在SAP中设计自动刷新的报表代码（又一例）

最新推荐文章于 2024-04-29 10:23:18 发布

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本文介绍了一个使用 ABAP 编写的程序，该程序能够自动刷新显示用户信息的 ALV 列表，并每五秒自动更新一次数据。通过调用 FM 'THUSRINFO' 获取用户信息并利用 'RFC_PING_AND_WAIT' 函数进行后台任务刷新。

REPORT z_alv_auto_refresh.
*>*********************************************************************
* This report displays User's info (SM04) using the FM :              *
* REUSE_ALV_LIST_DISPLAY                                              *
* The list is auto-refreshed (refresh time : 5 seconds)               *
*---------------------------------------------------------------------*

TYPE-POOLS: slis.                      " ALV Global Types

DATA :
gt_user LIKE uinfo OCCURS 0 WITH HEADER LINE. " User info in SM04

*---------------------------------------------------------------------*
START-OF-SELECTION.

PERFORM f_read_data.

PERFORM f_display_data.

*---------------------------------------------------------------------*
*       Form F_LIRE_DATA
*---------------------------------------------------------------------*
FORM f_read_data.

REFRESH gt_user.

* Get User's info
CALL FUNCTION 'THUSRINFO'
       TABLES
            usr_tabl = gt_user.

* Wait in a task
PERFORM f_call_rfc_wait.

ENDFORM.                               " F_READ_DATA
*---------------------------------------------------------------------*
*      Form F_DISPLAY_DATA
*---------------------------------------------------------------------*
FORM f_display_data.

DEFINE m_sort.
    add 1 to ls_sort-spos.
    ls_sort-fieldname = &1.
    append ls_sort to lt_sort.
END-OF-DEFINITION.

DEFINE m_event_exit.
    clear ls_event_exit.
    ls_event_exit-ucomm = &1.
    ls_event_exit-after = 'X'.
    append ls_event_exit to lt_event_exit.
END-OF-DEFINITION.

DATA :
    ls_layout     TYPE slis_layout_alv,
    lt_sort       TYPE slis_t_sortinfo_alv,
    ls_sort       TYPE slis_sortinfo_alv,
    lt_event_exit TYPE slis_t_event_exit,
    ls_event_exit TYPE slis_event_exit.

* Build Sort Table
m_sort 'ZEIT'.

* Build Event Exit Table
m_event_exit '&NTE'.                 " Refresh

ls_layout-zebra = 'X'.
ls_layout-colwidth_optimize = 'X'.

CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
       EXPORTING
            i_callback_program      = sy-cprog
            i_callback_user_command = 'USER_COMMAND'
            is_layout               = ls_layout
            i_structure_name        = 'UINFO'
            it_sort                 = lt_sort
            it_event_exit           = lt_event_exit
       TABLES
            t_outtab                = gt_user.

ENDFORM.                               " F_DISPLAY_DATA
*---------------------------------------------------------------------*
*       FORM USER_COMMAND                                             *
*---------------------------------------------------------------------*
FORM user_command USING i_ucomm     TYPE syucomm
                        is_selfield TYPE slis_selfield.     "#EC CALLED

CASE i_ucomm.
    WHEN '&NTE'.
      PERFORM f_read_data.
      is_selfield-refresh = 'X'.
      SET USER-COMMAND '&OPT'.         " Optimize columns width
ENDCASE.

ENDFORM.                               " USER_COMMAND
*---------------------------------------------------------------------*
*      Form F_CALL_RFC_WAIT
*---------------------------------------------------------------------*
FORM f_call_rfc_wait.

DATA lv_mssg(80).                                         "#EC NEEDED

* Wait in a task
CALL FUNCTION 'RFC_PING_AND_WAIT' STARTING NEW TASK '001'
    PERFORMING f_task_end ON END OF TASK
    EXPORTING
      seconds               = 5        " Refresh time
      busy_waiting          = space
    EXCEPTIONS
      RESOURCE_FAILURE      = 1
      communication_failure = 2 MESSAGE lv_mssg
      system_failure        = 3 MESSAGE lv_mssg
      OTHERS                = 4.

ENDFORM.                               " F_CALL_RFC_WAIT
*---------------------------------------------------------------------*
*      Form F_TASK_END
*---------------------------------------------------------------------*
FORM f_task_end USING u_taskname.

DATA lv_mssg(80).                                         "#EC NEEDED

* Receiving task results
RECEIVE RESULTS FROM FUNCTION 'RFC_PING_AND_WAIT'
    EXCEPTIONS
      RESOURCE_FAILURE      = 1
      communication_failure = 2 MESSAGE lv_mssg
      system_failure        = 3 MESSAGE lv_mssg
      OTHERS                = 4.

CHECK sy-subrc EQ 0.
SET USER-COMMAND '&NTE'.             " Refresh

ENDFORM.                               " F_TASK_END
*************** END OF PROGRAM Z_ALV_AUTO_REFRESH *********************