package com.ruoyi.order.util;
|
|
import java.text.ParseException;
|
import java.text.SimpleDateFormat;
|
import java.util.Calendar;
|
import java.util.Date;
|
import java.util.GregorianCalendar;
|
import java.util.TimeZone;
|
|
/**
|
* <h3>处理时间的工具类</h3>
|
*/
|
public class DateUtil {
|
|
private static TimeZone tz = TimeZone.getTimeZone("GMT+8");
|
|
//private static TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");
|
|
|
/**
|
* 得到系统日期
|
* @return
|
*/
|
public static Date getDate() {
|
TimeZone.setDefault(tz);
|
return new Date();
|
}
|
|
/**
|
* 获取当然凌晨的时间
|
* @return Date
|
*/
|
public static Date getZero() {
|
Calendar calendar = Calendar.getInstance();
|
calendar.setTime(new Date());
|
calendar.set(Calendar.HOUR_OF_DAY, 0);
|
calendar.set(Calendar.MINUTE, 0);
|
calendar.set(Calendar.SECOND, 0);
|
return calendar.getTime();
|
}
|
|
/**
|
* 判断日期是否在from，to之内
|
*"yyyy-MM-dd" 格式
|
* @param time 指定日期
|
* @param from 开始日期
|
* @param to 结束日期
|
* @return true 在之间 false 不在之间
|
*/
|
public static boolean belongCalendar(Date time, Date from, Date to) {
|
Calendar date = Calendar.getInstance();
|
date.setTime(time);
|
|
Calendar after = Calendar.getInstance();
|
after.setTime(from);
|
|
Calendar before = Calendar.getInstance();
|
before.setTime(to);
|
|
if ( (date.after(after) && date.before(before)) || (time.compareTo(from)==0 || time.compareTo(to)==0) ) {
|
return true;
|
} else {
|
return false;
|
}
|
}
|
|
/**
|
* 两个时间之差
|
* @param startTime
|
* @param endTime
|
* @param format
|
* @return
|
* @throws ParseException
|
*/
|
public static String dateDiff(String startTime, String endTime,
|
String format) throws ParseException {
|
// 按照传入的格式生成一个simpledateformate对象
|
SimpleDateFormat sd = new SimpleDateFormat(format);
|
long nd = 1000 * 24 * 60 * 60;// 一天的毫秒数
|
long nh = 1000 * 60 * 60;// 一小时的毫秒数
|
long nm = 1000 * 60;// 一分钟的毫秒数
|
long ns = 1000;// 一秒钟的毫秒数
|
long diff;
|
long day = 0;
|
long hour = 0;
|
long min = 0;
|
long sec = 0;
|
//long time=0;
|
String strTime="";
|
// 获得两个时间的毫秒时间差异
|
diff = sd.parse(endTime).getTime() - sd.parse(startTime).getTime();
|
day = diff / nd;// 计算差多少天
|
hour = diff % nd / nh + day * 24;// 计算差多少小时
|
min = diff % nd % nh / nm + day * 24 * 60;// 计算差多少分钟
|
sec = diff % nd % nh % nm / ns;// 计算差多少秒
|
// 输出结果
|
/*System.out.println("时间相差：" + day + "天" + (hour - day * 24) + "小时"
|
+ (min - day * 24 * 60) + "分钟" + sec + "秒。");
|
System.out.println("hour=" + hour + ",min=" + min);*/
|
if(day==1){
|
strTime="昨天";
|
}
|
else if(day>1){
|
//strTime=day+"天前";
|
strTime=startTime.substring(0, 10);
|
}
|
else if(hour>=1 && hour<24){
|
strTime=hour+"小时前";
|
}
|
else{
|
if(min==0){strTime=sec+"秒钟前";}else{
|
strTime=min+"分钟前";
|
}
|
|
}
|
// if (str.equalsIgnoreCase("h")) {
|
// return hour;
|
// } else {
|
// return min;
|
// }
|
|
// if (str.equalsIgnoreCase("h")) {
|
// return hour;
|
// } else {
|
// return min;
|
// }
|
return strTime;
|
}
|
|
/**
|
* 得到系统Calendar日期
|
* @return
|
*/
|
public static Calendar getCalendar() {
|
TimeZone.setDefault(tz);
|
Calendar cal = Calendar.getInstance();
|
return cal;
|
}
|
|
/**
|
* 获取当前时间
|
* @return
|
*/
|
public static long getMillisecond() {
|
long millisecond = 0;
|
TimeZone.setDefault(tz);
|
Calendar cal = Calendar.getInstance();
|
millisecond = cal.getTimeInMillis();
|
return millisecond;
|
}
|
|
/**
|
* 获取本月1号的时间戳
|
* @return
|
*/
|
public static long getMillisecond_MONTH() {
|
long millisecond = 0;
|
TimeZone.setDefault(tz);
|
Calendar cal = Calendar.getInstance();
|
cal.set(Calendar.DAY_OF_MONTH, 1);
|
millisecond = cal.getTimeInMillis();
|
return millisecond;
|
}
|
|
/**
|
* 获取上个月1号的时间戳
|
* @return
|
*/
|
public static long getMillisecond_FRONTMONTH() {
|
long millisecond = 0;
|
Calendar cal = getCalendar();
|
cal.set(Calendar.DAY_OF_MONTH, 1);
|
cal.set(Calendar.MONTH, Calendar.MONTH-2);
|
millisecond = cal.getTimeInMillis();
|
return millisecond;
|
}
|
|
/**
|
* 获取当前毫秒数
|
* @return long
|
*/
|
public static long getCurMilli() {
|
long millisecond = 0;
|
Calendar cal = Calendar.getInstance();
|
millisecond = cal.getTimeInMillis();
|
return millisecond;
|
}
|
|
|
/**
|
* 日期转毫秒
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond(Date date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if (!"".equals(date)) {
|
newDate = sdf.format(date);
|
} else {
|
newDate = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 0;
|
try {
|
millisecond = sdf.parse(newDate).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
|
/**
|
* 日期转毫秒（加24小时,yyyy-MM-dd HH:mm:ss）
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_24h(Date date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if (!"".equals(date)) {
|
newDate = sdf.format(date);
|
} else {
|
newDate = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 24*3600*1000;
|
try {
|
millisecond += sdf.parse(newDate).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 日期转毫秒（加N年）
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_year(String date, Integer year){
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if ("".equals(date)) {
|
newDate = sdf.format(DateUtil.getDate());
|
} else {
|
newDate = getDateTime(Long.parseLong(date));
|
}
|
Date dt = null;
|
try {
|
dt = sdf.parse(newDate);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
Calendar rightNow = Calendar.getInstance();
|
rightNow.setTime(dt);
|
rightNow.add(Calendar.YEAR, year);
|
Date dt1 = rightNow.getTime();
|
return dt1.getTime();
|
}
|
|
/**
|
* 日期转毫秒（加N天）
|
* @param date 毫秒字符串
|
* @return
|
*/
|
public static long getMillisecond_day(String date, Integer day){
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if ("".equals(date)) {
|
newDate = sdf.format(DateUtil.getDate());
|
} else {
|
newDate = getDateTime(Long.parseLong(date));
|
}
|
Date dt = null;
|
try {
|
dt = sdf.parse(newDate);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
Calendar rightNow = Calendar.getInstance();
|
rightNow.setTime(dt);
|
rightNow.add(Calendar.DATE, day);
|
Date dt1 = rightNow.getTime();
|
return dt1.getTime();
|
}
|
|
/**
|
* 日期转毫秒（加N月）
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_month(String date, Integer day){
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if ("".equals(date)) {
|
newDate = sdf.format(DateUtil.getDate());
|
} else {
|
newDate = getDateTime(Long.parseLong(date));
|
}
|
Date dt = null;
|
try {
|
dt = sdf.parse(newDate);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
Calendar rightNow = Calendar.getInstance();
|
rightNow.setTime(dt);
|
rightNow.add(Calendar.MONTH, day);
|
Date dt1 = rightNow.getTime();
|
return dt1.getTime();
|
}
|
|
/**
|
* 字符串日期转毫秒
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_str(String date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
if ("".equals(date)) {
|
date = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 0;
|
try {
|
millisecond = sdf.parse(date).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 字符串日期转毫秒
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_strYmd(String date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
if ("".equals(date)) {
|
date = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 0;
|
try {
|
millisecond = sdf.parse(date).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 字符串日期转Date
|
* @param string
|
* @return date
|
* @throws ParseException
|
*/
|
public static Date getStrToDate(String dateString) throws ParseException {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
Date date = sdf.parse(dateString);
|
return date;
|
}
|
|
/**
|
* 字符串日期转Date
|
* @param date
|
* @return
|
*/
|
public static Date getDate_str(String dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
sdf.setTimeZone(tz);
|
if ("".equals(dateStr)) {
|
dateStr = sdf.format(DateUtil.getDate());
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(dateStr);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 字符串日期转Date yyyy-MM-dd HH:mm
|
* @param date
|
* @return
|
*/
|
public static Date getDate_str2(String dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
|
sdf.setTimeZone(tz);
|
if ("".equals(dateStr)) {
|
dateStr = sdf.format(DateUtil.getDate());
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(dateStr);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 字符串日期转Date yyyy-MM-dd HH:mm:ss
|
* @param date
|
* @return
|
*/
|
public static Date getDate_str3(String dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
sdf.setTimeZone(tz);
|
if ("".equals(dateStr)) {
|
dateStr = sdf.format(DateUtil.getDate());
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(dateStr);
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 字符串日期转Date
|
* @param date
|
* @return
|
*/
|
public static Date getDate_strYMd(Long dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
if (dateStr == null) {
|
dateStr = DateUtil.getCurMilli();
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(sdf.format(new Date(dateStr)));
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 毫秒转Date
|
* @param date
|
* @return
|
*/
|
public static Date getDate_strYMdHms(Long dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
if (dateStr == null) {
|
dateStr = DateUtil.getCurMilli();
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(sdf.format(new Date(dateStr)));
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 字符串日期转Date
|
* @param date
|
* @return
|
*/
|
public static Date getDate_strYMdHm(Long dateStr) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
|
if (dateStr == null) {
|
dateStr = DateUtil.getCurMilli();
|
}
|
Date date = null;
|
try {
|
date = sdf.parse(sdf.format(new Date(dateStr)));
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return date;
|
}
|
|
/**
|
* 字符串日期转毫秒
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_strDmy(String date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
|
if ("".equals(date)) {
|
date = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 0;
|
try {
|
millisecond = sdf.parse(date).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 字符串日期转毫秒转毫秒（加24小时）
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_str_24h(String date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
if ("".equals(date)) {
|
date = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 24*3600*1000;
|
try {
|
millisecond += sdf.parse(date).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 字符串日期转毫秒转毫秒（加24小时）
|
* @param date
|
* @return
|
*/
|
public static long getMillisecond_strYmd_24h(String date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
if ("".equals(date)) {
|
date = sdf.format(DateUtil.getDate());
|
}
|
long millisecond = 24*3600*1000;
|
try {
|
millisecond += sdf.parse(date).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return millisecond;
|
}
|
|
/**
|
* 毫秒转日期
|
* @param millisecond
|
* @return
|
*/
|
public static String getDate(long millisecond) {
|
if (millisecond == 0) {
|
millisecond = getCurMilli();
|
}
|
SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd");
|
Calendar calendar = getCalendar();
|
calendar.setTimeInMillis(millisecond);
|
return dateformat.format(calendar.getTime());
|
}
|
/**
|
* 转换为指定格式的时间
|
* @return Date
|
*/
|
public static Date getDate(String date, String pattern) {
|
SimpleDateFormat format = new SimpleDateFormat(pattern);
|
Date d = null;
|
try {
|
d = format.parse(date);
|
} catch (ParseException ex) {
|
return null;
|
}
|
return d;
|
}
|
|
/**
|
* 毫秒转日期
|
* @param millisecond
|
* @return
|
*/
|
public static String getDate_HH(long millisecond) {
|
if (millisecond == 0) {
|
millisecond = getCurMilli();
|
}
|
SimpleDateFormat dateformat = new SimpleDateFormat("HH");
|
Calendar calendar = getCalendar();
|
calendar.setTimeInMillis(millisecond);
|
return dateformat.format(calendar.getTime());
|
}
|
|
/**
|
* 毫秒转日期时间
|
* @param millisecond
|
* @return
|
*/
|
public static String getDateTime(long millisecond) {
|
if (millisecond == 0) {
|
millisecond = getCurMilli();
|
}
|
SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
Calendar calendar = getCalendar();
|
calendar.setTimeInMillis(millisecond);
|
return dateformat.format(calendar.getTime());
|
}
|
|
/**
|
* 毫秒转年月日
|
* @param millisecond
|
* @return
|
*/
|
public static String getDateYMD(long millisecond) {
|
if (millisecond == 0) {
|
millisecond = getCurMilli();
|
}
|
SimpleDateFormat dateformat = new SimpleDateFormat("yyyy年MM月dd日");
|
Calendar calendar = getCalendar();
|
calendar.setTimeInMillis(millisecond);
|
return dateformat.format(calendar.getTime());
|
}
|
|
/**
|
* 两日期相差毫秒
|
* @param startDate
|
* @param endDate
|
* @return
|
*/
|
public static long getMinusMillisecond(Date startDate, Date endDate) {
|
long startMillisecond = getMillisecond(startDate);
|
long endMillisecond = getMillisecond(endDate);
|
long minusMillisecond = endMillisecond-startMillisecond;
|
if (minusMillisecond < 0) {
|
minusMillisecond = 0;
|
}
|
return minusMillisecond;
|
}
|
|
/**
|
* 两日期相差天数
|
* @param startDate
|
* @param endDate
|
* @return
|
*/
|
public static long getMinusDay(Date startDate, Date endDate) {
|
long startMillisecond = getMillisecond(startDate);
|
long endMillisecond = getMillisecond(endDate);
|
long minusMillisecond = endMillisecond-startMillisecond;
|
long day = 0;
|
if (minusMillisecond < 0) {
|
day = 0;
|
} else {
|
day = minusMillisecond/(24*3600*1000);
|
}
|
return day;
|
}
|
|
/**
|
* 前N天毫秒
|
* @param day
|
* @return
|
*/
|
public static long getRetreatDay_millisecond(int day) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
long nowMillisecond = 0;
|
try {
|
nowMillisecond = sdf.parse(sdf.format(DateUtil.getDate())).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
nowMillisecond += 24*3600*1000;
|
long retreatMillisecond = 24*3600*1000*day;
|
return nowMillisecond - retreatMillisecond;
|
}
|
|
|
/**
|
* 前N天时间
|
* @param day
|
* @return
|
*/
|
public static String getRetreatDay_millisecond1(int day) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
long nowMillisecond = 0;
|
try {
|
nowMillisecond = sdf.parse(sdf.format(DateUtil.getDate())).getTime();
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
nowMillisecond += 24*3600*1000;
|
long retreatMillisecond = 24*3600*1000*day;
|
long s=nowMillisecond - retreatMillisecond;
|
Date date = new Date(s);
|
String res = sdf.format(date);
|
return res;
|
}
|
|
/**
|
* 日期转秒
|
* @param date
|
* @return
|
*/
|
public static long getDecond(Date date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
String newDate = "";
|
if (!"".equals(date)) {
|
newDate = sdf.format(date);
|
} else {
|
newDate = sdf.format(DateUtil.getDate());
|
}
|
long second = 0;
|
try {
|
second = sdf.parse(newDate).getTime()/1000;
|
} catch (ParseException e) {
|
e.printStackTrace();
|
}
|
return second;
|
}
|
|
/**
|
* 日期转String
|
* @param date
|
* @return
|
* @throws ParseException
|
*/
|
public static String getDateToString(Date date) throws ParseException {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
String newDate = sdf.format(date);
|
long millisecond = sdf.parse(newDate).getTime();
|
Calendar calendar = getCalendar();
|
calendar.setTimeInMillis(millisecond);
|
return sdf.format(calendar.getTime());
|
}
|
|
/**
|
* 毫秒转星期XX
|
* @param millisecond
|
* @return
|
*/
|
public static int getDate_week(Long millisecond) {
|
if (millisecond == null) {
|
millisecond = getCurMilli();
|
}
|
Calendar cal = getCalendar();
|
cal.setTimeInMillis(millisecond);
|
return cal.get(Calendar.DAY_OF_WEEK)-1;
|
|
}
|
|
/**
|
* 获取当前系统时间已yyyy-MM-dd HH:mm:ss格式化的字符串
|
*/
|
public static String nowStr(){
|
|
SimpleDateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
|
return dateFormat.format(getDate());
|
}
|
|
/**
|
*
|
* 获取之前几天日期
|
* @param pattern yyyy-MM-dd（默认）
|
* @param few 之前几天
|
*/
|
public static String beforeFewDayStr(String pattern, Integer few) {
|
|
if(pattern == null || "".equals(pattern)){
|
pattern = "yyyy-MM-dd";
|
}
|
Calendar c = getCalendar();
|
c.add(Calendar.DATE,-few);
|
return new SimpleDateFormat(pattern).format(c.getTime());
|
}
|
|
/**
|
* 获取今天日期
|
* @param pattern yyyy-MM-dd（默认）
|
*/
|
public static String todayStr(String pattern) {
|
|
if(pattern == null || "".equals(pattern)){
|
pattern = "yyyy-MM-dd";
|
}
|
return new SimpleDateFormat(pattern).format(getDate());
|
}
|
|
/**
|
* 获取当前系统时间戳字符串
|
*/
|
public static String nowDateLongStr(){
|
|
return getDate().getTime()+"";
|
}
|
|
/**
|
* 获取当前系统时间
|
* @return
|
*/
|
public static Date now(){
|
|
return getDate();
|
}
|
|
|
public static void main(String[] args) throws ParseException {
|
//打印测试日期包含
|
Date time1 = getDate_str("2017-3-11");
|
Date time2 = getDate_str("2017-3-15");
|
Date time3 = getDate_str("2017-3-17");
|
Date time4 = getDate_str("2017-3-12");
|
Date time5 = getDate_str("2017-3-16");
|
Date from = getDate_str("2017-3-12");
|
Date to= getDate_str("2017-3-16");
|
System.out.println(belongCalendar(time1,from,to));
|
System.out.println(belongCalendar(time2,from,to));
|
System.out.println(belongCalendar(time3,from,to));
|
System.out.println(belongCalendar(time4,from,to));
|
System.out.println(belongCalendar(time5,from,to));
|
System.out.println(nowStr());
|
|
|
}
|
|
/**
|
* 把日期往后增加一天. 正数往后推,负数往前移动
|
* @param day
|
* @return
|
*/
|
public static String getString(int day) {
|
Date date=new Date();//取时间
|
Calendar calendar = new GregorianCalendar();
|
calendar.setTime(date);
|
calendar.add(calendar.DATE,day);//把日期往后增加一天.整数往后推,负数往前移动
|
date=calendar.getTime(); //这个时间就是日期往后推一天的结果
|
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
|
String dateString = formatter.format(date);
|
return dateString;
|
}
|
|
|
|
|
/**
|
* 根据当前日期获得所在周的日期区间（周一和周日日期）
|
*
|
* @return
|
* @author zhaoxuepu
|
* @throws ParseException
|
*/
|
public static String getTimeInterval(Date date) {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
Calendar cal = Calendar.getInstance();
|
cal.setTime(date);
|
// 判断要计算的日期是否是周日，如果是则减一天计算周六的，否则会出问题，计算到下一周去了
|
int dayWeek = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天
|
if (1 == dayWeek) {
|
cal.add(Calendar.DAY_OF_MONTH, -1);
|
}
|
// System.out.println("要计算日期为:" + sdf.format(cal.getTime())); // 输出要计算日期
|
// 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一
|
cal.setFirstDayOfWeek(Calendar.MONDAY);
|
// 获得当前日期是一个星期的第几天
|
int day = cal.get(Calendar.DAY_OF_WEEK);
|
// 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值
|
cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);
|
String imptimeBegin = sdf.format(cal.getTime());
|
// System.out.println("所在周星期一的日期：" + imptimeBegin);
|
cal.add(Calendar.DATE, 6);
|
String imptimeEnd = sdf.format(cal.getTime());
|
// System.out.println("所在周星期日的日期：" + imptimeEnd);
|
return imptimeBegin + "," + imptimeEnd;
|
}
|
|
|
/**
|
* 根据当前日期获得上周的日期区间（上周周一和周日日期）
|
*
|
* @return
|
* @author zhaoxuepu
|
*/
|
public static String getLastTimeInterval() {
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
|
Calendar calendar1 = Calendar.getInstance();
|
Calendar calendar2 = Calendar.getInstance();
|
int dayOfWeek = calendar1.get(Calendar.DAY_OF_WEEK) - 1;
|
int offset1 = 1 - dayOfWeek;
|
int offset2 = 7 - dayOfWeek;
|
calendar1.add(Calendar.DATE, offset1 - 7);
|
calendar2.add(Calendar.DATE, offset2 - 7);
|
// System.out.println(sdf.format(calendar1.getTime()));// last Monday
|
String lastBeginDate = sdf.format(calendar1.getTime());
|
// System.out.println(sdf.format(calendar2.getTime()));// last Sunday
|
String lastEndDate = sdf.format(calendar2.getTime());
|
return lastBeginDate + "," + lastEndDate;
|
}
|
|
|
|
|
|
|
public static String DateYUE(){
|
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
|
Calendar c = Calendar.getInstance();
|
c.add(Calendar.MONTH, 0);
|
c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天
|
String first = format.format(c.getTime());
|
|
//获取当前月最后一天
|
Calendar ca = Calendar.getInstance();
|
ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
|
String last = format.format(ca.getTime());
|
return first+","+last;
|
}
|
|
|
|
|
|
|
public static String getBeforeFirstMonthdate(){
|
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
|
Calendar calendar=Calendar.getInstance();
|
Calendar calendar1=Calendar.getInstance();
|
calendar.add(Calendar.MONTH, -1);
|
calendar.set(Calendar.DAY_OF_MONTH, 1);
|
|
int month=calendar1.get(Calendar.MONTH);
|
calendar1.set(Calendar.MONTH, month-1);
|
calendar1.set(Calendar.DAY_OF_MONTH, calendar1.getActualMaximum(Calendar.DAY_OF_MONTH));
|
String str=format.format(calendar.getTime());
|
String str1=format.format(calendar1.getTime());
|
|
return str+","+str1;
|
}
|
|
|
/**
|
* 获取某年第一天和最后一天日期
|
* @param year 年份
|
* @return Date
|
*/
|
|
public static String getYearFirst(int year){
|
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
|
Calendar calendar = Calendar.getInstance();
|
calendar.clear();
|
calendar.set(Calendar.YEAR, year);
|
|
|
Calendar calendar1 = Calendar.getInstance();
|
calendar1.clear();
|
calendar1.set(Calendar.YEAR, year);
|
calendar1.roll(Calendar.DAY_OF_YEAR, -1);
|
|
|
String str=format.format(calendar.getTime());
|
String str1=format.format(calendar1.getTime());
|
|
|
return str+","+str1;
|
}
|
|
|
|
}
|
