java获取当天，前天，明天，本周，本月，本年的开始日期时间和结
2018-04-26 本文已影响0人
zhihaoZzz
import java.sql.Timestamp;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import com.ibm.icu.text.SimpleDateFormat;
/**
* @project cb-console-service
* @author suruozhong
* @description (日期工具类)
* @date 2017年9月5日
*/
public class DateUtils {
public static final String[] zodiacArr = { "猴", "鸡", "狗", "猪", "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊" };
public static final String[] constellationArr = { "水瓶座", "双鱼座", "白羊座", "金牛座", "双子座", "巨蟹座", "狮子座", "处女座", "天秤座", "天蝎座", "射手座", "魔羯座" };
public static final int[] constellationEdgeDay = { 20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22 };
/**
* 根据日期获取生肖
* @return
*/
public static String getZodica(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return zodiacArr[cal.get(Calendar.YEAR) % 12];
}
/**
* 根据日期获取星座
* @return
*/
public static String getConstellation(Date date) {
if (date == null) {
return "";
}
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int month = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
if (day < constellationEdgeDay[month]) {
month = month - 1;
}
if (month >= 0) {
return constellationArr[month];
}
// default to return 魔羯
return constellationArr[11];
}
/**
* 获取当天的开始时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static java.util.Date getDayBegin() {
/*
Calendar cal = new GregorianCalendar();
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();*/
Date date = new Date();
return getDayStartTime(date);
}
/**
* 获取当天的结束时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static java.util.Date getDayEnd() {
/*Calendar cal = new GregorianCalendar();
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
return cal.getTime();*/
Date date = new Date();
return getDayEndTime(date);
}
/**
* 获取昨天的开始时间
* @return 默认格式 Wed May 31 14:47:18 CST 2017
*/
public static Date getBeginDayOfYesterday() {
Calendar cal = new GregorianCalendar();
cal.setTime(getDayBegin());
cal.add(Calendar.DAY_OF_MONTH, -1);
return cal.getTime();
}
/**
* 获取昨天的结束时间
* @return 默认格式 Wed May 31 14:47:18 CST 2017
*/
public static Date getEndDayOfYesterDay() {
Calendar cal = new GregorianCalendar();
cal.setTime(getDayEnd());
cal.add(Calendar.DAY_OF_MONTH, -1);
return cal.getTime();
}
/**
* 获取明天的开始时间
* @return 默认格式 Wed May 31 14:47:18 CST 2017
*/
public static Date getBeginDayOfTomorrow() {
Calendar cal = new GregorianCalendar();
cal.setTime(getDayBegin());
cal.add(Calendar.DAY_OF_MONTH, 1);
return cal.getTime();
}
/**
* 获取明天的结束时间
* @return 默认格式 Wed May 31 14:47:18 CST 2017
*/
public static Date getEndDayOfTomorrow() {
Calendar cal = new GregorianCalendar();
cal.setTime(getDayEnd());
cal.add(Calendar.DAY_OF_MONTH, 1);
return cal.getTime();
}
/**
* 获取本周的开始时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Date getBeginDayOfWeek() {
Date date = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int dayofweek = cal.get(Calendar.DAY_OF_WEEK);
if (dayofweek == 1) {
dayofweek += 7;
}
cal.add(Calendar.DATE, 2 - dayofweek);
return getDayStartTime(cal.getTime());
}
/**
* 获取本周的结束时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Date getEndDayOfWeek(){
Calendar cal = Calendar.getInstance();
cal.setTime(getBeginDayOfWeek());
cal.add(Calendar.DAY_OF_WEEK, 6);
Date weekEndSta = cal.getTime();
return getDayEndTime(weekEndSta);
}
/**
* 获取本月的开始时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Date getBeginDayOfMonth() {
Calendar calendar = Calendar.getInstance();
calendar.set(getNowYear(), getNowMonth() - 1, 1);
return getDayStartTime(calendar.getTime());
}
/**
* 获取本月的结束时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Date getEndDayOfMonth() {
Calendar calendar = Calendar.getInstance();
calendar.set(getNowYear(), getNowMonth() - 1, 1);
int day = calendar.getActualMaximum(5);
calendar.set(getNowYear(), getNowMonth() - 1, day);
return getDayEndTime(calendar.getTime());
}
/**
* 获取本年的开始时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static java.util.Date getBeginDayOfYear() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, getNowYear());
// cal.set
cal.set(Calendar.MONTH, Calendar.JANUARY);
cal.set(Calendar.DATE, 1);
return getDayStartTime(cal.getTime());
}
/**
* 获取本年的结束时间
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static java.util.Date getEndDayOfYear() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, getNowYear());
cal.set(Calendar.MONTH, Calendar.DECEMBER);
cal.set(Calendar.DATE, 31);
return getDayEndTime(cal.getTime());
}
/**
* 获取某个日期的开始时间
* @param d
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Timestamp getDayStartTime(Date d) {
Calendar calendar = Calendar.getInstance();
if(null != d) calendar.setTime(d);
calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
calendar.set(Calendar.MILLISECOND, 0);
return new Timestamp(calendar.getTimeInMillis());
}
/**
* 获取某个日期的结束时间
* @param d
* @return yyyy-MM-dd HH:mm:ss 格式
*/
public static Timestamp getDayEndTime(Date d) {
Calendar calendar = Calendar.getInstance();
if(null != d) calendar.setTime(d);
calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59);
calendar.set(Calendar.MILLISECOND, 999);
return new Timestamp(calendar.getTimeInMillis());
}
/**
* 获取某年某月的第一天
* @param year
* @param month
* @return
*/
public static Date getStartMonthDate(int year, int month) {
Calendar calendar = Calendar.getInstance();
calendar.set(year, month - 1, 1);
return calendar.getTime();
}
/**
* 获取某年某月的最后一天
* @param year
* @param month
* @return
*/
public static Date getEndMonthDate(int year, int month) {
Calendar calendar = Calendar.getInstance();
calendar.set(year, month - 1, 1);
int day = calendar.getActualMaximum(5);
calendar.set(year, month - 1, day);
return calendar.getTime();
}
/**
* 获取今年是哪一年
* @return
*/
public static Integer getNowYear() {
Date date = new Date();
GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
gc.setTime(date);
return Integer.valueOf(gc.get(1));
}
/**
* 获取本月是哪一月
* @return
*/
public static int getNowMonth() {
Date date = new Date();
GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
gc.setTime(date);
return gc.get(2) + 1;
}
/**
* 两个日期相减得到的天数
* @param beginDate
* @param endDate
* @return
*/
public static int getDiffDays(Date beginDate, Date endDate) {
if (beginDate == null || endDate == null) {
throw new IllegalArgumentException("getDiffDays param is null!");
}
long diff = (endDate.getTime() - beginDate.getTime())
/ (1000 * 60 * 60 * 24);
int days = new Long(diff).intValue();
return days;
}
/**
* 两个日期相减得到的毫秒数
* @param beginDate
* @param endDate
* @return
*/
public static long dateDiff(Date beginDate, Date endDate) {
long date1ms = beginDate.getTime();
long date2ms = endDate.getTime();
return date2ms - date1ms;
}
/**
* 获取两个日期中的最大日期
* @param beginDate
* @param endDate
* @return
*/
public static Date max(Date beginDate, Date endDate) {
if (beginDate == null) {
return endDate;
}
if (endDate == null) {
return beginDate;
}
if (beginDate.after(endDate)) {
return beginDate;
}
return endDate;
}
/**
* 获取两个日期中的最小日期
* @param beginDate
* @param endDate
* @return
*/
public static Date min(Date beginDate, Date endDate) {
if (beginDate == null) {
return endDate;
}
if (endDate == null) {
return beginDate;
}
if (beginDate.after(endDate)) {
return endDate;
}
return beginDate;
}
/**
* 返回某月该季度的第一个月
* @param date
* @return
*/
public static Date getFirstSeasonDate(Date date) {
final int[] SEASON = { 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4 };
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int sean = SEASON[cal.get(Calendar.MONTH)];
cal.set(Calendar.MONTH, sean * 3 - 3);
return cal.getTime();
}
/**
* 返回某个日期下几天的日期
* @param date
* @param i
* @return
*/
public static Date getNextDay(Date date, int i) {
Calendar cal = new GregorianCalendar();
cal.setTime(date);
cal.set(Calendar.DATE, cal.get(Calendar.DATE) + i);
return cal.getTime();
}
/**
* 返回某个日期前几天的日期
* @param date
* @param i
* @return
*/
public static Date getFrontDay(Date date, int i) {
Calendar cal = new GregorianCalendar();
cal.setTime(date);
cal.set(Calendar.DATE, cal.get(Calendar.DATE) - i);
return cal.getTime();
}
/**
* 获取某年某月到某年某月按天的切片日期集合（间隔天数的日期集合）
* @param beginYear
* @param beginMonth
* @param endYear
* @param endMonth
* @param k
* @return
*/
public static List<List<Date>> getTimeList(int beginYear, int beginMonth, int endYear,
int endMonth, int k) {
List<List<Date>> list = new ArrayList<List<Date>>();
if (beginYear == endYear) {
for (int j = beginMonth; j <= endMonth; j++) {
list.add(getTimeList(beginYear, j, k));
}
} else {
{
for (int j = beginMonth; j < 12; j++) {
list.add(getTimeList(beginYear, j, k));
}
for (int i = beginYear + 1; i < endYear; i++) {
for (int j = 0; j < 12; j++) {
list.add(getTimeList(i, j, k));
}
}
for (int j = 0; j <= endMonth; j++) {
list.add(getTimeList(endYear, j, k));
}
}
}
return list;
}
/**
* 获取某年某月按天切片日期集合（某个月间隔多少天的日期集合）
* @param beginYear
* @param beginMonth
* @param k
* @return
*/
public static List<Date> getTimeList(int beginYear, int beginMonth, int k) {
List<Date> list = new ArrayList<Date>();
Calendar begincal = new GregorianCalendar(beginYear, beginMonth, 1);
int max = begincal.getActualMaximum(Calendar.DATE);
for (int i = 1; i < max; i = i + k) {
list.add(begincal.getTime());
begincal.add(Calendar.DATE, k);
}
begincal = new GregorianCalendar(beginYear, beginMonth, max);
list.add(begincal.getTime());
return list;
}
/**
* 格式化日期
* yyyy-MM-dd HH:mm:ss
* @Description:
* @param @param date
* @param @return
*
*/
private static Date format(Date date) {
SimpleDateFormat sd = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
date = sd.parse(sd.format(date));
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
public static String getCurrentDateTime(){
SimpleDateFormat sf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return sf.format(Calendar.getInstance().getTimeInMillis());
}
public static String getCurrentDate(){
SimpleDateFormat sf=new SimpleDateFormat("yyyy-MM-dd");
return sf.format(Calendar.getInstance().getTimeInMillis());
}
public static String getLongTimeStr(){
SimpleDateFormat sf = new SimpleDateFormat("yyyyMMddHHmmss");
return sf.format(new Date());
}
public static Integer getCurrentYear(){
return Calendar.getInstance().get(Calendar.YEAR);
}
public static Integer getCurrentMonth(){
return Calendar.getInstance().get(Calendar.MONTH)+1;
}
public static Date englishToDate(String dateStr){
SimpleDateFormat sdf = new SimpleDateFormat("MMM d, yyyy K:m:s a",Locale.ENGLISH);
try {
return sdf.parse(dateStr);
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
public static void main(String args[]){
Date date = new Date();
System.out.println(getEndMonthDate(2017, 5));
System.out.println(getBeginDayOfWeek());
System.out.println(getBeginDayOfMonth());
System.out.println(getBeginDayOfYear());
}
}
