import java.text.*;
import java.util.Calendar;
public class VeDate {
/**
* 获取现在时间
*
* @return 返回时间类型 yyyy-MM-dd HH:mm:ss
*/
public static Date getNowDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition( 8 );
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
/**
* 获取现在时间
*
* @return返回短时间格式 yyyy-MM-dd
*/
DateFormat format1 = new SimpleDateFormat( "yyyy-MM-dd" );
DateFormat format 2 = new SimpleDateFormat( "yyyy年MM月dd日 HH时mm分ss秒" );
Date date = null
String str = null
// String转Date
str = "2007-1-18"
try {
date = format1.parse(str);
data = format2.parse(str);
} catch (ParseException e) {
e.printStackTrace();
}
/**
* 获取现在时间
*
* @return返回字符串格式 yyyy-MM-dd HH:mm:ss
*/
public static String getStringDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 获取现在时间
*
* @return 返回短时间字符串格式yyyy-MM-dd
*/
public static String getStringDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new <a href= "http://www.itxm.net" target= "_blank" rel= "noopener" >SimpleDateFormat</a>( "yyyy-MM-dd" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 获取时间 小时:分;秒 HH:mm:ss
*
* @return
*/
public static String getTimeShort() {
SimpleDateFormat formatter = new SimpleDateFormat( "HH:mm:ss" );
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 将长时间格式字符串转换为时间 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;
}
/**
* 将长时间格式时间转换为字符串 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;
}
/**
* 将短时间格式时间转换为字符串 yyyy-MM-dd
*
* @param dateDate
* @param k
* @return
*/
public static String dateToStr(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd" );
String dateString = formatter.format(dateDate);
return dateString;
}
/**
* 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) {
<a href= "http://www.itxm.cn" target= "_blank" rel= "noopener" >SimpleDateFormat </a>formatter = new SimpleDateFormat( "yyyy-MM-dd" );
ParsePosition pos = new ParsePosition( 0 );
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
/**
* 得到现在时间
*
* @return
*/
public static Date getNow() {
Date currentTime = new Date();
return currentTime;
}
/**
* 提取一个月中的最后一天
*
* @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;
}
/**
* 得到现在时间
*
* @return 字符串 yyyyMMdd HHmmss
*/
public static String getStringToday() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyyMMdd HHmmss" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 得到现在小时
*/
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;
}
/**
* 得到现在分钟
*
* @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;
}
/**
* 根据用户传入的时间表示格式,返回当前时间的格式 如果是yyyyMMdd,注意字母y不能大写。
*
* @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;
}
--------------------------------------------------------------------------------------------------------------------------------
做成方法
import java.util.*;
import java.text.*;
import java.util.Calendar;
public class VeDate {
/**
* 获取现在时间
*
* @return 返回时间类型 yyyy-MM-dd HH:mm:ss
*/
public static Date getNowDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition( 8 );
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
/**
* 获取现在时间
*
* @return返回短时间格式 yyyy-MM-dd
*/
public static Date getNowDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd" );
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition( 8 );
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
/**
* 获取现在时间
*
* @return返回字符串格式 yyyy-MM-dd HH:mm:ss
*/
public static String getStringDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new <a href= "http://www.itxm.net" target= "_blank" rel= "noopener" >SimpleDateFormat</a>( "yyyy-MM-dd HH:mm:ss" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 获取现在时间
*
* @return 返回短时间字符串格式yyyy-MM-dd
*/
public static String getStringDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 获取时间 小时:分;秒 HH:mm:ss
*
* @return
*/
public static String getTimeShort() {
SimpleDateFormat formatter = new SimpleDateFormat( "HH:mm:ss" );
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 将长时间格式字符串转换为时间 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;
}
/**
* 将长时间格式时间转换为字符串 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;
}
/**
* 将短时间格式时间转换为字符串 yyyy-MM-dd
*
* @param dateDate
* @param k
* @return
*/
public static String dateToStr(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd" );
String dateString = formatter.format(dateDate);
return dateString;
}
/**
* 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;
}
/**
* 得到现在时间
*
* @return
*/
public static Date getNow() {
Date currentTime = new Date();
return currentTime;
}
/**
* 提取一个月中的最后一天
*
* @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;
}
/**
* 得到现在时间
*
* @return 字符串 yyyyMMdd HHmmss
*/
public static String getStringToday() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat( "yyyyMMdd HHmmss" );
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 得到现在小时
*/
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;
}
/**
* 得到现在分钟
*
* @return
*/
public static String getTime() {
Date currentTime = new Date();
<a href= "http://www.itxm.cn" target= "_blank" rel= "noopener" >SimpleDateFormat </a>formatter = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateString = formatter.format(currentTime);
String min;
min = dateString.substring( 14 , 16 );
return min;
}
/**
* 根据用户传入的时间表示格式,返回当前时间的格式 如果是yyyyMMdd,注意字母y不能大写。
*
* @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;
}
/**
* 二个小时时间间的差值,必须保证二个时间都是"HH:MM"的格式,返回字符型的分钟
*/
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"
}
}
/**
* 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 {
java.util.Date date = myFormatter.parse(sj1);
java.util.Date mydate = myFormatter.parse(sj2);
day = (date.getTime() - mydate.getTime()) / ( 24 * 60 * 60 * 1000 );
} catch (Exception e) {
return ""
}
return day + ""
}
/**
* 时间前推或后推分钟,其中JJ表示分钟.
*/
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;
}
/**
* 得到一个时间延后或前移几天的时间,nowdate为时间,delay为前移或后延的天数
*/
public static String getNextDay(String nowdate, String delay) {
try {
SimpleDateFormat format = new SimpleDateFormat( "yyyy-MM-dd" );
String mdate = ""
Date d = strToDate(nowdate);
long myTime = (d.getTime() / 1000 ) + Integer.parseInt(delay) * 24 * 60 * 60
d.setTime(myTime * 1000 );
mdate = format.format(d);
return mdate;
} catch (Exception e){
return ""
}
}
/**
* 判断是否润年
*
* @param ddate
* @return
*/
public static boolean isLeapYear(String ddate) {
/**
* 详细设计: 1.被400整除是闰年,否则: 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年
* 3.能被4整除同时能被100整除则不是闰年
*/
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
}
/**
* 返回美国时间格式 26 Apr 2006
*
* @param str
* @return
*/
public static String getEDate(String str) {
SimpleDateFormat formatter = new SimpleDateFormat( "yyyy-MM-dd" );
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 );
}
/**
* 获取一个月的最后一天
*
* @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;
}
/**
* 判断二个时间是否在同一个周
*
* @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)) {
// 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周
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
}
/**
* 产生周序列,即得到当前时间所在的年度是第几周
*
* @return
*/
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