package com.saye.hgddmz.commons.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class DateDUtil { public static String yyyy_MM_dd = "yyyy-MM-dd"; public static String yyyyMMdd = "yyyyMMdd"; public static String yyyyMM = "yyyyMM"; public static String yyyy_MM = "yyyy-MM"; public static String yyyy_MM_dd_HH_00 = "yyyy-MM-dd HH:00"; public static String yyyy_MM_dd_HH_mm = "yyyy-MM-dd HH:mm"; public static String yyyy_MM_dd_HH_mm_ss = "yyyy-MM-dd HH:mm:ss"; public static String yyyy_MM_dd_HH_mm_ss_SS = "yyyy-MM-dd HH:mm:ss.SS"; public static String yyyyMMddHHmm = "yyyyMMddHHmm"; public static String yyyyMMddHHmmss = "yyyyMMddHHmmss"; public static String yyyyMMddHHmmssSS = "yyyyMMddHHmmssSS"; public static String yyMMdd = "yyMMdd"; public static String yyyy_MM_dd_00_00 = "yyyy-MM-dd 00:00"; /** * 将字符串时间改成Date类型 * @param format * @param dateStr * @return */ public static Date strToDate(String format,String dateStr) { Date date = null; try { SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); date = simpleDateFormat.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } return date; } /** * 将Date时间转成字符串 * @param format * @param date * @return */ public static String DateToStr(String format,Date date){ SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); return simpleDateFormat.format(date); } /** * 获取2个字符日期的天数差 * @param p_startDate * @param p_endDate * @return 天数差 */ public static long getDaysOfTowDiffDate( String p_startDate, String p_endDate ){ Date l_startDate = DateDUtil.strToDate(DateDUtil.yyyy_MM_dd, p_startDate); Date l_endDate = DateDUtil.strToDate(DateDUtil.yyyy_MM_dd, p_endDate); long l_startTime = l_startDate.getTime(); long l_endTime = l_endDate.getTime(); long betweenDays = (long) ( ( l_endTime - l_startTime ) / ( 1000 * 60 * 60 * 24 ) ); return betweenDays; } /** * 获取2个字符日期的天数差 * @param l_startDate * @param l_endDate * @return 天数差 */ public static long getDaysOfTowDiffDate( Date l_startDate, Date l_endDate ){ long l_startTime = l_startDate.getTime(); long l_endTime = l_endDate.getTime(); long betweenDays = (long) ( ( l_endTime - l_startTime ) / ( 1000 * 60 * 60 * 24 ) ); return betweenDays; } /** * 给出日期添加一段时间后的日期 * @param dateStr * @param plus * @return */ public static String getPlusDays(String format,String dateStr,long plus){ Date date = DateDUtil.strToDate(format, dateStr); long time = date.getTime()+ plus*24*60*60*1000; return DateDUtil.DateToStr(format,new Date(time)); } /** * 给出日期添加一段时间后的日期 * @param format * @param date * @param plus * @return */ public static String getPlusDays(String format,Date date,long plus){ long time = date.getTime()+ plus*24*60*60*1000; return DateDUtil.DateToStr(format,new Date(time)); } /** * 给出日期添加一段时间前的日期 * @param format * @param date * @param forth * @return */ public static String getForthDays(String format,Date date,long forth){ long time = date.getTime()- forth*24*60*60*1000; return DateDUtil.DateToStr(format,new Date(time)); } /** * 给出时间添加几个小时后的时间 * @param format * @param dateStr * @param plus * @return */ public static String getPlusHours(String format,String dateStr,long plus){ Date date = DateDUtil.strToDate(format, dateStr); long time = date.getTime()+ plus*60*60*1000; return DateDUtil.DateToStr(format,new Date(time)); } /** * 给出时间添加几个分钟后的时间 * @param format * @param dateStr * @param plus * @return */ public static String getPlusMinutes(String format,String dateStr,long plus){ Date date = DateDUtil.strToDate(format, dateStr); long time = date.getTime()+ plus*60*1000; return DateDUtil.DateToStr(format,new Date(time)); } /** * 得到当前时间，格式如：yyyy-MM-dd HH:mm:ss:SS * @return */ public static String getCurrentTime(){ String nowTime = DateDUtil.DateToStr(DateDUtil.yyyy_MM_dd_HH_mm_ss_SS, new Date()); return nowTime; } /** * 得到当前时间，格式如：yyyy-MM-dd HH:mm:ss * @return */ public static String getTheCurrentTime(){ String nowTime = DateDUtil.DateToStr(DateDUtil.yyyy_MM_dd_HH_mm_ss, new Date()); return nowTime; } /** * 得到当前日期，格式如：yyyyMMdd * @return */ public static String getCurrentDate(){ String nowDate = DateDUtil.DateToStr(DateDUtil.yyyyMMdd, new Date()); return nowDate; } /** * 得到当前日期，格式如：yyyyMMdd * @return */ public static String getCurrentDate(String format){ String nowDate = DateDUtil.DateToStr(format, new Date()); return nowDate; } /** * 获取2个字符日期的分钟数差 * @param p_startDate * @param p_endDate * @return 相差的分钟 */ public static long getMinutesOfTowDiffDate(String p_startDate, String p_endDate ){ Date l_startDate = DateDUtil.strToDate(DateDUtil.yyyy_MM_dd_HH_mm_ss_SS, p_startDate); Date l_endDate = DateDUtil.strToDate(DateDUtil.yyyy_MM_dd_HH_mm_ss_SS, p_endDate); long l_startTime = l_startDate.getTime(); long l_endTime = l_endDate.getTime(); long betweenMinutes = (long) ( ( l_endTime - l_startTime ) / ( 1000 * 60) ); return betweenMinutes; } /** * 获取2个字符日期的分钟数差 * @param p_startDate * @param p_endDate * @return 相差的分钟 */ public static long getMinutesOfTowDiffDateMin(String format,String p_startDate, String p_endDate ){ Date l_startDate = DateDUtil.strToDate(format, p_startDate); Date l_endDate = DateDUtil.strToDate(format, p_endDate); long l_startTime = l_startDate.getTime(); long l_endTime = l_endDate.getTime(); long betweenMinutes = (long) ( ( l_endTime - l_startTime ) / ( 1000 * 60) ); return betweenMinutes; } public static long getMonthIntervalOfTowDiffDate(String p_startMonth, String p_endMonth){ Date l_startDate = DateDUtil.strToDate(DateDUtil.yyyy_MM, p_startMonth); Date l_endDate = DateDUtil.strToDate(DateDUtil.yyyy_MM, p_endMonth); Calendar calender = Calendar.getInstance(); calender.setTime(l_startDate); long l_startMonth = calender.get(Calendar.MONTH)+1; long l_startYear = calender.get(Calendar.YEAR); calender.setTime(l_endDate); long l_endMonth =calender.get(Calendar.MONTH)+1; long l_endYear = calender.get(Calendar.YEAR); long betweenYear = l_endYear - l_startYear; long betweenMonth = (long) ( l_endMonth - l_startMonth ) ; return betweenYear * 12 + betweenMonth; } /** * 将字符串日期转为cron表达式 */ public static String getCron(String execute_time) throws Exception{ SimpleDateFormat simpleDateFormat = new SimpleDateFormat(yyyy_MM_dd_HH_mm_ss); Date date = simpleDateFormat.parse(execute_time); SimpleDateFormat dateFormat = new SimpleDateFormat("ss mm HH dd MM ? yyyy"); return dateFormat.format(date); } /** * 获取当前年月日日期 */ public static String getCDate(){ Calendar now = Calendar.getInstance(); String year=now.get(Calendar.YEAR)+""; String month=(now.get(Calendar.MONTH) + 1) + ""; String day=now.get(Calendar.DAY_OF_MONTH)+""; if ((now.get(Calendar.MONTH) + 1) < 10) month = "0" + month; if (now.get(Calendar.DAY_OF_MONTH) < 10) day= "0" + day; String nowDate = year+"年"+month+"月"+day+"日"; return nowDate; } }