convert uuid to long

  GUID is a 128-bit long number, which is generally expressed in hexadecimal notation.AlgorithmThe core idea is to combine the machine's Nic, local time, and a random number to generate a guid. Theoretically, if a machine generates 10000000

The GUID is a 128-bit long number, typically represented by a 16 binary. The core idea of the algorithm is to combine the machine's NIC, local time, and a random number to generate the GUID. Theoretically, if a machine produces 10 million GUIDs per

A detailed description of the MySQL UUID functionThere are two types of tools that can be used to generate unique value properties in MySQL: the UUID () function and the self-increment sequence, so what is the difference between the two? We compare

In daily life, random numbers are often used. They want to drop dice, capture dice, and draw lots. It's easy to implement. So we are doingProgramIt's really not easy to design a random number through your own program. Currently, many operating

GUID (globals unique identifiers) refers to the number generated on a machine, which ensures that all machines in the same time and space are unique. Generally, the platform provides APIs for generating guids. The generation algorithm is very

In Linux, there are commands dedicated to UUID generation:Uuidgen [-r] [-t].A 32-bit string can be generated. This is obtained in the command line. There is a/uuid. h in/usr/include/lib, which defines the data uuid and the unsigned character pointer.

In Linux, there are commands dedicated to UUID generation: Uuidgen [-r] [-t]. A 32-bit string can be generated. This is obtained in the command line. There is a/uuid. h in/usr/include/lib, which defines the data uuid and the unsigned character

Hibernate custom UUID (mysqluuid_short) Hibernate BitsCN.com UUID generation class 3 import org. apache. commons. logging. log; 4 import org. apache. commons. logging. logFactory; 5 import org. hibernate. hibernateException; 6 import org.

Note the place:Base64encoder,base64decoder is not part of the JDK standard library category, but is also included in the JDKWorkaround: Set the Rt.jar package under Eclipse import%java_home%\jre\lib directory as follows, Project->properties, select

Introduction to guidThe Open Software Foundation (OSF) has developed an algorithm that can generate unique identifiers to generate a globally unique identifier (UUID ). Microsoft uses the same algorithm in the Naming Standard of com! In COM,