자바 날짜 시간 에 대한 도구 클래스
22870 단어 JavaSE
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.Random;
public class DateUtil {
public static String pattern="yyyy-MM-dd";
public static SimpleDateFormat formatter = new SimpleDateFormat(pattern);
public static SimpleDateFormat formatter2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public static DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);
public static DateTimeFormatter getDateTimeFormatter(){
return dateFormatter;
}
/**
*
*
* @return yyyy-MM-dd HH:mm:ss
*/
public static Date getNowDate() {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(new Date());
ParsePosition pos = new ParsePosition(8);
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
/**
*
*
* @return yyyy-MM-dd
*/
public static Date getNowDateShort() {
String dateString = formatter.format(new Date());
ParsePosition pos = new ParsePosition(8);
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
/**
*
*
* @return yyyy-MM-dd HH:mm:ss
*/
public static String getStringDate() {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(new Date());
return dateString;
}
/**
*
* @return yyyyMMddHHmmss
*/
public static String getStringAllDate() {
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmssSSS");
String dateString = formatter.format(new Date());
return dateString;
}
/**
*
*
* @return yyyy-MM-dd
*/
public static String getStringDateShort() {
String dateString = formatter.format( new Date());
return dateString;
}
/**
* : ; HH:mm:ss
*
* @return
*/
public static String getTimeShort() {
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
String dateString = formatter.format(new Date());
return dateString;
}
/**
* yyyy-MM-dd HH:mm:ss
*
* @param strDate
* @return
*/
public static Date strToDateLong(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
/**
* yyyy-MM-dd HH:mm:ss
*
* @param dateDate
* @return
*/
public static String dateToStrLong(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(dateDate);
return dateString;
}
/**
* yyyy-MM-dd
*
* @param dateDate
* @param k
* @return
*/
public static String dateToStr(java.util.Date dateDate) {
String dateString = formatter.format(dateDate);
return dateString;
}
public static String dateToStr(java.time.LocalDate dateDate) {
String dateString = dateFormatter.format(dateDate);
return dateString;
}
/**
* yyyy-MM-dd
*
* @param strDate
* @return
*/
public static Date strToDate(String strDate) {
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
/**
* yyyy-MM-dd HH:mm:ss
*
* @param strDate
* @return
*/
public static Timestamp strToDateSql(String strDate) {
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter2.parse(strDate, pos);
return new Timestamp(strtodate.getTime());
}
/**
*
*
* @return
*/
public static Date getNow() {
Date currentTime = new Date();
return currentTime;
}
/**
*
*
* @param day
* @return
*/
public static Date getLastDate(long day) {
Date date = new Date();
long date_3_hm = date.getTime() - 3600000 * 34 * day;
Date date_3_hm_date = new Date(date_3_hm);
return date_3_hm_date;
}
/**
*
*
* @return yyyyMMdd HHmmss
*/
public static String getStringToday() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
String dateString = formatter.format(currentTime);
return dateString;
}
/**
*
* ：
*
* @author Tony
* @version 2016 12 16 4:41:51
*/
public static String getTodayShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
String dateString = formatter.format(currentTime);
return dateString;
}
/**
*
* @Description: ,
* ： 568
* ：00:09:28
* null “”
* :00:00:00
* @param @param value
* @param @return
* @return String
* @throws
* @author Tony
* @date 2016-4-20
*/
public static String getHHMMSS(String value){
String hour="00";
String minute="00";
String second="00";
if(value!=null&&!value.trim().equals("")){
int v_int=Integer.valueOf(value);
hour=v_int/3600+"";// ;
minute=v_int%3600/60+"";// ;
second=v_int%3600%60+"";// ;
}
return (hour.length()>1?hour:"0"+hour)+":"+(minute.length()>1?minute:"0"+minute)+":"+(second.length()>1?second:"0"+second);
}
/**
*
*/
public static String getHour() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
String hour;
hour = dateString.substring(11, 13);
return hour;
}
/**
*
*
* @return
*/
public static String getTime() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
String min;
min = dateString.substring(14, 16);
return min;
}
/**
* ， yyyyMMdd， y 。
*
* @param sformat
* yyyyMMddhhmmss
* @return
*/
public static String getUserDate(String sformat) {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat(sformat);
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* , "HH:MM" ，
*/
public static String getTwoHour(String st1, String st2) {
String[] kk = null;
String[] jj = null;
kk = st1.split(":");
jj = st2.split(":");
if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))
return "0";
else {
double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;
double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;
if ((y - u) > 0)
return y - u + "";
else
return "0";
}
}
/**
*
*/
public static String getTwoDay(String sj1, String sj2) {
long day = 0;
try {
java.util.Date date = formatter.parse(sj1);
java.util.Date mydate = formatter.parse(sj2);
day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
} catch (Exception e) {
return "";
}
return day + "";
}
/**
* , JJ .
*/
public static String getPreTime(String sj1, String jj) {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String mydate1 = "";
try {
Date date1 = format.parse(sj1);
long Time = (date1.getTime() / 1000) + Integer.parseInt(jj) * 60;
date1.setTime(Time * 1000);
mydate1 = format.format(date1);
} catch (Exception e) {
}
return mydate1;
}
/**
* ,nowdate(yyyy-mm-dd) ,delay
*/
public static String getNextDay(String nowdate, String delay) {
try{
String mdate = "";
Date d = strToDate(nowdate);
long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60;
d.setTime(myTime * 1000);
mdate = formatter.format(d);
return mdate;
}catch(Exception e){
return "";
}
}
/**
*
* ：
* ， ：yyyy-MM-dd HH:mm:ss
* day ，
* ，
* @author Tony
* @version 2016 11 29 11:02:56
*/
public static String getFromNow(int day) {
Date date = new Date();
long dateTime = (date.getTime() / 1000) + day * 24 * 60 * 60;
date.setTime(dateTime * 1000);
return formatter2.format(date);
}
/**
*
*
* @param ddate
* @return
*/
public static boolean isLeapYear(String ddate) {
/**
* ： 1. 400 ， ： 2. 4 3. 4 100
* 3. 4 100
*/
Date d = strToDate(ddate);
GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
gc.setTime(d);
int year = gc.get(Calendar.YEAR);
if ((year % 400) == 0)
return true;
else if ((year % 4) == 0) {
if ((year % 100) == 0)
return false;
else
return true;
} else
return false;
}
/**
* 26 Apr 2006
*
* @param str
* @return
*/
public static String getEDate(String str) {
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(str, pos);
String j = strtodate.toString();
String[] k = j.split(" ");
return k[2] + k[1].toUpperCase() + k[5].substring(2, 4);
}
/**
*
*
* @param dat
* @return
*/
public static String getEndDateOfMonth(String dat) {// yyyy-MM-dd
String str = dat.substring(0, 8);
String month = dat.substring(5, 7);
int mon = Integer.parseInt(month);
if (mon == 1 || mon == 3 || mon == 5 || mon == 7 || mon == 8 || mon == 10 || mon == 12) {
str += "31";
} else if (mon == 4 || mon == 6 || mon == 9 || mon == 11) {
str += "30";
} else {
if (isLeapYear(dat)) {
str += "29";
} else {
str += "28";
}
}
return str;
}
/**
*
*
* @param date1
* @param date2
* @return
*/
public static boolean isSameWeekDates(Date date1, Date date2) {
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(date1);
cal2.setTime(date2);
int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
if (0 == subYear) {
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {
// 12
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
return true;
}
return false;
}
/**
* ,
*
* @return
*/
public static String getSeqWeek() {
Calendar c = Calendar.getInstance(Locale.CHINA);
String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR));
if (week.length() == 1)
week = "0" + week;
String year = Integer.toString(c.get(Calendar.YEAR));
return year + week;
}
/**
* ， 2002 2 3
*
* @param sdate
* @param num
* @return
*/
public static String getWeek(String sdate, String num) {
//
Date dd = DateUtil.strToDate(sdate);
Calendar c = Calendar.getInstance();
c.setTime(dd);
if (num.equals("1")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
else if (num.equals("2")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
else if (num.equals("3")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);
else if (num.equals("4")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY);
else if (num.equals("5")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY);
else if (num.equals("6")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
else if (num.equals("0")) //
c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());
}
/**
* ，
*
* @param sdate
* @return
*/
public static String getWeek(String sdate) {
//
Date date = DateUtil.strToDate(sdate);
Calendar c = Calendar.getInstance();
c.setTime(date);
// int hour=c.get(Calendar.DAY_OF_WEEK);
// hour ， 1~7
// 1= 7= ，
return new SimpleDateFormat("EEEE").format(c.getTime());
}
public static String getWeekStr(String sdate){
String str = "";
str = DateUtil.getWeek(sdate);
if("1".equals(str)){
str = " ";
}else if("2".equals(str)){
str = " ";
}else if("3".equals(str)){
str = " ";
}else if("4".equals(str)){
str = " ";
}else if("5".equals(str)){
str = " ";
}else if("6".equals(str)){
str = " ";
}else if("7".equals(str)){
str = " ";
}
return str;
}
/**
*
*
* @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;
//
java.util.Date date = null;
java.util.Date mydate = null;
try {
date = formatter.parse(date1);
mydate = formatter.parse(date2);
} catch (Exception e) {
}
long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
return day;
}
/**
* ，
*
*
* @param sdate
* @return
*/
public static String getNowMonth(String sdate) {
//
sdate = sdate.substring(0, 8) + "01";
// 1
Date date = DateUtil.strToDate(sdate);
Calendar c = Calendar.getInstance();
c.setTime(date);
int u = c.get(Calendar.DAY_OF_WEEK);
String newday = DateUtil.getNextDay(sdate, (1 - u) + "");
return newday;
}
/**
* yyyymmddhhmmss+k
*
* @param k
* ，
*/
public static String getNo(int k) {
return getUserDate("yyyyMMddhhmmss") + getRandom(k);
}
/**
*
*
* @param i
* @return
*/
public static String getRandom(int i) {
Random jjj = new Random();
// int suiJiShu = jjj.nextInt(9);
if (i == 0)
return "";
String jj = "";
for (int k = 0; k < i; k++) {
jj = jj + jjj.nextInt(9);
}
return jj;
}
/**
*
* @param args
*/
public static boolean RightDate(String date) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
;
if (date == null)
return false;
if (date.length() > 10) {
sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
} else {
sdf = new SimpleDateFormat("yyyy-MM-dd");
}
try {
sdf.parse(date);
} catch (ParseException pe) {
return false;
}
return true;
}
/***************************************************************************
* //nd=1 //yf=1 //rq=1 //format 1
* 2 - // 3 / 4 // 5 .
**************************************************************************/
public static String getStringDateMonth(String sdate, String nd, String yf, String rq, String format) {
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
String s_nd = dateString.substring(0, 4); //
String s_yf = dateString.substring(5, 7); //
String s_rq = dateString.substring(8, 10); //
String sreturn = "";
//roc.util.MyChar mc = new roc.util.MyChar();
//if (sdate == null || sdate.equals("") || !mc.Isdate(sdate)) { //
if (sdate == null || sdate.equals("")){
if (nd.equals("1")) {
sreturn = s_nd;
//
if (format.equals("1"))
sreturn = sreturn + " ";
else if (format.equals("2"))
sreturn = sreturn + "-";
else if (format.equals("3"))
sreturn = sreturn + "/";
else if (format.equals("5"))
sreturn = sreturn + ".";
}
//
if (yf.equals("1")) {
sreturn = sreturn + s_yf;
if (format.equals("1"))
sreturn = sreturn + " ";
else if (format.equals("2"))
sreturn = sreturn + "-";
else if (format.equals("3"))
sreturn = sreturn + "/";
else if (format.equals("5"))
sreturn = sreturn + ".";
}
//
if (rq.equals("1")) {
sreturn = sreturn + s_rq;
if (format.equals("1"))
sreturn = sreturn + " ";
}
} else {
// ， ，
sdate = getOKDate(sdate);
s_nd = sdate.substring(0, 4); //
s_yf = sdate.substring(5, 7); //
s_rq = sdate.substring(8, 10); //
if (nd.equals("1")) {
sreturn = s_nd;
//
if (format.equals("1"))
sreturn = sreturn + " ";
else if (format.equals("2"))
sreturn = sreturn + "-";
else if (format.equals("3"))
sreturn = sreturn + "/";
else if (format.equals("5"))
sreturn = sreturn + ".";
}
//
if (yf.equals("1")) {
sreturn = sreturn + s_yf;
if (format.equals("1"))
sreturn = sreturn + " ";
else if (format.equals("2"))
sreturn = sreturn + "-";
else if (format.equals("3"))
sreturn = sreturn + "/";
else if (format.equals("5"))
sreturn = sreturn + ".";
}
//
if (rq.equals("1")) {
sreturn = sreturn + s_rq;
if (format.equals("1"))
sreturn = sreturn + " ";
}
}
return sreturn;
}
public static String getNextMonthDay(String sdate, int m) {
sdate = getOKDate(sdate);
int year = Integer.parseInt(sdate.substring(0, 4));
int month = Integer.parseInt(sdate.substring(5, 7));
month = month + m;
if (month < 0) {
month = month + 12;
year = year - 1;
} else if (month > 12) {
month = month - 12;
year = year + 1;
}
String smonth = "";
if (month < 10)
smonth = "0" + month;
else
smonth = "" + month;
return year + "-" + smonth + "-10";
}
/**
*
* ：
*
* @author Tony
* @version 2015-3-31 09:29:31
*/
public static String getOKDate(String sdate) {
if (sdate == null || sdate.equals(""))
return getStringDateShort();
// if (!VeStr.Isdate(sdate)) {
// sdate = getStringDateShort();
// }
// // “/” “-”
// sdate = VeStr.Replace(sdate, "/", "-");
// 8 ，
if (sdate.length() == 8)
sdate = sdate.substring(0, 4) + "-" + sdate.substring(4, 6) + "-" + sdate.substring(6, 8);
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(sdate, pos);
String dateString = formatter.format(strtodate);
return dateString;
}
/**
*
* @param cl
* @return
*/
private static String getBeforeDay(Calendar cl){
// roll
//cl.roll(Calendar.DATE, -1);
// set
// int day = cl.get(Calendar.DATE);
cl.add(Calendar.DATE, -1);
return formatter.format(cl.getTime());
}
/**
*
* @param cl
* @return
*/
private static String getAfterDay(Calendar cl){
// roll
//cl.roll(Calendar.DATE, 1);
// set
//int day = cl.get(Calendar.DATE);
cl.add(Calendar.DATE, 1);
return formatter.format(cl.getTime());
}
private static String getDateAMPM(){
GregorianCalendar ca = new GregorianCalendar();
// “0” “1”
int i=ca.get(GregorianCalendar.AM_PM);
return i==0?"AM":"PM";
}
private static int compareToDate(String date1,String date2){
return date1.compareTo(date2);
}
private static int compareToDateString(String date1,String date2){
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
int i=0;
try {
long ldate1=formatter.parse(date1).getTime();
long ldate2=formatter.parse(date2).getTime();
if(ldate1>ldate2){
i=1;
}else if(ldate1==ldate2){
i=0;
}else{
i=-1;
}
} catch (ParseException e) {
e.printStackTrace();
}
return i;
}
public static String[] getFiveDate(){
String[] dates=new String[2];
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
String five=" 05:00:00";
if(getDateAMPM().equals("AM")&&compareToDateString(getStringDate(),getStringDateShort()+five)==-1){
dates[0]=getBeforeDay(calendar)+five;
dates[1]=getStringDateShort()+five;
}else{
dates[0]=getStringDateShort()+five;
dates[1]=getAfterDay(calendar)+five;
}
return dates;
}
public static String getFiveDate2(){
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
String five=" 05:00:00";
String reStr="";
if(getDateAMPM().equals("AM")&&compareToDateString(getStringDate(),getStringDateShort()+five)==-1){
reStr=getBeforeDay(calendar);
}else{
reStr=getStringDateShort();
}
return reStr;
}
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