生成随机时间

package com.hqb360.uic.biz.point.impl;

import com.hqb360.common.lang.DateUtil;

import java.util.Date;

/** 生成随机时间
* Created with IntelliJ IDEA.
* User:
* Date: 14-3-25
* Time: 上午10:59
*/
public class TestDate {

    private static Date randomDate(Date startTime, Date endTime) {
        long randomDistance = random(startTime.getTime(), endTime.getTime());
        return new Date(randomDistance);
    }

    private static long random(long begin, long end) {
        long distance = begin + (long) (Math.random() * (end - begin));
        if (distance == begin || distance == end) {
            return random(begin, end);
        }
        return distance;
    }

    public static void main(String[] args) {
        
         // 当天的开始时间
        Date dateOfStart = DateUtil.getDateOfStart(new Date());
         // 当天的结束时间
        Date dateOfEnd = DateUtil.getDateOfEnd(new Date());

        Date date = randomDate(dateOfStart, dateOfEnd);
        System.out.println("生成的随机时间是：" +date);
    }
}