## 接口的使用
org.springframework.util.IdGenerator

- 使用IdGenerator的程序包
  程序包 | 说明
  --- | ---
  org.springframework.util | Miscellaneous utility classes, such as String manipulation utilities, a Log4J configurer, and a state holder for paged lists of objects.

- - ### org.springframework.util中IdGenerator的使用

    实现IdGenerator的org.springframework.util中的类
    限定符和类型 | 类和说明
    --- | ---
    `class` | `AlternativeJdkIdGenerator` An `IdGenerator` that uses `SecureRandom` for the initial seed and `Random` thereafter, instead of calling `UUID.randomUUID()` every time as `JdkIdGenerator` does.
    `class` | `JdkIdGenerator` An `IdGenerator` that calls `UUID.randomUUID()`.
    `class` | `SimpleIdGenerator` A simple `IdGenerator` that starts at 1 and increments by 1 with each call.