primary-key - 生成随机 GUID

Question

我想生成一个随机的UUID喜欢 Java与 UUID.randomUUID() .

我想出了函数GUID_GENERATE并像这样使用它

    DO 5 TIMES.
       CALL FUNCTION 'GUID_CREATE'
        IMPORTING
         ev_guid_16 = ev_guid_16
         ev_guid_22 = ev_guid_22
         ev_guid_32 = ev_guid_32.

       WRITE: /, ev_guid_16, ev_guid_22, ev_guid_32.
    ENDDO.

这个程序的结果总是一样的 GUID .每次请求我都需要一个新的随机数。

我想将它用作数据库表中的主键。该 key 也将作为标识符通过 Web 服务传输到 Java 应用程序和用户。

你有什么想法我如何生成随机 UUID/GUID在 ABAP ?

Answer 1

首先，您使用的是过时的功能模块。源代码开头的注释说明了这一点。

*"----------------------------------------------------------------------
* NOW this function has been replaced, see note 935047      "BINK215094
* 28.6.2006 The function module has been switched to the new UUID methods
*           which exist in the class cl_system_uuid
*           - due to compatibility reasons we catch the exceptions
*           - sy-subrc not touched manually
*             (sy-subrc was set in case of an error when calling the former
*             'RFCControl' kernel-call, but it wasn't evaluated and finally
*             overwritten when leaving this function)
*"----------------------------------------------------------------------

请使用类 CL_SYSTEM_UUID以及以下方法:

IF_SYSTEM_UUID_STATIC~CREATE_UUID_X16
IF_SYSTEM_UUID_STATIC~CREATE_UUID_C22
IF_SYSTEM_UUID_STATIC~CREATE_UUID_C26
IF_SYSTEM_UUID_STATIC~CREATE_UUID_C32