经过一个星期的使用总结的时间工具类
package com.alibaba.util.Timeday;
import java.sql.Timestamp;
import java.util.*;
/**
* @author: setsun
* @create: 2018- 06-20
* @description:
* @program: spoperate
**/
public class DataUtils {
//获取当天的开始时间
public static DategetDayBegin() {
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();
}
//获取当天的结束时间
public static DategetDayEnd() {
Calendar cal =new GregorianCalendar();
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
return cal.getTime();
}
//获取昨天的开始时间
public static DategetBeginDayOfYesterday() {
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
public static DategetEndDayOfYesterDay() {
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
public static DategetBeginDayOfTomorrow() {
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
public static DategetEndDayOfTomorrow() {
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
public static DategetBeginDayOfWeek() {
Date date =new Date();
if (date ==null) {
return null;
}
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
public static DategetEndDayOfWeek(){
Calendar cal = Calendar.getInstance();
cal.setTime(getBeginDayOfWeek());
cal.add(Calendar.DAY_OF_WEEK, 6);
Date weekEndSta = cal.getTime();
return getDayEndTime(weekEndSta);
}
//获取上周的开始时间
public static DategetBeginDayOfLastWeek() {
Date date =new Date();
if (date ==null) {
return null;
}
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 -7);
return getDayStartTime(cal.getTime());
}
//获取上周的结束时间
public static DategetEndDayOfLastWeek(){
Calendar cal = Calendar.getInstance();
cal.setTime(getBeginDayOfLastWeek());
cal.add(Calendar.DAY_OF_WEEK, 6);
Date weekEndSta = cal.getTime();
return getDayEndTime(weekEndSta);
}
//获取本月的开始时间
public static DategetBeginDayOfMonth() {
Calendar calendar = Calendar.getInstance();
calendar.set(getNowYear(), getNowMonth() -1, 1);
return getDayStartTime(calendar.getTime());
}
//获取本月的结束时间
public static DategetEndDayOfMonth() {
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());
}
//获取上月的开始时间
public static DategetBeginDayOfLastMonth() {
Calendar calendar = Calendar.getInstance();
calendar.set(getNowYear(), getNowMonth() -2, 1);
return getDayStartTime(calendar.getTime());
}
//获取上月的结束时间
public static DategetEndDayOfLastMonth() {
Calendar calendar = Calendar.getInstance();
calendar.set(getNowYear(), getNowMonth() -2, 1);
int day = calendar.getActualMaximum(5);
calendar.set(getNowYear(), getNowMonth() -2, day);
return getDayEndTime(calendar.getTime());
}
//获取本年的开始时间
public static DategetBeginDayOfYear() {
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
public static DategetEndDayOfYear() {
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
public static DategetDayStartTime(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
public static DategetDayEndTime(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());
}
//获取今年是哪一年
public static IntegergetNowYear() {
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
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
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
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
public static Datemax(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
public static Datemin(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
public static DategetFirstSeasonDate(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
public static DategetNextDay(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
public static DategetFrontDay(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（间隔天数的集合）
@SuppressWarnings({"rawtypes", "unchecked" })
public static ListgetTimeList(int beginYear, int beginMonth, int endYear,
int endMonth, int k) {
List list =new ArrayList();
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）
public static ListgetTimeList(int beginYear, int beginMonth, int k) {
List list =new ArrayList();
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;
}
}
