time) { 
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(time);
            calendar.add(Calendar.MINUTE, minute);
            return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
    
        }
    }