JAVA获取目标日期对应的年，月，季度，周时间类
好记性不如烂笔头
public class TimeUtil {
/**
* 获取 当前年、半年、季度、月、日、小时 开始结束时间
*/
private final static SimpleDateFormat shortSdf = new SimpleDateFormat("yyyy-MM-dd");
private final static SimpleDateFormat longHourSdf = new SimpleDateFormat("yyyy-MM-dd HH");
private final static SimpleDateFormat longSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private final static SimpleDateFormat _shortSdf = new SimpleDateFormat("yyyyMMdd");
/**
* 获得本周的第一天，周一
*
* @return
*/
public static Date getCurrentWeekDayStartTime() {
Calendar c = Calendar.getInstance();
try {
int weekday = c.get(Calendar.DAY_OF_WEEK) - 2;
c.add(Calendar.DATE, -weekday);
c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00"));
} catch (Exception e) {
e.printStackTrace();
}
return c.getTime();
}
/**
* 获得目标日期的，周日
*
* @return
*/
public Date getCurrentWeekDayEndTime(String targetDate) {
Date from = DateUtils.parseDate(targetDate, DateUtils.FMT_DATE_);
Calendar cal = Calendar.getInstance();
cal.setTime(from);
try {
int weekday = cal.get(Calendar.DAY_OF_WEEK);
cal.add(Calendar.DATE, 8 - weekday);
cal.setTime(_shortSdf.parse(_shortSdf.format(cal.getTime())));
} catch (Exception e) {
e.printStackTrace();
}
return cal.getTime();
}
/**
* 获得本周的最后一天，周日
*
* @return
*/
public static Date getCurrentWeekDayEndTime() {
Calendar c = Calendar.getInstance();
try {
int weekday = c.get(Calendar.DAY_OF_WEEK);
c.add(Calendar.DATE, 8 - weekday);
c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59"));
} catch (Exception e) {
e.printStackTrace();
}
return c.getTime();
}
/**
* 获得本天的开始时间
*
* @return
*/
public static Date getCurrentDayStartTime() {
Date now = new Date();
try {
now = shortSdf.parse(shortSdf.format(now));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获得本天的结束时间
*
* @return
*/
public static Date getCurrentDayEndTime() {
Date now = new Date();
try {
now = longSdf.parse(shortSdf.format(now) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获得本小时的开始时间
*
* @return
*/
public static Date getCurrentHourStartTime() {
Date now = new Date();
try {
now = longHourSdf.parse(longHourSdf.format(now));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获得本小时的结束时间
*
* @return
*/
public static Date getCurrentHourEndTime() {
Date now = new Date();
try {
now = longSdf.parse(longHourSdf.format(now) + ":59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获得本月的开始时间
*
* @return
*/
public static Date getCurrentMonthStartTime() {
Calendar c = Calendar.getInstance();
Date now = null;
try {
c.set(Calendar.DATE, 1);
now = shortSdf.parse(shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 目标日期月份的结束时间
*
* @return
*/
public Date getCurrentMonthEndTime(String targetDate) {
Date from = DateUtils.parseDate(targetDate, DateUtils.FMT_DATE_);
Calendar cal = Calendar.getInstance();
cal.setTime(from);
Date now = null;
try {
cal.set(Calendar.DATE, 1);
cal.add(Calendar.MONTH, 1);
cal.add(Calendar.DATE, -1);
now = _shortSdf.parse(_shortSdf.format(cal.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 本月的结束时间
*
* @return
*/
public static Date getCurrentMonthEndTime() {
Calendar c = Calendar.getInstance();
Date now = null;
try {
c.set(Calendar.DATE, 1);
c.add(Calendar.MONTH, 1);
c.add(Calendar.DATE, -1);
now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 当前年的开始时间
*
* @return
*/
public static Date getCurrentYearStartTime() {
Calendar c = Calendar.getInstance();
Date now = null;
try {
c.set(Calendar.MONTH, 0);
c.set(Calendar.DATE, 1);
now = shortSdf.parse(shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 当前年的结束时间
*
* @return
*/
public static Date getCurrentYearEndTime() {
Calendar c = Calendar.getInstance();
Date now = null;
try {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 目标年的结束时间
*
* @return
*/
public Date getCurrentYearEndTime(String targetDate) {
Date from = DateUtils.parseDate(targetDate, DateUtils.FMT_DATE_);
Calendar c = Calendar.getInstance();
c.setTime(from);
Date now = null;
try {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
now = _shortSdf.parse(_shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 当前季度的开始时间
*
* @return
*/
public static Date getCurrentQuarterStartTime() {
Calendar c = Calendar.getInstance();
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 3)
c.set(Calendar.MONTH, 0);
else if (currentMonth >= 4 && currentMonth <= 6)
c.set(Calendar.MONTH, 3);
else if (currentMonth >= 7 && currentMonth <= 9)
c.set(Calendar.MONTH, 4);
else if (currentMonth >= 10 && currentMonth <= 12)
c.set(Calendar.MONTH, 9);
c.set(Calendar.DATE, 1);
now = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 目标日期季度的结束时间
*
* @return
*/
public Date getCurrentQuarterEndTime(String targetDate) {
Date from = DateUtils.parseDate(targetDate, DateUtils.FMT_DATE_);
Calendar c = Calendar.getInstance();
c.setTime(from);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 3) {
c.set(Calendar.MONTH, 2);
c.set(Calendar.DATE, 31);
} else if (currentMonth >= 4 && currentMonth <= 6) {
c.set(Calendar.MONTH, 5);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 7 && currentMonth <= 9) {
c.set(Calendar.MONTH, 8);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 10 && currentMonth <= 12) {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
}
now = _shortSdf.parse(_shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 当前季度的结束时间
*
* @return
*/
public static Date getCurrentQuarterEndTime() {
Calendar c = Calendar.getInstance();
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 3) {
c.set(Calendar.MONTH, 2);
c.set(Calendar.DATE, 31);
} else if (currentMonth >= 4 && currentMonth <= 6) {
c.set(Calendar.MONTH, 5);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 7 && currentMonth <= 9) {
c.set(Calendar.MONTH, 8);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 10 && currentMonth <= 12) {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
}
now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获取前/后半年的开始时间
*
* @return
*/
public static Date getHalfYearStartTime() {
Calendar c = Calendar.getInstance();
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 6) {
c.set(Calendar.MONTH, 0);
} else if (currentMonth >= 7 && currentMonth <= 12) {
c.set(Calendar.MONTH, 6);
}
c.set(Calendar.DATE, 1);
now = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获取目标日期的 前/后半年的结束时间
*
* @return
*/
public Date getHalfYearEndTime(String targetDate) {
Date from = DateUtils.parseDate(targetDate, DateUtils.FMT_DATE_);
Calendar c = Calendar.getInstance();
c.setTime(from);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 6) {
c.set(Calendar.MONTH, 5);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 7 && currentMonth <= 12) {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
}
now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
/**
* 获取前/后半年的结束时间
*
* @return
*/
public static Date getHalfYearEndTime() {
Calendar c = Calendar.getInstance();
int currentMonth = c.get(Calendar.MONTH) + 1;
Date now = null;
try {
if (currentMonth >= 1 && currentMonth <= 6) {
c.set(Calendar.MONTH, 5);
c.set(Calendar.DATE, 30);
} else if (currentMonth >= 7 && currentMonth <= 12) {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
}
now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
} catch (Exception e) {
e.printStackTrace();
}
return now;
}
public static void main(String[] args) {
System.out.println("当前小时开始：" + getCurrentHourStartTime().toString());
System.out.println("当前小时结束：" + getCurrentHourEndTime().toString());
System.out.println("当前天开始：" + getCurrentDayStartTime().toString());
System.out.println("当前天时结束：" + getCurrentDayEndTime().toString());
System.out.println("当前周开始：" + getCurrentWeekDayStartTime().toString());
System.out.println("当前周结束：" + getCurrentWeekDayEndTime().toString());
System.out.println("当前月开始：" + getCurrentMonthStartTime().toString());
System.out.println("当前月结束：" + getCurrentMonthEndTime().toString());
System.out.println("当前季度开始：" + getCurrentQuarterStartTime().toString());
System.out.println("当前季度结束：" + getCurrentQuarterEndTime().toString());
System.out.println("当前半年/后半年开始：" + getHalfYearStartTime().toString());
System.out.println("当前半年/后半年结束：" + getHalfYearEndTime().toString());
System.out.println("当前年开始：" + getCurrentYearStartTime().toString());
System.out.println("当前年结束：" + getCurrentYearEndTime().toString());
}
}