[代码]创建.ZIP压缩文件[CL_ABAP_ZIP]

SAP提供了一个类CL_ABAP_ZIP来创建.zip扩展名的压缩文件。

代码：

先将文件通过cl_gui_frontend_services=>gui_upload以BIN的文件类型上载，然后通过cl_abap_zip中的方法add()

save()压缩，最后下载到本地。

REPORT ztest_zip.

TYPES: BEGIN OF bin_file,
         name TYPE string,
         size TYPE i,
         data TYPE solix_tab,
       END OF bin_file  .

DATA: lv_filename     TYPE string,
      wa_bindata      TYPE bin_file,
      it_bindata      TYPE STANDARD TABLE OF bin_file,
      oref_zip        TYPE REF TO cl_abap_zip,
      lv_zip_xstring  TYPE xstring,
      lv_xstring      TYPE xstring,
      lv_path         TYPE string,
      it_filetab      TYPE filetable,
      lv_retcode      TYPE i,
      v_usr           TYPE i,
      v_zip_size      TYPE i,
      it_zip_bin_data TYPE STANDARD TABLE OF raw255,
      v_dest_filepath TYPE string.

DATA lv_filesize TYPE i.
DATA wa_filetab LIKE LINE OF it_filetab.

"create object
CREATE OBJECT oref_zip.

"upload
cl_gui_frontend_services=>file_open_dialog(
    EXPORTING
      window_title            = 'Select files that you want to ZIP'
      multiselection          = 'X'
    CHANGING
      file_table              = it_filetab
      rc                      = lv_retcode
      user_action             = v_usr ).

LOOP AT it_filetab INTO wa_filetab.

  lv_filename = wa_filetab-filename.

  cl_gui_frontend_services=>gui_upload(
    EXPORTING
      filename                = lv_filename
      filetype                = 'BIN'
    IMPORTING
     filelength               = wa_bindata-size
    CHANGING
      data_tab                = wa_bindata-data ).

  CALL FUNCTION 'SO_SPLIT_FILE_AND_PATH'
    EXPORTING
      full_name     = lv_filename
    IMPORTING
      stripped_name = wa_bindata-name
    EXCEPTIONS
      x_error       = 1
      OTHERS        = 2.

  APPEND wa_bindata TO it_bindata.

ENDLOOP.


LOOP AT it_bindata INTO wa_bindata.

  CALL FUNCTION 'SCMS_BINARY_TO_XSTRING'
    EXPORTING
      input_length = wa_bindata-size
    IMPORTING
      buffer       = lv_xstring
    TABLES
      binary_tab   = wa_bindata-data.


  oref_zip->add( name    = wa_bindata-name
                      content = lv_xstring ).

ENDLOOP        .

lv_zip_xstring = oref_zip->save( ).

CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
  EXPORTING
    buffer        = lv_zip_xstring
  IMPORTING
    output_length = v_zip_size
  TABLES
    binary_tab    = it_zip_bin_data.

cl_gui_frontend_services=>file_save_dialog(
    EXPORTING
      window_title         = 'SELECT THE LOCATION TO SAVE THE FILE'
      file_filter          = '(*.ZIP)|*.ZIP|'
    CHANGING
      filename             = lv_filename
      path                 = lv_path
      fullpath             = v_dest_filepath ).


cl_gui_frontend_services=>gui_download(
     EXPORTING
       bin_filesize              = v_zip_size
       filename                  = v_dest_filepath
       filetype                  = 'BIN'
     IMPORTING
       filelength                = lv_filesize
     CHANGING
       data_tab                  = it_zip_bin_data ).