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@@ -0,0 +1,160 @@
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+package com.fdkankan.sale.util;
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+
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+import org.apache.commons.lang3.StringUtils;
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+
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+import java.text.SimpleDateFormat;
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+import java.util.ArrayList;
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+import java.util.Calendar;
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+import java.util.Date;
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+import java.util.List;
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+
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+public class Dateutils {
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+
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+ public static int DAY = Calendar.DAY_OF_MONTH;
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+ public static int WEEK = Calendar.WEEK_OF_MONTH;
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+ public static int MONTH = Calendar.MONTH;
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+
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+ /**
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+ * 获取指定时间区间的所有数据（包含日期和月份）
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+ * @param dBegin
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+ * @param dEnd
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+ * @param rule 日历规则 如：Calendar.DAY_OF_MONTH
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+ * @return
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+ */
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+ public static List<Date> findDates(Date dBegin, Date dEnd, int rule) {
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+ List<Date> lDate = new ArrayList<>();
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+ if (dEnd.before(dBegin)){
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+ return lDate;
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+ }
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+ Calendar calBegin = Calendar.getInstance();
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+ // 使用给定的 Date 设置此 Calendar 的时间
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+ calBegin.setTime(dBegin);
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+ Calendar calEnd = Calendar.getInstance();
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+ // 使用给定的 Date 设置此 Calendar 的时间
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+ calEnd.setTime(dEnd);
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+ // 测试此日期是否在指定日期之后
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+ while (dEnd.after(calBegin.getTime())) {
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+ // 根据日历的规则，为给定的日历字段添加或减去指定的时间量
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+ Date time = calBegin.getTime();
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+ if(rule == Calendar.WEEK_OF_MONTH){
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+ time = getMonday(time);
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+ }
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+ lDate.add(time);
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+ calBegin.add(rule, 1);
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+ }
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+ return lDate;
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+ }
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+ public static List<String> findDatesStr(Date dBegin, Date dEnd, int rule) {
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+ List<String> datesStr = new ArrayList<>();
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+ List<Date> dates = findDates(dBegin, dEnd, rule);
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+ for (Date date : dates) {
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+ String day ;
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+ if(rule == MONTH){
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+ day =getMonthDate(date);
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+ }else {
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+ day = getDayDate(date);
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+ }
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+ datesStr.add(day);
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+ }
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+ return datesStr;
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+ }
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+ public static Date getDate(String date) {
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+ try {
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+ return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(date);
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+ }catch (Exception e){
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+ e.printStackTrace();
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+ }
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+ return new Date();
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+ }
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+ public static Date getMonday(Date date) {
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+ Calendar calBegin = Calendar.getInstance();
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+ calBegin.setTime(date);
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+ calBegin.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); //周一
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+ return calBegin.getTime();
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+ }
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+
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+ public static String getDate(Date date) {
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+ return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);
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+ }
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+ public static String getDateN(Date date) {
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+ return new SimpleDateFormat("yyyyMMddHHmmss").format(date);
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+ }
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+
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+ public static String getMonthDate(Date date) {
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+ return new SimpleDateFormat("yyyy-MM").format(date);
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+ }
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+ public static Date getMonthDate(String date) {
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+ try {
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+ return new SimpleDateFormat("yyyy-MM").parse(date);
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+ }catch (Exception e){
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+ e.printStackTrace();
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+ }
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+ return new Date();
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+ }
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+
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+ public static String getDayDate(Date date) {
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+ return new SimpleDateFormat("yyyy-MM-dd").format(date);
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+ }
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+ public static String getDayZeroDate(Date date) {
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+ return new SimpleDateFormat("yyyy-MM-dd").format(date) +" 00:00:00";
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+ }
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+
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+
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+ public static String getHalfYearStr() {
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+ return new SimpleDateFormat("yyyy-MM-dd").format(getHalfYear())+" 00:00:00";
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+ }
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+ public static Date getHalfYear() {
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+ Calendar c = Calendar.getInstance();
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+ c.setTime(new Date());
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+ c.add(Calendar.MONTH, -6);
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+ return c.getTime();
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+ }
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+
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+ public static String getLastMonTh(Date date){
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+ Calendar ca = Calendar.getInstance();
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+ ca.setTime(date);
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+ ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
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+ return new SimpleDateFormat("yyyy-MM-dd").format(ca.getTime()) +" 23:59:59";
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+ }
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+
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+ public static String formatStartTime(String startTime) {
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+ if(StringUtils.isBlank(startTime)){
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+ startTime = Dateutils.getHalfYearStr();
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+ }
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+ if(startTime.length() <12){ //月，开始时间到1号 0点
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+ startTime += " 00:00:00";
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+ }
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+ return startTime;
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+ }
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+ public static String formatEndTime(String endTime) {
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+ if(StringUtils.isBlank(endTime)){
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+ endTime = Dateutils.getDate(new Date());
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+ }
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+ if(endTime.length() <12 ){ //月，开始时间到1号 0点
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+ endTime += " 23:59:59";
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+ }
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+ return endTime;
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+ }
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+
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+
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+ public static String getStartTime(String startTime) {
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+ if(StringUtils.isBlank(startTime)){
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+ return null;
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+ }
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+ if(startTime.length() > 12){
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+ return startTime;
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+ }
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+ return startTime +" 00:00:00";
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+ }
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+
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+ public static String getEndTime(String endTime) {
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+ if(StringUtils.isBlank(endTime)){
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+ return null;
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+ }
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+ if(endTime.length() > 12){
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+ return endTime;
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+ }
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+ return endTime +" 23:59:59";
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+ }
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+
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+}
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lyhzzz