wlyy2.0/svr/svr-wlyy-health-bank/src/main/java/com/yihu/jw/util/DateUtils.java

package com.yihu.jw.util;/**
 * Created by nature of king on 2018/5/11.
 */

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

/**
 * @author wangzhinan
 * @create 2018-05-11 14:02
 * @desc date  component
 **/
public  class DateUtils {
    private final static SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    //获取当天的开始时间
      public static String getDayBegin() {
          Calendar cal = new GregorianCalendar();
          cal.set(Calendar.HOUR_OF_DAY, 0);
          cal.set(Calendar.MINUTE, 0);
          cal.set(Calendar.SECOND, 0);
          cal.set(Calendar.MILLISECOND, 0);
          return sdf.format(cal.getTime());
      }
      //获取当天的结束时间
      public static String getDayEnd() {
          Calendar cal = new GregorianCalendar();
          cal.set(Calendar.HOUR_OF_DAY, 23);
          cal.set(Calendar.MINUTE, 59);
          cal.set(Calendar.SECOND, 59);
          return sdf.format(cal.getTime());
      }
    // 获得当前月--开始日期
    public static String getMinMonthDate(String date) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        Calendar calendar = Calendar.getInstance();
        try {
            calendar.setTime(dateFormat.parse(date));
            calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
            return dateFormat.format(calendar.getTime());
        } catch (java.text.ParseException e) {
            e.printStackTrace();
        }
        return null;
    }
    // 获得当前月--结束日期
    public static String getMaxMonthDate(String date){
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        Calendar calendar = Calendar.getInstance();
        try {
            calendar.setTime(dateFormat.parse(date));
            calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
            return dateFormat.format(calendar.getTime());
        }  catch (java.text.ParseException e) {
            e.printStackTrace();
        }
        return null;
    }


    /**
     * 获取两天时间相差的
     *
     * @param endDate
     * @param nowDate
     * @return
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;

        long nh = 1000 * 60 * 60;

        long nm = 1000 * 60;

        long diff = endDate.getTime() - nowDate.getTime();

        long day = diff / nd;//计算相差多少天

        long hour = diff % nd / nh;//计算相差多少小时

        long min = diff % nd % nh / nm;//计算相差多少分钟

        return day+"h "+hour+" h"+min+" m";


    }
}