import com.github.f4b6a3.uuid.UuidCreator; import com.github.f4b6a3.uuid.enums.UuidVariant; import com.github.f4b6a3.uuid.enums.UuidVersion; import com.github.f4b6a3.uuid.impl.TimeBasedUuidCreator; import java.time.Instant; public class UUIDGenerator { public static void main(String[] args...
import java.util.UUID;publicclassTimeBaseUUIDExample{publicstaticvoidmain(String[] args){ UUID timeBaseUUID = Generators.timeBasedGenerator().generate(); System.out.println(" Time based UUID :"+ timeBaseUUID.toString()); System.out.println(" UUID version is :"+ timeBaseUUID.version()); Sys...
String uuid_Name = uuid_random.toString(); //如:d1ee9700-2ff7-4234-970f-6a1e0ddc44fa(32个16进位数字) String[] uuid_Names = uuid_Name.split("-"); String uuid_Name2 = ""; for(String u : uuid_Names){ uuid_Name2 += u; } System.out.println("uuid的值: " + uuid_Name2 + ...
FasterXML Java Uuid 生成器 (JUG) https://github.com/cowtowncoder/java-uuid-generator UUID uuid = Generators.timeBasedGenerator().generate(); 原文由 Vadzim 发布,翻译遵循 CC BY-SA 3.0 许可协议 有用 回复 撰写回答 你尚未登录,登录后可以 和开发者交流问题的细节 关注并接收问题和回答的更新提醒 ...
importjava.util.UUID;publicclassTimeBasedGenerator{privatestaticlonglastTimestamp=0L;privatestaticintcounter=0;publicstaticsynchronizedStringgenerate(Stringprefix){longcurrentTimestamp=System.currentTimeMillis();if(currentTimestamp==lastTimestamp){counter++;}else{counter=0;lastTimestamp=currentTimestamp;}UUID...
(uuid.version()); // 1//UUID Version 1:基于时间的UUID(全球唯一)//UUID uuid1 = Generators.timeBasedGenerator().generate();//UUID Version 3:基于名字的UUID(相关名字重复)//UUID uuid3 = Generators.nameBasedGenerator().generate("sai");//UUID Version 4:随机UUID(java自带版本,极小概率重复)/...
1 Time-based UUID 2 DCE security UUID 3 Name-based UUID 4 Randomly generated UUID Returns: The version number of thisUUID variant public int variant() The variant number associated with thisUUID. The variant number describes the layout of theUUID. The variant number has the following meaning:...
time-based 基于时间的UUID(版本 1) 通过计算当前时间戳、随机数和机器MAC地址得到。由于有MAC地址,这个可以保证其在全球的唯一性。但是使用了MAC地址,就会有MAC地址暴露问题。若是局域网,可以用IP地址代替。 DCE Security DCE安全的UUID(版本 2) DCE(Distributed Computing Environment)安全的UUID和基于时间的UUID算法...
The 60 bit timestamp value is constructed from the time_low, time_mid, and time_hi fields of this UUID. The resulting timestamp is measured in 100-nanosecond units since midnight, October 15, 1582 UTC. The timestamp value is only meaningful in a time-based UUID, which has version type...
java中的uuid ,guid算法 import java.io.*; import java.security.*; public final class UUID implements Serializable, Comparable { private UUID(byte abyte0[]) { version = -1; variant = -1; timestamp = -1L; sequence = -1; node = -1L; ...