package com.neuxa.is.workflow.utils;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.*;
import org.apache.commons.lang3.StringUtils;
/**
* 日期工具类
* Author:syp836
*/
public class DateUtil {
/**
* 使用递归方法建树
* @param maxpid
* @return
*/
public static List<BaseRecursive> buildByRecursive(List<BaseRecursive> recursiveList,Integer maxpid) {
List<BaseRecursive> trees = new ArrayList<BaseRecursive>();
for (BaseRecursive bean : recursiveList) {
if (bean.getId().equals(maxpid)) {
trees.add(findChildren(bean, recursiveList));
}
}
return trees;
}
/**
* 递归查找子节点
*
* @param baseRecursive
* @param quyuses
* @return
*/
public static BaseRecursive findChildren(BaseRecursive baseRecursive, List<BaseRecursive> quyuses) {
for (BaseRecursive it : quyuses) {
if (baseRecursive.getId().equals(it.getPid())) {
if (baseRecursive.getNodes() == null) {
baseRecursive.setNodes(new ArrayList<BaseRecursive>());
}
baseRecursive.getNodes().add(findChildren(it, quyuses));
}
}
return baseRecursive;
}
// public static void main(String[] args) {
// System.out.println(getStartTime(new Date()));
// System.out.println(getEndTime(new Date()));
//
//
// System.out.println("获取本月第一天日期:" + getFirstDayTimeOfMonth());
// System.out.println("获取本月最后一天日期:" + getLastDayTimeOfMonth());
// System.out.println("一周前日期：" + date2String(addDays(-7)));
// System.out.println("两天前日期：" + date2String(addDays(-2)));
// System.out.println("昨天日期：" + date2String(addDays(-1)));
// System.out.println("今天日期：" + date2String(addDays(0)));
// System.out.println("明天日期：" + date2String(addDays(1)));
// System.out.println("两天后日期：" + date2String(addDays(2)));
// System.out.println("一周后日期：" + date2String(addDays(7)));
//
// System.out.println("获取当天日期:" + getNowTime("yyyy-MM-dd"));
// System.out.println("获取本周一日期:" + getMondayOFWeek());
// System.out.println("获取本周日的日期~:" + getCurrentWeekday());
// System.out.println("获取上周一日期:" + getPreviousWeekday());
// System.out.println("获取上周日日期:" + getPreviousWeekSunday());
// System.out.println("获取下周一日期:" + getNextMonday());
// System.out.println("获取下周日日期:" + getNextSunday());
// System.out.println("获取本月第一天日期:" + getFirstDayOfMonth());
// System.out.println("获取本月最后一天日期:" + getDefaultDay());
// System.out.println("获取上月第一天日期:" + getPreviousMonthFirst());
// System.out.println("获取上月最后一天的日期:" + getPreviousMonthEnd());
// System.out.println("获取下月第一天日期:" + getNextMonthFirst());
// System.out.println("获取下月最后一天日期:" + getNextMonthEnd());
// System.out.println("获取本年的第一天日期:" + getCurrentYearFirst());
// System.out.println("获取本年最后一天日期:" + getCurrentYearEnd());
// System.out.println("获取去年的第一天日期:" + getPreviousYearFirst());
// System.out.println("获取去年的最后一天日期:" + getPreviousYearEnd());
// System.out.println("获取明年第一天日期:" + getNextYearFirst());
// System.out.println("获取明年最后一天日期:" + getNextYearEnd());
// System.out.println("获取本季度第一天到最后一天:" + getThisSeasonTime(11));
// System.out.println("获取两个日期之间间隔天数2008-12-1~2008-9.29:" +
// getTwoDay("2008-12-1", "2008-9-29"));
// System.out.println(getNowTimeStampTime().getTime());
// System.out.println(getLongAgoYear());
//
// }
// 用来全局控制 上一周，本周，下一周的周数变化
private static int weeks = 0;
private static int MaxDate;// 一月最大天数
private static int MaxYear;// 一年最大天数
private static String defaultDatePattern = null;
private static String timePattern = "HH:mm";
public static final String TS_FORMAT = DateUtil.getDatePattern() + " HH:mm:ss.S";
/** 日期格式yyyy-MM字符串常量 */
public static final String MONTH_FORMAT = "yyyy-MM";
/** 日期格式yyyyMM字符串常量 */
public static final String MONTH_FORMAT_SHORT = "yyyyMM";
/** 日期格式yyyy-MM-dd字符串常量 */
public static final String DATE_FORMAT = "yyyy-MM-dd";
public static final String DATE_FORMAT_DIT = "yyyy.MM.dd";
/** 日期格式yyyyMMdd字符串常量 */
public static final String DATE_FORMAT_SHORT = "yyyyMMdd";
/** 日期格式yyyyMMddHHmm字符串常量 */
public static final String DATE_FORMAT_LONG = "yyyyMMddHHmm";
public static final String DATE_FORMAT_MD = "MMdd";
public static final String DATE_FORMAT_CHN_MD = "M月dd日";
/** 日期格式yyyy MM dd字符串常量 */
public static final String DATE_FORMAT_BANK = "yyyy MM dd";
/** 日期格式HH:mm:ss字符串常量 */
public static final String HOUR_FORMAT = "HH:mm:ss";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String DATETIME_FORMAT1 = "yyyy-MM-dd 00:00:00";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String DATETIME_FORMAT0 = "yyyy-MM-dd 01:00:00";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String DATETIME_FORMAT2 = "yyyy-MM-dd 23:59:59";
/** 格式化到小时 */
public static final String HOUR_DATETIME_FORMAT = "yyyy-MM-dd HH";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String MILLISECOND_DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss.S";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String MILLI3SECOND_DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss.SSS";
/** 日期格式yyyy-MM-dd HH:mm:ss字符串常量 */
public static final String yyyyMMddHHmmss_FORMAT = "yyyyMMddHHmmss";
public static final String yyyyMMddHHmmssSSS_FORMAT = "yyyyMMddHHmmssSSS";
/** 某天开始时分秒字符串常量 00:00:00 */
public static final String DAY_BEGIN_STRING_HHMMSS = " 00:00:00";
/** 某天结束时分秒字符串常量 23:59:59 */
public static final String DAY_END_STRING_HHMMSS = " 23:59:59";
private static SimpleDateFormat sdf_date_format = new SimpleDateFormat(DATE_FORMAT);
private static SimpleDateFormat sdf_date_format_bank = new SimpleDateFormat(DATE_FORMAT_BANK);
private static SimpleDateFormat sdf_hour_format = new SimpleDateFormat(HOUR_FORMAT);
private static SimpleDateFormat sdf_datetime_format = new SimpleDateFormat(DATETIME_FORMAT);
private static SimpleDateFormat sdf_datetime_format2 = new SimpleDateFormat(yyyyMMddHHmmss_FORMAT);
/**
* 对比paramDate与系统时间，>1 系统时间大于paramDate，<1 系统时间小于paramDate
* @param paramDate
* @return
*/
public static int compareToSysDate(Date paramDate){
Date sysdate=new Date();
return sysdate.compareTo(paramDate);
}
public static long calTowDateOfDay(Date endDate,Date nowDate){
long nd = 1000 * 24 * 60 * 60;
long diff = endDate.getTime() - nowDate.getTime();
// 计算差多少天
long day = diff / nd;
return day;
}
public static long calTowDateOfHour(Date endDate,Date nowDate){
long nd = 1000 * 24 * 60 * 60;
long nh = 1000 * 60 * 60;
long diff = endDate.getTime() - nowDate.getTime();
// 计算差多少小时
long hour = diff % nd / nh;
return hour;
}
public static long calTowDateOfMin(Date endDate,Date nowDate){
long nd = 1000 * 24 * 60 * 60;
long nh = 1000 * 60 * 60;
long nm = 1000 * 60;
long diff = endDate.getTime() - nowDate.getTime();
// 计算差多少分钟
long min = diff % nd % nh / nm;
return min;
}
public static long calTowDateOfSecond(Date endDate,Date nowDate){
long nd = 1000 * 24 * 60 * 60;
long nh = 1000 * 60 * 60;
long nm = 1000 * 60;
long ns = 1000;
long diff = endDate.getTime() - nowDate.getTime();
// 计算差多少分钟
long second = diff % nd % nh % nm / ns;
return second;
}
public static String calTime(Date nowDate,Date create_time){
String subTime="";
long min = 0;
long day;
long hour = 0;
long second = DateUtil.calTowDateOfSecond(nowDate, create_time);
min = DateUtil.calTowDateOfMin(nowDate, create_time);
hour = DateUtil.calTowDateOfHour(nowDate, create_time);
day = DateUtil.calTowDateOfDay(nowDate, create_time);
if (day > 0) {
subTime = day + "天前";
} else if (hour > 0) {
subTime = hour + "小时前";
} else if (min > 0) {
subTime = min + "分钟前";
}else if(second > 0) {
subTime = second + "秒前";
}
return subTime;
}
public DateUtil() {
}
/**
* 自定义格式化日期,
* @param format
* @param date
* @return
*/
public static String formatDateTime(String format,Date date) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
try {
return simpleDateFormat.format(date.getTime());
} catch (Exception e) {
// logger.debug("DateUtil.getDateTime():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前日期及时间，以格式为：yyyy-MM-dd HH:mm:ss的日期字符串形式返回
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getDateTime() {
try {
return sdf_datetime_format.format(Calendar.getInstance().getTime());
} catch (Exception e) {
// logger.debug("DateUtil.getDateTime():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前日期，以格式为：yyyy-MM-dd的日期字符串形式返回
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getDate() {
try {
return sdf_date_format.format(Calendar.getInstance().getTime());
} catch (Exception e) {
// logger.debug("DateUtil.getDate():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前日期，以格式为：yyyy MM dd的日期字符串形式返回
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getDateWithBank() {
try {
return sdf_date_format_bank.format(Calendar.getInstance().getTime());
} catch (Exception e) {
// logger.debug("DateUtil.getDateWithBank():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前时间，以格式为：HH:mm:ss的日期字符串形式返回
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getTime() {
String temp = " ";
try {
temp += sdf_hour_format.format(Calendar.getInstance().getTime());
return temp;
} catch (Exception e) {
// logger.debug("DateUtil.getTime():" + e.getMessage());
return "";
}
}
/**
* 统计时开始日期的默认值
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getStartDate() {
try {
return getYear() + "-01-01";
} catch (Exception e) {
// logger.debug("DateUtil.getStartDate():" + e.getMessage());
return "";
}
}
/**
* 统计时结束日期的默认值
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getEndDate() {
try {
return getDate();
} catch (Exception e) {
// logger.debug("DateUtil.getEndDate():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前日期的年份
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getYear() {
try {
return String.valueOf(Calendar.getInstance().get(Calendar.YEAR));
} catch (Exception e) {
// logger.debug("DateUtil.getYear():" + e.getMessage());
return "";
}
}
/**
* 获得服务器当前日期的年份
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static Date getLongAgoYear() {
Date date = null;
try {
Calendar calendar = Calendar.getInstance();
calendar.set(1900, 0, 0, 00, 00, 00);
date = calendar.getTime();
return date;
} catch (Exception e) {
// logger.debug("DateUtil.getYear():" + e.getMessage());
return null;
}
}
/**
* 获得服务器当前日期的月份
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getMonth() {
try {
java.text.DecimalFormat df = new java.text.DecimalFormat();
df.applyPattern("00;00");
return df.format((Calendar.getInstance().get(Calendar.MONTH) + 1));
} catch (Exception e) {
// logger.debug("DateUtil.getMonth():" + e.getMessage());
return "";
}
}
/**
* 获得服务器在当前月中天数
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getDay() {
try {
return String.valueOf(Calendar.getInstance().get(Calendar.DAY_OF_MONTH));
} catch (Exception e) {
// logger.debug("DateUtil.getDay():" + e.getMessage());
return "";
}
}
/**
* 比较两个日期相差的天数
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date1
* @param date2
* @return
*/
public static int getMargin(String date1, String date2) {
int margin;
try {
ParsePosition pos = new ParsePosition(0);
ParsePosition pos1 = new ParsePosition(0);
Date dt1 = sdf_date_format.parse(date1, pos);
Date dt2 = sdf_date_format.parse(date2, pos1);
long l = dt1.getTime() - dt2.getTime();
margin = (int) (l / (24 * 60 * 60 * 1000));
return margin;
} catch (Exception e) {
// logger.debug("DateUtil.getMargin():" + e.toString());
return 0;
}
}
/**
* 比较两个日期相差的天数
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date1
* @param date2
* @return
*/
public static double getDoubleMargin(String date1, String date2) {
double margin;
try {
ParsePosition pos = new ParsePosition(0);
ParsePosition pos1 = new ParsePosition(0);
Date dt1 = sdf_datetime_format.parse(date1, pos);
Date dt2 = sdf_datetime_format.parse(date2, pos1);
long l = dt1.getTime() - dt2.getTime();
margin = (l / (24 * 60 * 60 * 1000.00));
return margin;
} catch (Exception e) {
// logger.debug("DateUtil.getMargin():" + e.toString());
return 0;
}
}
/**
* 比较两个日期相差的月数
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date1
* @param date2
* @return
*/
public static int getMonthMargin(String date1, String date2) {
int margin;
try {
margin = (Integer.parseInt(date2.substring(0, 4)) - Integer.parseInt(date1.substring(0, 4))) * 12;
margin += (Integer.parseInt(date2.substring(4, 7).replaceAll("-0", "-")) - Integer.parseInt(date1
.substring(4, 7).replaceAll("-0", "-")));
return margin;
} catch (Exception e) {
// logger.debug("DateUtil.getMargin():" + e.toString());
return 0;
}
}
/**
* 返回日期加X天后的日期
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date
* @param i
* @return
*/
public static String addDay(String date, int i) {
try {
GregorianCalendar gCal = new GregorianCalendar(Integer.parseInt(date.substring(0, 4)),
Integer.parseInt(date.substring(5, 7)) - 1, Integer.parseInt(date.substring(8, 10)));
gCal.add(GregorianCalendar.DATE, i);
return sdf_date_format.format(gCal.getTime());
} catch (Exception e) {
// logger.debug("DateUtil.addDay():" + e.toString());
return getDate();
}
}
/**
* 返回日期加X月后的日期
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date
* @param i
* @return
*/
public static String addMonth(String date, int i) {
try {
GregorianCalendar gCal = new GregorianCalendar(Integer.parseInt(date.substring(0, 4)),
Integer.parseInt(date.substring(5, 7)) - 1, Integer.parseInt(date.substring(8, 10)));
gCal.add(GregorianCalendar.MONTH, i);
return sdf_date_format.format(gCal.getTime());
} catch (Exception e) {
// logger.debug("DateUtil.addMonth():" + e.toString());
return getDate();
}
}
/**
* 返回日期加X年后的日期
*
* @author dylan_xu
* @date Mar 11, 2012
* @param date
* @param i
* @return
*/
public static String addYear(String date, int i) {
try {
GregorianCalendar gCal = new GregorianCalendar(Integer.parseInt(date.substring(0, 4)),
Integer.parseInt(date.substring(5, 7)) - 1, Integer.parseInt(date.substring(8, 10)));
gCal.add(GregorianCalendar.YEAR, i);
return sdf_date_format.format(gCal.getTime());
} catch (Exception e) {
// logger.debug("DateUtil.addYear():" + e.toString());
return "";
}
}
/**
* 返回某年某月中的最大天
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static int getMaxDay(int iyear, int imonth) {
int day = 0;
try {
if (imonth == 1 || imonth == 3 || imonth == 5 || imonth == 7 || imonth == 8 || imonth == 10 || imonth == 12) {
day = 31;
} else if (imonth == 4 || imonth == 6 || imonth == 9 || imonth == 11) {
day = 30;
} else if ((0 == (iyear % 4)) && (0 != (iyear % 100)) || (0 == (iyear % 400))) {
day = 29;
} else {
day = 28;
}
return day;
} catch (Exception e) {
// logger.debug("DateUtil.getMonthDay():" + e.toString());
return 1;
}
}
/**
* 格式化日期
*
* @author dylan_xu
* @date Mar 11, 2012
* @param cal
* @param Type
* @param Span
* @return
*/
public static String rollDate(Calendar cal, int Type, int Span) {
try {
String temp = "";
Calendar rolcale;
rolcale = cal;
rolcale.add(Type, Span);
temp = sdf_date_format.format(rolcale.getTime());
return temp;
} catch (Exception e) {
return "";
}
}
/**
* 返回默认的日期格式
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static synchronized String getDatePattern() {
defaultDatePattern = DATETIME_FORMAT;
return defaultDatePattern;
}
/**
* 将指定日期按默认格式进行格式代化成字符串后输出如：yyyy-MM-dd
*
* @author dylan_xu
* @date Mar 11, 2012
* @param aDate
* @return
*/
public static final String getDate(Date aDate) {
SimpleDateFormat df = null;
String returnValue = "";
if (aDate != null) {
df = new SimpleDateFormat(getDatePattern());
returnValue = df.format(aDate);
}
return (returnValue);
}
/**
* 取得给定日期的时间字符串，格式为当前默认时间格式
*
* @author dylan_xu
* @date Mar 11, 2012
* @param theTime
* @return
*/
public static String getTimeNow(Date theTime) {
return getDateTime(timePattern, theTime);
}
/**
* 取得当前时间的Calendar日历对象
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
* @throws ParseException
*/
public Calendar getToday() throws ParseException {
Date today = new Date();
SimpleDateFormat df = new SimpleDateFormat(getDatePattern());
String todayAsString = df.format(today);
Calendar cal = new GregorianCalendar();
cal.setTime(convertStringToDate(todayAsString));
return cal;
}
/**
* 将日期类转换成指定格式的字符串形式
*
* @author dylan_xu
* @date Mar 11, 2012
* @param aMask
* @param aDate
* @return
*/
public static final String getDateTime(String aMask, Date aDate) {
SimpleDateFormat df = null;
String returnValue = "";
if (aDate == null) {
// logger.error("aDate is null!");
} else {
df = new SimpleDateFormat(aMask);
returnValue = df.format(aDate);
}
return (returnValue);
}
/**
* 将指定的日期转换成默认格式的字符串形式
*
* @author dylan_xu
* @date Mar 11, 2012
* @param aDate
* @return
*/
public static final String convertDateToString(Date aDate) {
return getDateTime(getDatePattern(), aDate);
}
/**
* 将日期字符串按指定格式转换成日期类型
*
* @author dylan_xu
* @date Mar 11, 2012
* @param aMask
* 指定的日期格式，如:yyyy-MM-dd
* @param strDate
* 待转换的日期字符串
* @return
* @throws ParseException
*/
public static final Date convertStringToDate(String aMask, String strDate) throws ParseException {
SimpleDateFormat df = null;
Date date = null;
df = new SimpleDateFormat(aMask);
// if (logger.isDebugEnabled()) {
// logger.debug("converting '" + strDate + "' to date with mask '" + aMask + "'");
// }
try {
date = df.parse(strDate);
} catch (ParseException pe) {
// logger.error("ParseException: " + pe);
throw pe;
}
return (date);
}
public static final String formatDate(String format, String strDate) {
SimpleDateFormat df = null;
Date date = null;
df = new SimpleDateFormat(format);
// if (logger.isDebugEnabled()) {
// logger.debug("converting ".concat(strDate).concat(" to date with mask ").concat(format));
// }
try {
date = df.parse(strDate);
} catch (Exception e) {
// logger.error(e.getMessage(), e);
}
return getDateTime(format,date);
}
/**
* 将日期字符串按默认格式转换成日期类型
*
* @author dylan_xu
* @date Mar 11, 2012
* @param strDate
* @return
* @throws ParseException
*/
public static Date convertStringToDate(String strDate) throws ParseException {
Date aDate = null;
try {
// if (logger.isDebugEnabled()) {
// logger.debug("converting date with pattern: " + getDatePattern());
// }
aDate = convertStringToDate(getDatePattern(), strDate);
} catch (ParseException pe) {
// logger.error("Could not convert '" + strDate + "' to a date, throwing exception");
throw new ParseException(pe.getMessage(), pe.getErrorOffset());
}
return aDate;
}
/**
* 返回一个JAVA简单类型的日期字符串
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
public static String getSimpleDateFormat() {
SimpleDateFormat formatter = new SimpleDateFormat();
String NDateTime = formatter.format(new Date());
return NDateTime;
}
/**
* 将指定字符串格式的日期与当前时间比较
*
* @author DYLAN
* @date Feb 17, 2012
* @param strDate
* 需要比较时间
* @return <p>
* int code
* <ul>
* <li>-1 当前时间 < 比较时间</li>
* <li>0 当前时间 = 比较时间</li>
* <li>>=1当前时间 > 比较时间</li>
* </ul>
* </p>
*/
public static int compareToCurTime(String strDate) {
if (StringUtils.isEmpty(strDate)) {
return -1;
}
Date curTime = Calendar.getInstance().getTime();
String strCurTime = null;
try {
strCurTime = sdf_datetime_format.format(curTime);
} catch (Exception e) {
// if (logger.isDebugEnabled()) {
// logger.debug("[Could not format '" + strDate + "' to a date, throwing exception:"
// + e.getLocalizedMessage() + "]");
// }
}
if (StringUtils.isEmpty(strCurTime)) {
return strCurTime.compareTo(strDate);
}
return -1;
}
/**
* 为查询日期添加最小时间
*
* @param param
* @return
*/
@SuppressWarnings("deprecation")
public static Date addStartTime(Date param) {
Date date = param;
try {
date.setHours(0);
date.setMinutes(0);
date.setSeconds(0);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
} catch (Exception ex) {
return date;
}
}
/**
* 为查询日期添加最大时间
*
* @return
*/
@SuppressWarnings("deprecation")
public static Date addEndTime(Date param) {
Date date = param;
try {
date.setHours(23);
date.setMinutes(59);
date.setSeconds(59);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.MILLISECOND, 999);
return calendar.getTime();
} catch (Exception ex) {
return date;
}
}
/**
* 返回系统现在年份中指定月份的天数
*
* @param month
* @return 指定月的总天数
*/
@SuppressWarnings("deprecation")
public static String getMonthLastDay(int month) {
Date date = new Date();
int[][] day = { { 0, 30, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } };
int year = date.getYear() + 1900;
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
return day[1][month] + "";
} else {
return day[0][month] + "";
}
}
/**
* 返回指定年份中指定月份的天数
*
* @param year
* @param month
* @return 指定月的总天数
*/
public static String getMonthLastDay(int year, int month) {
int[][] day = { { 0, 30, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } };
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
return day[1][month] + "";
} else {
return day[0][month] + "";
}
}
/**
* 判断是平年还是闰年
*
* @author dylan_xu
* @date Mar 11, 2012
* @param year
* @return
*/
public static boolean isLeapyear(int year) {
if ((year % 4 == 0 && year % 100 != 0) || (year % 400) == 0) {
return true;
} else {
return false;
}
}
/**
* 取得当前时间的日戳
*
* @author dylan_xu
* @date Mar 11, 2012
* @return
*/
@SuppressWarnings("deprecation")
public static String getTimestamp() {
Date date = Calendar.getInstance().getTime();
String timestamp = "" + (date.getYear() + 1900) + date.getMonth() + date.getDate() + date.getMinutes()
+ date.getSeconds() + date.getTime();
return timestamp;
}
/**
* 取得指定时间的日戳
*
* @return
*/
@SuppressWarnings("deprecation")
public static String getTimestamp(Date date) {
String timestamp = "" + (date.getYear() + 1900) + date.getMonth() + date.getDate() + date.getMinutes()
+ date.getSeconds() + date.getTime();
return timestamp;
}
/**
* @Title: getStartTime
* @Description: 取某一天的最开始的时分秒
* @param param
* @return 参数说明
* @return String 返回类型
*/
public static String getStartTime(Date param) {
return sdf_datetime_format.format(addStartTime(param));
}
public static String getStartTime2(Date param) {
return sdf_datetime_format2.format(addStartTime(param));
}
/**
* @Title: getEndTime
* @Description: 取某一天的结束时分秒
* @param param
* @return 参数说明
* @return String 返回类型
*/
public static String getEndTime(Date param) {
return sdf_datetime_format.format(addEndTime(param));
}
public static String getEndTime2(Date param) {
return sdf_datetime_format2.format(addEndTime(param));
}
/**
* 获得当前时间，格式yyyy-MM-dd hh:mm:ss
*
* @return
*/
public static String getCurrentDate() {
return getCurrentDate(DATETIME_FORMAT);
}
/**
* 获得当前时间，格式自定义
*
* @param format
* @return
*/
public static String getCurrentDate(String format) {
if (StringUtils.isBlank(format)) {
format = DATETIME_FORMAT;
}
Calendar day = Calendar.getInstance();
day.add(Calendar.DATE, 0);
SimpleDateFormat sdf = new SimpleDateFormat(format);// "yyyy-MM-dd"
String date = sdf.format(day.getTime());
return date;
}
/**
* 日期转字符串
*
* @param date
* @return
*/
public static String date2String(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat(DATETIME_FORMAT);
return sdf.format(date);
}
/**
* 获得昨天时间
*
* @return
*/
public static String getYesterdayDate() {
return getYesterdayDate(DATETIME_FORMAT);
}
/**
* 获得昨天时间，格式自定义
*
* @param format
* @return
*/
public static String getYesterdayDate(String format) {
if ("".equals(format)) {
format = DATETIME_FORMAT;
}
Calendar day = Calendar.getInstance();
day.add(Calendar.DATE, -1);
SimpleDateFormat sdf = new SimpleDateFormat(format);// "yyyy-MM-dd"
String date = sdf.format(day.getTime());
return date;
}
/**
* 需要比较的时间 不能为空(null),需要正确的日期格式 ,如：2009-09-12
* 被比较的时间 为空(null)则为当前时间
* @param stype
* 返回值类型 0为多少天，1为多少个月，2为多少年
* @return 举例： compareDate("2009-09-12", null, 0); //比较天
* compareDate("2009-09-12", null, 1);//比较月
* compareDate("2009-09-12", null, 2);//比较年
*/
public static int compareDate(String startDay, String endDay, int stype) {
int n = 0;
String formatStyle = stype == 1 ? "yyyy-MM" : "yyyy-MM-dd";
endDay = endDay == null ? getCurrentDate("yyyy-MM-dd") : endDay;
DateFormat df = new SimpleDateFormat(formatStyle);
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
try {
c1.setTime(df.parse(startDay));
c2.setTime(df.parse(endDay));
} catch (Exception e3) {
System.out.println("wrong occured");
}
// List list = new ArrayList();
while (!c1.after(c2)) { // 循环对比，直到相等，n 就是所要的结果
// list.add(df.format(c1.getTime())); // 这里可以把间隔的日期存到数组中 打印出来
n++;
if (stype == 1) {
c1.add(Calendar.MONTH, 1); // 比较月份，月份+1
} else {
c1.add(Calendar.DATE, 1); // 比较天数，日期+1
}
}
n = n - 1;
if (stype == 2) {
n = (int) n / 365;
}
// System.out.println(startDay+" -- "+endDay+" 相差多少"+u[stype]+":"+n);
return n;
}
/**
* 判断时间是否符合时间格式
*/
public static boolean isDate(String date, String dateFormat) {
if (date != null) {
SimpleDateFormat format = new SimpleDateFormat(dateFormat);
format.setLenient(false);
try {
format.format(format.parse(date));
} catch (ParseException e) {
return false;
}
return true;
}
return false;
}
/**
* 实现给定某日期，判断是星期几 date:必须yyyy-MM-dd格式
*/
public static String getWeekday(String date) {
SimpleDateFormat sd = new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat sdw = new SimpleDateFormat("E");
Date d = null;
try {
d = sd.parse(date);
} catch (ParseException e) {
// logger.error(e.getMessage(), e);
}
return sdw.format(d);
}
/**
* method 将字符串类型的日期转换为一个timestamp（时间戳记java.sql.Timestamp）
*
* @param dateString
* 需要转换为timestamp的字符串
* @return dataTime timestamp
*/
public final static Timestamp string2Time(String dateString) {
DateFormat dateFormat;
dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);// 设定格式
dateFormat.setLenient(false);
Date date = null;
try {
date = dateFormat.parse(dateString);
} catch (ParseException e) {
// logger.error(e.getMessage(), e);
}
// java.sql.Timestamp dateTime = new java.sql.Timestamp(date.getTime());
return new Timestamp(date.getTime());// Timestamp类型,timeDate.getTime()返回一个long型
}
/**
* method 将字符串类型的日期转换为一个Date（java.sql.Date）
*
* @param dateString
* 需要转换为Date的字符串
* @return dataTime Date
*/
public final static java.sql.Date string2Date(String dateString) {
DateFormat dateFormat;
dateFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
dateFormat.setLenient(false);
Date date = null;
try {
date = dateFormat.parse(dateString);
} catch (ParseException e) {
// logger.error(e.getMessage(), e);
}
// java.sql.Date dateTime = new java.sql.Date(date.getTime());// sql类型
return new java.sql.Date(date.getTime());
}
/**
* @Title: string2Date
* @Description:
* @param dateString
* @param df
* @return 参数说明
* @return java.util.Date 返回类型
*/
public final static Date string2Date(String dateString,String df) {
DateFormat dateFormat = new SimpleDateFormat(df, Locale.SIMPLIFIED_CHINESE);
dateFormat.setLenient(false);
Date date = null;
try {
date = dateFormat.parse(dateString);
} catch (ParseException e) {
// logger.error(e.getMessage(), e);
}
return date;
}
/**
* 计算两个日期之间相差的天数
*
* @param date1
* @param date2
* @return
*/
public static int daysBetween(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) / (1000 * 3600 * 24);
return Integer.parseInt(String.valueOf(between_days));
}
/**
* 取得当前日期N天后的日期
*
* @param days
* @return
*/
public static Date addDays(int days) {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_MONTH, days);
return cal.getTime();
}
/**
* 取得指定日期N天后的日期
*
* @param date
* @param days
* @return
*/
public static Date addXDays(Date date, int days) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_MONTH, days);
return cal.getTime();
}
// 记录考勤， 记录迟到、早退时间
public static String getState() {
String state = "正常";
DateFormat df = new SimpleDateFormat("HH:mm:ss");
Date d = new Date();
try {
Date d1 = df.parse("08:00:00");
Date d2 = df.parse(df.format(d));
Date d3 = df.parse("17:30:00");
int t1 = (int) d1.getTime();
int t2 = (int) d2.getTime();
int t3 = (int) d3.getTime();
if (t2 < t1) {
long between = (t1 - t2) / 1000;// 除以1000是为了转换成秒
long hour1 = between % (24 * 3600) / 3600;
long minute1 = between % 3600 / 60;
state = "迟到 ：" + hour1 + "时" + minute1 + "分";
} else if (t2 < t3) {
long between = (t3 - t2) / 1000;// 除以1000是为了转换成秒
long hour1 = between % (24 * 3600) / 3600;
long minute1 = between % 3600 / 60;
state = "早退 ：" + hour1 + "时" + minute1 + "分";
}
return state;
} catch (Exception e) {
return state;
}
}
/**
* 得到二个日期间的间隔天数
*/
public static String getTwoDay(String sj1, String sj2) {
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
long day = 0;
try {
Date date = myFormatter.parse(sj1);
Date mydate = myFormatter.parse(sj2);
day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
} catch (Exception e) {
return "";
}
return day + "";
}
/**
* 根据一个日期，返回是星期几的字符串
*
* @param sdate
* @return
*/
public static String getWeek(String sdate) {
// 再转换为时间
Date date = strToDate(sdate);
Calendar c = Calendar.getInstance();
c.setTime(date);
// int hour=c.get(Calendar.DAY_OF_WEEK);
// hour中存的就是星期几了，其范围 1~7
// 1=星期日 7=星期六，其他类推
return new SimpleDateFormat("EEEE").format(c.getTime());
}
/**
* 将短时间格式字符串转换为时间 yyyy-MM-dd
*
* @param strDate
* @return
*/
public static Date strToDate(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
/**
* 两个时间之间的天数
*
* @param date1
* @param date2
* @return
*/
public static long getDays(String date1, String date2) {
if (date1 == null || date1.equals(""))
return 0;
if (date2 == null || date2.equals(""))
return 0;
// 转换为标准时间
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
Date date = null;
Date mydate = null;
try {
date = myFormatter.parse(date1);
mydate = myFormatter.parse(date2);
} catch (Exception e) {
}
long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
return day;
}
// 计算当月最后一天,返回字符串
public static String getDefaultDay() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, 1);// 加一个月，变为下月的1号
lastDate.add(Calendar.DATE, -1);// 减去一天，变为当月最后一天
str = sdf.format(lastDate.getTime());
return str;
}
// 计算当月最后一天,返回字符串
public static String getLastDayTimeOfMonth() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat(DATETIME_FORMAT);
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, 1);// 加一个月，变为下月的1号
lastDate.add(Calendar.DATE, -1);// 减去一天，变为当月最后一天
lastDate.set(Calendar.HOUR_OF_DAY, 23);
lastDate.set(Calendar.MINUTE, 59);
lastDate.set(Calendar.SECOND, 59);
str = sdf.format(lastDate.getTime());
return str;
}
// 计算当月最后一天,返回字符串
public static String getLastDayTimeOfMonth2() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat(yyyyMMddHHmmss_FORMAT);
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, 1);// 加一个月，变为下月的1号
lastDate.add(Calendar.DATE, -1);// 减去一天，变为当月最后一天
lastDate.set(Calendar.HOUR_OF_DAY, 23);
lastDate.set(Calendar.MINUTE, 59);
lastDate.set(Calendar.SECOND, 59);
str = sdf.format(lastDate.getTime());
return str;
}
// 上月第一天
public static String getPreviousMonthFirst() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, -1);// 减一个月，变为下月的1号
// lastDate.add(Calendar.DATE,-1);//减去一天，变为当月最后一天
str = sdf.format(lastDate.getTime());
return str;
}
// 获取当月第一天
public static String getFirstDayOfMonth() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
str = sdf.format(lastDate.getTime());
return str;
}
public static String getFirstDayTimeOfMonth() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat(DATETIME_FORMAT);
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.set(Calendar.HOUR_OF_DAY, 0);
lastDate.set(Calendar.MINUTE, 0);
lastDate.set(Calendar.SECOND, 0);
str = sdf.format(lastDate.getTime());
return str;
}
public static String getFirstDayTimeOfMonth2() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat(yyyyMMddHHmmss_FORMAT);
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.set(Calendar.HOUR_OF_DAY, 0);
lastDate.set(Calendar.MINUTE, 0);
lastDate.set(Calendar.SECOND, 0);
str = sdf.format(lastDate.getTime());
return str;
}
// 获得本周星期日的日期
public static String getCurrentWeekday() {
weeks = 0;
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + 6);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获取当天时间
public static String getNowTime(String dateformat) {
Date now = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat(dateformat);// 可以方便地修改日期格式
String hehe = dateFormat.format(now);
return hehe;
}
// 获得当前日期与本周日相差的天数
public static int getMondayPlus() {
Calendar cd = Calendar.getInstance();
// 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK) - 1; // 因为按中国礼拜一作为第一天所以这里减1
if (dayOfWeek == 1) {
return 0;
} else {
return 1 - dayOfWeek;
}
}
// 获得本周一的日期
public static String getMondayOFWeek() {
weeks = 0;
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获得相应周的周六的日期
public static String getSaturday() {
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks + 6);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获得上周星期日的日期
public static String getPreviousWeekSunday() {
weeks = 0;
weeks--;
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + weeks);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获得上周星期一的日期
public static String getPreviousWeekday() {
weeks--;
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获得下周星期一的日期
public static String getNextMonday() {
weeks++;
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + 7);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
// 获得下周星期日的日期
public static String getNextSunday() {
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 + 6);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
public static int getMonthPlus() {
Calendar cd = Calendar.getInstance();
int monthOfNumber = cd.get(Calendar.DAY_OF_MONTH);
cd.set(Calendar.DATE, 1);// 把日期设置为当月第一天
cd.roll(Calendar.DATE, -1);// 日期回滚一天，也就是最后一天
MaxDate = cd.get(Calendar.DATE);
if (monthOfNumber == 1) {
return -MaxDate;
} else {
return 1 - monthOfNumber;
}
}
// 获得上月最后一天的日期
public static String getPreviousMonthEnd() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.MONTH, -1);// 减一个月
lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
lastDate.roll(Calendar.DATE, -1);// 日期回滚一天，也就是本月最后一天
str = sdf.format(lastDate.getTime());
return str;
}
// 获得下个月第一天的日期
public static String getNextMonthFirst() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.MONTH, 1);// 减一个月
lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
str = sdf.format(lastDate.getTime());
return str;
}
// 获得下个月最后一天的日期
public static String getNextMonthEnd() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.MONTH, 1);// 加一个月
lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
lastDate.roll(Calendar.DATE, -1);// 日期回滚一天，也就是本月最后一天
str = sdf.format(lastDate.getTime());
return str;
}
// 获得明年最后一天的日期
public static String getNextYearEnd() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.YEAR, 1);// 加一个年
lastDate.set(Calendar.DAY_OF_YEAR, 1);
lastDate.roll(Calendar.DAY_OF_YEAR, -1);
str = sdf.format(lastDate.getTime());
return str;
}
// 获得明年第一天的日期
public static String getNextYearFirst() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.YEAR, 1);// 加一个年
lastDate.set(Calendar.DAY_OF_YEAR, 1);
str = sdf.format(lastDate.getTime());
return str;
}
// 获得本年有多少天
public static int getMaxYear() {
Calendar cd = Calendar.getInstance();
cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天
cd.roll(Calendar.DAY_OF_YEAR, -1);// 把日期回滚一天。
int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
return MaxYear;
}
public static int getYearPlus() {
Calendar cd = Calendar.getInstance();
int yearOfNumber = cd.get(Calendar.DAY_OF_YEAR);// 获得当天是一年中的第几天
cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天
cd.roll(Calendar.DAY_OF_YEAR, -1);// 把日期回滚一天。
int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
if (yearOfNumber == 1) {
return -MaxYear;
} else {
return 1 - yearOfNumber;
}
}
// 获得本年第一天的日期
public static String getCurrentYearFirst() {
int yearPlus = getYearPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, yearPlus);
Date yearDay = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preYearDay = df.format(yearDay);
return preYearDay;
}
// 获得本年最后一天的日期 *
public static String getCurrentYearEnd() {
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");// 可以方便地修改日期格式
String years = dateFormat.format(date);
return years + "-12-31";
}
// 获得上年第一天的日期 *
public static String getPreviousYearFirst() {
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");// 可以方便地修改日期格式
String years = dateFormat.format(date);
int years_value = Integer.parseInt(years);
years_value--;
return years_value + "-1-1";
}
// 获得上年最后一天的日期
public static String getPreviousYearEnd() {
weeks--;
int yearPlus = getYearPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, yearPlus + MaxYear * weeks + (MaxYear - 1));
Date yearDay = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preYearDay = df.format(yearDay);
getThisSeasonTime(11);
return preYearDay;
}
// 获得本季度
public static String getThisSeasonTime(int month) {
int array[][] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, { 10, 11, 12 } };
int season = 1;
if (month >= 1 && month <= 3) {
season = 1;
}
if (month >= 4 && month <= 6) {
season = 2;
}
if (month >= 7 && month <= 9) {
season = 3;
}
if (month >= 10 && month <= 12) {
season = 4;
}
int start_month = array[season - 1][0];
int end_month = array[season - 1][2];
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");// 可以方便地修改日期格式
String years = dateFormat.format(date);
int years_value = Integer.parseInt(years);
int start_days = 1;// years+"-"+String.valueOf(start_month)+"-1";//getLastDayOfMonth(years_value,start_month);
int end_days = getLastDayOfMonth(years_value, end_month);
String seasonDate = years_value + "-" + start_month + "-" + start_days + ";" + years_value + "-" + end_month
+ "-" + end_days;
return seasonDate;
}
/**
* 获取某年某月的最后一天
*
* @param year
* 年
* @param month
* 月
* @return 最后一天
*/
public static int getLastDayOfMonth(int year, int month) {
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {
return 31;
}
if (month == 4 || month == 6 || month == 9 || month == 11) {
return 30;
}
if (month == 2) {
if (isLeapYear(year)) {
return 29;
} else {
return 28;
}
}
return 0;
}
/**
* 是否闰年
*
* @param year
* 年
* @return
*/
public static boolean isLeapYear(int year) {
return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
}
/**
*
* @Title: getNowTimeStampTime
* @Description: 获取当前时间（TimeStamp类型的）
* @return
* @return Timestamp
* @throws
*/
public static Timestamp getNowTimeStampTime() {
Timestamp time = new Timestamp(System.currentTimeMillis());
return time;
}
/**
*
* @Title: calcTwoTimeDifferInOneHour
* @Description: 计算最后一次访问时间距离现在时间是不是在1小时之内。
* @param lastestVisitTime
* 最后一次访问的毫秒时间
* @param nowTime
* 现在的毫秒时间
* @return void
* @throws
*/
public static boolean calcTwoTimeDifferInOneHour(Long lastestVisitTime, Long nowTime) {
long differ = nowTime - lastestVisitTime;// 两个时间的毫秒差
long differHour = differ / (60 * 60 * 1000);
if (differHour < 1) {
return true;
}
return false;
}
/**
* @Title: compareDate
* @Description: 比较时间大小（第一个时间在第二个时间之前返回-1；第一个时间在第二个时间之后返回1，相同返回0）
* @param dt1
* @param dt2
* @return 参数说明
* @return int 返回类型
*/
public static int compareDate(Date dt1, Date dt2) {
try {
if (dt1.getTime() > dt2.getTime()) {
return 1;
} else if (dt1.getTime() < dt2.getTime()) {
return -1;
} else {
return 0;
}
} catch (Exception e) {
// logger.error(e.getMessage(), e);
}
return 0;
}
public static String getPreviousMonth(String dateFormat) {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
Calendar lastDate = Calendar.getInstance();
lastDate.add(Calendar.MONTH, -1);
str = sdf.format(lastDate.getTime());
return str;
}
public static Date geLastWeekMonday(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(getThisWeekMonday(date));
cal.add(Calendar.DATE, -7);
return cal.getTime();
}
public static Date getThisWeekMonday(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
// 获得当前日期是一个星期的第几天
int dayWeek = cal.get(Calendar.DAY_OF_WEEK);
if (1 == dayWeek) {
cal.add(Calendar.DAY_OF_MONTH, -1);
}
// 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一
cal.setFirstDayOfWeek(Calendar.MONDAY);
// 获得当前日期是一个星期的第几天
int day = cal.get(Calendar.DAY_OF_WEEK);
// 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值
cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);
return cal.getTime();
}
public static String getNextWeekMonday(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(getThisWeekMonday(date));
cal.add(Calendar.DATE, 7);
return sdf_date_format.format(cal.getTime());
}
public static String getNextWeekSunday(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(getThisWeekMonday(date));
cal.add(Calendar.DATE, 13);
return sdf_date_format.format(cal.getTime());
}
public static void main(String[] args) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
try {
Date date = sdf.parse("2019-07-15");
System.out.println("今天是" + sdf.format(date));
System.out.println("上周一" + sdf.format(geLastWeekMonday(date)));
System.out.println("本周一" + sdf.format(getThisWeekMonday(date)));
System.out.println("下周一" + sdf.format(getNextWeekMonday(date)));
System.out.println("下周日" + sdf.format(getNextWeekSunday(date)));
} catch (Exception e) {
e.printStackTrace();
} }
}