答：因为时间有限,我只能给你思路了.首先新建一个配制文件.XML,.properties都可,设三个参数固定数字,日期,流水号.首先,写一个定时任务,每天00:00执行,用初始化这三个参数.再先一个UTIL类,这个类的功能就是读取流水号,给这个流水号+1,再把这个流水号...

答：Calendar calendar = Calendar.getInstance();System.out.println("现在："+calendar.getTime().getTime());calendar.add(Calendar.YEAR, 10);System.out.println("10年后："+calendar.getTime().getTime());输出： 现在：1404208483914 10年后...

答：订单号生成规则很多，比较常用的就是采用时间戳+随机数+序列号。 如：2015062615273130001 有问题欢迎提问，满意请采纳哦！

答：SQL Server 中设置自动增长，步长为1。 插入时，不要插入ID的值。 例如： my_table 表中有字段：id（主键自增），title，author，content 执行插入 String sql = "insert into my_table values ('"+title+"','"+author+"','"+content+"')"; ====...

答：为了30分： import java.text.SimpleDateFormat; import java.util.Date; public class Test { public static final String PREFIX = "DD"; private static long code; public static void main(String[] args) { System.out.println(Test.nextC...

答：UUID 把- 去了 String uuid = UUID.randomUUID().toString(); uuid.substring(0, 8)+uuid.substring(9,13)+uuid.substring(14,18)+uuid.substring(19,23)+uuid.substring(24);

答：/** * 得到一个新的订单代码 * 说明，此函数还没有进行过多线程测试，更新数据库时未加锁 * @return 新的订单代码 */ public String getOrderCode(){ //getParameter这个方法就是从数据库取2个参数的值 ORDER_CODE_DATE 和 //ORDER_CODE_NO是数...

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Rochester’s lips, and he muttered— “No, by God! I took care that none should hear of it—or of her under that name Rochester’s lips, and he muttered— “No, by God! I took care that

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