java generate unique identifier

Guid: that is, globally unique identifier (globally unique identifier) is also called UUID (universally unique identifier ). Therefore, the guid is the UUID. GUID is a 128-bit long number, which is generally expressed in hexadecimal

(Original link: http://blog.csdn.net/carefree31441/article/details/3998553)The UUID meaning is a universal unique identifier (universally unique Identifier), which is a software construction standard and is also organized by the Open Software

The globally unique identifier (guid,globally unique Identifier) is a numeric identifier generated by the algorithm with a binary length of 128 bits. GUIDs are primarily used in networks or systems that have multiple nodes, multiple computers.

The globally unique identifier (guid,globally unique Identifier) is a numeric identifier generated by the algorithm with a binary length of 128 bits. GUIDs are primarily used in networks or systems that have multiple nodes, multiple computers.

GUID (Global unique identifier) Globally unique identifier, which is a 16-byte binary value generated by the identity number on the network card (each network card has a unique identification number) and the unique number of the CPU clock.The format

JavaScript generates GUID (globally unified identifier) and guid unified identifier GUID (globally unified identifier) refers to the number generated on a machine, which ensures that all machines in the same time and space are unique. Generally, the

Ing Hibernate Object Identifier: Hibernate The Persistent Object in corresponds to a data table in the database. Therefore, distinguishing different persistent objects cannot be like Java Method passed Object Default object Equals

The UUID (universally unique Identifier) Globally unique identifier, which is a number generated on a machine that guarantees that all machines in the same time and space are unique. Based on the standard calculations developed by the Open Software

  Object IdentifierIn relational database tables, the primary key is used to identify records and ensure the uniqueness of each record. In Java, you can determine whether the two objects are equal by comparing whether the memory addresses of the

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