ABAP生成随机UUID/GUID

Question

我想生成一个随机UUID像Java用UUID.randomUUID().

我想出了这个功能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的.

我想将它用作数据库表中的主键.此密钥也将通过Web服务传输到Java应用程序,并将用户作为标识符传输.

你有什么想法如何,我可以生成随机UUID/GUID的ABAP？

Answer 1

你绝对相信创造GUID的总是一样的吗？因为这不应该发生.请注意,在快速循环中生成它们时,它们之间的差异可能只是一个字符.

Answer 2

首先,您使用的是一个过时的功能模块.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和以下方法:

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