[SAP ABAP开发技术总结]FTP到文件服务器，服务器上文件读写

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FTP文件到文件服务器
服务器上文件读写

20.3.     FTP

以下是两个FTP服务配置表：

下面是函数参数列表：

FUNCTION zmm_data_to_ftp.
*"----------------------------------------------------------------------
*"*"Local Interface:
*"  IMPORTING
*"     REFERENCE(IM_FUNID) LIKE  ZMWHIIBTFTP01-FUNID
*"     REFERENCE(IM_FILENAME) LIKE  RLGRAP-FILENAME
*"     REFERENCE(IM_RFCDEST) LIKE  RFCDES-RFCDEST DEFAULT 'SAPFTPA'
*"     REFERENCE(IM_FLG_ADD) TYPE  XFLAG OPTIONAL
*"  TABLES
*"      TEXT OPTIONAL
*"  EXCEPTIONS
*"      NO_FUNCTION_ID
*"      NOT_CONNECTED
*"      FTP_PATH_ERROR
*"      NOT_FTP_DATA
*"----------------------------------------------------------------------

  CONSTANTS: c_key TYPE i VALUE 26101957."密钥
  "SAPFTPA：表示以SAP服务器为目的地，上传与下载都会放在SAP服务器上；SAPFTP：以Client端为目的地
  CONSTANTS: c_rfcdest LIKE rfcdes-rfcdest VALUE 'SAPFTPA'.
  DATA: flg_noftp TYPE c.
  DATA:g_pwd TYPE xuncode .
  DATA:g_error,
       g_str(99),
       g_slen TYPE i,
       g_hdl TYPE i,
       g_cmd(120).
  DATA:i_result   TYPE TABLE OF text WITH HEADER LINE.
  DATA:l_file TYPE char128.

  CLEAR flg_noftp.

* temp file name 用户名 日期 时间 传入的文件名
  CONCATENATE sy-uname sy-datum sy-uzeit im_filename  INTO l_file.

* 从自定义表中读取(IP,user,pssword)
  CLEAR: zmwhiibtftp01,zmwhiibtftp02.
  SELECT SINGLE
    zmwhiibtftp02~ftpip
    zmwhiibtftp02~usrnm
    zmwhiibtftp02~passwd
    zmwhiibtftp02~filepathf
    zmwhiibtftp02~filepaths
    INTO
    (zmwhiibtftp02-ftpip,
    zmwhiibtftp02-usrnm,
    zmwhiibtftp02-passwd,
    zmwhiibtftp02-filepathf,"FTP服务器目录
    zmwhiibtftp02-filepaths"SAP服务器或Client端目录
    )
    FROM zmwhiibtftp01 INNER JOIN zmwhiibtftp02
      ON zmwhiibtftp02~funid = zmwhiibtftp01~funid
    WHERE zmwhiibtftp01~funid = im_funid."根据 funcid 联合查询
  IF sy-subrc <> 0.
    RAISE no_function_id.
  ENDIF.

* 将密码转化为SAP的格式
  g_slen = STRLEN( zmwhiibtftp02-passwd ).
  CALL FUNCTION 'HTTP_SCRAMBLE'
    EXPORTING
      SOURCE      = zmwhiibtftp02-passwd
      sourcelen   = g_slen
      key         = c_key
    IMPORTING
      destination = g_pwd."加密密码
  CALL FUNCTION 'FTP_CONNECT'
    EXPORTING
      user            = zmwhiibtftp02-usrnm
      password        = g_pwd
      host            = zmwhiibtftp02-ftpip
      rfc_destination = c_rfcdest
    IMPORTING
      handle          = g_hdl
    EXCEPTIONS
      not_connected   = 1.
  IF sy-subrc <> 0.
    RAISE not_connected.
  ENDIF.

* 进入指定的FTP服务器目录
  CLEAR g_str.
  CONCATENATE 'cd' zmwhiibtftp02-filepathf INTO g_str SEPARATED BY space.
  CALL FUNCTION 'FTP_COMMAND'
    EXPORTING
      handle        = g_hdl
      command       = g_str
    TABLES
      data          = i_result
    EXCEPTIONS
      tcpip_error   = 1
      command_error = 2
      data_error    = 3.
  IF sy-subrc <> 0 .
    RAISE ftp_path_error.
  ENDIF.

* 进入到指定的SAP服务器上的目录
  IF zmwhiibtftp02-filepaths IS NOT INITIAL.
    CLEAR g_str.
    CONCATENATE 'lcd' zmwhiibtftp02-filepaths INTO g_str SEPARATED BY space.
    CALL FUNCTION 'FTP_COMMAND'
      EXPORTING
        handle        = g_hdl
        command       = g_str
      TABLES
        data          = i_result
      EXCEPTIONS
        tcpip_error   = 1
        command_error = 2
        data_error    = 3.
    IF sy-subrc <> 0 .
      RAISE ftp_path_error.
    ENDIF.
  ENDIF.


* get ftp file to sap server as temp file if file exist and in append mode
* 如果FTP服务器上有存在 im_filename 文件，则取到SAP服务器上并以l_file为临时文件名
  IF im_flg_add = 'X'.
    CLEAR g_str.
    CONCATENATE 'get'  im_filename l_file  INTO g_str SEPARATED BY space.
    CONDENSE g_str.
    CALL FUNCTION 'FTP_COMMAND'
      EXPORTING
        handle        = g_hdl
        command       = g_str
      TABLES
        data          = i_result
      EXCEPTIONS
        tcpip_error   = 1
        command_error = 2
        data_error    = 3.
  ENDIF.

* internal table data to sap server by dataset
* 将内表中的数据 APPEND 到SAP服务器上的临时文件上
  OPEN DATASET l_file FOR APPENDING IN LEGACY TEXT MODE CODE PAGE '8400' WITH WINDOWS LINEFEED
  IGNORING CONVERSION ERRORS. "S20090224085328
  IF sy-subrc = 0.
    LOOP AT text.
      TRANSFER text TO l_file.
    ENDLOOP.
    CLOSE DATASET l_file .
  ENDIF.
**********
* 实际上可以使用 FTP_R3_TO_SERVER: 直接将SAP的内表数据传输到其他系统，而不用先在
* SAP服务器或Client上生成临时文件
**********
* put sap server file to ftp server by ftp command
* 将SAP服务器止的临时文件l_file通过FTP上传到FTP服务器上并以im_filename文件名存储
  CLEAR g_str.
**{modi by zhengjun S20120217100617
*  CONCATENATE 'put'   l_file  im_filename INTO g_str SEPARATED BY space.
  concatenate 'put "' l_file  '" "' im_filename '"' into g_str .
**}
  CONDENSE g_str.
  CALL FUNCTION 'FTP_COMMAND'
    EXPORTING
      handle        = g_hdl
      command       = g_str
    TABLES
      data          = i_result
    EXCEPTIONS
      tcpip_error   = 1
      command_error = 2
      data_error    = 3.
  IF sy-subrc <> 0 .
    flg_noftp = 'X'.
  ENDIF.
* delete sap server temp file.
* 删除SAP服务器上生成的临时文件
  DELETE DATASET l_file.
  IF  flg_noftp = 'X'.
    RAISE not_ftp_data.
  ENDIF.

* quit ftp
* 退出FTP 服务
  CLEAR g_str.
  g_str = 'quit'.
  CONDENSE g_str.
  CALL FUNCTION 'FTP_COMMAND'
    EXPORTING
      handle        = g_hdl
      command       = g_str
    TABLES
      data          = i_result
    EXCEPTIONS
      tcpip_error   = 1
      command_error = 2
      data_error    = 3.

* disconnect
* 关闭SAP与其他系统的连接
  CALL FUNCTION 'FTP_DISCONNECT'
    EXPORTING
      handle = g_hdl.

*关闭SAP与其他系统的RFC连接.
  CALL FUNCTION 'RFC_CONNECTION_CLOSE'
    EXPORTING
      destination = c_rfcdest
    EXCEPTIONS
      OTHERS      = 1.

ENDFUNCTION.

使用zmm_data_to_ftp：

    types: line(1800) .
    data: txt type standard table of line with header line.

    data: l_funid like zmwhiibtftp01-funid .
    data: l_filename like  rlgrap-filename.

    l_filename =  p_file.
    select single funid into l_funid from zmwhiibtftp01
    where funsk = p_funsk.
    call function 'ZMM_DATA_TO_FTP'
      exporting
        im_funid       = l_funid
        im_filename    = l_filename
        im_rfcdest     = 'SAPFTPA'
      tables
        text           = txt
      exceptions
        no_function_id = 1
        not_connected  = 2
        ftp_path_error = 3
        not_ftp_data   = 4
        others         = 5.

 

20.4.     文件读写

DATA: file TYPE string VALUE `jzjflights.dat`,
      wa   TYPE spfli.
OPEN DATASET file FOR OUTPUT IN BINARY MODE.
SELECT *
       FROM spfli
       INTO wa.
  TRANSFER wa TO file. "写
ENDSELECT.
CLOSE DATASET file.

 

DATA: file TYPE string VALUE `jzjflights.dat`,
      wa   TYPE spfli.
OPEN DATASET file FOR INPUT IN BINARY MODE.
DO.
  "由于没有使用MAXIMUM LENGTH选项，所以每次读取的最大字节数由wa所占字节数决定
  READ DATASET file INTO wa. "读
  IF sy-subrc = 0.
    WRITE: / wa-carrid,
             wa-connid,
             wa-countryfr,
             wa-cityfrom,
             wa-cityto,
             wa-fltime,
             wa-distance.
  ELSE.
    EXIT.
  ENDIF.
ENDDO.
CLOSE DATASET file.