1 //用于生成出库的ID
2 public static String getexportid(){
3 //生成规则：Ck+时间戳(20170626143520)+6位的随机数
4 return "CK"+getnowstr()+getStringRandom(6);
5 }
6 public static String getstorageid(){
7 //生成规则：Rk+时间戳(20170626143520)+6位的随机数
8 return "RK"+getnowstr()+getStringRandom(8);
9 }
10
11 private static String getnowstr(){
12 Date date = new Date();
13 SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
14 String str = sdf.format(date);
15 return str;
16 }
17 //随机生成六位数
18 private static String getStringRandom(int length) {
19
20 String val = "";
21 Random random = new Random();
22
23 //参数length，表示生成几位随机数
24 for(int i = 0; i < length; i++) {
25
26 String charOrNum = random.nextInt(2) % 2 == 0 ? "char" : "num";
27 //输出字母还是数字
28 if( "char".equalsIgnoreCase(charOrNum) ) {
29 //输出是大写字母还是小写字母
30 int temp = random.nextInt(2) % 2 == 0 ? 65 : 97;
31 val += (char)(random.nextInt(26) + temp);
32 } else if( "num".equalsIgnoreCase(charOrNum) ) {
33 val += String.valueOf(random.nextInt(10));
34 }
35 }
36 return val;
37 }
