content: package com.ruoyi.common.utils;
  
  import java.lang.management.ManagementFactory;
  import java.text.ParseException;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import org.apache.commons.lang3.time.DateFormatUtils;
  
  /**
   * 时间工具类
   * 
   * @author ruoyi
   */
  public class DateUtils extends org.apache.commons.lang3.time.DateUtils
  {
      public static String YYYY = "yyyy";
  
      public static String YYYY_MM = "yyyy-MM";
  
      public static String YYYY_MM_DD = "yyyy-MM-dd";
  
      public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";
  
      public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
      
      private static String[] parsePatterns = {
              "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
              "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
              "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};
  
      /**
       * 获取当前Date型日期
       * 
       * @return Date() 当前日期
       */
      public static Date getNowDate()
      {
          return new Date();
      }
  
      /**
       * 获取当前日期, 默认格式为yyyy-MM-dd
       * 
       * @return String
       */
      public static String getDate()
      {
          return dateTimeNow(YYYY_MM_DD);
      }
  
      public static final String getTime()
      {
          return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
      }
  
      public static final String dateTimeNow()
      {
          return dateTimeNow(YYYYMMDDHHMMSS);
      }
  
      public static final String dateTimeNow(final String format)
      {
          return parseDateToStr(format, new Date());
      }
  
      public static final String dateTime(final Date date)
      {
          return parseDateToStr(YYYY_MM_DD, date);
      }
  
      public static final String parseDateToStr(final String format, final Date date)
      {
          return new SimpleDateFormat(format).format(date);
      }
  
      public static final Date dateTime(final String format, final String ts)
      {
          try
          {
              return new SimpleDateFormat(format).parse(ts);
          }
          catch (ParseException e)
          {
              throw new RuntimeException(e);
          }
      }
  
      /**
       * 日期路径 即年/月/日 如2018/08/08
       */
      public static final String datePath()
      {
          Date now = new Date();
          return DateFormatUtils.format(now, "yyyy/MM/dd");
      }
  
      /**
       * 日期路径 即年/月/日 如20180808
       */
      public static final String dateTime()
      {
          Date now = new Date();
          return DateFormatUtils.format(now, "yyyyMMdd");
      }
  
      /**
       * 日期型字符串转化为日期 格式
       */
      public static Date parseDate(Object str)
      {
          if (str == null)
          {
              return null;
          }
          try
          {
              return parseDate(str.toString(), parsePatterns);
          }
          catch (ParseException e)
          {
              return null;
          }
      }
      
      /**
       * 获取服务器启动时间
       */
      public static Date getServerStartDate()
      {
          long time = ManagementFactory.getRuntimeMXBean().getStartTime();
          return new Date(time);
      }
  
      /**
       * 计算相差天数
       */
      public static int differentDaysByMillisecond(Date date1, Date date2)
      {
          return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
      }
  
      /**
       * 计算两个时间差
       */
      public static String getDatePoor(Date endDate, Date nowDate)
      {
          long nd = 1000 * 24 * 60 * 60;
          long nh = 1000 * 60 * 60;
          long nm = 1000 * 60;
          // long ns = 1000;
          // 获得两个时间的毫秒时间差异
          long diff = endDate.getTime() - nowDate.getTime();
          // 计算差多少天
          long day = diff / nd;
          // 计算差多少小时
          long hour = diff % nd / nh;
          // 计算差多少分钟
          long min = diff % nd % nh / nm;
          // 计算差多少秒//输出结果
          // long sec = diff % nd % nh % nm / ns;
          return day + "天" + hour + "小时" + min + "分钟";
      }
  }
  