生成随机日期
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2022-04-05 10:29:06
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转自: http://horizonhyg.iteye.com/blog/402097
/**
* 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){
//生成begin和end直接的日期
long rtn = begin + (long)(Math.random() * (end - begin));
if(rtn == begin || rtn == end){
return random(begin,end);
}
return rtn;
}