日期工具 -DateUtils
2016-07-27 16:37
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需要pom.xml文件中引入：
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
用于使用：org.apache.commons.lang3.StringUtils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 日期工具
*/
public class DateUtils {
static Logger logger = LoggerFactory.getLogger(DateUtils.class);
public static final String DATE_SHORT = "yyyy-MM-dd";
public static final String DATE_FORMAT = "yyyy-MM-dd hh:mm:ss";
public static final String yyyyMMddHHmmss = "yyyyMMddHHmmss";
public static final String yyyyMMdd = "yyyyMMdd";
public static final String defaultPattern = "yyyy-MM-dd HH:mm:ss";
/**
* 获取date前lastDay的时间
* @param lastDay
* @return
*/
public static Date getLastDay(Date date,int lastDay){
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, -lastDay);
return cal.getTime();
}
/**
*
* @param date 当前日期
* @param Day 天数（如果day数为负数,说明是此日期前的天数）
* @return
*/
public static Date getBeforDay(Date date,int Day){
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, Day);
return cal.getTime();
}
/**
* @param dateA
* @param dateB
* @return
*/
public static boolean isSameDay(Date dateA, Date dateB) {
return org.apache.commons.lang.time.DateUtils.isSameDay(dateA, dateB);
}
/**
* 根据日期时间字符串转换成date对象
* @param formatString
* @return
*/
public static Date getDateByFormatString(String formatString,String pattern) {
try {
return new SimpleDateFormat(pattern).parse(formatString);
} catch (ParseException e) {
logger.error("格式化串为{}的时间转换错误",formatString);
return null;
}
}
public static int subDay(Date minuend, Date subtrahend) {
long diff = minuend.getTime() - subtrahend.getTime();
int diffDay = (int) (diff / 1000 / 60 / 60 / 24);
return diffDay;
}
public static int dayOfWeek(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int week = cal.get(Calendar.DAY_OF_WEEK);
return week;
}
public static int year(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return cal.get(Calendar.YEAR);
}
public static Date getLastDayOfYear() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.MONTH, 11);
cal.set(Calendar.DAY_OF_MONTH, 31);
return cal.getTime();
}
public static String format(Date date) {
return new SimpleDateFormat(defaultPattern).format(date);
}
public static String formatShort(Date date) {
return new SimpleDateFormat(DATE_SHORT).format(date);
}
public static String formatToyyyyMMdd(Date date) {
return new SimpleDateFormat(yyyyMMdd).format(date);
}
public static List<Date> getDayBeginAndEnd() {
List<Date> list = new ArrayList<Date>();
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
Date start = cal.getTime();
list.add(start);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
list.add(cal.getTime());
return list;
}
//获取今天的开始时间
public static Date todayBeginTime(){
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 00);
return cal.getTime();
}
/**
* 昨天开始时间
* @return
*/
public static Date yesterdaybeginTime(){
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -5);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE,00);
cal.set(Calendar.SECOND, 00);
return cal.getTime();
}
/**
* 昨天结束时间
* @return
*/
public static Date yesterdayEndTime(){
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -1);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE,59);
cal.set(Calendar.SECOND, 59);
return cal.getTime();
}
public static boolean isMatchStop(Date playingTime){
if(playingTime!=null){
if(playingTime.after(new Date())){
return false;//未停售
}else{
return true;//停售
}
}
return false;
}
/**
*
* @return yyyy
*/
public static String getNowYear() {
// TODO Auto-generated method stub
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
return String.valueOf(cal.get(Calendar.YEAR));
}
public static Date converTime(String closeTime){
if(StringUtils.isNotBlank(closeTime)){
SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddHHmmss");
try {
return sdf.parse(closeTime);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
public static String getWeekDayWithNumber(Integer num){
String num2=String.valueOf(num);
switch(num2){
case "1":return "周日";
case "2":return "周一";
case "3":return "周二";
case "4":return "周三";
case "5":return "周四";
case "6":return "周五";
case "7":return "周六";
default :return "";
}
}
public static String getWeekDayWithTime(Date playingTime){
if(playingTime!=null){
Calendar cal=Calendar.getInstance();
cal.setTime(playingTime);
int day=cal.get(Calendar.DAY_OF_WEEK);
switch(day){
case 1:return "周日";
case 2:return "周一";
case 3:return "周二";
case 4:return "周三";
case 5:return "周四";
case 6:return "周五";
case 7:return "周六";
}
}
return "";
}
/**
* 获取d小时之前的时间
* @param date
* @param d
* @return
*/
public static Date getLastHoursTime(Date date, int d) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.HOUR, -d);
return cal.getTime();
}
/**
* 计算两个时间的分钟差值
* @param maxDate
* @param minDate
* @return
*/
public static Long getMinuteOfTwoDate(Date maxDate, Date minDate) {
long millSeconds = maxDate.getTime()-minDate.getTime();
return millSeconds/1000/60;
}
/**
* 计算两个时间的秒差值
* @param maxDate
* @param minDate
* @return
*/
public static Long getSecondOfTwoDate(Date maxDate, Date minDate) {
long millSeconds = maxDate.getTime()-minDate.getTime();
return millSeconds/1000;
}
/**
*
* 将开始日期和结束日期中间的年月分装成一个map,
* map的key是年份，value是月份的List集合
* @param earlyDate
* @param lastDate
* @return
*/
public static Map<Integer,List> splitDate(Date earlyDate,Date lastDate){
Map<Integer,List> map= new LinkedHashMap<Integer,List>();
Calendar cal= Calendar.getInstance();
cal.setTime(earlyDate);
int earlyYear=cal.get(Calendar.YEAR);
int earlyMonth=cal.get(Calendar.MONTH)+1;
cal.setTime(lastDate);
int lastYear=cal.get(Calendar.YEAR);
int lastMonth=cal.get(Calendar.MONTH)+1;
List<Integer> monthList1=new ArrayList<Integer>();
List<Integer> monthList2=new ArrayList<Integer>();
List<Integer> monthList3=new ArrayList<Integer>();
if(earlyYear==lastYear){
for(int i=earlyMonth;i<=lastMonth;i++){
monthList1.add(i);
}
}else{
for(int i=earlyMonth;i<=12;i++){
monthList1.add(i);
}
for(int i=1;i<=12;i++){
monthList2.add(i);
}
for(int i=1;i<=lastMonth;i++){
monthList3.add(i);
}
}
for(int i=lastYear;i>=earlyYear;i--){
if(i==lastYear)
map.put(i, monthList1);
else if(i==earlyYear)
map.put(i, monthList3);
else
map.put(i, monthList2);
}
return map;
}
/**
* 将时间参数转化为一个时间段
* @param year
* @param month
* @return
*/
public static Date[] stringToDate(int year,int month){
Date[] date=new Date[2];
String early=null;
String last=null;
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
if(month==year&&month==0){
early="1970-01-01 00:00:00";
last=formatter.format(new Date()).toString();
}
else if(month>0){
early=""+year+"-"+month+"-01 00:00:00";
last=""+year+"-"+month+"-31 23:59:59";
}
else{
early=""+year+"-01-01 00:00:00";
last=""+year+"-12-31 23:59:59";
}
try {
date[0]=formatter.parse(early);
date[1]=formatter.parse(last);
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
}
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
用于使用：org.apache.commons.lang3.StringUtils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 日期工具
*/
public class DateUtils {
static Logger logger = LoggerFactory.getLogger(DateUtils.class);
public static final String DATE_SHORT = "yyyy-MM-dd";
public static final String DATE_FORMAT = "yyyy-MM-dd hh:mm:ss";
public static final String yyyyMMddHHmmss = "yyyyMMddHHmmss";
public static final String yyyyMMdd = "yyyyMMdd";
public static final String defaultPattern = "yyyy-MM-dd HH:mm:ss";
/**
* 获取date前lastDay的时间
* @param lastDay
* @return
*/
public static Date getLastDay(Date date,int lastDay){
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, -lastDay);
return cal.getTime();
}
/**
*
* @param date 当前日期
* @param Day 天数（如果day数为负数,说明是此日期前的天数）
* @return
*/
public static Date getBeforDay(Date date,int Day){
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, Day);
return cal.getTime();
}
/**
* @param dateA
* @param dateB
* @return
*/
public static boolean isSameDay(Date dateA, Date dateB) {
return org.apache.commons.lang.time.DateUtils.isSameDay(dateA, dateB);
}
/**
* 根据日期时间字符串转换成date对象
* @param formatString
* @return
*/
public static Date getDateByFormatString(String formatString,String pattern) {
try {
return new SimpleDateFormat(pattern).parse(formatString);
} catch (ParseException e) {
logger.error("格式化串为{}的时间转换错误",formatString);
return null;
}
}
public static int subDay(Date minuend, Date subtrahend) {
long diff = minuend.getTime() - subtrahend.getTime();
int diffDay = (int) (diff / 1000 / 60 / 60 / 24);
return diffDay;
}
public static int dayOfWeek(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int week = cal.get(Calendar.DAY_OF_WEEK);
return week;
}
public static int year(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return cal.get(Calendar.YEAR);
}
public static Date getLastDayOfYear() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.MONTH, 11);
cal.set(Calendar.DAY_OF_MONTH, 31);
return cal.getTime();
}
public static String format(Date date) {
return new SimpleDateFormat(defaultPattern).format(date);
}
public static String formatShort(Date date) {
return new SimpleDateFormat(DATE_SHORT).format(date);
}
public static String formatToyyyyMMdd(Date date) {
return new SimpleDateFormat(yyyyMMdd).format(date);
}
public static List<Date> getDayBeginAndEnd() {
List<Date> list = new ArrayList<Date>();
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
Date start = cal.getTime();
list.add(start);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
list.add(cal.getTime());
return list;
}
//获取今天的开始时间
public static Date todayBeginTime(){
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 00);
return cal.getTime();
}
/**
* 昨天开始时间
* @return
*/
public static Date yesterdaybeginTime(){
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -5);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE,00);
cal.set(Calendar.SECOND, 00);
return cal.getTime();
}
/**
* 昨天结束时间
* @return
*/
public static Date yesterdayEndTime(){
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -1);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE,59);
cal.set(Calendar.SECOND, 59);
return cal.getTime();
}
public static boolean isMatchStop(Date playingTime){
if(playingTime!=null){
if(playingTime.after(new Date())){
return false;//未停售
}else{
return true;//停售
}
}
return false;
}
/**
*
* @return yyyy
*/
public static String getNowYear() {
// TODO Auto-generated method stub
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
return String.valueOf(cal.get(Calendar.YEAR));
}
public static Date converTime(String closeTime){
if(StringUtils.isNotBlank(closeTime)){
SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddHHmmss");
try {
return sdf.parse(closeTime);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
public static String getWeekDayWithNumber(Integer num){
String num2=String.valueOf(num);
switch(num2){
case "1":return "周日";
case "2":return "周一";
case "3":return "周二";
case "4":return "周三";
case "5":return "周四";
case "6":return "周五";
case "7":return "周六";
default :return "";
}
}
public static String getWeekDayWithTime(Date playingTime){
if(playingTime!=null){
Calendar cal=Calendar.getInstance();
cal.setTime(playingTime);
int day=cal.get(Calendar.DAY_OF_WEEK);
switch(day){
case 1:return "周日";
case 2:return "周一";
case 3:return "周二";
case 4:return "周三";
case 5:return "周四";
case 6:return "周五";
case 7:return "周六";
}
}
return "";
}
/**
* 获取d小时之前的时间
* @param date
* @param d
* @return
*/
public static Date getLastHoursTime(Date date, int d) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.HOUR, -d);
return cal.getTime();
}
/**
* 计算两个时间的分钟差值
* @param maxDate
* @param minDate
* @return
*/
public static Long getMinuteOfTwoDate(Date maxDate, Date minDate) {
long millSeconds = maxDate.getTime()-minDate.getTime();
return millSeconds/1000/60;
}
/**
* 计算两个时间的秒差值
* @param maxDate
* @param minDate
* @return
*/
public static Long getSecondOfTwoDate(Date maxDate, Date minDate) {
long millSeconds = maxDate.getTime()-minDate.getTime();
return millSeconds/1000;
}
/**
*
* 将开始日期和结束日期中间的年月分装成一个map,
* map的key是年份，value是月份的List集合
* @param earlyDate
* @param lastDate
* @return
*/
public static Map<Integer,List> splitDate(Date earlyDate,Date lastDate){
Map<Integer,List> map= new LinkedHashMap<Integer,List>();
Calendar cal= Calendar.getInstance();
cal.setTime(earlyDate);
int earlyYear=cal.get(Calendar.YEAR);
int earlyMonth=cal.get(Calendar.MONTH)+1;
cal.setTime(lastDate);
int lastYear=cal.get(Calendar.YEAR);
int lastMonth=cal.get(Calendar.MONTH)+1;
List<Integer> monthList1=new ArrayList<Integer>();
List<Integer> monthList2=new ArrayList<Integer>();
List<Integer> monthList3=new ArrayList<Integer>();
if(earlyYear==lastYear){
for(int i=earlyMonth;i<=lastMonth;i++){
monthList1.add(i);
}
}else{
for(int i=earlyMonth;i<=12;i++){
monthList1.add(i);
}
for(int i=1;i<=12;i++){
monthList2.add(i);
}
for(int i=1;i<=lastMonth;i++){
monthList3.add(i);
}
}
for(int i=lastYear;i>=earlyYear;i--){
if(i==lastYear)
map.put(i, monthList1);
else if(i==earlyYear)
map.put(i, monthList3);
else
map.put(i, monthList2);
}
return map;
}
/**
* 将时间参数转化为一个时间段
* @param year
* @param month
* @return
*/
public static Date[] stringToDate(int year,int month){
Date[] date=new Date[2];
String early=null;
String last=null;
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
if(month==year&&month==0){
early="1970-01-01 00:00:00";
last=formatter.format(new Date()).toString();
}
else if(month>0){
early=""+year+"-"+month+"-01 00:00:00";
last=""+year+"-"+month+"-31 23:59:59";
}
else{
early=""+year+"-01-01 00:00:00";
last=""+year+"-12-31 23:59:59";
}
try {
date[0]=formatter.parse(early);
date[1]=formatter.parse(last);
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
}
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