在进行频次、周期业务处理的时候，需要查询日、周、旬、月、季度、年等周期时间，为此而写的一个时间工具类。
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
/**
* 日、星期（周）、旬、月、季度、年等时间工具类
*/
public class DateUtil {
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 sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private final static SimpleDateFormat longSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
/**
* 根据要求的格式，格式化时间，返回String
*
* @param format 默认：yyyy-MM-dd HH:mm:ss
* @param time 要格式化的时间
* @return 时间字符串
*/
public static String toStr(String format, Date time) {
SimpleDateFormat df = null;
if (null == format) {
df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
} else {
df = new SimpleDateFormat(format);
}
try {
return df.format(time);
} catch (Exception e) {
return null;
}
}
/**
* 字符串转时间
*
* @param source yyyy-MM-dd HH:mm:ss.SSS 格式的字符串
* @return
*/
public static Date toDate(String source) {
String formatString = "yyyy-MM-dd hh:mm:ss";
if (source == null || "".equals(source.trim())) {
return null;
}
source = source.trim();
if (source.matches("^\\d{4}$")) {
formatString = "yyyy";
} else if (source.matches("^\\d{4}-\\d{1,2}$")) {
formatString = "yyyy-MM";
} else if (source.matches("^\\d{4}-\\d{1,2}-\\d{1,2}$")) {
formatString = "yyyy-MM-dd";
} else if (source.matches("^\\d{4}-\\d{1,2}-\\d{1,2} {1}\\d{1,2}$")) {
formatString = "yyyy-MM-dd hh";
} else if (source.matches("^\\d{4}-\\d{1,2}-\\d{1,2} {1}\\d{1,2}:\\d{1,2}$")) {
formatString = "yyyy-MM-dd hh:mm";
} else if (source.matches("^\\d{4}-\\d{1,2}-\\d{1,2} {1}\\d{1,2}:\\d{1,2}:\\d{1,2}$")) {
formatString = "yyyy-MM-dd hh:mm:ss";
} else if (source.matches("^\\d{4}-\\d{1,2}-\\d{1,2} {1}\\d{1,2}:\\d{1,2}:\\d{1,2}\\.\\d{1,3}$")) {
formatString = "yyyy-MM-dd HH:mm:ss.SSS";
}
try {
SimpleDateFormat sdf = new SimpleDateFormat(formatString);
Date date = sdf.parse(source);
return date;
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
/**
* 获得本小时的开始时间
*
* @return
*/
public static Date getHourStartTime(Date date) {
Date dt = null;
try {
dt = longHourSdf.parse(longHourSdf.format(date));
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获得本小时的结束时间
*
* @return
*/
public static Date getHourEndTime(Date date) {
Date dt = null;
try {
dt = longSdf.parse(longHourSdf.format(date) + ":59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获得本天的开始时间
*
* @return
*/
public static Date getDayStartTime(Date date) {
Date dt = null;
try {
dt = shortSdf.parse(shortSdf.format(date));
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获得本天的结束时间
*
* @return
*/
public static Date getDayEndTime(Date date) {
Date dt = null;
try {
dt = longSdf.parse(shortSdf.format(date) + " 23:59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 当前时间是星期几
*
* @return
*/
public static int getWeekDay(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int week_of_year = c.get(Calendar.DAY_OF_WEEK);
return week_of_year - 1;
}
/**
* 获得本周的第一天，周一
*
* @return
*/
public static Date getWeekStartTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
try {
int weekday = c.get(Calendar.DAY_OF_WEEK) - 2;
c.add(Calendar.DATE, -weekday);
c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00.000"));
} catch (Exception e) {
e.printStackTrace();
}
return c.getTime();
}
/**
* 获得本周的最后一天，周日
*
* @return
*/
public static Date getWeekEndTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
try {
int weekday = c.get(Calendar.DAY_OF_WEEK);
c.add(Calendar.DATE, 8 - weekday);
c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59.999"));
} catch (Exception e) {
e.printStackTrace();
}
return c.getTime();
}
/**
* 获得本月的开始时间
*
* @return
*/
public static Date getMonthStartTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
Date dt = null;
try {
c.set(Calendar.DATE, 1);
dt = shortSdf.parse(shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 本月的结束时间
*
* @return
*/
public static Date getMonthEndTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
Date dt = null;
try {
c.set(Calendar.DATE, 1);
c.add(Calendar.MONTH, 1);
c.add(Calendar.DATE, -1);
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 当前年的开始时间
*
* @return
*/
public static Date getYearStartTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
Date dt = null;
try {
c.set(Calendar.MONTH, 0);
c.set(Calendar.DATE, 1);
dt = shortSdf.parse(shortSdf.format(c.getTime()));
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 当前年的结束时间
*
* @return
*/
public static Date getYearEndTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
Date dt = null;
try {
c.set(Calendar.MONTH, 11);
c.set(Calendar.DATE, 31);
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 当前季度的开始时间
*
* @return
*/
public static Date getQuarterStartTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date dt = 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, 6);
else if (currentMonth >= 10 && currentMonth <= 12)
c.set(Calendar.MONTH, 9);
c.set(Calendar.DATE, 1);
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00.000");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 当前季度的结束时间
*
* @return
*/
public static Date getQuarterEndTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date dt = 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);
}
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获取前/后半年的开始时间
*
* @return
*/
public static Date getHalfYearStartTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date dt = 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);
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00.000");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获取前/后半年的结束时间
*
* @return
*/
public static Date getHalfYearEndTime(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int currentMonth = c.get(Calendar.MONTH) + 1;
Date dt = 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);
}
dt = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59.999");
} catch (Exception e) {
e.printStackTrace();
}
return dt;
}
/**
* 获取月旬 三旬: 上旬1-10日 中旬11-20日 下旬21-31日
*
* @param date
* @return
*/
public static int getTenDay(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
int i = c.get(Calendar.DAY_OF_MONTH);
if (i < 11)
return 1;
else if (i < 21)
return 2;
else
return 3;
}
/**
* 获取所属旬开始时间
*
* @param date
* @return
*/
public static Date getTenDayStartTime(Date date) {
int ten = getTenDay(date);
try {
if (ten == 1) {
return getMonthStartTime(date);
} else if (ten == 2) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-11");
return shortSdf.parse(df.format(date));
} else {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-21");
return shortSdf.parse(df.format(date));
}
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
/**
* 获取所属旬结束时间
*
* @param date
* @return
*/
public static Date getTenDayEndTime(Date date) {
int ten = getTenDay(date);
try {
if (ten == 1) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-10 23:59:59.999");
return longSdf.parse(df.format(date));
} else if (ten == 2) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-20 23:59:59.999");
return longSdf.parse(df.format(date));
} else {
return getMonthEndTime(date);
}
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
/**
* 属于本年第几天
*
* @return
*/
public static int getYearDayIndex(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.setTime(date);
return calendar.get(Calendar.DAY_OF_YEAR);
}
/**
* 属于本年第几周
*
* @return
*/
public static int getYearWeekIndex(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.setTime(date);
return calendar.get(Calendar.WEEK_OF_YEAR);
}
/**
* 属于本年第几月
*
* @return
*/
public static int getYearMonthIndex(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
return calendar.get(Calendar.MONTH) + 1;
}
/**
* 当前属于本年第几个季度
*
* @return
*/
public static int getYeartQuarterIndex(Date date) {
int month = getYearMonthIndex(date);
if (month <= 3)
return 1;
else if (month <= 6)
return 2;
else if (month <= 9)
return 3;
else
return 4;
}
/**
* 获取date所属年的所有天列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List yearDayList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getYearStartTime(date);
Date endtm = getYearEndTime(date);
calendar.setTime(starttm);
while (calendar.getTime().before(endtm)) {
Date st = getDayStartTime(calendar.getTime());
Date et = getDayEndTime(calendar.getTime());
result.add(new Date[]{st, et});
calendar.add(Calendar.DAY_OF_YEAR, 1);
}
return result;
}
/**
* 获取date所属年的所有星期列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List yearWeekList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getYearStartTime(date);
Date endtm = getYearEndTime(date);
calendar.setTime(starttm);
calendar.setFirstDayOfWeek(Calendar.MONDAY);
while (calendar.getTime().before(endtm)) {
Date st = getWeekStartTime(calendar.getTime());
Date et = getWeekEndTime(calendar.getTime());
result.add(new Date[]{st, et});
calendar.add(Calendar.WEEK_OF_YEAR, 1);
}
return result;
}
/**
* 获取date所属年的所有月列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List yearMonthList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getYearStartTime(date);
Date endtm = getYearEndTime(date);
calendar.setTime(starttm);
while (calendar.getTime().before(endtm)) {
Date tm = calendar.getTime();
Date st = getMonthStartTime(tm);
Date et = getMonthEndTime(tm);
result.add(new Date[]{st, et});
calendar.add(Calendar.MONTH, 1);
}
return result;
}
/**
* 获取date所属年的所有季度列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List yearQuarterList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getYearStartTime(date);
Date endtm = getYearEndTime(date);
calendar.setTime(starttm);
while (calendar.getTime().before(endtm)) {
Date st = getQuarterStartTime(calendar.getTime());
Date et = getQuarterEndTime(calendar.getTime());
result.add(new Date[]{st, et});
calendar.add(Calendar.MONTH, 3);
}
return result;
}
/**
* 获取date所属月份的所有旬列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List monthTenDayList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getMonthStartTime(date);
Date endtm = getMonthEndTime(date);
calendar.setTime(starttm);
while (calendar.getTime().before(endtm)) {
Date st = getTenDayStartTime(calendar.getTime());
Date et = getTenDayEndTime(calendar.getTime());
result.add(new Date[]{st, et});
calendar.add(Calendar.DAY_OF_MONTH, 11);
}
return result;
}
/**
* 获取date所属年的所有月旬列表及开始/结束时间 开始时间：date[0]，结束时间：date[1]
*
* @param date
* @return
*/
public static List yearTenDayList(Date date) {
List result = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
Date starttm = getYearStartTime(date);
Date endtm = getYearEndTime(date);
calendar.setTime(starttm);
while (calendar.getTime().before(endtm)) {//
result.addAll(monthTenDayList(calendar.getTime()));
calendar.add(Calendar.MONTH, 1);
}
return result;
}
/**
* 测试
*/
private static void test() {
Date date = new Date();
System.out.println("当前小时开始：" + toStr(null, getHourStartTime(date)));
System.out.println("当前小时结束：" + toStr(null, getHourEndTime(date)));
System.out.println("当前天开始：" + toStr(null, getDayStartTime(date)));
System.out.println("当前天时结束：" + toStr(null, getDayEndTime(date)));
System.out.println("当前天是星期：" + getWeekDay(date));
System.out.println("当前周开始：" + toStr(null, getWeekStartTime(date)));
System.out.println("当前周结束：" + toStr(null, getWeekEndTime(date)));
System.out.println("当前月开始：" + toStr(null, getMonthStartTime(date)));
System.out.println("当前月结束：" + toStr(null, getMonthEndTime(date)));
System.out.println("当前季度开始：" + toStr(null, getQuarterStartTime(date)));
System.out.println("当前季度结束：" + toStr(null, getQuarterEndTime(date)));
System.out.println("当前半年/后半年开始：" + toStr(null, getHalfYearStartTime(date)));
System.out.println("当前半年/后半年结束：" + toStr(null, getHalfYearEndTime(date)));
System.out.println("当前年开始：" + toStr(null, getYearStartTime(date)));
System.out.println("当前年结束：" + toStr(null, getYearEndTime(date)));
System.out.println("当前属于本年第：" + getYearDayIndex(date) + "天");
System.out.println("当前属于本年第：" + getYearWeekIndex(date) + "周");
System.out.println("当前属于本年第：" + getYearMonthIndex(date) + "月");
System.out.println("当前属于本年第：" + getYeartQuarterIndex(date) + "季度");
System.out.println("时间转换(yyyy)： " + toStr(null, toDate("2018")));
System.out.println("时间转换(yyyy-MM)： " + toStr(null, toDate("2018-01")));
System.out.println("时间转换(yyyy-MM-dd)： " + toStr(null, toDate("2018-01-01")));
System.out.println("时间转换(yyyy-MM-dd hh)： " + toStr(null, toDate("2018-01-01 23")));
System.out.println("时间转换(yyyy-MM-dd hh:mm)： " + toStr(null, toDate("2018-01-01 23:59")));
System.out.println("时间转换(yyyy-MM-dd hh:mm:ss)： " + toStr(null, toDate("2018-01-01 23:59:59")));
System.out.println("时间转换(yyyy-MM-dd HH:mm:ss.SSS)： " + toStr(null, toDate("2018-01-01 23:59:59.999")));
}
/**
* 测试：获取当年所有日期列表
*/
private static void testYearDayList() {
List datas = yearDayList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("（一年的日期列表）第" + (i + 1) + "天：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
/**
* 测试：获取当年所有星期列表
*/
private static void testYearWeekList() {
List datas = yearWeekList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("（一年的周列表）第" + (i + 1) + "周：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
/**
* 测试：获取当年所有季度列表
*/
private static void testYearQuarterList() {
List datas = yearQuarterList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("（一年的季度列表）第" + (i + 1) + "季度：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
/**
* 测试：获取当年所有月份列表
*/
private static void testYearMonthList() {
List datas = yearMonthList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("（一年的月列表）第" + (i + 1) + "月：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
/**
* 测试：获取当月所有旬列表
*/
private static void testMonthTenDayList() {
//Date no= DateTimeTools.toDateTime("2018-02-01 15:38:15");
List datas = monthTenDayList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("(一月的旬列表)第" + (i % 3 + 1) + "旬：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
/**
* 测试：获取当年所有旬列表
*/
private static void testyearTenDayList() {
List datas = yearTenDayList(new Date());
for (int i = 0; i < datas.size(); i++) {
Date[] date = datas.get(i);
System.out.println("（一年的旬列表）第" + (i / 3 + 1) + "月" + (i % 3 + 1) + "旬：" + sdf.format(date[0]) + " " + sdf.format(date[1]));
}
}
public static void main(String[] args) {
test();
testYearDayList();
testYearWeekList();
testYearMonthList();
testYearQuarterList();
testyearTenDayList();
testMonthTenDayList();
}
}