DateUtil 工具类

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跌底 2017-12-22 11:47:52 博主文章分类：java

文章标签 java 文章分类 Java 后端开发

package org.platform.utils.date;

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 java.util.Locale;

import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory;

/**

作者：L_X / public class DateUtil { private final static Logger log = LoggerFactory.getLogger(DateUtil.class); private static String defaultDatePattern = "yyyy-MM-dd HH:mm:ss"; /**
时间格式：yyyy/MM/dd HH:mm:ss
/ public static final String YYYYMMDDHHMMSS = "yyyy/MM/dd HH:mm:ss"; /*
时间格式：yyyy/MM/dd
/ public static final String YYYYMMDD = "yyyy/MM/dd"; /*
时间格式：yyyy MM dd HH:mm:ss
/ public static final String YYYY_MM_DD_HH_MM_SS = "yyyy MM dd HH:mm:ss"; /*
时间格式：yyyyMMddHHmmss
/ /*
时间格式：yyyyMMddHHmmssSSSS
/ public static final String YYYY_MM_DD_HH_MM_SS_SSSS = "yyyyMMddHHmmssSSSS"; /*
时间格式：yyyyMMdd
**/ public static final String strYyyyMmDd = "yyyyMMdd";

/***

时间格式：yyyy-MM-dd HH:mm:ss
**/ public static final String STR_YYYY_MM_DD_TMP = "yyyy-MM-dd HH:mm:ss";

/***

时间格式：yyyyMM
/ public static final String STR_YYYY_MM = "yyyyMM"; /*
时间格式：yyyy-MM-dd
**/ public static final String STR_YYYY_MM_DD = "yyyy-MM-dd";

/***

时间格式：yyyyMM
**/ public static final String STR_YYYY_MM_DD_STR = "yyyy年MM月dd日";

/***

时间格式：ddMMMyy
**/ public static final String STR_DDMMMYY = "ddMMMyy";

/***

时间格式：HH:mm
**/ public static final String STR_HH_MM = "HH:mm";

/***

时间格式：HHmm
**/ public static final String STR_HHMM = "HHmm";

/***

时间格式：yyyy-MM-dd HH:mm
/ public static final String STR_YYYY_MM_DD_HH_MM = "yyyy-MM-dd HH:mm"; /
时间格式：HH:mm:ss */ public static final String STR_HH_MM_SS = "HH:mm:ss";

public static String getDefaultDatePattern() { return DateUtil.defaultDatePattern; }

/**

当前时间
@return */ public static String getNow() { final Date now = new Date(); return DateUtil.format(now); }

/**

Date转为字符串格式：2011-01-11 17:30:30
@param date
@return */ public static String format(final Date date) { return DateUtil.format(date, DateUtil.getDefaultDatePattern()); }

public static String getYear() { final Date now = new Date(); final String pat = "yyyy"; final SimpleDateFormat sdf = new SimpleDateFormat(pat); return sdf.format(now); }

/**

Date转为字符串
@param date
@param pattern
@return */ public static String format(final Date date, final String pattern) { String returnValue = ""; // System.out.println(pattern); // System.out.println(date); if (null != date) { final SimpleDateFormat df = new SimpleDateFormat(pattern); returnValue = df.format(date); }

return returnValue; }

public static String format(final Date date, final String pattern, Locale local) { String returnValue = ""; // System.out.println(pattern); // System.out.println(date); if (null != date) { final SimpleDateFormat df = new SimpleDateFormat(pattern, local); returnValue = df.format(date); }

return returnValue; }

/**

字符串转为Date 默认的时间格式"yyyy-MM-dd HH:mm:ss"
@param strDate
@return
@throws ParseException */ public static Date parse(final String strDate) { return DateUtil.parse(strDate, DateUtil.getDefaultDatePattern()); }

/**

字符串转为Date 指定时间格式
@param strDate
@param pattern
@return
@throws ParseException */ public static Date parse(final String strDate, final String pattern) { if (strDate == null) { return null; } final SimpleDateFormat df = new SimpleDateFormat(pattern); try { return df.parse(strDate); } catch (final ParseException e) { // log.error("转换失败,时间字符串和时间格式不匹配，strDate=" + strDate + " pattern=" + pattern); return null; } }

public static Date parse4English(final String strDate, final String pattern) { final SimpleDateFormat df = new SimpleDateFormat(pattern, Locale.ENGLISH); try { return df.parse(strDate); } catch (final ParseException e) { // log.error("转换失败,时间字符串和时间格式不匹配，strDate=" + strDate + " pattern=" + pattern); return null; } }

/**

加n年
@param date
@param n
@return */ public static Date addYear(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.YEAR, n); return cal.getTime(); }

/**

加n月
@param date
@param n
@return */ public static Date addMonth(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.MONTH, n); return cal.getTime(); }

/**

加n天
@param date
@param n
@return */ public static Date addDay(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.DAY_OF_YEAR, n); return cal.getTime(); }

/**

加n分
@param date
@param n
@return */ public static Date addMinute(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.MINUTE, n); return cal.getTime(); }

/**

加n时
@param date
@param n
@return */ public static Date addHour(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.HOUR_OF_DAY, n); return cal.getTime(); }

/**

加n秒
@param date
@param n
@return */ public static Date addSecond(final Date date, final int n) { final Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.SECOND, n); return cal.getTime(); }

/**

获取当前时间ms
@return */ public static long getCurrentTimes() { return System.currentTimeMillis(); }

/**

将Date转化为Timestamp
@param date
@return */ public static Timestamp dateToTimestamp(final Date date) { final Timestamp timestamp = new Timestamp(date.getTime()); return timestamp; }

/**

当前时间早于比较时间
@param date
@return */ public static boolean before(Date date) { Calendar future = Calendar.getInstance(); future.setTime(date); return Calendar.getInstance().before(future); }

/**

当前时间晚于比较时间
@param date
@return */ public static boolean after(Date date) { Calendar future = Calendar.getInstance(); future.setTime(date); return Calendar.getInstance().after(future); }

/**

date1时间晚于比较时间date2
@param date
@return */ public static boolean after(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); Calendar future = Calendar.getInstance(); cal.setTime(date1); future.setTime(date2); return cal.after(future); }

/**

date1时间早于比较时间date2
@param date
@return */ public static boolean before(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); Calendar future = Calendar.getInstance(); cal.setTime(date1); future.setTime(date2); return cal.before(future); }

/**

date1时间晚于或扽股比较时间date2
@param date
@return */ public static boolean afterOrEquals(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); Calendar future = Calendar.getInstance(); cal.setTime(date1); future.setTime(date2); return cal.after(future)||cal.equals(future); }

/**

date1时间早于比较时间date2
@param date
@return */ public static boolean beforeOrEquals(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); Calendar future = Calendar.getInstance(); cal.setTime(date1); future.setTime(date2); return cal.before(future)||cal.equals(future); }

/**

date1早于date2,date2时间早于date3
@param date
@return */ public static boolean between(Date date1, Date date2, Date date3) { Calendar cal = Calendar.getInstance(); Calendar mid = Calendar.getInstance(); Calendar future = Calendar.getInstance(); cal.setTime(date1); mid.setTime(date2); future.setTime(date3); int compareToBefore = mid.compareTo(cal); int compareToAfter = mid.compareTo(future); return (compareToBefore >= 0) && (compareToAfter <= 0);//大于等于and小于等于 // return cal.before(mid)&&mid.before(future);//大于and小于 }

public static Long daysBetween(String date1, String date2) { SimpleDateFormat sdfDate = new SimpleDateFormat("yyyy-MM-dd"); Long day = Long.valueOf(0); Calendar cal = Calendar.getInstance(); try { cal.setTime(sdfDate.parse(date1)); long time1 = cal.getTimeInMillis(); cal.setTime(sdfDate.parse(date2)); long time2 = cal.getTimeInMillis(); long between_days = (time2 - time1) / 86400000L; day = Long.valueOf(between_days); } catch (ParseException e) { // TODO Auto-generated catch block log.error("DateUtil操作错误:",e); } return day; }

/**

时间天数差
@param date1
@param date2
@return
@Luoml */ public static Long daysDiffer(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); cal.setTime(date1); long time1 = cal.getTimeInMillis(); cal.setTime(date2); long time2 = cal.getTimeInMillis(); long between_days = (time2 - time1) / 86400000L; Long day = Long.valueOf(between_days); return day; }

/**

时间间隔分钟数
@param date1
@param date2
@return
@Luoml */ public static Long daysDifferMinute(Date date1, Date date2) { Calendar cal = Calendar.getInstance(); cal.setTime(date1); long time1 = cal.getTimeInMillis(); cal.setTime(date2); long time2 = cal.getTimeInMillis(); long betweenDays = (time2 - time1) / (1000 * 60); Long minute = Long.valueOf(betweenDays); return minute; }

public static String dateStringToHost(String str, String format, String hostFormat, Locale locale) { if (StringUtils.isEmpty(str)) { return null; } if (StringUtils.isEmpty(format)) { format = STR_DDMMMYY; } if (locale == null) { locale = Locale.US; } Date date = parse(str, format); String res = format(date, hostFormat, locale); if (StringUtils.isNotEmpty(res)) { res = res.toUpperCase(); }

return res; }

/**

星期
@param date
@return
@Luoml */ public static String getWeek(Date date) { String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; Calendar cal = Calendar.getInstance(); cal.setTime(date); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) w = 0; return weekDays[w]; }

public static int getIntWeek(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(date); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) w = 0; return w; }

/**

@Function: org.platform.utils.date.DateUtil.getBirthDay
@Description: 根据×××号码获得出生日期
@param idCardNo
@return
@version:v1.0
@author:桂银
@date:2016年9月27日上午10:44:06 */ public static Date getBirthDay(String idCardNo) { Date birthDay = null; try{ if (StringUtils.isNotEmpty(idCardNo)) { idCardNo = idCardNo.substring(6, 14); birthDay = DateUtil.parse(idCardNo, DateUtil.strYyyyMmDd); } }catch(Exception e){

}

return birthDay; }

public static String getBirthDayStr(String idCardNo) { String birthDay = null; if (StringUtils.isNotEmpty(idCardNo)) { birthDay = idCardNo.substring(6, 14); } return birthDay; }

public static long minsDiffer(String date1, String date2) { long time2 = DateUtil.parse(date2, STR_YYYY_MM_DD_HH_MM).getTime(); long time1 = DateUtil.parse(date1, STR_YYYY_MM_DD_HH_MM).getTime(); long between_min = (time2 - time1) / (1000 * 60); return between_min; }

public static long hoursDiffer(String date1, String date2) { long time2 = DateUtil.parse(date2, STR_YYYY_MM_DD_HH_MM).getTime(); long time1 = DateUtil.parse(date1, STR_YYYY_MM_DD_HH_MM).getTime(); long between_hour = (time2 - time1) / (1000 * 60 * 60); return between_hour; }

/**

@Function: org.platform.utils.date.DateUtil.formatTrans
@Description: 两个格式转换
@param dateStr
@param format1 原格式
@param format2 目标格式
@return
@version:v1.0
@author:GuiY
@date:2017年7月4日下午12:39:53 / public static String formatTrans(String dateStr, String format1, String format2) { if (StringUtils.isNotEmpty(dateStr)) { Date date = DateUtil.parse(dateStr, format1); return DateUtil.format(date, format2); } return ""; } public static String formatTrans(String dateStr, String format1, String format2,Locale local) { if (StringUtils.isNotEmpty(dateStr)) { Date date = DateUtil.parse(dateStr, format1); return DateUtil.format(date, format2,local); } return ""; } /*
@Title: isValidDate 判断时间格式是否为指定格式
@Author: lizhenglong 2017年7月28日下午5:05:50
@param str
@param formatPattern
@return */ public static boolean isValidDate(String str, String formatPattern) { DateFormat formatter = new SimpleDateFormat(formatPattern); try { Date date = formatter.parse(str); return str.equals(formatter.format(date)); } catch (Exception e) { return false; } }

/**

时区时间转换
@param dateStr
@return */ public static String areaDateFormat(String dateStr){ //此格式只有 jdk 1.7才支持 yyyy-MM-dd'T'HH:mm:ss.SSSXXX
DateFormat df2 = null; Date date1 = null; try { DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX"); //yyyy-MM-dd'T'HH:mm:ss.SSSZ Date date = df.parse(dateStr); SimpleDateFormat df1 = new SimpleDateFormat ("EEE MMM dd HH:mm:ss Z yyyy", Locale.UK); date1 = df1.parse(date.toString()); df2 = new SimpleDateFormat(STR_YYYY_MM_DD); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return df2.format(date1); } }