- package com.dada.test;
- import java.text.SimpleDateFormat;
- import java.util.Calendar;
- import java.util.Date;
- public class TestDate {
- 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());
- }
- /**
- * 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");;
- /**
- * 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,即2012-01-01 00:00:00
- *
- * @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,即2012-01-01 23:59:59
- *
- * @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,即2012-01-01 23:59:59
- *
- * @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,即2012-01-01 23:59:59
- *
- * @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,即2012-01-01 00:00:00
- *
- * @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;
- }
- /**
- * 当前月的结束时间,即2012-01-31 23:59:59
- *
- * @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,即2012-01-01 00:00:00
- *
- * @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,即2012-12-31 23:59:59
- *
- * @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;
- }
- /**
- * 当前季度的开始时间,即2012-01-1 00:00:00
- *
- * @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;
- }
- /**
- * 当前季度的结束时间,即2012-03-31 23:59:59
- *
- * @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;
- }
- }
获取当前时间的天、周、月、季度、半年度、年度开始和结束时间
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