大家好，又见面了，我是全栈君，今天给大家准备了Idea注册码。
1.代码
package com.zhaochao.utils;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DataUill {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("当天24点时间：" + getTimesnight().toLocaleString());
System.out.println("当前时间：" + new Date().toLocaleString());
System.out.println("当天0点时间：" + getTimesmorning().toLocaleString());
System.out.println("昨天0点时间：" + getYesterdaymorning().toLocaleString());
System.out.println("近7天时间：" + getWeekFromNow().toLocaleString());
System.out.println("本周周一0点时间：" + getTimesWeekmorning().toLocaleString());
System.out.println("本周周日24点时间：" + getTimesWeeknight().toLocaleString());
System.out.println("本月初0点时间：" + getTimesMonthmorning().toLocaleString());
System.out.println("本月未24点时间：" + getTimesMonthnight().toLocaleString());
System.out.println("上月初0点时间：" + getLastMonthStartMorning().toLocaleString());
System.out.println("本季度開始点时间：" + getCurrentQuarterStartTime().toLocaleString());
System.out.println("本季度结束点时间：" + getCurrentQuarterEndTime().toLocaleString());
System.out.println("本年開始点时间：" + getCurrentYearStartTime().toLocaleString());
System.out.println("本年结束点时间：" + getCurrentYearEndTime().toLocaleString());
System.out.println("上年開始点时间：" + getLastYearStartTime().toLocaleString());
}
// 获得当天0点时间
public static Date getTimesmorning() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
// 获得昨天0点时间
public static Date getYesterdaymorning() {
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(getTimesmorning().getTime()-3600*24*1000);
return cal.getTime();
}
// 获得当天近7天时间
public static Date getWeekFromNow() {
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis( getTimesmorning().getTime()-3600*24*1000*7);
return cal.getTime();
}
// 获得当天24点时间
public static Date getTimesnight() {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 24);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
// 获得本周一0点时间
public static Date getTimesWeekmorning() {
Calendar cal = Calendar.getInstance();
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
return cal.getTime();
}
// 获得本周日24点时间
public static Date getTimesWeeknight() {
Calendar cal = Calendar.getInstance();
cal.setTime(getTimesWeekmorning());
cal.add(Calendar.DAY_OF_WEEK, 7);
return cal.getTime();
}
// 获得本月第一天0点时间
public static Date getTimesMonthmorning() {
Calendar cal = Calendar.getInstance();
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.DAY_OF_MONTH));
return cal.getTime();
}
// 获得本月最后一天24点时间
public static Date getTimesMonthnight() {
Calendar cal = Calendar.getInstance();
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));
cal.set(Calendar.HOUR_OF_DAY, 24);
return cal.getTime();
}
public static Date getLastMonthStartMorning() {
Calendar cal = Calendar.getInstance();
cal.setTime(getTimesMonthmorning());
cal.add(Calendar.MONTH, -1);
return cal.getTime();
}
public static Date getCurrentQuarterStartTime() {
Calendar c = Calendar.getInstance();
int currentMonth = c.get(Calendar.MONTH) + 1;
SimpleDateFormat longSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
SimpleDateFormat shortSdf = new SimpleDateFormat("yyyy-MM-dd");
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 cal = Calendar.getInstance();
cal.setTime(getCurrentQuarterStartTime());
cal.add(Calendar.MONTH, 3);
return cal.getTime();
}
public static Date getCurrentYearStartTime() {
Calendar cal = Calendar.getInstance();
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.YEAR));
return cal.getTime();
}
public static Date getCurrentYearEndTime() {
Calendar cal = Calendar.getInstance();
cal.setTime(getCurrentYearStartTime());
cal.add(Calendar.YEAR, 1);
return cal.getTime();
}
public static Date getLastYearStartTime() {
Calendar cal = Calendar.getInstance();
cal.setTime(getCurrentYearStartTime());
cal.add(Calendar.YEAR, -1);
return cal.getTime();
}
}
2.结果
当天24点时间：2015-1-18 0:00:00 当前时间：2015-1-17 10:50:57 当天0点时间：2015-1-17 0:00:00 昨天0点时间：2015-1-16 0:00:00 近7天时间：2015-1-10 0:00:00 本周周一0点时间：2015-1-12 0:00:00 本周周日24点时间：2015-1-19 0:00:00 本月初0点时间：2015-1-1 0:00:00 本月未24点时间：2015-2-1 0:00:00 上月初0点时间：2014-12-1 0:00:00 本季度開始点时间：2015-1-1 0:00:00 本季度结束点时间：2015-4-1 0:00:00 本年開始点时间：2015-1-1 0:00:00 本年结束点时间：2016-1-1 0:00:00 上年開始点时间：2014-1-1 0:00:00
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