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@@ -0,0 +1,487 @@
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+package com.usoftchina.saas.utils;
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+
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+import java.text.ParseException;
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+import java.text.SimpleDateFormat;
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+import java.util.*;
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+
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+/**
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+ * @author: guq
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+ * @create: 2018-10-18 19:17
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+ **/
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+public class DateUtils {
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+
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+ static final SimpleDateFormat ym = new SimpleDateFormat("yyyyMM");
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+ static final SimpleDateFormat YM = new SimpleDateFormat("yyyy-MM");
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+ static final SimpleDateFormat YMD = new SimpleDateFormat("yyyy-MM-dd");
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+ static final SimpleDateFormat YMD_HMS = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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+
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+ static final String YMD_STR = "yyyy-MM-dd";
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+ static final String ORACLE_YMD_HMS_STR = "yyyy-MM-dd HH24:mi:ss";
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+ static final String ORACLE_YMD_STR = "yyyy-MM-dd";
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+ static final String YMD_HMS_STR = "yyyy-MM-dd HH:mm:ss";
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+
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+ public static String format(Date date, String f) {
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+ if (date == null) {
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+ date = new Date();
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+ }
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+ if (f == null) {
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+ return YMD.format(date);
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+ }
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+ SimpleDateFormat sdf = new SimpleDateFormat(f);
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+ return sdf.format(date);
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+ }
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+
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+ public static Date parse(String date, String f) {
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+ if (date == null) {
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+ return new Date();
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+ }
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+ if (f == null) {
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+ try {
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+ return date.contains(" ") ? YMD_HMS.parse(date) : YMD.parse(date);
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+ } catch (ParseException e) {
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+ return new Date();
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+ }
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+ }
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+ SimpleDateFormat sdf = new SimpleDateFormat(f);
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+ try {
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+ return sdf.parse(date);
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+ } catch (ParseException e) {
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+ return new Date();
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+ }
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+ }
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+
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+ /**
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+ * 获取日期年份
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getYear(String date) throws ParseException {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(YMD.parse(date));
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+ return calendar.get(Calendar.YEAR);
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+ }
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+
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+ /**
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+ * 获取日期年份
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getYear(Date date) throws ParseException {
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+ date = date == null ? parse(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(date);
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+ return calendar.get(Calendar.YEAR);
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+ }
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+
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+ /**
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+ * 获取日期月份
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getMonth(String date) throws ParseException {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(YMD.parse(date));
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+ return (calendar.get(Calendar.MONTH) + 1);
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+ }
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+
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+ /**
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+ * 获取日期月份
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getMonth(Date date) throws ParseException {
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+ date = date == null ? parse(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(date);
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+ return (calendar.get(Calendar.MONTH) + 1);
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+ }
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+
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+ /**
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+ * 获取日期号
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getDay(String date) throws ParseException {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(YMD.parse(date));
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+ return calendar.get(Calendar.DAY_OF_MONTH);
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+ }
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+
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+ /**
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+ * 获取日期号
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static int getDay(Date date) throws ParseException {
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+ date = date == null ? parse(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(date);
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+ return calendar.get(Calendar.DAY_OF_MONTH);
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+ }
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+
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+ /**
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+ * 获取日期前一年日期
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static String getLastYearDay(String date) throws ParseException {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ try {
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+ calendar.setTime(YMD.parse(date));
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+ } catch (ParseException e) {
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+ calendar.setTime(new Date());
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+ }
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+ calendar.set(Calendar.YEAR, calendar.get(Calendar.YEAR) - 1);
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+ return YMD.format(calendar.getTime());
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+
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+ }
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+
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+ /**
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+ * 获取月份起始日期
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static String getMinMonthDate(String date) {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ try {
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+ calendar.setTime(YMD.parse(date));
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+ } catch (ParseException e) {
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+ calendar.setTime(new Date());
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+ }
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+ calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
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+ return YMD.format(calendar.getTime());
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+ }
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+
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+ /**
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+ * 获取月份起始日期
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static String getMinMonthDate(Date date) {
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+ date = date == null ? parse(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(date);
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+ calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
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+ return YMD.format(calendar.getTime());
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+ }
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+
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+ /**
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+ * 获取月份最后日期
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static String getMaxMonthDate(String date) {
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+ date = date == null ? format(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ try {
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+ calendar.setTime(YMD.parse(date));
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+ } catch (ParseException e) {
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+ calendar.setTime(new Date());
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+ }
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+ calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
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+ return YMD.format(calendar.getTime());
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+ }
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+
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+ /**
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+ * 获取月份最后日期
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+ *
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+ * @param date
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+ * @return
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+ * @throws ParseException
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+ */
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+ public static String getMaxMonthDate(Date date) {
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+ date = date == null ? parse(null, null) : date;
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(date);
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+ calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
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+ return YMD.format(calendar.getTime());
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+ }
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+
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+ /**
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+ * 当前时间
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+ *
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+ * @return <h3>String</h3>
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+ */
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+ public static String getCurrentDate() {
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+ return format(new Date(), null);
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+ }
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+
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+ /**
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+ * 截取指定日期的年月
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+ *
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+ * @param date
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+ * @return
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+ */
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+ public static Integer getYearmonth(Date date) {
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+ if (date == null) {
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+ date = new Date();
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+ }
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+ return Integer.parseInt(ym.format(date));
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+ }
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+
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+ /**
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+ * 截取指定日期的年月
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+ *
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+ * @param date
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+ * @return
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+ */
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+ public static Integer getYearmonth(String date) {
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+ return Integer.parseInt(ym.format(parse(date, null)));
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+ }
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+
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+ /**
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+ * 获取当前年月
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+ *
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+ * @return
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+ */
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+ public static Integer getYearmonth() {
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+ return Integer.parseInt(ym.format(new Date()));
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+ }
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+
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+ public static int compare(String date1, String date2) {
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+ try {
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+ Date dt1 = YMD.parse(date1);
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+ Date dt2 = YMD.parse(date2);
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+ if (dt1.getTime() > dt2.getTime()) {
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+ return 1;
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+ } else if (dt1.getTime() < dt2.getTime()) {
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+ return -1;
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+ } else {
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+ return 0;
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+ }
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+ } catch (Exception exception) {
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+ exception.printStackTrace();
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+ }
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+ return 0;
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+ }
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+
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+ /**
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+ * 获取特定日期是星期几
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+ *
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+ * @return
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+ */
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+ public static String getWeekDay(String DateStr) {
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+ SimpleDateFormat formatYMD = new SimpleDateFormat("yyyy-MM-dd");// formatYMD表示的是yyyy-MM-dd格式
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+ SimpleDateFormat formatD = new SimpleDateFormat("E");// "E"表示"day in week"
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+ Date d = null;
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+ String weekDay = "";
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+ try {
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+ d = formatYMD.parse(DateStr);// 将String 转换为符合格式的日期
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+ weekDay = formatD.format(d);
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ // System.out.println("日期:"+DateStr+" ： "+weekDay);
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+ return weekDay;
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+ }
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+
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+ public static int getWeekDay1(String DateStr) {// 返回日期对应数字
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+ SimpleDateFormat formatYMD = new SimpleDateFormat("yyyy-MM-dd");// formatYMD表示的是yyyy-MM-dd格式
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+ Date d = null;
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+ int weekDay = 0;
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+ try {
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+ d = formatYMD.parse(DateStr);// 将String 转换为符合格式的日期
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+ Calendar calendar = Calendar.getInstance();
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+ calendar.setTime(d);
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+ weekDay = calendar.get(Calendar.DAY_OF_WEEK) - 1;
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ return weekDay;
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+ }
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+
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+ /**
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+ * 获取特定时间段内有哪几日
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+ *
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+ * @return
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+ */
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+ public static List<Object> findDates(String start_time, String end_time) throws ParseException {
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+ SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
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+ Date date1 = df.parse(start_time);
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+ Date date2 = df.parse(end_time);
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+ int s = (int) ((date2.getTime() - date1.getTime()) / (24 * 60 * 60 * 1000));
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+ List<Object> objects = new ArrayList<Object>();
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+ String value = "";
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+ if (s + 1 > 0) {
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+ for (int i = 0; i <= s; i++) {
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+ long todayDate = date1.getTime() + (long) i * 24 * 60 * 60 * 1000;
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+ Date tmDate = new Date(todayDate);
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+ value = new SimpleDateFormat("yyyy-MM-dd").format(tmDate);
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+ objects.add(value);
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+ }
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+ }
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+ return objects;
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+ }
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+
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+ /**
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+ * 获取特定时间段内有多少天
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+ *
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+ * @return
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+ */
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+ public static int countDates(String start_time, String end_time) throws ParseException {
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+ SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
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+ Date date1 = df.parse(start_time);
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+ Date date2 = df.parse(end_time);
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+ int s = (int) ((date2.getTime() - date1.getTime()) / (24 * 60 * 60 * 1000));
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+ return s;
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+ }
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+
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+ /**
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+ * 日期转化成oracle格式to_date('2012-12-12', 'yyyy-MM-dd')
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+ *
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+ * @param format
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+ * format type,for example: 'yyyy-MM-dd', 'yyyy-MM-dd HH:mm:ss'
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+ * @param date
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+ * date{type=java.util.Date}
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+ */
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+ public static String parseDateToOracleString(String format, Date date) {
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+ if (format == null) {
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+ format = YMD_STR;
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+ }
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+ SimpleDateFormat sdf = new SimpleDateFormat(format);
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+ if (date == null) {
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+ date = new Date();
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+ }
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+ if (YMD_HMS_STR.toUpperCase().equals(format.toUpperCase())) {
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+ format = ORACLE_YMD_HMS_STR;
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+ } else {
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+ format = ORACLE_YMD_STR;
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+ }
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+ return "to_date('" + sdf.format(date) + "','" + format + "')";
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+ }
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+
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+
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+ /**
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+ * 借贷合同月份处理
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+ */
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+ public static int getMonthSpace(Date date1, Date date2) throws ParseException {
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+ int iMonth = 0;
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+ int flag = 0;
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+ try {
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+ Calendar objCalendarDate1 = Calendar.getInstance();
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+ objCalendarDate1.setTime(date1);
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+
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+ Calendar objCalendarDate2 = Calendar.getInstance();
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+ objCalendarDate2.setTime(date2);
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+
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+ if (objCalendarDate2.equals(objCalendarDate1))
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+ return 0;
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+ if (objCalendarDate1.after(objCalendarDate2)) {
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+ Calendar temp = objCalendarDate1;
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+ objCalendarDate1 = objCalendarDate2;
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+ objCalendarDate2 = temp;
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+ }
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+ if (objCalendarDate2.get(Calendar.DAY_OF_MONTH) > objCalendarDate1.get(Calendar.DAY_OF_MONTH))
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+ flag = 1;
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+
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+ if (objCalendarDate2.get(Calendar.YEAR) > objCalendarDate1.get(Calendar.YEAR)) {
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+ iMonth = ((objCalendarDate2.get(Calendar.YEAR) - objCalendarDate1.get(Calendar.YEAR)) * 12
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+ + objCalendarDate2.get(Calendar.MONTH) + flag)
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+ - objCalendarDate1.get(Calendar.MONTH);
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+ } else {
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+ iMonth = objCalendarDate2.get(Calendar.MONTH) + flag - objCalendarDate1.get(Calendar.MONTH);
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+ }
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+
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ return iMonth;
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+ }
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+
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+ /**
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+ * 月份往前或往后n天
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+ */
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+ public static Date overDate(Date date, int num) {
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+ date = date == null ? new Date() : date;
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+ Calendar calendar = new GregorianCalendar();
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+ calendar.setTime(date);
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+ calendar.add(Calendar.DATE, num);
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+ date = calendar.getTime();
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+ return date;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 月份加减
|
|
|
+ *
|
|
|
+ * @param date
|
|
|
+ * @param increase
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public static Integer addMonth(Date date, int increase) {
|
|
|
+ if (date == null)
|
|
|
+ date = new Date();
|
|
|
+ Calendar calendar = new GregorianCalendar();
|
|
|
+ calendar.setTime(date);
|
|
|
+ calendar.add(Calendar.MONTH, increase);
|
|
|
+ return getYearmonth(calendar.getTime());
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 月份加减
|
|
|
+ *
|
|
|
+ * @param month
|
|
|
+ * @param increase
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public static Integer addMonth(Integer month, int increase) {
|
|
|
+ Calendar calendar = new GregorianCalendar();
|
|
|
+ try {
|
|
|
+ calendar.setTime(ym.parse(String.valueOf(month)));
|
|
|
+ } catch (ParseException e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ }
|
|
|
+ calendar.add(Calendar.MONTH, increase);
|
|
|
+ return getYearmonth(calendar.getTime());
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 时间添加小时数
|
|
|
+ * */
|
|
|
+ public static Date addHours(Date date, float hours) {
|
|
|
+ Calendar ca = Calendar.getInstance();
|
|
|
+ ca.setTime(date);
|
|
|
+ ca.add(Calendar.MINUTE, (int) (hours * 60));
|
|
|
+ return ca.getTime();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 判断日期是否合法
|
|
|
+ */
|
|
|
+ public static boolean isValidDate(String dateString, String f) {
|
|
|
+ SimpleDateFormat sdf = new SimpleDateFormat(f);
|
|
|
+ sdf.setLenient(false);
|
|
|
+ try {
|
|
|
+ sdf.parse(dateString);
|
|
|
+ } catch (ParseException e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
guq