解析回执并备份

 package com.tianbo.util.Date;
 
+import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.LocalDateTime;
-import java.time.ZoneId;
+import java.time.*;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
+import java.util.Calendar;
 import java.util.Date;
 
+
+/**
+ *
+ * 日期工具类
+ * @since 1.0
+ * @date 2019-04-21
+ * @author mrz
+ *
+ */
 public final class DateUtil {
+
+    public static String F19 = "yyyy-MM-dd HH:mm:ss";
+
+    public static String F14 = "yyyyMMddHHmmss";
+
+    public static String F10 = "yyyy-MM-dd";
+
+    public static String F8 = "yyyyMMdd";
+
+    public static String[] dataStringFormats = {F8, F10, F14, F19, "yyyy/MM/dd", "yyyy/MM/dd HH:mm", "yyyy/MM/dd HH:mm:ss", "yyyy-MM-dd HH:mm"};
+
     private static Date currentDate = new Date();
     private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+    private static SimpleDateFormat sdf_yyyyMMdd = new SimpleDateFormat("yyyyMMdd");
     private static SimpleDateFormat timesdf = new SimpleDateFormat("yyyyMMddHHmmss");
 
     public static  String getToday(){
         return sdf.format(currentDate);
     }
+
+    public static  String getTodayBy_yyyyMMdd(){
+        return sdf_yyyyMMdd.format(currentDate);
+    }
+
+    public static Date formatByyyyyMMdd(String dateStr){
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
+        LocalDate beginDateTime = LocalDate.parse(dateStr, formatter);
+        Date date = localDateToDate(beginDateTime);;
+        return date;
+    }
+
     public static String getDDTM(){
         return timesdf.format(currentDate);
     }
@@ -34,4 +68,337 @@ public final class DateUtil {
         return Date.from(time.atZone(ZoneId.systemDefault()).toInstant());
     }
 
+    /**
+     * 将字符串转换为long类型的值(不包含-符号)
+     * @param dateString 2016-10-12
+     * @return 20161012
+     */
+    public static long stringToDateLong(String dateString) {
+        String[] dates = dateString.split("-");
+        return Long.valueOf(dates[0] + dates[1] + dates[2]);
+    }
+
+    /**
+     * 将日期转化为默认的格式显示
+     * @param date Date实例
+     * @return 2017-06-06
+     */
+    public static String dateToString(Date date) {
+        return dateToString(date, F10);
+    }
+
+    /**
+     * @param date Date实例
+     * @param format yyyy-MM-dd
+     * @return 2017-06-06
+     */
+    public static String dateToString(Date date, String format) {
+        if (date == null) {
+            return null;
+        }
+        SimpleDateFormat sf = new SimpleDateFormat(format);
+        return sf.format(date);
+    }
+
+    /**
+     * 时间戳转默认字符串日期
+     * @param time 1496739850253
+     * @return 2017-06-06
+     */
+    public static String longToString(long time) {
+        return longToString(time, F10);
+    }
+
+    /**
+     * 时间戳转字符串日期（格式可以自己选择）
+     * @param time 1496739850253
+     * @param format yyyy-MM-dd
+     * @return 2017-06-06
+     */
+    public static String longToString(long time, String format) {
+        SimpleDateFormat sf = new SimpleDateFormat(format);
+        return sf.format(new Date(time));
+    }
+
+    /**
+     * 在指定日期上加上一定天数获得新的日期
+     * @param day 2016-06-06
+     * @param addDay 10
+     * @return 2016-06-16
+     */
+    public static String getNextDay(String day, int addDay) {
+        Calendar calendar = getCalendar(day);
+        calendar.add(Calendar.DAY_OF_MONTH, addDay);
+        return getDateString(calendar);
+    }
+
+    /**
+     * 获取当前时间（包含小时、分、秒）
+     * @return 2016-06-06 10:20:10
+     */
+    public static String getCurrTime() {
+        return dateToString(new Date(), F19);
+    }
+
+    /**
+     * 获取当前日期（不包含小时、分、秒）
+     * @return 2016-06-06
+     */
+    public static String getCurrDate() {
+        return dateToString(new Date(), F10);
+    }
+
+    /**
+     * 获取日期相距天数
+     * @param startDate 2016-06-06
+     * @param endDate 2016-06-10
+     * @return int 4
+     */
+    public static int getCompareDate(String startDate, String endDate) {
+        try {
+            SimpleDateFormat formatter = new SimpleDateFormat(F10);
+            Date date1 = formatter.parse(startDate);
+            Date date2 = formatter.parse(endDate);
+            long l = date2.getTime() - date1.getTime() + 1000;
+            long d = l / (24 * 60 * 60 * 1000);
+            return (int) d;
+        } catch (ParseException e) {
+        }
+        return 0;
+    }
+
+    private static Calendar getCalendar(String day) {
+        Calendar cal = Calendar.getInstance();
+        cal.set(Integer.parseInt(day.substring(0, 4)), Integer.parseInt(day.substring(5, 7)) - 1, Integer.parseInt(day.substring(8, 10)), 0, 0, 0);
+        return cal;
+    }
+
+    /**
+     * 当前时间几小时相差多少时间
+     * @param hour
+     * @return
+     * @since 2017年8月18日
+     */
+    public static Date getAddHourTime(int hour) {
+        Calendar dalendar = Calendar.getInstance();
+        dalendar.add(Calendar.HOUR_OF_DAY, hour);
+        return dalendar.getTime();
+    }
+
+    /**
+     * 将Calendar转换为日期字符串（字符串的格式：2018-04-21）
+     * @param cale
+     * @return
+     */
+    public static String getDateString(Calendar cale) {
+        int year = cale.get(Calendar.YEAR);
+        int month = cale.get(Calendar.MONTH) + 1;
+        int day = cale.get(Calendar.DAY_OF_MONTH);
+        return year + "-" + (month < 10 ? "0" + month : month + "") + "-" + (day < 10 ? "0" + day : day + "");
+    }
+
+    /**
+     * Calendar转为指定格式的日期字符串
+     * @param cale
+     * @param format
+     * @return
+     */
+    public static String getDateString(Calendar cale, String format) {
+        return dateToString(cale.getTime(), format);
+    }
+
+    /**
+     *计算两个日期之间相差的时间
+     * @param sDate
+     * @param eDate
+     * @return
+     * @throws Exception
+     */
+    public static long substract(String sDate, String eDate) {
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        Date d1 = null;
+        try {
+            d1 = sdf.parse(sDate);
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+        Date d2 = null;
+        try {
+            d2 = sdf.parse(eDate);
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+        return (d2.getTime() - d1.getTime() + 1000000) / (3600 * 24 * 1000);
+    }
+
+    /**
+     * 返回当前日期, 格式：yyyy-mm-dd 使用方法： Date.getToday();
+     * @return 2018-04-21
+     */
+    public static String getToday2() {
+        Calendar rightNow = Calendar.getInstance();
+        int year = rightNow.get(Calendar.YEAR);
+        int month = rightNow.get(Calendar.MONTH) + 1;
+        int day = rightNow.get(Calendar.DAY_OF_MONTH);
+        return year + "-" + (month < 10 ? "0" + month : month + "") + "-" + (day < 10 ? "0" + day : day + "");
+    }
+
+    /**
+     * 字符串的日期格式的计算
+     * @param smdate 较大时结果为负数
+     * @param bdate 较大时结果为正数
+     * @return int
+     * @throws ParseException
+     */
+    public static int daysBetween(String smdate, String bdate) throws ParseException {
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(sdf.parse(smdate));
+        long time1 = cal.getTimeInMillis();
+        cal.setTime(sdf.parse(bdate));
+        long time2 = cal.getTimeInMillis();
+        long between_days = (time2 - time1) / (1000 * 3600 * 24);
+        return Integer.parseInt(String.valueOf(between_days));
+    }
+
+    /**
+     * 获取yyyy-MM-dd格式日期的所在星期数
+     * 例如2018-04-21得到的结果是7
+     * @param dateStr
+     * @return
+     */
+    public static int getWeekDay(String dateStr) {
+        int week = -1;
+        SimpleDateFormat ft = new SimpleDateFormat("yyyy-MM-dd");
+        Date date;
+        try {
+            date = ft.parse(dateStr);
+            if (date != null) {
+                Calendar cal = Calendar.getInstance();
+                cal.setTime(date);
+                week = cal.get(Calendar.DAY_OF_WEEK);
+            }
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+        return week;
+    }
+
+    /**
+     *
+     * 将20180421转化为2016-04-21
+     * @param day
+     * @return
+     */
+    public static String intToDay(long day) {
+        String dayStr = String.valueOf(day);
+        return new StringBuilder().append(dayStr.substring(0, 4)).append("-").append(dayStr.substring(4, 6)).append("-").append(dayStr.substring(6, 8)).toString();
+    }
+
+    public static long dayToInt(String day) {
+        return Long.parseLong(day.replaceAll("-", ""));
+    }
+
+
+    /**
+     * 判断某一日期是星期几，星期天为第7天
+     * @param day
+     * @return
+     */
+    public static String getDayOfWeekCh(String day) {
+        int dayInt;
+        Calendar cal = Calendar.getInstance();
+        cal.set(Integer.parseInt(day.substring(0, 4)), Integer.parseInt(day.substring(5, 7)) - 1, Integer.parseInt(day.substring(8, 10)), 0, 0, 0);
+        dayInt = cal.get(Calendar.DAY_OF_WEEK) - 1;
+        if (dayInt == 0) {
+            dayInt = 7;
+        }
+        return dayInt + "";
+    }
+
+    /**
+     * 日期解析
+     * @param source
+     * @param format
+     * @return
+     * @throws ParseException
+     */
+    public static Date parseDate(String source, String format) {
+        SimpleDateFormat sdf = new SimpleDateFormat(format);
+        try {
+            return sdf.parse(source);
+        } catch (ParseException e) {
+            return null;
+        }
+    }
+
+    /**
+     * 获取指定年月份的第一天
+     * @param year
+     * @param month
+     * @return
+     */
+    public static String monthFirstDay(int year, int month) {
+        Calendar cal = Calendar.getInstance();
+        //设置年份
+        cal.set(Calendar.YEAR, year);
+        //设置月份
+        cal.set(Calendar.MONTH, month - 1);
+        //获取某月最小天数
+        int firstDay = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+        //设置日历中月份的最小天数
+        cal.set(Calendar.DAY_OF_MONTH, firstDay);
+        //格式化日期
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        String firstDayOfMonth = sdf.format(cal.getTime());
+        return firstDayOfMonth;
+    }
+
+    /**
+     * 获取指定年月份的最后一天
+     * @param year
+     * @param month
+     * @return
+     */
+    public static String monthLastDay(int year, int month) {
+        Calendar cal = Calendar.getInstance();
+        //设置年份
+        cal.set(Calendar.YEAR, year);
+        //设置月份
+        cal.set(Calendar.MONTH, month - 1);
+        //获取某月最小天数
+        int firstDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
+        //设置日历中月份的最小天数
+        cal.set(Calendar.DAY_OF_MONTH, firstDay);
+        //格式化日期
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        String lastDayOfMonth = sdf.format(cal.getTime());
+        return lastDayOfMonth;
+    }
+
+
+    /**
+     * Date类型转LocalDate类型
+     * @param date
+     * @return
+     */
+    public static LocalDate dateToLocalDate(Date date) {
+        Instant instant = date.toInstant();
+        ZoneId zoneId = ZoneId.systemDefault();
+        LocalDate localPriceDate = instant.atZone(zoneId).toLocalDate();
+        return localPriceDate;
+    }
+
+    /**
+     * LocalDate类型转Date类型
+     * @param localDate
+     * @return Date
+     */
+    public static Date localDateToDate(LocalDate localDate) {
+        ZoneId zoneId = ZoneId.systemDefault();
+        ZonedDateTime zdt = localDate.atStartOfDay(zoneId);
+        Date date = Date.from(zdt.toInstant());
+        return date;
+    }
+
 }

@@ -62,7 +62,25 @@ public final class FileTool {
     public static void writeFileToBak(String content){
         String bakDir = readProperties("bakDirectory");
         StringBuffer stringBuffer = new StringBuffer();
-        stringBuffer.append(bakDir).append("/").append(Helper.getUUID()).append(".txt");
+        stringBuffer.append(bakDir).append("/").append(Helper.getUUID()).append(".xml");
+
+        File file = new File(stringBuffer.toString());
+
+        try{
+            FileUtils.writeStringToFile(file,content,Cherector);
+        }catch (IOException e){
+            e.printStackTrace();
+        }
+
+    }
+
+    public static void writeFileToBak(String content,String bakDirectory){
+        String bakDir = readProperties("bakDirectory");
+        if (bakDirectory!=null && bakDirectory.length()>0){
+            bakDir = bakDirectory;
+        }
+        StringBuffer stringBuffer = new StringBuffer();
+        stringBuffer.append(bakDir).append("/").append(Helper.getUUID()).append(".xml");
 
         File file = new File(stringBuffer.toString());