在某段时间内,随机产生一个时间,包括时分秒

package com.bjpowernode.hibernate;import java.text.SimpleDateFormat;import java.util.Date;import junit.framework.TestCase;public class RondomDateTest extends TestCase{public void testRondomDate() {Date date = randomDate("2009-07-01","2009-09-01");System.out.println(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(date));}/** * 获取随机日期 * @param beginDate 起始日期，格式为：yyyy-MM-dd * @param endDate 结束日期，格式为：yyyy-MM-dd * @return */private static Date randomDate(String beginDate,String endDate){try {SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");Date start = format.parse(beginDate);Date end = format.parse(endDate);if(start.getTime() >= end.getTime()){return null;}long date = random(start.getTime(),end.getTime());return new Date(date);} catch (Exception e) {e.printStackTrace();}return null;}private static long random(long begin,long end){long rtn = begin + (long)(Math.random() * (end - begin));if(rtn == begin || rtn == end){return random(begin,end);}return rtn;}}