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ABAP总结之二，BDC完整版

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BDC（batch data communication）是SAP常用的一种数据传输方法。用于一些数据量大，但是对速度又要求不高的数据传输。

    在实施中，很多开发顾问都忽略了BDC的日志和出错管理。这给用户在使用中带来了很大的不便。比如：哪些数据是成功生成的，哪些是失败的？那些失败的，原因的是什么？程序问题还是数据问题？

    我觉得，既然是要做一套程序，那就应该尽可能地为客户考虑，减少日后的维护量。对于BDC程序来讲，日志和出错管理应该是必备的。

    下面讲一下，BDC的两种通用写法。

1.    Call Transaction: 顾名思义，就是直接调用BDC进行数据批量导入。优点：方便快捷，程序处理方便。缺点：日志管理能力差，需自己建透明表来维护数据。我只是把它用作测试用途，不做正式使用。

2.    BDC Insert：这是一种不直接运行，而是将BDC程序生成session，间接运行的一种方法。优点：通过T-code SM35可以进行运行管理及日志管理，方便查错。缺点：相对方法1来说实现起来比较繁琐。我主要是用这种方法来实现BDC功能。

下面主要来谈一下BDC Insert这种方法。

1.   需要在程序中调用 function 'BDC_INSERT'来把BDCDATA生成SESSION.

2.   程序RSBDCSUB是执行SESSION的专用程序，要建立相应的VARIANT，后续建立JOB中使用

3.   建立BATCH JOB来定期执行RSBDCSUB，从而实现，SESSION自动执行的目的

4.   当然，不使用程序RSBDCSUB和JOB，每次手工在SM35中执行SESSION也是可以的


下面是我写的一个实例：

*----------------------------------------------------------------------*
* Program Name: Z_KEVIN_ADV_BDC
* Project     : N/A
* Author      : Kevin.Zhang
* Date        : 2007.1.1
* Module      : N/A
* Description : Advanced BDC
*
*
*
* Special features: N/A
*
*
*----------------------------------------------------------------------*
* Modifications:
* Author      Date     Commented as  Description
*-----------  --------  -----------  ----------------------------------*
*
*----------------------------------------------------------------------*

REPORT  Z_KEVIN_ADV_BDC.
*$*$----------------------------------------------------------------$*$*
*$*$       Global Types, Data Statements, Ranges, Constants         $*$*
*$*$----------------------------------------------------------------$*$*

*-----------------------------------------------------------------------
*                   Tables
*-----------------------------------------------------------------------
TABLES: COAS, CEPC.

*-----------------------------------------------------------------------
*                    Internal Tables and Work Areas
*-----------------------------------------------------------------------
DATA: BEGIN OF GT_TABLE OCCURS 0,    "internal order table
        AUART LIKE AUFK-AUART,       "order type
        AUFNR LIKE AUFK-AUFNR,       "order number
        KTEXT LIKE AUFK-KTEXT,       "description
        BUKRS LIKE AUFK-BUKRS,       "company code
        GSBER LIKE AUFK-GSBER,       "business area
        PRCTR LIKE AUFK-PRCTR,       "profit center
        FUNCA LIKE AUFK-FUNC_AREA,   "function area
END OF GT_TABLE.

DATA: BEGIN OF GT_EXISTS OCCURS 0.   "existed IO
        INCLUDE STRUCTURE GT_TABLE.
DATA: END OF GT_EXISTS.

DATA: BEGIN OF GT_PRFT_CNTR OCCURS 0."the profit center not existing IO
        INCLUDE STRUCTURE GT_TABLE.
DATA: END OF GT_PRFT_CNTR.

DATA: BEGIN OF GT_SUBMIT OCCURS 0.   "the submitted IO
        INCLUDE STRUCTURE GT_TABLE.
DATA: END OF GT_SUBMIT.

DATA: BEGIN OF GT_BDCDATA OCCURS 0.  "BDC DATA
        INCLUDE STRUCTURE BDCDATA.
DATA: END OF GT_BDCDATA.

DATA: BEGIN OF GT_MESSTAB OCCURS 10. "message table
        INCLUDE STRUCTURE BDCMSGCOLL.
DATA: END OF GT_MESSTAB.
DATA: GT_IMESG LIKE MESG OCCURS 0 WITH HEADER LINE.
*-----------------------------------------------------------------------
*                  Variables
*-----------------------------------------------------------------------
DATA: GV_GROUP(12) TYPE C VALUE 'INTERNAL_ORD',      "BDC Name
      GV_USER(12)  TYPE C,                           "BDC User
      GV_KEEP(1)   TYPE C VALUE 'X',                 " ' '=Delete,'X'=keep after processing
      GV_HOLDDATE  LIKE SY-DATUM.                    "Date

DATA:  GV_FLAG(1) TYPE C,
       GV_LIN TYPE I.                                "number of orders

DATA: GV_C170(170),
      GV_C_ULINE(50) VALUE '__________________________________________________'.


*$*$----------------------------------------------------------------$*$*
*$*$                      Selection Screen                          $*$*
*$*$----------------------------------------------------------------$*$*
*-----------------------------------------------------------------------
*                   Selection Screen
*-----------------------------------------------------------------------
PARAMETERS: BDCTYPE(1) TYPE C DEFAULT 'B' NO-DISPLAY,
            BDCMODE    LIKE BDCRUN-BDC_AMODUS DEFAULT 'A' NO-DISPLAY.

SELECTION-SCREEN COMMENT 10(70) TEXT-001.
PARAMETERS: IN_FILE(128) DEFAULT 'C:\TEMP\*.txt'.
SELECTION-SCREEN SKIP 1.
*-----------------------------------------------------------------------
*                   At Selection Screen
*-----------------------------------------------------------------------

*--------- AT SELECTION-SCREEN ON VALUE-REQUEST ----------
AT SELECTION-SCREEN ON VALUE-REQUEST FOR IN_FILE.

  CALL FUNCTION 'WS_FILENAME_GET'
    EXPORTING
      DEF_FILENAME     = '*.txt'
      DEF_PATH         = 'C:\DATA'
      MASK             = ',All Files,*.*,Text Files,*.txt;*.doc.'
      MODE             = 'O'
      TITLE            = 'Please choose file to use '
    IMPORTING
      FILENAME         = IN_FILE
    EXCEPTIONS
      INV_WINSYS       = 1
      NO_BATCH         = 2
      SELECTION_CANCEL = 3
      SELECTION_ERROR  = 4
      OTHERS           = 5.


*$*$----------------------------------------------------------------$*$*
*$*$                          Main Program                          $*$*
*$*$----------------------------------------------------------------$*$*

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

  REFRESH GT_TABLE.

* Uploading the data which will be inserted into the internal table
  CALL FUNCTION 'WS_UPLOAD'
    EXPORTING
      FILENAME            = IN_FILE
      FILETYPE            = 'DAT'
    TABLES
      DATA_TAB            = GT_TABLE
    EXCEPTIONS
      CONVERSION_ERROR    = 1
      FILE_OPEN_ERROR     = 2
      FILE_READ_ERROR     = 3
      INVALID_TABLE_WIDTH = 4
      INVALID_TYPE        = 5
      NO_BATCH            = 6
      UNKNOWN_ERROR       = 7
      OTHERS              = 8.

  IF SY-SUBRC <> 0.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                 'Unable to upload input file '
                                 IN_FILE '' ''.
  ENDIF.

  SORT GT_TABLE BY  AUFNR GSBER DESCENDING.
  DELETE ADJACENT DUPLICATES FROM GT_TABLE COMPARING AUFNR.

  PERFORM OPEN_GROUP.
  PERFORM FILL_BDC_DATA.
  PERFORM BDC_CLOSE_GROUP.
  PERFORM WRITE_REPORT.

*--------- END-OF-SELECTION ----------

*$*$----------------------------------------------------------------$*$*
*$*$                         Subroutines                            $*$*
*$*$----------------------------------------------------------------$*$*

*&---------------------------------------------------------------------*
*&      Form  OPEN_GROUP
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM OPEN_GROUP.
  GV_USER = SY-UNAME.

  CALL FUNCTION 'BDC_OPEN_GROUP'
    EXPORTING
      CLIENT   = SY-MANDT
      GROUP    = GV_GROUP
      HOLDDATE = GV_HOLDDATE
      KEEP     = GV_KEEP
      USER     = GV_USER.

  IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
ENDFORM.                               " OPEN_GROUP

*&---------------------------------------------------------------------*
*&      Form  FILL_BDC_DATA
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM FILL_BDC_DATA.

  CLEAR GT_TABLE.

  LOOP AT GT_TABLE.
    CLEAR GT_MESSTAB.
    CLEAR GT_BDCDATA.
    REFRESH GT_BDCDATA.
    REFRESH GT_MESSTAB.
    CLEAR GV_FLAG.

*   Check if Profit Center exists.
    SELECT SINGLE * FROM CEPC
           WHERE PRCTR = GT_TABLE-PRCTR.

    IF SY-SUBRC <> 0.
      CLEAR GT_PRFT_CNTR.
      MOVE-CORRESPONDING GT_TABLE TO GT_PRFT_CNTR.
      APPEND GT_PRFT_CNTR.
      GV_FLAG = 'X'.
    ENDIF.

*   check if Internal Order has already been created.
    SELECT SINGLE * FROM COAS
       WHERE AUFNR = GT_TABLE-AUFNR.

    IF SY-SUBRC = 0.
      CLEAR GT_EXISTS.
      MOVE-CORRESPONDING GT_TABLE TO GT_EXISTS.
      APPEND GT_EXISTS.
      GV_FLAG = 'X'.
    ENDIF.

    IF GV_FLAG <> 'X'.

      PERFORM BDCDATA USING:   'X' 'SAPMKAUF' '0100',                 "order type
                               ' ' 'COAS-AUART' GT_TABLE-AUART,
                               ' ' 'BDC_OKCODE' '=KOKR'.

      PERFORM BDCDATA USING:   'X' 'SAPLSPO4' '0300',                 "control area
                               ' ' 'SVALD-VALUE(01)' '1000',
                               ' ' 'BDC_OKCODE' '=FURT'.

      PERFORM BDCDATA USING:   'X' 'SAPMKAUF' '0100',                 "ok code
                               ' ' 'BDC_OKCODE' '/00'.


      PERFORM BDCDATA USING:   'X' 'SAPMKAUF' '0600',                 "order master data
                               ' ' 'COAS-AUFNR' GT_TABLE-AUFNR,
                               ' ' 'COAS-KTEXT' GT_TABLE-KTEXT,
                               ' ' 'COAS-BUKRS' GT_TABLE-BUKRS,
                               ' ' 'COAS-GSBER' GT_TABLE-GSBER,
                               ' ' 'COAS-PRCTR' GT_TABLE-PRCTR,
                               ' ' 'COAS-FUNC_AREA' GT_TABLE-FUNCA,
                               ' ' 'BDC_OKCODE' '=SICH'.

*     PERFORM CALL_TRANSACTION. "for test purpose

      PERFORM BDC_INSERT.
      MOVE-CORRESPONDING GT_TABLE TO GT_SUBMIT.
      APPEND GT_SUBMIT.

    ENDIF.
  ENDLOOP.
ENDFORM.                               " FILL_BDC_DATA

*&---------------------------------------------------------------------*
*&      Form  BDC_INSERT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM BDC_INSERT.
  CALL FUNCTION 'BDC_INSERT'
    EXPORTING
      TCODE     = 'KO01'
    TABLES
      DYNPROTAB = GT_BDCDATA.

  IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.

ENDFORM.                               " BDC_INSERT

*&---------------------------------------------------------------------*
*&      Form  BDC_CLOSE_GROUP
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM BDC_CLOSE_GROUP.
  CALL FUNCTION 'BDC_CLOSE_GROUP'.

  IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


ENDFORM.                               " BDC_CLOSE_GROUP

*&---------------------------------------------------------------------*
*&      Form  CALL_TRANSACTION
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM CALL_TRANSACTION.
  CALL TRANSACTION 'KO01' USING GT_BDCDATA
                           MODE BDCMODE
                       MESSAGES INTO GT_MESSTAB.
*  IF SYST-SUBRC <> 0.
*    CALL FUNCTION 'WRITE_MESSAGE'
*         EXPORTING
*              MSGID = SY-MSGID
*              MSGNO = SY-MSGNO
*              MSGTY = SY-MSGTY
*              MSGV1 = SY-MSGV1
*              MSGV2 = SY-MSGV2
*              MSGV3 = SY-MSGV3
*              MSGV4 = SY-MSGV4
*              MSGV5 = ' '
*         IMPORTING
*              ERROR = ERROR
*              MESSG = MESSG
*              MSGLN = MSGLN.


ENDFORM.                               " CALL_TRANSACTION

*&---------------------------------------------------------------------*
*&      Form  BDCDATA
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      -->P_0310   text
*      -->P_0311   text
*----------------------------------------------------------------------*
FORM BDCDATA USING P_BEGIN P_FIELD1 P_FIELD2.

  CLEAR GT_BDCDATA.
  CASE P_BEGIN.
    WHEN 'X'.
      GT_BDCDATA-PROGRAM  = P_FIELD1.
      GT_BDCDATA-DYNPRO   = P_FIELD2.
      GT_BDCDATA-DYNBEGIN = 'X'.
    WHEN SPACE.
      GT_BDCDATA-FNAM  = P_FIELD1.
      GT_BDCDATA-FVAL  = P_FIELD2.
  ENDCASE.
  APPEND GT_BDCDATA.

ENDFORM.                               " BDCDATA
*&---------------------------------------------------------------------*
*&      Form  WRITE_REPORT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM WRITE_REPORT.

   DESCRIBE TABLE GT_EXISTS LINES GV_LIN.

  IF GV_LIN >= 1.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                'The following Internal Orders already exist.' '' '' ''.

    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                   GV_C_ULINE '' '' ''.
    LOOP AT GT_EXISTS.
      PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                GT_EXISTS-AUFNR '' '' ''.
    ENDLOOP.

    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                 GV_C_ULINE '' '' ''.
  ENDIF.


  DESCRIBE TABLE GT_PRFT_CNTR LINES GV_LIN.


  IF GV_LIN >= 1.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                  'The following Profit centers do not exist.' '' '' ''.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                   GV_C_ULINE '' '' ''.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                    'Internal Order Profit Center.' '' '' ''.

    LOOP AT GT_PRFT_CNTR.
      PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                GT_PRFT_CNTR-AUFNR
                                GT_PRFT_CNTR-PRCTR '' ''.
    ENDLOOP.

    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                 GV_C_ULINE '' '' ''.
  ENDIF.


  DESCRIBE TABLE GT_SUBMIT LINES GV_LIN.


  IF GV_LIN >= 1.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                   'BDC was created for the following Internal Orders.'
                    '' '' ''.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                   GV_C_ULINE '' '' ''.

    LOOP AT GT_SUBMIT.
      PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                GT_SUBMIT-AUFNR '' '' ''.
    ENDLOOP.

    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                   GV_C_ULINE '' '' ''.
  ENDIF.

  PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                  'The following Internal Orders have no Business Area.'
                  '' '' ''.
  PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                 GV_C_ULINE '' '' ''.

  DELETE GT_TABLE WHERE NOT GSBER = ' '.

  LOOP AT GT_TABLE.
    PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                              GT_TABLE-AUFNR '' '' ''.
  ENDLOOP.

  PERFORM COLLECT_MESSAGES USING 'Z3' 'I' '000'
                                 GV_C_ULINE '' '' ''.
ENDFORM.                               " WRITE_REPORT


*&---------------------------------------------------------------------*
*&      Form  COLLECT_MESSAGES
*&---------------------------------------------------------------------*
*       Collects messgaes into rep tree table and writes them to
*       screen for regular reporting
*----------------------------------------------------------------------*
*      -->P_MSGID  message id
*      -->P_MSGTY  messgae type
*      -->P_MSGNR  msg number
*      -->P_MSG1  text 1
*      -->P_MSG2  text 2
*      -->P_MSG3  text 3
*      -->P_MSG4  text 4
*----------------------------------------------------------------------*
FORM COLLECT_MESSAGES USING    P_MSGID
                               P_MSGTY
                               P_MSGNR
                               P_MSGV1
                               P_MSGV2
                               P_MSGV3
                               P_MSGV4.

  CLEAR GT_IMESG.

  GT_IMESG-ARBGB = P_MSGID.
  GT_IMESG-MSGTY = P_MSGTY.
  GT_IMESG-TXTNR = P_MSGNR.
  GT_IMESG-MSGV1+0(2) = '@ '.
  GT_IMESG-MSGV1+2(48) = P_MSGV1.
  GT_IMESG-MSGV2 = P_MSGV2.
  GT_IMESG-MSGV3 = P_MSGV3.
  GT_IMESG-MSGV4 = P_MSGV4.
  APPEND GT_IMESG.

  CONCATENATE P_MSGV1 P_MSGV2 P_MSGV3 P_MSGV4
              INTO GV_C170 SEPARATED BY SPACE.
  WRITE:/ GV_C170.

ENDFORM.                    " collect_messages
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1 楼 harry_2013 2010-12-01  
大致看了一遍没太懂 不过等俺有时间了一定照着做一遍 小弟刚从java转过来
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