目前最广泛应用的 UUID,即是微软的 Microsoft's Globally Unique Identifiers (GUIDs),而其他重要的应用,则有 Linux ext2/ext3 档案系统、LUKS 加密分割区、GNOME、KDE、Mac OS X 等等。 2组成 UUID是指在一台机器上生成的数字,它保证对在同一时空中的所有机器都是唯一的。通常平台会提供生成的API。按照开放软...
A universally unique identifier (UUID) is an identifier standard used in software construction. A UUID is simply a 128-bit value. The meaning of each bit is defined by any of several variants. UUD的全称是Universally unique identifier,硬翻的话就是生成全宇宙都不可能重复的字符串序列.它的使用场景...
The version number associated with thisUUID. The version number describes how thisUUIDwas generated. The version number has the following meaning: 1 Time-based UUID 2 DCE security UUID 3 Name-based UUID 4 Randomly generated UUID Returns:
The version number has the following meaning: 1 Time-based UUID 2 DCE security UUID 3 Name-based UUID 4 Randomly generated UUID Returns: The version number of this UUID variant public int variant() The variant number associated with this UUID. The variant number describes the ...
UUID Version 7 (UUIDv7) was introduced to improve the randomness of UUIDv4. UUIDv7 encodes a Unix timestamp with millisecond precision in the first 48 bits of the UUID, meaning that UUIDv7 is time-based and sequential. This eliminates the drawback of poor temporal locality whe...
A universally unique identifier (UUID) is an identifier standard used in software construction. The meaning of each bit is defined by any of several variants. It is a 128-bit value. The tool will test if your 'GUID' is in fact a GUID. You can simply ente
Calculator analyzes your UUID/GUID number. If it's a correct UUID then it tries to detect used UUID version scheme.
UUID(long mostSigBits, long leastSigBits) Constructs a newUUIDusing the specified data. 方法概要 方法 限定符和类型方法和说明 intclockSequence() The clock sequence value associated with this UUID. intcompareTo(java.lang.Object val) Compares this UUID with the specified UUID. ...
The version number has the following meaning: 1 Time-based UUID 2 DCE security UUID 3 Name-based UUID 4 Randomly generated UUID Java documentation forjava.util.UUID.version(). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used ...
domain or URL, but the meaning of the name is not imposed by the specification, version 4 - based entirely on random numbers or pseudorandom, version 5 - modification of version 3 using the hash function SHA-1. A sample UUID in version 1 contains: f68b5140⏞time_low⏟4 bytes−...