app.myoss.cloud.core.utils

Class RandomUtils

java.lang.Object

app.myoss.cloud.core.utils.RandomUtils

public class RandomUtils
extends Object

随机字符串工具类

Since:

2019年5月19日 下午2:10:25

Author:

jerry

Field Summary

Fields

Modifier and Type	Field and Description
static SecureRandom	SECURE_RANDOM 安全的随机算法

Constructor Summary

Constructors

Constructor and Description
RandomUtils()

Method Summary

Modifier and Type	Method and Description
static String	buildSequenceNo(long nextValue, int length) 补足n位,如果不够就左边补0, 超过n位的截取前n位
static String	uuid() 生成 uuid 随机字符串

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SECURE_RANDOM

public static final SecureRandom SECURE_RANDOM

安全的随机算法

Constructor Detail

RandomUtils

public RandomUtils()

Method Detail

uuid

public static String uuid()

生成 uuid 随机字符串

Returns:

随机字符串

buildSequenceNo

public static String buildSequenceNo(long nextValue,
                                     int length)

补足n位,如果不够就左边补0, 超过n位的截取前n位

Parameters:

nextValue - 下一位序列号值

length - 序列号最大的长度

Returns:

序列号