package com.common.util;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DateUtils {
private StringBuffer buffer = new StringBuffer();
private static String ZERO = "0";
private static DateUtils date;
public static SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
public static SimpleDateFormat format1 = new SimpleDateFormat(
"yyyyMMdd HH:mm:ss");
public static SimpleDateFormat common_format = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
public String getNowString() {
Calendar calendar = getCalendar();
buffer.delete(0, buffer.capacity());
buffer.append(getYear(calendar));
if (getMonth(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getMonth(calendar));
if (getDate(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getDate(calendar));
if (getHour(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getHour(calendar));
if (getMinute(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getMinute(calendar));
if (getSecond(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getSecond(calendar));
return buffer.toString();
}
private static int getDateField(Date date, int field) {
Calendar c = getCalendar();
c.setTime(date);
return c.get(field);
}
public static int getYearsBetweenDate(Date begin, Date end) {
int bYear = getDateField(begin, Calendar.YEAR);
int eYear = getDateField(end, Calendar.YEAR);
return eYear - bYear;
}
public static int getMonthsBetweenDate(Date begin, Date end) {
int bMonth = getDateField(begin, Calendar.MONTH);
int eMonth = getDateField(end, Calendar.MONTH);
return eMonth - bMonth;
}
public static int getWeeksBetweenDate(Date begin, Date end) {
int bWeek = getDateField(begin, Calendar.WEEK_OF_YEAR);
int eWeek = getDateField(end, Calendar.WEEK_OF_YEAR);
return eWeek - bWeek;
}
public static int getDaysBetweenDate(Date begin, Date end) {
return (int) ((end.getTime()-begin.getTime())/(1000 * 60 * 60 * 24));
}
public static void main(String args[]) {
System.out.println(getSpecficMonthStart(Calendar.getInstance().getTime(), 0));
}
/**
* 获取date年后的amount年的第一天的开始时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficYearStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, amount);
cal.set(Calendar.DAY_OF_YEAR, 1);
return getStartDate(cal.getTime());
}
/**
* 获取date年后的amount年的最后一天的终止时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficYearEnd(Date date, int amount) {
Date temp = getStartDate(getSpecficYearStart(date, amount + 1));
Calendar cal = Calendar.getInstance();
cal.setTime(temp);
cal.add(Calendar.DAY_OF_YEAR, -1);
return getFinallyDate(cal.getTime());
}
/**
* 获取date月后的amount月的第一天的开始时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficMonthStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MONTH, amount);
cal.set(Calendar.DAY_OF_MONTH, 1);
return getStartDate(cal.getTime());
}
/**
* 获取当前自然月后的amount月的最后一天的终止时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficMonthEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(getSpecficMonthStart(date, amount + 1));
cal.add(Calendar.DAY_OF_YEAR, -1);
return getFinallyDate(cal.getTime());
}
/**
* 获取date周后的第amount周的开始时间(这里星期一为一周的开始)
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficWeekStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.setFirstDayOfWeek(Calendar.MONDAY); /* 设置一周的第一天为星期一 */
cal.add(Calendar.WEEK_OF_MONTH, amount);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
return getStartDate(cal.getTime());
}
/**
* 获取date周后的第amount周的最后时间(这里星期日为一周的最后一天)
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficWeekEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setFirstDayOfWeek(Calendar.MONDAY); /* 设置一周的第一天为星期一 */
cal.add(Calendar.WEEK_OF_MONTH, amount);
cal.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
return getFinallyDate(cal.getTime());
}
public static Date getSpecficDateStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_YEAR, amount);
return getStartDate(cal.getTime());
}
public static Date getSpecficDateEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_YEAR, amount);
return getFinallyDate(cal.getTime());
}
/**
* 得到指定日期的一天的的最后时刻23:59:59
*
* @param date
* @return
*/
public static Date getFinallyDate(Date date) {
String temp = format.format(date);
temp += " 23:59:59";
try {
return format1.parse(temp);
} catch (ParseException e) {
return null;
}
}
/**
* 得到指定日期的一天的的最后时刻23:59:59
*
* @param date
* @return
*/
public static String getFinallyDateStr(Date date) {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String temp = format.format(date);
temp += " 23:59:59";
try {
return temp;
} catch (Exception e) {
return temp;
}
}
/**
* 得到指定日期的一天的开始时刻00:00:00
*
* @param date
* @return
*/
public static Date getStartDate(Date date) {
String temp = format.format(date);
temp += " 00:00:00";
try {
return format1.parse(temp);
} catch (Exception e) {
return null;
}
}
/**
* 得到指定日期的一天的开始时刻00:00:00
*
* @param date
* @return
*/
public static String getStartDateStr(Date date) {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String temp = format.format(date);
temp += " 00:00:00";
try {
return temp;
} catch (Exception e) {
return temp;
}
}
/**
*
* @param date
* 指定比较日期
* @param compareDate
* @return
*/
public static boolean isInDate(Date date, Date compareDate) {
if (compareDate.after(getStartDate(date))
&& compareDate.before(getFinallyDate(date))) {
return true;
} else {
return false;
}
}
/**
* 获取两个时间的差值秒
* @param d1
* @param d2
* @return
*/
public static Integer getSecondBetweenDate(Date d1,Date d2){
Long second=(d2.getTime()-d1.getTime())/1000;
return second.intValue();
}
private int getYear(Calendar calendar) {
return calendar.get(Calendar.YEAR);
}
private int getMonth(Calendar calendar) {
return calendar.get(Calendar.MONDAY) + 1;
}
private int getDate(Calendar calendar) {
return calendar.get(Calendar.DATE);
}
private int getHour(Calendar calendar) {
return calendar.get(Calendar.HOUR_OF_DAY);
}
private int getMinute(Calendar calendar) {
return calendar.get(Calendar.MINUTE);
}
private int getSecond(Calendar calendar) {
return calendar.get(Calendar.SECOND);
}
private static Calendar getCalendar() {
return Calendar.getInstance();
}
public static DateUtils getDateInstance() {
if (date == null) {
date = new DateUtils();
}
return date;
}
}
package com.jetcms.common.util;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
/**
* @author hzp
*/
public class DateUtils {
private StringBuffer buffer = new StringBuffer();
private static String ZERO = "0";
private static DateUtils date;
public static SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
public static SimpleDateFormat format1 = new SimpleDateFormat(
"yyyyMMdd HH:mm:ss");
public static SimpleDateFormat common_format = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
public String getNowString() {
Calendar calendar = getCalendar();
buffer.delete(0, buffer.capacity());
buffer.append(getYear(calendar));
if (getMonth(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getMonth(calendar));
if (getDate(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getDate(calendar));
if (getHour(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getHour(calendar));
if (getMinute(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getMinute(calendar));
if (getSecond(calendar) < 10) {
buffer.append(ZERO);
}
buffer.append(getSecond(calendar));
return buffer.toString();
}
private static int getDateField(Date date, int field) {
Calendar c = getCalendar();
c.setTime(date);
return c.get(field);
}
public static int getYearsBetweenDate(Date begin, Date end) {
int bYear = getDateField(begin, Calendar.YEAR);
int eYear = getDateField(end, Calendar.YEAR);
return eYear - bYear;
}
public static int getMonthsBetweenDate(Date begin, Date end) {
int bMonth = getDateField(begin, Calendar.MONTH);
int eMonth = getDateField(end, Calendar.MONTH);
return eMonth - bMonth;
}
public static int getWeeksBetweenDate(Date begin, Date end) {
int bWeek = getDateField(begin, Calendar.WEEK_OF_YEAR);
int eWeek = getDateField(end, Calendar.WEEK_OF_YEAR);
return eWeek - bWeek;
}
public static int getDaysBetweenDate(Date begin, Date end) {
return (int) ((end.getTime()-begin.getTime())/(1000 * 60 * 60 * 24));
}
public static void main(String args[]) {
System.out.println(getSpecficMonthStart(Calendar.getInstance().getTime(), 0));
}
/**
* 获取date年后的amount年的第一天的开始时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficYearStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, amount);
cal.set(Calendar.DAY_OF_YEAR, 1);
return getStartDate(cal.getTime());
}
/**
* 获取date年后的amount年的最后一天的终止时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficYearEnd(Date date, int amount) {
Date temp = getStartDate(getSpecficYearStart(date, amount + 1));
Calendar cal = Calendar.getInstance();
cal.setTime(temp);
cal.add(Calendar.DAY_OF_YEAR, -1);
return getFinallyDate(cal.getTime());
}
/**
* 获取date月后的amount月的第一天的开始时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficMonthStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MONTH, amount);
cal.set(Calendar.DAY_OF_MONTH, 1);
return getStartDate(cal.getTime());
}
/**
* 获取当前自然月后的amount月的最后一天的终止时间
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficMonthEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(getSpecficMonthStart(date, amount + 1));
cal.add(Calendar.DAY_OF_YEAR, -1);
return getFinallyDate(cal.getTime());
}
/**
* 获取date周后的第amount周的开始时间(这里星期一为一周的开始)
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficWeekStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.setFirstDayOfWeek(Calendar.MONDAY); /* 设置一周的第一天为星期一 */
cal.add(Calendar.WEEK_OF_MONTH, amount);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
return getStartDate(cal.getTime());
}
/**
* 获取date周后的第amount周的最后时间(这里星期日为一周的最后一天)
*
* @param amount
* 可正、可负
* @return
*/
public static Date getSpecficWeekEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setFirstDayOfWeek(Calendar.MONDAY); /* 设置一周的第一天为星期一 */
cal.add(Calendar.WEEK_OF_MONTH, amount);
cal.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
return getFinallyDate(cal.getTime());
}
public static Date getSpecficDateStart(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_YEAR, amount);
return getStartDate(cal.getTime());
}
public static Date getSpecficDateEnd(Date date, int amount) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_YEAR, amount);
return getFinallyDate(cal.getTime());
}
/**
* 得到指定日期的一天的的最后时刻23:59:59
*
* @param date
* @return
*/
public static Date getFinallyDate(Date date) {
String temp = format.format(date);
temp += " 23:59:59";
try {
return format1.parse(temp);
} catch (ParseException e) {
return null;
}
}
/**
* 得到指定日期的一天的的最后时刻23:59:59
*
* @param date
* @return
*/
public static String getFinallyDateStr(Date date) {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String temp = format.format(date);
temp += " 23:59:59";
try {
return temp;
} catch (Exception e) {
return temp;
}
}
/**
* 得到指定日期的一天的开始时刻00:00:00
*
* @param date
* @return
*/
public static Date getStartDate(Date date) {
String temp = format.format(date);
temp += " 00:00:00";
try {
return format1.parse(temp);
} catch (Exception e) {
return null;
}
}
/**
* 得到指定日期的一天的开始时刻00:00:00
*
* @param date
* @return
*/
public static String getStartDateStr(Date date) {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String temp = format.format(date);
temp += " 00:00:00";
try {
return temp;
} catch (Exception e) {
return temp;
}
}
/**
*
* @param date
* 指定比较日期
* @param compareDate
* @return
*/
public static boolean isInDate(Date date, Date compareDate) {
if (compareDate.after(getStartDate(date))
&& compareDate.before(getFinallyDate(date))) {
return true;
} else {
return false;
}
}
/**
* 获取两个时间的差值秒
* @param d1
* @param d2
* @return
*/
public static Integer getSecondBetweenDate(Date d1,Date d2){
Long second=(d2.getTime()-d1.getTime())/1000;
return second.intValue();
}
private int getYear(Calendar calendar) {
return calendar.get(Calendar.YEAR);
}
private int getMonth(Calendar calendar) {
return calendar.get(Calendar.MONDAY) + 1;
}
private int getDate(Calendar calendar) {
return calendar.get(Calendar.DATE);
}
private int getHour(Calendar calendar) {
return calendar.get(Calendar.HOUR_OF_DAY);
}
private int getMinute(Calendar calendar) {
return calendar.get(Calendar.MINUTE);
}
private int getSecond(Calendar calendar) {
return calendar.get(Calendar.SECOND);
}
private static Calendar getCalendar() {
return Calendar.getInstance();
}
public static DateUtils getDateInstance() {
if (date == null) {
date = new DateUtils();
}
return date;
}
}