批次号生成

/** *  批次号生成 *  生成规则：当天日期[8位]+序列号[24位]，如：20181031383385283484579432669936 * @return */public static String getRandomBatchNum() {   SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");       String format = dateFormat.format(new Date());       int max=24;       int min=24;       Random random = new Random();       int s = random.nextInt(max)%(max-min+1) + min;       StringBuffer buffer =new StringBuffer();       for(int i=0;i<s;i++){           Integer val = (int)(Math.random()*9+1);           buffer.append(val.toString());       }   return format+buffer.toString();}

/** * 生成唯一序列 规则：当前时间+6位随机数(yyyyMMddHHmmss123345) * @param shortTableName 表名(缩写) 例：uc - user_customer * @return * @throws Exception */public static synchronized String getSequence(String shortTableName) throws Exception {   String currentDate = getCurrentDate("yyyyMMddHHmmssS");   String random = random(8);   return shortTableName + currentDate + random;}

原文地址：https://www.cnblogs.com/SmileWindy/p/10063640.html